:root {
  --canvas: #f4f6fb;
  --surface: #ffffff;
  --surface-soft: #f6f8ff;
  --ink: #1b2140;
  --muted: #5f6884;
  --line: #dbe0f0;
  --forest: #4056d6;
  --forest-deep: #17204f;
  --forest-soft: #e8ecff;
  --coral: #f05263;
  --coral-dark: #c8323f;
  --gold: #ffb000;
  --blue: #0b9fc4;
  --shadow: 0 26px 70px rgba(23, 32, 79, 0.18);
  --small-shadow: 0 12px 30px rgba(23, 32, 79, 0.09);
  --paper-shadow: 0 14px 34px rgba(35, 44, 92, 0.07);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--canvas);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(64, 86, 214, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(64, 86, 214, 0.035) 1px, transparent 1px),
    var(--canvas);
  background-size:
    28px 28px,
    28px 28px,
    auto;
  font-family:
    "Segoe UI",
    "PingFang SC",
    "Microsoft YaHei",
    sans-serif;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

[hidden] {
  display: none !important;
}

h1,
h2,
p {
  overflow-wrap: anywhere;
}

.login-view {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 30px 20px;
  background:
    linear-gradient(115deg, transparent 0 73%, rgba(255, 255, 255, 0.035) 73% 73.25%, transparent 73.25%),
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(145deg, #080d23, var(--forest) 62%, #1d264a);
  background-size:
    auto,
    32px 32px,
    32px 32px,
    auto;
}

.login-shell {
  width: min(980px, 100%);
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(340px, 0.94fr);
  gap: 48px;
  align-items: center;
}

.login-story {
  position: relative;
  padding-left: 23px;
  color: #ffffff;
}

.login-story::before {
  content: "";
  position: absolute;
  top: 7px;
  bottom: 7px;
  left: 0;
  width: 4px;
  background: linear-gradient(
    180deg,
    var(--coral) 0 30%,
    transparent 30% 35%,
    var(--gold) 35% 65%,
    transparent 65% 70%,
    #8f9bc9 70%
  );
}

.login-brand,
.library-brand {
  display: flex;
  align-items: center;
  gap: 13px;
}

.login-brand {
  margin-bottom: 54px;
}

.brand-mark {
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  color: var(--forest-deep);
  background: var(--gold);
  border-radius: 14px 14px 14px 5px;
  box-shadow:
    0 0 0 1px rgba(11, 17, 41, 0.14),
    0 9px 20px rgba(3, 7, 25, 0.18);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.brand-name {
  font-size: 18px;
  font-weight: 800;
}

.eyebrow,
.section-label,
.panel-kicker {
  margin: 0 0 10px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.eyebrow {
  color: #b9bfd6;
}

.login-story h1 {
  max-width: 560px;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(38px, 5vw, 62px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.035em;
}

.login-copy {
  max-width: 500px;
  margin: 24px 0 0;
  color: #c9cddd;
  font-size: 16px;
  line-height: 1.8;
}

.login-features {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.login-features span {
  padding: 8px 12px;
  color: #e5e7f1;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 999px;
  font-size: 12px;
}

.login-usage {
  margin: 18px 0 0;
  color: #9fa5bc;
  font-size: 12px;
}

.login-panel {
  position: relative;
  overflow: hidden;
  padding: 36px;
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 22px 22px 22px 8px;
  box-shadow: var(--shadow);
  animation: panel-rise 420ms ease both;
}

.login-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--coral) 0 34%,
    var(--gold) 34% 67%,
    var(--blue) 67%
  );
}

.panel-kicker {
  color: var(--coral);
}

.login-panel h2 {
  margin: 0;
  font-size: 30px;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.panel-copy {
  margin: 10px 0 26px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.login-form {
  display: grid;
  gap: 10px;
}

.login-form label {
  margin-top: 5px;
  color: #343744;
  font-size: 13px;
  font-weight: 800;
}

.login-form input {
  width: 100%;
  height: 50px;
  padding: 0 14px;
  color: var(--ink);
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 10px;
  outline: 0;
}

.password-field {
  position: relative;
}

.password-field input {
  padding-right: 72px;
}

.password-visibility-button {
  position: absolute;
  top: 50%;
  right: 8px;
  min-width: 52px;
  height: 34px;
  padding: 0 10px;
  color: #454B61;
  background: #edeef4;
  border: 1px solid #cfd2dd;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 800;
  transform: translateY(-50%);
}

.password-visibility-button:hover {
  color: #171f3f;
  background: #e2e4ee;
  border-color: #9ea3b9;
}

.password-visibility-button:focus-visible {
  outline: 3px solid rgba(90, 102, 150, 0.2);
  outline-offset: 2px;
}

.login-form input:focus,
.search-field:focus-within {
  border-color: #5a6696;
  box-shadow: 0 0 0 4px rgba(90, 102, 150, 0.13);
}

.primary-button {
  min-height: 50px;
  margin-top: 10px;
  padding: 0 18px;
  color: #ffffff;
  background: var(--coral);
  border: 1px solid var(--coral);
  border-radius: 10px;
  font-weight: 800;
  transition:
    background 150ms ease,
    border-color 150ms ease,
    transform 150ms ease;
}

.primary-button:hover {
  background: var(--coral-dark);
  border-color: var(--coral-dark);
  transform: translateY(-1px);
}

.primary-button:disabled {
  cursor: wait;
  opacity: 0.7;
  transform: none;
}

.form-message {
  min-height: 20px;
  margin: 5px 0 0;
  color: #b42318;
  font-size: 13px;
  line-height: 1.45;
}

.auth-mode-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-bottom: 18px;
  padding: 4px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.auth-mode-button {
  height: 40px;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 800;
  transition:
    color 150ms ease,
    background 150ms ease;
}

.auth-mode-button:hover {
  color: var(--forest);
  background: #eeeff4;
}

.auth-mode-button.is-active {
  color: #ffffff;
  background: var(--forest);
}

.auth-mode-button:focus-visible {
  outline: 3px solid rgba(90, 102, 150, 0.24);
  outline-offset: 2px;
}

.auth-notice {
  margin: -8px 0 18px;
  padding: 10px 12px;
  color: #6b5316;
  background: #fdf4dc;
  border: 1px solid #ecd7a3;
  border-radius: 10px;
  font-size: 12.5px;
  line-height: 1.5;
}

.auth-notice[data-tone="warn"] {
  color: #8a2c28;
  background: #fdecea;
  border-color: #f2c6c1;
}

.auth-mirror {
  margin: -8px 0 18px;
  padding: 10px 12px;
  color: #242d50;
  background: #e8eaf4;
  border: 1px solid #bcc2dc;
  border-radius: 10px;
  font-size: 12.5px;
  line-height: 1.6;
}

.auth-mirror a {
  color: #172663;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.auth-extra-field {
  display: grid;
  gap: 10px;
}

.field-hint {
  margin: -2px 0 4px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.link-button {
  justify-self: start;
  margin: 2px 0 4px;
  padding: 0;
  color: #2f3b6d;
  background: none;
  border: 0;
  font-size: 13px;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.link-button:hover {
  color: var(--forest-deep);
}

.link-button:focus-visible {
  outline: 3px solid rgba(90, 102, 150, 0.2);
  outline-offset: 2px;
}

.secondary-button {
  min-height: 44px;
  padding: 0 16px;
  color: #232b4a;
  background: #e8eaf1;
  border: 1px solid #c6cad8;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 800;
}

.secondary-button:hover {
  color: #141a33;
  background: #dcdfeb;
  border-color: #a5aac0;
}

.secondary-button:disabled {
  opacity: 0.6;
}

.secondary-button:focus-visible {
  outline: 3px solid rgba(90, 102, 150, 0.2);
  outline-offset: 2px;
}

.reset-token-fields {
  display: grid;
  gap: 10px;
}

.app-view {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 286px minmax(0, 1fr);
  align-items: start;
}

.library-panel {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  padding: 24px 18px;
  overflow-y: auto;
  overscroll-behavior-y: contain;
  scrollbar-gutter: stable;
  color: #ffffff;
  background:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(180deg, var(--forest-deep), #101734);
  background-size:
    22px 22px,
    22px 22px,
    auto;
}

.library-top {
  position: relative;
  padding: 0 6px;
  padding-bottom: 19px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
}

.library-top::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 6px;
  width: 44px;
  height: 3px;
  background: var(--gold);
}

.library-brand {
  align-items: flex-start;
}

.library-brand .brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px 12px 12px 4px;
  font-size: 17px;
}

.library-brand div {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.library-brand strong {
  font-size: 16px;
}

.library-brand span:not(.brand-mark) {
  color: #9fa5bc;
  font-size: 12px;
}

.account-row {
  margin-top: 24px;
  padding: 11px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: #c7cbdc;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  font-size: 12px;
}

.user-label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.logout-button {
  min-height: 29px;
  padding: 0 9px;
  color: #ffffff;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 7px;
  font-size: 12px;
}

.logout-button:hover {
  background: rgba(255, 255, 255, 0.1);
}

.logout-button:disabled {
  opacity: 0.55;
}

.account-link {
  min-height: 29px;
  padding: 0 9px;
  display: inline-flex;
  align-items: center;
  color: #ffe6ac;
  background: rgba(213, 170, 79, 0.16);
  border: 1px solid rgba(213, 170, 79, 0.42);
  border-radius: 7px;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
}

.account-link:hover {
  color: #ffffff;
  background: rgba(213, 170, 79, 0.3);
}

.library-shortcuts {
  margin-top: 22px;
  display: grid;
  gap: 8px;
}

.library-shortcut {
  padding: 10px 12px;
  display: grid;
  gap: 3px;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  text-decoration: none;
  transition:
    background 0.16s ease,
    border-color 0.16s ease;
}

.library-shortcut:hover {
  background: rgba(255, 255, 255, 0.11);
  border-color: rgba(255, 255, 255, 0.2);
}

.library-shortcut:focus-visible {
  outline: 3px solid rgba(213, 170, 79, 0.42);
  outline-offset: 2px;
}

.library-shortcut strong {
  font-size: 13px;
}

.library-shortcut span {
  color: #9fa5bc;
  font-size: 11px;
}

.library-heading {
  margin: 34px 6px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #9fa5bc;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.library-heading strong {
  min-width: 25px;
  padding: 3px 6px;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  text-align: center;
}

.library-heading-label {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.library-collapse-all-button {
  flex: 0 0 auto;
  min-height: 26px;
  padding: 0 9px;
  color: #e1c16c;
  background: transparent;
  border: 1px solid rgba(225, 193, 108, 0.42);
  border-radius: 7px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
  white-space: nowrap;
}

.library-collapse-all-button:hover {
  background: rgba(225, 193, 108, 0.14);
}

.library-toggle-button {
  display: none;
  width: calc(100% - 12px);
  min-height: 58px;
  margin: 0 6px 12px;
  padding: 10px 12px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 9px;
  text-align: left;
}

.library-toggle-button:hover {
  background: rgba(255, 255, 255, 0.11);
}

.library-toggle-copy {
  min-width: 0;
  display: grid;
  gap: 3px;
}

.library-toggle-copy strong {
  font-size: 13px;
}

.library-toggle-copy span {
  overflow: hidden;
  color: #9fa5bc;
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.library-toggle-chevron {
  flex: 0 0 auto;
  color: #d5aa4f;
  font-size: 18px;
  line-height: 1;
  transition: transform 160ms ease;
}

.library-panel.is-mobile-expanded .library-toggle-chevron {
  transform: rotate(180deg);
}

.material-search-field {
  min-height: 42px;
  margin: 0 6px 12px;
  padding: 0 11px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #9fa5bc;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 9px;
}

.material-search-field:focus-within {
  border-color: rgba(225, 193, 108, 0.75);
  box-shadow: 0 0 0 3px rgba(225, 193, 108, 0.12);
}

.material-search-field .search-symbol {
  color: #d8b95d;
  font-size: 20px;
}

.material-search-field input {
  min-width: 0;
  width: 100%;
  height: 40px;
  padding: 0;
  color: #ffffff;
  background: transparent;
  border: 0;
  outline: 0;
  font-size: 12px;
}

.material-search-field input::placeholder {
  color: #8d93aa;
}

.material-search-field input::-webkit-search-cancel-button {
  display: none;
}

.resource-list {
  display: grid;
  gap: 14px;
}

.resource-group {
  display: grid;
  gap: 8px;
}

.resource-group-heading {
  width: 100%;
  min-height: 30px;
  padding: 4px 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: #ffffff;
  background: transparent;
  border: 0;
  border-radius: 8px;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.resource-group-heading:hover,
.resource-group-heading:focus-visible {
  background: rgba(255, 255, 255, 0.07);
}

.resource-group-label {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.resource-group-chevron {
  flex: 0 0 auto;
  width: 12px;
  color: #d5aa4f;
  font-size: 13px;
  line-height: 1;
  text-align: center;
  transition: transform 160ms ease;
}

.resource-group.is-collapsed .resource-group-chevron {
  transform: rotate(-90deg);
}

.resource-group.is-collapsed > :not(.resource-group-heading) {
  display: none;
}

.resource-group-heading strong {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
}

.resource-group-count {
  flex: 0 0 auto;
  min-width: 23px;
  padding: 3px 6px;
  color: #c6cbdd;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  font-size: 10px;
  text-align: center;
}

.resource-section-label {
  margin: 3px 6px 0;
  color: #9197ae;
  font-size: 11px;
  line-height: 1.4;
}

.resource-empty,
.resource-search-empty {
  margin: 0 6px;
  padding: 9px 10px;
  color: #7f859c;
  background: rgba(255, 255, 255, 0.035);
  border: 1px dashed rgba(255, 255, 255, 0.13);
  border-radius: 8px;
  font-size: 11px;
  line-height: 1.5;
}

.resource-button {
  width: 100%;
  min-height: 76px;
  padding: 12px;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) auto;
  align-items: center;
  gap: 11px;
  color: #d9dce8;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 9px;
  text-align: left;
  transition:
    background 150ms ease,
    border-color 150ms ease;
}

.resource-button:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.08);
}

.resource-button.is-active {
  color: #ffffff;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.145),
    rgba(255, 255, 255, 0.07)
  );
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow:
    inset 3px 0 0 var(--gold),
    0 12px 24px rgba(3, 6, 18, 0.16);
}

.resource-index {
  width: 36px;
  height: 42px;
  display: grid;
  place-items: center;
  color: var(--forest-deep);
  background: #e1c16c;
  border-radius: 9px 9px 9px 3px;
  box-shadow: 0 6px 16px rgba(3, 6, 18, 0.14);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 800;
}

.resource-button:nth-child(3n + 2) .resource-index {
  background: #a8b0d2;
}

.resource-button:nth-child(3n + 3) .resource-index {
  background: #f0b49f;
}

.resource-copy {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.resource-copy strong {
  overflow: hidden;
  font-size: 13px;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.resource-copy span {
  overflow: hidden;
  color: #9197ae;
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.resource-count {
  min-width: 28px;
  padding: 4px 7px;
  color: #c6cbdd;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  font-size: 11px;
  text-align: center;
}

.resource-count.is-loading {
  color: #8d93aa;
}

.resource-item {
  display: grid;
  gap: 6px;
  margin-bottom: 4px;
}

.resource-unit-picker {
  margin: 0 6px;
  padding: 6px 9px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  color: #a9aec3;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 8px;
  font-size: 11px;
}

.resource-unit-picker span {
  white-space: nowrap;
}

.resource-unit-picker select {
  width: 100%;
  min-width: 0;
  height: 28px;
  padding: 0 6px;
  color: #ffffff;
  background: rgba(9, 14, 32, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 6px;
  font-size: 11px;
}

.resource-unit-picker select:focus-visible {
  outline: 3px solid rgba(90, 102, 150, 0.32);
  outline-offset: 2px;
}

.resource-unit-picker option {
  color: #101734;
  background: #ffffff;
}

.workspace {
  position: relative;
  min-width: 0;
  padding: 34px clamp(22px, 4vw, 56px) 34px;
  background: linear-gradient(
    180deg,
    rgba(255, 254, 250, 0.72),
    rgba(255, 254, 250, 0) 310px
  );
}

.workspace-header {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  padding-left: 20px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.workspace-header::before {
  content: "";
  position: absolute;
  top: 7px;
  bottom: 27px;
  left: 0;
  width: 4px;
  background: linear-gradient(
    180deg,
    var(--coral) 0 30%,
    var(--gold) 30% 64%,
    var(--blue) 64%
  );
}

.workspace-header::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 20px;
  height: 1px;
  background: linear-gradient(
    90deg,
    var(--coral) 0 54px,
    var(--line) 54px
  );
}

.workspace-title {
  min-width: 0;
}

.back-to-library-button {
  display: none;
  min-height: 34px;
  margin: 0 0 13px;
  padding: 0 12px;
  align-items: center;
  gap: 7px;
  color: var(--forest);
  background: rgba(21, 29, 60, 0.065);
  border: 1px solid rgba(21, 29, 60, 0.14);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 750;
}

.back-to-library-button:hover {
  background: rgba(21, 29, 60, 0.11);
}

.section-label {
  color: var(--coral);
}

.workspace-title h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.035em;
}

.active-description {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.progress-panel {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 13px;
}

.progress-ring {
  --progress: 0%;
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  background: conic-gradient(var(--coral) var(--progress), #dcdee7 0);
  border-radius: 50%;
  box-shadow: 0 8px 22px rgba(8, 13, 34, 0.08);
}

.progress-ring::before {
  content: "";
  grid-area: 1 / 1;
  width: 54px;
  height: 54px;
  background: var(--canvas);
  border-radius: 50%;
}

.progress-ring span {
  z-index: 1;
  grid-area: 1 / 1;
  font-size: 13px;
  font-weight: 800;
}

.progress-panel > div:last-child {
  display: grid;
  gap: 5px;
}

.progress-panel strong {
  font-size: 13px;
}

.progress-panel span {
  color: var(--muted);
  font-size: 12px;
}

.toolbar {
  margin: 24px 0 20px;
  padding: 12px 11px 11px;
  display: grid;
  gap: 10px;
  background: rgba(255, 254, 250, 0.94);
  border: 1px solid var(--line);
  border-top: 3px solid var(--forest);
  border-radius: 12px 12px 12px 4px;
  box-shadow: var(--paper-shadow);
}

.toolbar-search-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-field {
  min-width: 0;
  min-height: 46px;
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 13px;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 9px;
}

.search-symbol {
  flex: 0 0 auto;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 23px;
  line-height: 1;
  transform: rotate(-18deg);
}

.search-field input {
  min-width: 0;
  width: 100%;
  height: 44px;
  padding: 0;
  color: var(--ink);
  background: transparent;
  border: 0;
  outline: 0;
}

.search-field input::placeholder {
  color: #8b8e98;
}

.search-field input::-webkit-search-cancel-button {
  display: none;
}

.result-count {
  flex: 0 0 auto;
  margin: 0;
  padding: 0 8px;
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}

.result-count strong {
  color: var(--ink);
  font-size: 20px;
}

.meaning-controls {
  min-height: 42px;
  padding: 7px 8px 7px 11px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: linear-gradient(90deg, #edeef4, #f5f6f8);
  border: 1px solid #d8dae4;
  border-radius: 9px;
}

.meaning-controls-label {
  color: #4f5361;
  font-size: 11px;
  font-weight: 800;
}

.meaning-control-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.meaning-control-button {
  min-height: 28px;
  padding: 0 9px;
  color: #4f5361;
  background: #ffffff;
  border: 1px solid #d3d6e0;
  border-radius: 7px;
  font-size: 11px;
  font-weight: 800;
}

.meaning-control-button:hover {
  border-color: #9da3bd;
}

.meaning-control-button.is-active {
  color: #ffffff;
  background: var(--forest);
  border-color: var(--forest);
}

.view-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.view-button {
  min-height: 36px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #4f5361;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 9px;
  font-size: 12px;
  font-weight: 800;
}

.view-button:hover {
  border-color: #9da3bd;
}

.view-button.is-active {
  color: #ffffff;
  background: var(--forest);
  border-color: var(--forest);
  box-shadow: 0 7px 16px rgba(15, 24, 60, 0.15);
}

.view-count {
  min-width: 20px;
  padding: 2px 5px;
  color: #616573;
  background: #edeef3;
  border-radius: 999px;
  font-size: 10px;
  text-align: center;
}

.view-button.is-active .view-count {
  color: var(--forest-deep);
  background: #dcdfeb;
}

.collection-filters {
  padding-top: 10px;
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--line);
}

.collection-filter-label {
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

.collection-filter-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.collection-filter-button {
  min-height: 32px;
  padding: 0 10px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #4f5361;
  background: #f7f8fa;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 11px;
  font-weight: 800;
}

.collection-filter-button:hover {
  border-color: #9da3bd;
}

.collection-filter-button.is-active {
  color: #ffffff;
  background: var(--coral);
  border-color: var(--coral);
  box-shadow: 0 7px 16px rgba(207, 81, 76, 0.18);
}

.collection-filter-count {
  min-width: 19px;
  padding: 2px 5px;
  color: #616573;
  background: #eaecf2;
  border-radius: 999px;
  font-size: 10px;
  text-align: center;
}

.collection-filter-button.is-active .collection-filter-count {
  color: var(--forest-deep);
  background: #ffffff;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.vocab-card {
  --card-accent: var(--gold);
  position: relative;
  min-width: 0;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: linear-gradient(180deg, #fffefb, var(--surface));
  border: 1px solid var(--line);
  border-radius: 14px 14px 14px 5px;
  box-shadow: 0 7px 22px rgba(15, 21, 43, 0.04);
  transition:
    border-color 150ms ease,
    box-shadow 150ms ease,
    transform 150ms ease;
}

.vocab-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 74px;
  height: 3px;
  background: var(--card-accent);
}

.card-grid .vocab-card:nth-child(3n + 2) {
  --card-accent: #7781a8;
}

.card-grid .vocab-card:nth-child(3n + 3) {
  --card-accent: #d58d78;
}

.vocab-card:hover {
  border-color: #b9bdcc;
  box-shadow: var(--small-shadow);
  transform: translateY(-1px);
}

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.card-number {
  color: var(--card-accent);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.card-number::before {
  content: "NO. ";
  font-size: 9px;
  letter-spacing: 0.08em;
}

.phrase-block {
  min-width: 0;
  flex: 1 1 auto;
}

.card-source {
  display: block;
  margin-bottom: 8px;
  color: var(--coral);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.phrase {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(22px, 2.3vw, 28px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.phonetic {
  min-height: 18px;
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.speak-button {
  min-height: 34px;
  flex: 0 0 auto;
  padding: 0 11px;
  color: var(--forest);
  background: var(--forest-soft);
  border: 1px solid transparent;
  border-radius: 9px;
  font-size: 12px;
  font-weight: 800;
}

.speak-button:hover {
  border-color: #9da3bd;
}

.meaning {
  margin: 0;
  color: #35394a;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.55;
}

.answer-panel {
  display: grid;
  gap: 10px;
}

.meaning-reveal-button {
  min-height: 31px;
  justify-self: start;
  padding: 0 10px;
  color: #454c68;
  background: #eef0f6;
  border: 1px solid #cfd3e1;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 800;
}

.meaning-reveal-button:hover {
  border-color: #8f97b8;
}

.answer-panel:not(.is-visible) .meaning,
.answer-panel:not(.is-visible) .translation {
  filter: blur(7px);
  user-select: none;
  pointer-events: none;
}

.sentence {
  margin: 0;
  padding: 14px 0 0;
  color: var(--ink);
  border-top: 1px dashed #cfd1da;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 14px;
  line-height: 1.65;
}

.word-lookup {
  display: inline;
  margin: 0;
  padding: 0 1px 1px;
  color: inherit;
  background: transparent;
  border: 0;
  border-bottom: 1px dashed rgba(90, 102, 150, 0.58);
  border-radius: 2px;
  font: inherit;
  line-height: inherit;
  text-align: inherit;
}

.word-lookup:hover,
.word-lookup[aria-expanded="true"] {
  color: var(--forest-deep);
  background: #dcdfeb;
  border-bottom-color: transparent;
}

.word-lookup:focus-visible {
  outline: 3px solid rgba(90, 102, 150, 0.3);
  outline-offset: 2px;
}

.translation {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-family:
    "Segoe UI",
    "PingFang SC",
    "Microsoft YaHei",
    sans-serif;
  font-size: 13px;
}

.word-popover {
  position: fixed;
  z-index: 50;
  width: min(360px, calc(100vw - 24px));
  max-height: min(440px, calc(100vh - 24px));
  overflow: auto;
  padding: 15px;
  color: var(--ink);
  background: #ffffff;
  border: 1px solid #c9cddc;
  border-radius: 12px;
  box-shadow: 0 22px 54px rgba(15, 21, 43, 0.2);
}

.word-popover-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.word-popover-word {
  display: block;
  color: var(--forest-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 21px;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.word-popover-phonetic {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.word-popover-close {
  min-height: 28px;
  flex: 0 0 auto;
  padding: 0 8px;
  color: #4f5361;
  background: #f3f4f7;
  border: 1px solid var(--line);
  border-radius: 7px;
  font-size: 11px;
  font-weight: 800;
}

.word-popover-close:hover {
  border-color: #9da3bd;
}

.word-popover-close:focus-visible {
  outline: 3px solid rgba(90, 102, 150, 0.3);
  outline-offset: 2px;
}

.word-popover-content {
  display: grid;
  gap: 8px;
  padding-top: 11px;
}

.word-popover-label {
  color: var(--coral);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.word-popover-source {
  justify-self: start;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(31, 49, 122, 0.1);
  color: #1f317a;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.word-popover-meaning {
  margin: 0;
  color: #35394a;
  font-size: 13px;
  line-height: 1.6;
}

.word-popover-status {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.word-popover-status.is-error {
  color: #a84f3e;
}

.card-actions {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 7px;
}

.favorite-button,
.unknown-button,
.known-button {
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: 9px;
  font-size: 12px;
  font-weight: 800;
}

.favorite-button {
  color: #765813;
  background: #fbf1cc;
}

.favorite-button:hover {
  border-color: #d8be67;
}

.favorite-button[aria-pressed="true"] {
  color: #ffffff;
  background: #957313;
}

.unknown-button {
  color: #8b3e30;
  background: #fae5df;
}

.unknown-button:hover {
  border-color: #dba999;
}

.unknown-button[aria-pressed="true"] {
  color: #ffffff;
  background: #a84f3e;
}

.known-button {
  color: #784d21;
  background: #fbecd8;
}

.known-button:hover {
  border-color: #d9b483;
}

.vocab-card.is-known {
  background: #f8f9fb;
  border-color: #9ea5c0;
}

.vocab-card.is-known .known-button {
  color: #ffffff;
  background: #39477d;
}

.vocab-card.is-favorite {
  border-color: #d8be67;
}

.vocab-card.is-unknown {
  border-color: #dba999;
}

.empty-state {
  min-height: 300px;
  display: grid;
  place-content: center;
  gap: 8px;
  color: var(--muted);
  text-align: center;
}

.empty-state strong {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 22px;
}

.workspace-footer {
  margin-top: 28px;
  padding-top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: #828590;
  border-top: 1px solid var(--line);
  font-size: 12px;
}

.workspace-footer span:last-child {
  color: #9a9da8;
  text-align: right;
}

.toolbar-view-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.toolbar-actions {
  flex: 0 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.anki-export-launch-button {
  min-height: 38px;
  padding: 0 13px;
  color: var(--forest);
  background: #edeef4;
  border: 1px solid #c9cddb;
  border-radius: 9px;
  font-size: 12px;
  font-weight: 800;
}

.anki-export-launch-button:hover {
  background: #e1e4ee;
  border-color: #9da3bd;
}

.practice-launch-button {
  min-height: 38px;
  flex: 0 0 auto;
  padding: 0 14px;
  color: #ffffff;
  background: var(--coral);
  border: 1px solid var(--coral);
  border-radius: 9px;
  box-shadow: 0 8px 18px rgba(207, 81, 76, 0.2);
  font-size: 12px;
  font-weight: 800;
}

.practice-launch-button:hover {
  background: var(--coral-dark);
  border-color: var(--coral-dark);
}

.open-source-launch-button {
  min-height: 38px;
  flex: 0 0 auto;
  padding: 0 13px;
  color: #2f4f6d;
  background: #eef3f8;
  border: 1px solid #c6d6e4;
  border-radius: 9px;
  font-size: 12px;
  font-weight: 800;
}

.open-source-launch-button:hover {
  background: #e2ebf4;
  border-color: #9db8ce;
}

.open-source-launch-button:focus-visible,
.open-source-close-button:focus-visible,
.open-source-filter:focus-visible,
.open-source-search-button:focus-visible,
.open-source-input:focus-visible,
.open-source-link:focus-visible {
  outline: 3px solid rgba(90, 102, 150, 0.3);
  outline-offset: 2px;
}

.open-source-panel {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  padding: 18px;
}

.open-source-scrim {
  position: absolute;
  inset: 0;
  background: rgba(11, 17, 41, 0.46);
}

.open-source-card {
  position: relative;
  display: grid;
  gap: 12px;
  width: min(760px, 100%);
  max-height: min(720px, calc(100vh - 36px));
  overflow: auto;
  padding: 20px;
  background: #ffffff;
  border: 1px solid #c9cddc;
  border-radius: 12px;
  box-shadow: 0 24px 60px rgba(8, 13, 34, 0.28);
}

.open-source-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.open-source-head > div {
  display: grid;
  gap: 3px;
}

.open-source-head .section-label {
  margin: 0;
  color: #6d7181;
}

.open-source-head h2 {
  margin: 0;
  color: var(--forest);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 21px;
}

.open-source-close-button {
  min-height: 30px;
  flex: 0 0 auto;
  padding: 0 10px;
  color: #5c6070;
  background: #f3f4f7;
  border: 1px solid var(--line);
  border-radius: 7px;
  font-size: 11px;
  font-weight: 800;
}

.open-source-close-button:hover {
  border-color: #9da3bd;
}

.open-source-intro {
  margin: 0;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.65;
}

.open-source-search {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.open-source-input {
  flex: 1 1 220px;
  min-height: 38px;
  padding: 0 12px;
  color: var(--ink);
  background: #f7f8fa;
  border: 1px solid #d5d8e3;
  border-radius: 9px;
  font-size: 13px;
}

.open-source-search-button {
  min-height: 38px;
  flex: 0 0 auto;
  padding: 0 14px;
  color: #ffffff;
  background: var(--forest);
  border: 1px solid var(--forest);
  border-radius: 9px;
  font-size: 12px;
  font-weight: 800;
}

.open-source-search-button:hover {
  background: var(--forest-deep);
  border-color: var(--forest-deep);
}

.open-source-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.open-source-filter {
  min-height: 30px;
  padding: 0 11px;
  color: #464B61;
  background: #f2f3f7;
  border: 1px solid #d5d8e3;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 800;
}

.open-source-filter:hover {
  border-color: #9da3bd;
}

.open-source-filter.is-active {
  color: #ffffff;
  background: var(--forest);
  border-color: var(--forest);
}

.open-source-status {
  margin: 0;
  color: var(--muted);
  font-size: 11.5px;
}

.open-source-list {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.open-source-item {
  display: grid;
  gap: 4px;
  padding: 11px 12px;
  background: #f8f9fb;
  border: 1px solid #dddfe9;
  border-radius: 9px;
}

.open-source-item-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
}

.open-source-link {
  color: var(--forest);
  font-size: 13.5px;
  font-weight: 800;
}

.open-source-license {
  color: #7a7d8b;
  font-size: 11px;
  font-style: normal;
}

.open-source-item-module {
  justify-self: start;
  padding: 2px 7px;
  color: #1f317a;
  background: rgba(31, 49, 122, 0.1);
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.open-source-item p {
  margin: 0;
  color: #404456;
  font-size: 12.5px;
  line-height: 1.6;
}

.open-source-empty {
  padding: 14px;
  color: var(--muted);
  background: #f8f9fb;
  border: 1px dashed #d5d8e3;
  border-radius: 9px;
  font-size: 12.5px;
  text-align: center;
}

@media (max-width: 640px) {
  .open-source-panel {
    align-items: end;
    padding: 0;
  }

  .open-source-card {
    width: 100%;
    max-height: calc(100vh - 44px);
    padding: 16px;
    border-radius: 14px 14px 0 0;
  }

  .open-source-search-button {
    flex: 1 1 100%;
  }
}

.anki-export-panel {
  padding: 14px;
  display: grid;
  gap: 13px;
  background: #f7f8fa;
  border: 1px solid #d5d8e3;
  border-radius: 9px;
}

.anki-export-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.anki-export-head > div {
  display: grid;
  gap: 3px;
}

.anki-export-head .section-label {
  margin: 0;
  color: #6d7181;
}

.anki-export-head strong {
  color: var(--forest);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 19px;
}

.anki-export-close-button {
  min-height: 30px;
  padding: 0 9px;
  color: #5c6070;
  background: #ffffff;
  border: 1px solid #d5d7e0;
  border-radius: 7px;
  font-size: 11px;
  font-weight: 800;
}

.anki-export-close-button:hover {
  border-color: #9da3bd;
}

.anki-export-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.anki-export-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.anki-export-summary {
  min-width: 0;
  margin: 0;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 5px;
  color: #656876;
  font-size: 12px;
}

.anki-export-summary strong {
  color: var(--forest);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 24px;
}

.anki-export-scope {
  color: #898c97;
}

.anki-export-status {
  min-height: 16px;
  margin: -5px 0 0;
  color: #475073;
  font-size: 11px;
  line-height: 1.5;
}

.anki-export-status.is-error {
  color: #a43f3b;
}

.practice-studio {
  margin: 24px 0 20px;
}

.practice-header {
  position: relative;
  overflow: hidden;
  padding: 24px 26px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  color: #ffffff;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.045), transparent 58%),
    repeating-linear-gradient(
      90deg,
      transparent 0 31px,
      rgba(255, 255, 255, 0.025) 31px 32px
    ),
    var(--forest-deep);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px 14px 6px 6px;
  box-shadow: 0 16px 34px rgba(8, 13, 34, 0.13);
}

.practice-header::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: linear-gradient(
    180deg,
    var(--coral),
    var(--gold) 52%,
    #838eb9
  );
}

.practice-header > * {
  position: relative;
}

.practice-header .section-label {
  color: #e1c16c;
}

.practice-header h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 34px;
  line-height: 1.1;
}

.practice-source {
  margin: 9px 0 0;
  color: #a9aec3;
  font-size: 12px;
  line-height: 1.55;
}

.practice-section-switch {
  width: fit-content;
  margin-top: 12px;
  padding: 4px;
  display: inline-flex;
  gap: 3px;
  background: #ffffff;
  border: 1px solid #d6d9e3;
  border-radius: 10px;
  box-shadow: 0 4px 13px rgba(8, 13, 34, 0.06);
}

.practice-section-tab {
  min-height: 36px;
  padding: 0 15px;
  color: #616573;
  background: transparent;
  border: 0;
  border-radius: 7px;
  font-size: 12px;
  font-weight: 800;
}

.practice-section-tab:hover {
  color: #313a5e;
}

.practice-section-tab.is-active {
  color: #ffffff;
  background: var(--forest);
  box-shadow: 0 5px 13px rgba(21, 29, 60, 0.2);
}

.practice-secondary-button,
.practice-primary-button,
.practice-record-button,
.practice-stop-button {
  min-height: 42px;
  padding: 0 14px;
  border-radius: 9px;
  font-size: 12px;
  font-weight: 800;
}

.practice-secondary-button {
  color: #4f5361;
  background: #ffffff;
  border: 1px solid var(--line);
}

.practice-secondary-button:hover {
  border-color: #9da3bd;
}

.practice-header .practice-secondary-button {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.22);
}

.practice-header .practice-secondary-button:hover {
  background: rgba(255, 255, 255, 0.13);
}

.practice-primary-button {
  color: #ffffff;
  background: var(--coral);
  border: 1px solid var(--coral);
}

.practice-primary-button:hover {
  background: var(--coral-dark);
  border-color: var(--coral-dark);
}

.practice-record-button {
  color: #ffffff;
  background: #2d3c76;
  border: 1px solid #2d3c76;
}

.practice-record-button:hover {
  background: #24305f;
  border-color: #24305f;
}

.practice-stop-button {
  color: #8b3e30;
  background: #fae5df;
  border: 1px solid #e3b7aa;
}

.practice-stop-button:hover {
  border-color: #c88673;
}

.practice-secondary-button:disabled,
.practice-primary-button:disabled,
.practice-record-button:disabled,
.practice-stop-button:disabled,
.practice-text-button:disabled {
  cursor: not-allowed;
  opacity: 0.52;
}

.practice-layout {
  margin-top: 16px;
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(310px, 0.85fr);
  align-items: start;
  gap: 16px;
}

.practice-stage,
.practice-sidebar {
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px 12px 12px 4px;
  box-shadow: 0 8px 24px rgba(15, 21, 43, 0.045);
}

.practice-stage {
  padding: 24px;
}

.practice-sidebar {
  padding: 18px;
  display: grid;
  gap: 18px;
}

.practice-stage-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.practice-counter {
  padding: 5px 9px;
  color: #454c68;
  background: #edeef4;
  border: 1px solid #d8dae4;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
}

.practice-status {
  color: var(--coral-dark);
  font-size: 12px;
  font-weight: 800;
}

.practice-target-block {
  margin-top: 16px;
  padding: 24px;
  background:
    linear-gradient(145deg, rgba(220, 223, 235, 0.7), transparent 70%),
    #f7f8fa;
  border: 1px solid #dcdee7;
  border-left: 4px solid var(--gold);
  border-radius: 10px 10px 10px 3px;
}

.practice-block-label {
  display: block;
  color: #6c6f7b;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.practice-target {
  margin: 10px 0 0;
  color: var(--forest-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
}

.practice-translation {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.practice-controls {
  margin-top: 16px;
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 8px;
}

.practice-rate-field,
.practice-field {
  display: grid;
  gap: 6px;
}

.practice-rate-field {
  min-width: 138px;
}

.practice-rate-field span,
.practice-field span {
  color: #535766;
  font-size: 11px;
  font-weight: 800;
}

.practice-rate-field select,
.practice-field select,
.practice-field input {
  width: 100%;
  min-height: 42px;
  padding: 0 11px;
  color: var(--ink);
  background: #f8f8fa;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: 0;
}

.practice-rate-field select:focus,
.practice-field select:focus,
.practice-field input:focus {
  border-color: #5a6696;
  box-shadow: 0 0 0 4px rgba(90, 102, 150, 0.13);
}

.practice-voice-status {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.practice-transcript-block {
  margin-top: 16px;
  padding: 16px;
  background: #f8f8fa;
  border: 1px solid var(--line);
  border-radius: 11px;
}

.practice-transcript-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: #535766;
  font-size: 11px;
  font-weight: 800;
}

.practice-transcript-head span:last-child {
  color: #818490;
  font-weight: 700;
}

.practice-transcript {
  min-height: 48px;
  margin: 10px 0 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
  line-height: 1.55;
}

.practice-transcript.is-placeholder {
  color: #989aa4;
  font-family:
    "Segoe UI",
    "PingFang SC",
    "Microsoft YaHei",
    sans-serif;
  font-size: 13px;
}

.practice-notice {
  margin-top: 14px;
  padding: 11px 13px;
  color: #313a5e;
  background: #e8eaf4;
  border: 1px solid #ccd0e1;
  border-radius: 9px;
  font-size: 12px;
  line-height: 1.55;
}

.practice-notice.is-error {
  color: #8b3e30;
  background: #fdf0ec;
  border-color: #efc8bd;
}

.practice-result {
  margin-top: 16px;
  padding: 18px;
  background: #ffffff;
  border: 1px solid #cfd2e0;
  border-top: 3px solid #757fa8;
  border-radius: 12px;
  box-shadow: 0 10px 26px rgba(15, 21, 43, 0.06);
}

.practice-result-head {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--line);
}

.practice-score {
  flex: 0 0 auto;
  display: grid;
  gap: 2px;
}

.practice-score strong {
  color: #2d3c76;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 32px;
  line-height: 1;
}

.practice-score span {
  color: #818490;
  font-size: 10px;
  font-weight: 800;
}

.practice-feedback {
  margin: 0;
  color: #404456;
  font-size: 13px;
  line-height: 1.65;
}

.practice-comparison {
  padding-top: 15px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.practice-diff,
.practice-extra-words {
  margin: 8px 0 0;
  color: #535766;
  font-size: 14px;
  line-height: 1.9;
}

.practice-diff .practice-token,
.practice-extra-words .practice-token {
  display: inline-block;
  margin: 2px 2px 2px 0;
  padding: 1px 5px;
  border-radius: 5px;
}

.practice-token.is-matched {
  color: #24305f;
  background: #dce0ef;
}

.practice-token.is-missing {
  color: #9a4636;
  background: #fde9e3;
  text-decoration: line-through;
}

.practice-token.is-extra {
  color: #765813;
  background: #fbf1cc;
}

.practice-extra-words.is-empty {
  color: #8b8e98;
}

.practice-result-actions,
.practice-navigation {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.practice-result-actions {
  margin-top: 16px;
  justify-content: flex-end;
}

.practice-navigation {
  margin-top: 17px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.practice-stage-view[hidden],
.dialogue-result[hidden] {
  display: none;
}

.dialogue-stage {
  min-width: 0;
}

.dialogue-scenario-picker {
  min-width: 0;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.dialogue-scenario-head,
.dialogue-conversation-head {
  min-width: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.dialogue-scenario-head h3 {
  margin: 5px 0 0;
  color: var(--forest-deep);
  font-size: 16px;
  line-height: 1.4;
}

.dialogue-scenario-meta,
.dialogue-turn-counter {
  flex: 0 0 auto;
  padding: 5px 9px;
  color: #454c68;
  background: #edeef4;
  border: 1px solid #d8dae4;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
}

.dialogue-scenario-list {
  min-width: 0;
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.dialogue-scenario-button {
  min-width: 0;
  min-height: 94px;
  padding: 12px;
  display: grid;
  align-content: start;
  gap: 5px;
  color: #404456;
  text-align: left;
  background: #f8f8fa;
  border: 1px solid #dfe1e9;
  border-radius: 10px;
}

.dialogue-scenario-button:hover {
  border-color: #9da3bd;
  background: #f3f4f8;
}

.dialogue-scenario-button.is-active {
  color: #242d4f;
  background:
    linear-gradient(135deg, rgba(213, 170, 79, 0.11), transparent 70%),
    #e8eaf4;
  border-color: #747fa9;
  box-shadow:
    inset 3px 0 0 var(--gold),
    0 8px 18px rgba(15, 24, 60, 0.08);
}

.dialogue-scenario-button-meta {
  color: #7d808c;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.dialogue-scenario-button strong {
  min-width: 0;
  overflow-wrap: anywhere;
  font-size: 13px;
}

.dialogue-scenario-button-summary {
  min-width: 0;
  color: #717480;
  font-size: 10px;
  line-height: 1.45;
}

.dialogue-conversation {
  min-width: 0;
  margin-top: 18px;
}

.dialogue-conversation-head strong {
  min-width: 0;
  margin-top: 4px;
  display: block;
  overflow-wrap: anywhere;
  color: var(--forest-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
}

.dialogue-messages {
  min-width: 0;
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.dialogue-message {
  min-width: 0;
  max-width: 86%;
  padding: 12px 14px;
  border: 1px solid #dcdee7;
  border-radius: 12px;
}

.dialogue-message.is-partner {
  margin-right: auto;
  background: #f2f3f8;
  border-left: 3px solid var(--gold);
  border-bottom-left-radius: 4px;
}

.dialogue-message.is-user {
  margin-left: auto;
  background: #fff7f3;
  border-color: #efd9d0;
  border-right: 3px solid var(--coral);
  border-bottom-right-radius: 4px;
}

.dialogue-message-meta {
  display: block;
  color: #787B89;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.dialogue-message-en,
.dialogue-message-zh {
  min-width: 0;
  overflow-wrap: anywhere;
}

.dialogue-message-en {
  margin: 6px 0 0;
  color: #242d4f;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
}

.dialogue-message-zh {
  margin: 4px 0 0;
  color: #6f727f;
  font-size: 11px;
  line-height: 1.55;
}

.dialogue-reply-block {
  margin-top: 17px;
  padding-top: 16px;
  display: grid;
  gap: 9px;
  border-top: 1px solid var(--line);
}

.dialogue-reply-block > label {
  color: #535766;
  font-size: 11px;
  font-weight: 800;
}

#dialogueAnswerInput {
  width: 100%;
  min-height: 92px;
  padding: 12px 13px;
  color: var(--ink);
  background: #f8f8fa;
  border: 1px solid var(--line);
  border-radius: 9px;
  outline: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16px;
  line-height: 1.55;
  resize: vertical;
}

#dialogueAnswerInput:focus {
  border-color: #5a6696;
  box-shadow: 0 0 0 4px rgba(90, 102, 150, 0.13);
}

.dialogue-reply-actions {
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.dialogue-reply-actions > button {
  flex: 1 1 128px;
}

.dialogue-hint {
  margin-top: 13px;
  padding: 13px 14px;
  background: #fffaf0;
  border: 1px solid #ebdfbd;
  border-left: 3px solid #d4ad51;
  border-radius: 9px;
}

.dialogue-hint-sample {
  margin: 7px 0 0;
  color: #54451f;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
}

.dialogue-hint-translation {
  margin: 4px 0 0;
  color: #7a6b45;
  font-size: 11px;
  line-height: 1.55;
}

.dialogue-result {
  margin-top: 16px;
  padding: 17px;
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 16px;
  background: #f7f8fa;
  border: 1px solid #cfd2e0;
  border-top: 3px solid #757fa8;
  border-radius: 12px;
}

.dialogue-result-score {
  display: grid;
  align-content: start;
  gap: 4px;
}

.dialogue-result-score strong {
  color: #2d3c76;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 31px;
  line-height: 1;
}

.dialogue-result-score span {
  color: #818490;
  font-size: 10px;
  font-weight: 800;
}

.dialogue-result-copy {
  min-width: 0;
}

.dialogue-result-copy > p {
  margin: 0;
  color: #404456;
  font-size: 12px;
  line-height: 1.6;
}

.dialogue-key-points {
  min-width: 0;
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.dialogue-key-point {
  min-width: 0;
  padding: 4px 8px;
  overflow-wrap: anywhere;
  color: #8b3e30;
  background: #fdf0ec;
  border: 1px solid #efc8bd;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
}

.dialogue-key-point.is-covered {
  color: #24305f;
  background: #dce0ef;
  border-color: #c2c8df;
}

.dialogue-coach {
  margin-top: 13px;
  padding: 12px 0 0 12px;
  border-top: 1px solid #d9dce7;
  border-left: 3px solid var(--blue);
}

.dialogue-coach-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.dialogue-coach-level {
  padding: 3px 7px;
  color: #3b456b;
  background: #e2e5f0;
  border-radius: 999px;
  font-size: 9px;
  font-weight: 800;
}

.dialogue-coach-message {
  margin: 8px 0 0;
  color: #404456;
  font-size: 12px;
  line-height: 1.65;
}

.dialogue-coach-tips {
  margin: 7px 0 0;
  padding-left: 17px;
  display: grid;
  gap: 4px;
  color: #535766;
  font-size: 11px;
  line-height: 1.55;
}

.dialogue-coach-task {
  margin: 10px 0 0;
  padding: 8px 10px;
  color: #313a5e;
  background: #e8eaf4;
  border: 1px solid #ccd0e1;
  border-radius: 8px;
  font-size: 11px;
  line-height: 1.55;
}

.dialogue-coach-task span {
  margin-right: 6px;
  color: #6f7383;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.dialogue-coach-task strong {
  font-weight: 700;
}

.dialogue-result-copy .dialogue-sample-label {
  margin-top: 12px;
  color: #7c7f8a;
  font-size: 10px;
  font-weight: 800;
}

.dialogue-sample-answer {
  margin-top: 5px !important;
  color: #242d4f !important;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px !important;
  font-weight: 700;
}

.dialogue-result-actions {
  grid-column: 1 / -1;
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px;
}

/* 情景筛选（全部 / 基础情景 / 真实生活） */
.dialogue-scenario-filters {
  min-width: 0;
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.dialogue-scenario-filter {
  min-height: 32px;
  padding: 0 12px;
  color: #5c5f6d;
  background: #ffffff;
  border: 1px solid #dbdde6;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
}

.dialogue-scenario-filter:hover {
  color: #313a5e;
  border-color: #a8aec6;
}

.dialogue-scenario-filter.is-active {
  color: #ffffff;
  background: var(--forest);
  border-color: var(--forest);
}

/* 真实生活场景用暖色描边区分，不抢激活态的金色高亮 */
.dialogue-scenario-button.is-adult:not(.is-active) {
  border-color: #e3d2a8;
}

.dialogue-scenario-button.is-adult:not(.is-active) .dialogue-scenario-button-meta {
  color: #96702a;
}

/* ---------------------------------------------------------------- 雅思口语 */
.ielts-stage {
  min-width: 0;
}

.ielts-head,
.ielts-report-head {
  min-width: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.ielts-head-copy {
  min-width: 0;
}

.ielts-head-copy h3,
.ielts-report-head h3 {
  margin: 5px 0 0;
  color: var(--forest-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.4;
}

.ielts-mode-summary {
  margin: 7px 0 0;
  color: #717480;
  font-size: 11px;
  line-height: 1.55;
}

.ielts-head-side {
  flex: 0 0 auto;
  display: grid;
  justify-items: end;
  gap: 6px;
}

.ielts-timer {
  padding: 6px 12px;
  color: #2f385b;
  background: #edeef4;
  border: 1px solid #d8dae4;
  border-radius: 999px;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
}

.ielts-timer.is-urgent {
  color: #a84f3e;
  background: #fbeae5;
  border-color: #f0c8bd;
}

.ielts-progress {
  color: #7d808c;
  font-size: 10px;
  font-weight: 800;
}

.ielts-toolbar {
  margin-top: 16px;
  padding: 12px;
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 10px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.ielts-card-field {
  flex: 1 1 240px;
  min-width: 0;
  display: grid;
  gap: 5px;
  color: #5f626f;
  font-size: 10px;
  font-weight: 800;
}

.ielts-card-field select {
  width: 100%;
  min-height: 38px;
  padding: 0 10px;
  color: var(--ink);
  background: #ffffff;
  border: 1px solid #d6d9e3;
  border-radius: 8px;
  font-size: 12px;
}

.ielts-toolbar > button {
  flex: 0 0 auto;
}

.ielts-intro {
  margin-top: 16px;
  padding: 14px 15px;
  color: #4a4e5c;
  background: #f7f8fa;
  border: 1px dashed #cfd2dc;
  border-radius: 10px;
  font-size: 12px;
  line-height: 1.65;
}

.ielts-intro p {
  margin: 0;
}

.ielts-prompt-block {
  margin-top: 16px;
  padding: 16px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: 10px;
}

.ielts-prompt {
  margin: 8px 0 0;
  color: var(--forest-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 17px;
  line-height: 1.5;
}

.ielts-prompt-zh {
  margin: 6px 0 0;
  color: #7a7d88;
  font-size: 12px;
  line-height: 1.6;
}

.ielts-bullets {
  margin: 10px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 4px;
  color: #4a4e5c;
  font-size: 12px;
  line-height: 1.6;
}

.ielts-answer-block {
  margin-top: 14px;
  padding: 15px;
  display: grid;
  gap: 10px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.ielts-answer-block > label {
  color: #535766;
  font-size: 11px;
  font-weight: 800;
}

#ieltsAnswerInput {
  width: 100%;
  min-height: 92px;
  padding: 12px 13px;
  color: var(--ink);
  background: #f8f8fa;
  border: 1px solid var(--line);
  border-radius: 9px;
  outline: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16px;
  line-height: 1.55;
  resize: vertical;
}

#ieltsAnswerInput:focus {
  border-color: #5a6696;
  box-shadow: 0 0 0 4px rgba(90, 102, 150, 0.13);
}

.ielts-actions {
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ielts-actions > button {
  flex: 1 1 126px;
}

.ielts-report {
  margin-top: 16px;
  padding: 17px;
  display: grid;
  gap: 14px;
  background: #f7f8fa;
  border: 1px solid #cfd2e0;
  border-top: 3px solid #757fa8;
  border-radius: 10px;
}

.ielts-report-overall {
  flex: 0 0 auto;
  padding: 7px 13px;
  color: #1f2953;
  background: #e4e7f1;
  border: 1px solid #c3c8dd;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
}

.ielts-report-summary {
  margin: 0;
  color: #535766;
  font-size: 12px;
  line-height: 1.65;
}

.ielts-report-parts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.ielts-report-part {
  min-width: 0;
  padding: 11px 12px;
  display: grid;
  gap: 5px;
  background: #ffffff;
  border: 1px solid #dddfe8;
  border-radius: 9px;
}

.ielts-report-part-name {
  color: #7d808c;
  font-size: 10px;
  font-weight: 800;
}

.ielts-report-part strong {
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--forest-deep);
  font-size: 13px;
}

.ielts-report-dimensions {
  display: grid;
  gap: 12px;
}

.ielts-dimension {
  display: grid;
  gap: 6px;
}

.ielts-dimension-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  color: #4a4e5c;
  font-size: 12px;
  font-weight: 800;
}

.ielts-dimension-head strong {
  color: var(--forest-deep);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.ielts-dimension-track {
  height: 7px;
  overflow: hidden;
  background: #e3e5eb;
  border-radius: 999px;
}

.ielts-dimension-track > span {
  display: block;
  height: 100%;
  background: #4f5b8d;
  border-radius: inherit;
}

.ielts-dimension-note {
  margin: 0;
  color: #7a7d88;
  font-size: 11px;
  line-height: 1.6;
}

.ielts-report-note {
  margin: 0;
  padding-top: 12px;
  color: #818490;
  border-top: 1px solid #dfe1e9;
  font-size: 10px;
  line-height: 1.6;
}

.practice-service-settings {
  display: grid;
  gap: 12px;
}

.practice-service-head,
.practice-sidebar-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.practice-service-head h3,
.practice-sidebar-head h3 {
  margin: 4px 0 0;
  font-size: 16px;
  line-height: 1.3;
}

.practice-mode-status {
  flex: 0 0 auto;
  padding: 5px 8px;
  color: #2d396b;
  background: #e2e5f0;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
}

.practice-api-fields {
  padding-top: 12px;
  display: grid;
  gap: 11px;
  border-top: 1px solid var(--line);
}

.practice-api-fields .practice-secondary-button {
  justify-self: start;
}

.practice-api-status,
.practice-api-note {
  margin: 0;
  font-size: 11px;
  line-height: 1.55;
}

.practice-api-status {
  color: #2d396b;
}

.practice-api-status.is-error {
  color: #a84f3e;
}

.practice-api-note {
  color: #818490;
}

.free-stage {
  min-width: 0;
}

.free-conversation-head {
  min-width: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.free-conversation-head h3 {
  margin: 5px 0 0;
  color: var(--forest-deep);
  font-size: 16px;
  line-height: 1.4;
}

.free-mode-summary {
  margin: 6px 0 0;
  color: #717480;
  font-size: 11px;
  line-height: 1.55;
}

.free-turn-counter {
  flex: 0 0 auto;
  padding: 5px 9px;
  color: #454c68;
  background: #edeef4;
  border: 1px solid #d8dae4;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
  white-space: nowrap;
}

.free-topic-bar {
  min-width: 0;
  margin-top: 15px;
  padding: 12px;
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 10px;
  background: #f6f7fa;
  border: 1px solid #dfe1e9;
  border-radius: 10px;
}

.free-topic-field {
  min-width: 0;
  flex: 1 1 190px;
  display: grid;
  gap: 6px;
  color: #535766;
  font-size: 11px;
  font-weight: 800;
}

.free-topic-field select {
  width: 100%;
  min-height: 38px;
  padding: 0 11px;
  color: var(--ink);
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 9px;
  font-size: 13px;
}

.free-topic-field select:focus {
  border-color: #5a6696;
  box-shadow: 0 0 0 4px rgba(90, 102, 150, 0.13);
  outline: 0;
}

.free-auto-speak {
  min-height: 38px;
  padding: 0 11px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #535766;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 9px;
  font-size: 11px;
  font-weight: 800;
}

.free-auto-speak input {
  width: 15px;
  height: 15px;
  accent-color: var(--forest);
}

.free-topic-bar > button {
  flex: 0 0 auto;
}

.free-messages {
  min-width: 0;
  max-height: 430px;
  margin-top: 15px;
  padding: 14px;
  display: grid;
  align-content: start;
  gap: 11px;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: #fbfbfd;
  border: 1px solid #e2e4eb;
  border-radius: 12px;
}

.free-message {
  min-width: 0;
  max-width: 88%;
  padding: 12px 14px;
  border: 1px solid #dcdee7;
  border-radius: 12px;
}

.free-message.is-assistant {
  margin-right: auto;
  background: #f2f3f8;
  border-left: 3px solid var(--gold);
  border-bottom-left-radius: 4px;
}

.free-message.is-user {
  margin-left: auto;
  background: #fff7f3;
  border-color: #efd9d0;
  border-right: 3px solid var(--coral);
  border-bottom-right-radius: 4px;
}

.free-message header {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.free-message-meta {
  min-width: 0;
  color: #787B89;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.free-message-speak {
  flex: 0 0 auto;
  min-height: 26px;
  padding: 0 9px;
  color: #353e60;
  background: #ffffff;
  border: 1px solid #cfd2e0;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
}

.free-message-speak:hover {
  background: #e8eaf4;
}

.free-message-en,
.free-message-zh {
  min-width: 0;
  overflow-wrap: anywhere;
}

.free-message-en {
  margin: 7px 0 0;
  color: #242d4f;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
}

.free-message-zh {
  margin: 5px 0 0;
  color: #6f727f;
  font-size: 11px;
  line-height: 1.6;
}

.free-message.is-loading .free-message-en {
  color: #7b7e8b;
  font-size: 14px;
  font-weight: 400;
}

.free-feedback {
  min-width: 0;
  margin-top: 12px;
  padding-top: 11px;
  display: grid;
  gap: 9px;
  border-top: 1px solid #e6d6cf;
}

.free-feedback-heading {
  color: #8b3e30;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.free-feedback-row {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.free-feedback-row > span {
  color: #8a7268;
  font-size: 10px;
  font-weight: 800;
}

.free-feedback-row > p {
  margin: 0;
  overflow-wrap: anywhere;
  color: #3f4353;
  font-size: 12px;
  line-height: 1.55;
}

.free-feedback-row > ul {
  margin: 0;
  padding-left: 16px;
  display: grid;
  gap: 4px;
}

.free-feedback-row li {
  overflow-wrap: anywhere;
  color: #4d5160;
  font-size: 11px;
  line-height: 1.55;
}

.free-reply-block {
  margin-top: 16px;
  padding-top: 15px;
  display: grid;
  gap: 9px;
  border-top: 1px solid var(--line);
}

.free-reply-block > label {
  color: #535766;
  font-size: 11px;
  font-weight: 800;
}

#freeAnswerInput {
  width: 100%;
  min-height: 92px;
  padding: 12px 13px;
  color: var(--ink);
  background: #f8f8fa;
  border: 1px solid var(--line);
  border-radius: 9px;
  outline: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16px;
  line-height: 1.55;
  resize: vertical;
}

#freeAnswerInput:focus {
  border-color: #5a6696;
  box-shadow: 0 0 0 4px rgba(90, 102, 150, 0.13);
}

.free-reply-actions {
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.free-reply-actions > button {
  flex: 1 1 118px;
}

.free-hint {
  margin-top: 13px;
  padding: 13px 14px;
  background: #fffaf0;
  border: 1px solid #ebdfbd;
  border-left: 3px solid #d4ad51;
  border-radius: 9px;
}

.free-hint ul {
  margin: 7px 0 0;
  padding-left: 16px;
  display: grid;
  gap: 5px;
}

.free-hint li {
  overflow-wrap: anywhere;
  color: #5f5232;
  font-size: 12px;
  line-height: 1.55;
}

.free-service-note {
  margin: 0;
  color: #818490;
  font-size: 11px;
  line-height: 1.55;
}

.practice-text-button {
  min-height: 30px;
  padding: 0 8px;
  color: #8b3e30;
  background: transparent;
  border: 1px solid #e7c8bf;
  border-radius: 7px;
  font-size: 11px;
  font-weight: 800;
}

.practice-text-button:hover {
  background: #fdf0ec;
}

.practice-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.practice-stat-grid div {
  padding: 11px;
  display: grid;
  gap: 4px;
  background: #f6f7fa;
  border: 1px solid #e0e2e9;
  border-radius: 9px;
}

.practice-stat-grid strong {
  color: var(--forest-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 21px;
}

.practice-stat-grid span {
  color: #7c7f8a;
  font-size: 10px;
  font-weight: 800;
}

.practice-history {
  display: grid;
  gap: 7px;
}

.practice-history-empty {
  margin: 0;
  padding: 14px;
  color: #818490;
  background: #fafafc;
  border: 1px dashed var(--line);
  border-radius: 9px;
  font-size: 12px;
  text-align: center;
}

.practice-history-item {
  padding: 10px;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  align-items: center;
  gap: 9px;
  background: #ffffff;
  border: 1px solid #e0e2e9;
  border-radius: 9px;
}

.practice-history-item > strong {
  color: var(--coral-dark);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 14px;
}

.practice-history-item > strong.is-high {
  color: #2d3c76;
}

.practice-history-copy {
  min-width: 0;
  overflow: hidden;
  color: #404456;
  font-size: 11px;
  line-height: 1.45;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.practice-history-item time {
  color: #9396a0;
  font-size: 9px;
  white-space: nowrap;
}

.practice-card-button {
  min-height: 34px;
  padding: 0 12px;
  color: #ffffff;
  background: #2d3c76;
  border: 1px solid #2d3c76;
  border-radius: 9px;
  font-size: 12px;
  font-weight: 800;
}

.practice-card-button:hover {
  background: #24305f;
  border-color: #24305f;
}

@keyframes panel-rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.primary-button:focus-visible,
.logout-button:focus-visible,
.resource-button:focus-visible,
.view-button:focus-visible,
.speak-button:focus-visible,
.favorite-button:focus-visible,
.unknown-button:focus-visible,
.known-button:focus-visible,
.meaning-control-button:focus-visible,
.meaning-reveal-button:focus-visible,
.collection-filter-button:focus-visible,
.anki-export-launch-button:focus-visible,
.anki-export-close-button:focus-visible,
.practice-launch-button:focus-visible,
.practice-secondary-button:focus-visible,
.practice-primary-button:focus-visible,
.practice-record-button:focus-visible,
.practice-stop-button:focus-visible,
.practice-text-button:focus-visible,
.practice-card-button:focus-visible,
.practice-rate-field select:focus-visible,
.practice-field select:focus-visible,
.practice-field input:focus-visible,
.free-topic-field select:focus-visible,
.free-auto-speak input:focus-visible,
.free-message-speak:focus-visible,
.practice-section-tab:focus-visible,
.dialogue-scenario-button:focus-visible,
#dialogueAnswerInput:focus-visible,
#freeAnswerInput:focus-visible {
  outline: 3px solid rgba(90, 102, 150, 0.32);
  outline-offset: 2px;
}

@media (max-width: 1180px) {
  .practice-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .practice-sidebar {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .practice-service-settings {
    grid-row: span 3;
  }
}

@media (max-width: 1040px) {
  .app-view {
    grid-template-columns: 238px minmax(0, 1fr);
  }

  .library-panel {
    padding-inline: 13px;
  }

  .resource-button {
    grid-template-columns: 34px minmax(0, 1fr);
  }

  .resource-count {
    display: none;
  }

  .card-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .practice-sidebar {
    grid-template-columns: minmax(0, 1fr);
  }

  .practice-service-settings {
    grid-row: auto;
  }

  .dialogue-scenario-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .login-shell {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }

  .login-brand {
    margin-bottom: 34px;
  }

  .login-story h1 {
    font-size: clamp(34px, 11vw, 48px);
  }

  .login-panel {
    padding: 28px 22px;
  }

  .app-view {
    display: block;
  }

  .library-panel {
    position: relative;
    top: auto;
    align-self: auto;
    height: auto;
    min-height: 0;
    padding: 18px;
    overflow: visible;
    overscroll-behavior-y: auto;
    scrollbar-gutter: auto;
  }

  .library-brand {
    align-items: center;
  }

  .account-row {
    margin-top: 16px;
  }

  .library-heading {
    margin-top: 24px;
  }

  .library-toggle-button {
    display: flex;
  }

  .material-search-field {
    display: none;
  }

  .library-panel.is-mobile-expanded .material-search-field {
    display: flex;
  }

  .resource-list {
    margin-inline: 0;
    max-height: min(58vh, 520px);
    padding: 2px 4px 10px 0;
    display: grid;
    gap: 14px;
    overflow-y: auto;
    overscroll-behavior-y: contain;
    scrollbar-gutter: stable;
  }

  .resource-button {
    width: 100%;
    flex: 0 0 auto;
    grid-template-columns: 34px minmax(0, 1fr);
    background: rgba(255, 255, 255, 0.055);
  }

  .workspace {
    padding: 24px 16px 28px;
    scroll-margin-top: 12px;
  }

  .back-to-library-button {
    display: inline-flex;
  }

  .workspace-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 20px;
  }

  .progress-panel {
    width: 100%;
  }

  .progress-ring {
    width: 60px;
    height: 60px;
  }

  .progress-ring::before {
    width: 47px;
    height: 47px;
  }

  .toolbar-search-row {
    flex-wrap: wrap;
  }

  .toolbar-view-row {
    align-items: stretch;
    flex-direction: column;
  }

  .toolbar-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .anki-export-launch-button,
  .practice-launch-button {
    width: 100%;
  }

  .anki-export-fields {
    grid-template-columns: minmax(0, 1fr);
  }

  .anki-export-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .anki-export-footer .practice-primary-button {
    width: 100%;
  }

  .search-field {
    flex-basis: 100%;
  }

  .result-count {
    width: 100%;
    padding: 0 4px;
    text-align: right;
  }

  .view-switcher {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .meaning-controls {
    align-items: flex-start;
    flex-direction: column;
  }

  .meaning-control-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .practice-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 20px;
  }

  .practice-header h2 {
    font-size: 30px;
  }

  .practice-header .practice-secondary-button {
    width: 100%;
  }

  .practice-section-switch {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(92px, 1fr));
  }

  .practice-section-tab {
    width: 100%;
    padding-inline: 10px;
  }

  .practice-stage {
    padding: 16px;
  }

  .ielts-head,
  .ielts-report-head,
  .ielts-dimension-head {
    align-items: flex-start;
  }

  .ielts-head,
  .ielts-report-head {
    flex-direction: column;
  }

  .ielts-head-side {
    width: 100%;
    justify-items: start;
  }

  .ielts-toolbar > button,
  .ielts-actions > button {
    width: 100%;
    flex: 1 1 100%;
  }

  .ielts-report-parts {
    grid-template-columns: minmax(0, 1fr);
  }

  .practice-target-block {
    padding: 19px;
  }

  .practice-target {
    font-size: 27px;
  }

  .practice-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .practice-rate-field {
    min-width: 0;
    grid-column: 1 / -1;
  }

  .practice-controls > button {
    width: 100%;
  }

  .practice-comparison {
    grid-template-columns: minmax(0, 1fr);
  }

  .practice-result-head {
    align-items: flex-start;
  }

  .dialogue-reply-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dialogue-reply-actions > button {
    width: 100%;
  }

  .dialogue-message {
    max-width: 94%;
  }

  .free-topic-field {
    flex-basis: 100%;
  }

  .free-topic-bar > button {
    flex: 1 1 100%;
  }

  .free-message {
    max-width: 94%;
  }

  .free-reply-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .free-reply-actions > button {
    width: 100%;
  }

  .view-button {
    min-width: 0;
    padding-inline: 7px;
    justify-content: center;
  }

  .workspace-footer {
    flex-wrap: wrap;
  }
}

@media (max-width: 430px) {
  .login-view {
    place-items: start center;
    padding-top: 24px;
  }

  .login-features {
    display: none;
  }

  .workspace-title h1 {
    font-size: 32px;
  }

  .card-head {
    gap: 10px;
  }

  .vocab-card {
    padding: 17px;
  }

  .practice-controls {
    grid-template-columns: minmax(0, 1fr);
  }

  .practice-rate-field {
    grid-column: auto;
  }

  .practice-result-actions,
  .practice-navigation {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .practice-result-actions > button,
  .practice-navigation > button {
    width: 100%;
  }

  .dialogue-scenario-head,
  .dialogue-conversation-head,
  .free-conversation-head {
    flex-direction: column;
  }

  .dialogue-scenario-list,
  .dialogue-reply-actions,
  .dialogue-result {
    grid-template-columns: minmax(0, 1fr);
  }

  .dialogue-result-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .dialogue-result-actions > button {
    width: 100%;
  }

  .dialogue-message {
    max-width: 100%;
  }

  .free-message {
    max-width: 100%;
  }

  .free-messages {
    max-height: 360px;
    padding: 12px;
  }

  .free-reply-actions {
    grid-template-columns: minmax(0, 1fr);
  }

  .practice-history-item {
    grid-template-columns: 42px minmax(0, 1fr);
  }

  .practice-history-item time {
    grid-column: 2;
  }

  .workspace-footer {
    flex-direction: column;
    gap: 5px;
  }

  .workspace-footer span:last-child {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .login-panel {
    animation: none;
  }

  .primary-button,
  .resource-button,
  .vocab-card {
    transition: none;
  }
}

.resource-button.is-attachment {
  border-style: dashed;
  background: #f7f8fa;
}

.resource-button.is-attachment:hover {
  border-color: #7d85a6;
  background: #edeff5;
}

.resource-button.is-attachment .resource-count {
  color: #2d3a6f;
  background: #e5e7f1;
}

.resource-button.is-intensive-entry {
  color: #ffffff;
  background: linear-gradient(
    135deg,
    rgba(209, 165, 72, 0.2),
    rgba(255, 255, 255, 0.055)
  );
  border-color: rgba(225, 193, 108, 0.34);
  text-decoration: none;
}

.resource-button.is-intensive-entry:hover {
  background: linear-gradient(
    135deg,
    rgba(209, 165, 72, 0.28),
    rgba(255, 255, 255, 0.08)
  );
  border-color: rgba(232, 205, 132, 0.52);
}

.resource-button.is-intensive-entry .resource-index {
  background: #e1c16c;
}

.resource-button.is-intensive-entry .resource-count {
  color: #6a4d0b;
  background: #f0dfaa;
}

.resource-button.is-reading-entry {
  color: #ffffff;
  background: linear-gradient(
    135deg,
    rgba(86, 156, 214, 0.22),
    rgba(255, 255, 255, 0.055)
  );
  border-color: rgba(120, 178, 224, 0.36);
  text-decoration: none;
}

.resource-button.is-reading-entry:hover {
  background: linear-gradient(
    135deg,
    rgba(86, 156, 214, 0.3),
    rgba(255, 255, 255, 0.08)
  );
  border-color: rgba(146, 196, 234, 0.54);
}

.resource-button.is-reading-entry .resource-index {
  background: #8ec2e6;
  color: #123049;
}

.resource-button.is-reading-entry .resource-count {
  color: #17405f;
  background: #cfe6f6;
}

.resource-button.is-reading-intensive-entry {
  color: #ffffff;
  background: linear-gradient(
    135deg,
    rgba(58, 82, 178, 0.24),
    rgba(255, 255, 255, 0.055)
  );
  border-color: rgba(94, 115, 201, 0.38);
  text-decoration: none;
}

.resource-button.is-reading-intensive-entry:hover {
  background: linear-gradient(
    135deg,
    rgba(58, 82, 178, 0.32),
    rgba(255, 255, 255, 0.08)
  );
  border-color: rgba(122, 141, 216, 0.56);
}

.resource-button.is-reading-intensive-entry .resource-index {
  background: #7f91d8;
  color: #0b1331;
}

.resource-button.is-reading-intensive-entry .resource-count {
  color: #0d173d;
  background: #c8d0f0;
}

.resource-button.is-cet6-entry {
  color: #ffffff;
  background: linear-gradient(
    135deg,
    rgba(59, 110, 199, 0.26),
    rgba(255, 255, 255, 0.055)
  );
  border-color: rgba(122, 166, 232, 0.4);
  text-decoration: none;
}

.resource-button.is-cet6-entry:hover {
  background: linear-gradient(
    135deg,
    rgba(59, 110, 199, 0.34),
    rgba(255, 255, 255, 0.08)
  );
  border-color: rgba(150, 190, 244, 0.58);
}

.resource-button.is-cet6-entry .resource-index {
  background: #7ea8e8;
  color: #112b52;
}

.resource-button.is-cet6-entry .resource-count {
  color: #16386b;
  background: #d3e4fb;
}

.resource-button.is-cet6-extra-entry {
  color: #ffffff;
  background: linear-gradient(
    135deg,
    rgba(214, 138, 74, 0.24),
    rgba(255, 255, 255, 0.055)
  );
  border-color: rgba(232, 168, 112, 0.4);
  text-decoration: none;
}

.resource-button.is-cet6-extra-entry:hover {
  background: linear-gradient(
    135deg,
    rgba(214, 138, 74, 0.32),
    rgba(255, 255, 255, 0.08)
  );
  border-color: rgba(240, 190, 142, 0.58);
}

.resource-button.is-cet6-extra-entry .resource-index {
  background: #e8b078;
  color: #4a2a0d;
}

.resource-button.is-cet6-extra-entry .resource-count {
  color: #6b3b12;
  background: #f7dfc2;
}

.resource-button.is-periodical-entry {
  color: #ffffff;
  background: linear-gradient(
    135deg,
    rgba(46, 66, 148, 0.26),
    rgba(255, 255, 255, 0.055)
  );
  border-color: rgba(110, 128, 200, 0.42);
  text-decoration: none;
}

.resource-button.is-periodical-entry:hover {
  background: linear-gradient(
    135deg,
    rgba(46, 66, 148, 0.34),
    rgba(255, 255, 255, 0.08)
  );
  border-color: rgba(146, 161, 222, 0.6);
}

.resource-button.is-periodical-entry .resource-index {
  background: #8696d4;
  color: #0d1537;
}

.resource-button.is-periodical-entry .resource-count {
  color: #101b45;
  background: #cdd4ee;
}

.resource-button.is-vocab-entry {
  color: #ffffff;
  background: linear-gradient(
    135deg,
    rgba(132, 105, 46, 0.26),
    rgba(255, 255, 255, 0.055)
  );
  border-color: rgba(204, 176, 116, 0.42);
  text-decoration: none;
}

.resource-button.is-vocab-entry:hover {
  background: linear-gradient(
    135deg,
    rgba(132, 105, 46, 0.34),
    rgba(255, 255, 255, 0.08)
  );
  border-color: rgba(222, 199, 150, 0.6);
}

.resource-button.is-vocab-entry .resource-index {
  background: #d4b87c;
  color: #3a2c0d;
}

.resource-button.is-vocab-entry .resource-count {
  color: #45340f;
  background: #f1e3c6;
}

.resource-button.is-writing-entry {
  color: #ffffff;
  background: linear-gradient(
    135deg,
    rgba(176, 75, 148, 0.24),
    rgba(255, 255, 255, 0.055)
  );
  border-color: rgba(226, 138, 200, 0.4);
  text-decoration: none;
}

.resource-button.is-writing-entry:hover {
  background: linear-gradient(
    135deg,
    rgba(176, 75, 148, 0.32),
    rgba(255, 255, 255, 0.08)
  );
  border-color: rgba(236, 168, 216, 0.58);
}

.resource-button.is-writing-entry .resource-index {
  background: #ec9ad4;
  color: #4d123c;
}

.resource-button.is-writing-entry .resource-count {
  color: #5d1848;
  background: #fadcf1;
}

.resource-button.is-listen-entry {
  color: #ffffff;
  background: linear-gradient(
    135deg,
    rgba(44, 128, 176, 0.26),
    rgba(255, 255, 255, 0.055)
  );
  border-color: rgba(120, 186, 226, 0.42);
  text-decoration: none;
}

.resource-button.is-listen-entry:hover {
  background: linear-gradient(
    135deg,
    rgba(44, 128, 176, 0.34),
    rgba(255, 255, 255, 0.08)
  );
  border-color: rgba(154, 210, 244, 0.6);
}

.resource-button.is-listen-entry .resource-index {
  background: #9fd6f2;
  color: #0c3450;
}

.resource-button.is-listen-entry .resource-count {
  color: #12405f;
  background: #d8eefa;
}

.resource-button.is-shadow-entry {
  color: #ffffff;
  background: linear-gradient(
    135deg,
    rgba(205, 116, 52, 0.24),
    rgba(255, 255, 255, 0.055)
  );
  border-color: rgba(234, 164, 110, 0.42);
  text-decoration: none;
}

.resource-button.is-shadow-entry:hover {
  background: linear-gradient(
    135deg,
    rgba(205, 116, 52, 0.32),
    rgba(255, 255, 255, 0.08)
  );
  border-color: rgba(242, 190, 148, 0.6);
}

.resource-button.is-shadow-entry .resource-index {
  background: #f0b077;
  color: #54290a;
}

.resource-button.is-shadow-entry .resource-count {
  color: #63300c;
  background: #fbe3cc;
}

/* Welcome curtain */

.welcome-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  padding: 28px;
  display: grid;
  place-items: center;
  color: #ffffff;
  text-align: center;
  background:
    radial-gradient(
      circle at 50% 40%,
      rgba(29, 38, 74, 0.96),
      rgba(8, 13, 35, 0.985) 64%
    ),
    var(--forest-deep);
  opacity: 0;
  animation: welcome-in 1500ms ease-out 180ms forwards;
}

.welcome-overlay.is-leaving {
  animation: welcome-out 900ms ease-in forwards;
}

.welcome-overlay[hidden] {
  display: none;
}

.welcome-inner {
  max-width: 640px;
  display: grid;
  gap: 14px;
  justify-items: center;
}

.welcome-eyebrow {
  color: #e1c16c;
  font-size: 11px;
  font-weight: 800;
}

.welcome-title {
  position: relative;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(30px, 6.4vw, 54px);
  line-height: 1.16;
}

.welcome-title::after {
  content: "";
  display: block;
  width: 72px;
  height: 3px;
  margin: 18px auto 0;
  background: linear-gradient(
    90deg,
    var(--coral),
    var(--gold) 52%,
    #838eb9
  );
}

.welcome-sub {
  color: #a9aec3;
  font-size: 13px;
  line-height: 1.7;
}

@keyframes welcome-in {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes welcome-out {
  from {
    opacity: 1;
  }

  to {
    opacity: 0;
  }
}

/* Realtime voice bar */

.practice-realtime-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  background: #f2f3f7;
  border: 1px solid #d7dae5;
  border-radius: 9px;
}

.practice-realtime-button {
  min-height: 36px;
  flex: 0 0 auto;
  padding: 0 13px;
  color: #ffffff;
  background: #2d3c76;
  border: 1px solid #2d3c76;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 800;
}

.practice-realtime-button:hover {
  background: #24305f;
  border-color: #24305f;
}

.practice-realtime-button.is-active {
  background: var(--coral);
  border-color: var(--coral);
}

.practice-realtime-button.is-active:hover {
  background: var(--coral-dark);
  border-color: var(--coral-dark);
}

.practice-realtime-button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.practice-realtime-status {
  min-width: 0;
  flex: 1 1 auto;
  color: #555b73;
  font-size: 12px;
  line-height: 1.5;
}

.practice-realtime-button.is-active + .practice-realtime-status::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-right: 7px;
  display: inline-block;
  vertical-align: 1px;
  background: currentColor;
  border-radius: 50%;
  animation: realtime-pulse 1.15s ease-in-out infinite;
}

.practice-realtime-status[data-phase="listening"] {
  color: #2d3c76;
  font-weight: 700;
}

.practice-realtime-status[data-phase="thinking"] {
  color: #977520;
}

.practice-realtime-status[data-phase="speaking"] {
  color: var(--blue);
}

.practice-realtime-status.is-error {
  color: #a43f3b;
}

@keyframes realtime-pulse {
  0%,
  100% {
    opacity: 0.35;
    transform: scale(0.8);
  }

  50% {
    opacity: 1;
    transform: scale(1.15);
  }
}

/* Online spaced repetition review */

.review-launch-button {
  min-height: 38px;
  padding: 0 13px;
  color: #ffffff;
  background: var(--forest);
  border: 1px solid var(--forest);
  border-radius: 9px;
  font-size: 12px;
  font-weight: 800;
}

.review-launch-button:hover {
  background: var(--forest-deep);
  border-color: var(--forest-deep);
}

.review-studio {
  margin: 24px 0 20px;
  display: grid;
  gap: 14px;
}

.review-header {
  position: relative;
  overflow: hidden;
  padding: 24px 26px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  color: #ffffff;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.045), transparent 58%),
    repeating-linear-gradient(
      90deg,
      transparent 0 31px,
      rgba(255, 255, 255, 0.025) 31px 32px
    ),
    var(--forest-deep);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px 14px 6px 6px;
  box-shadow: 0 16px 34px rgba(8, 13, 34, 0.13);
}

.review-header::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: linear-gradient(
    180deg,
    var(--gold),
    var(--coral) 55%,
    #838eb9
  );
}

.review-header > * {
  position: relative;
}

.review-header .section-label {
  color: #e1c16c;
}

.review-header h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 34px;
  line-height: 1.1;
}

.review-header .practice-secondary-button {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.22);
}

.review-header .practice-secondary-button:hover {
  background: rgba(255, 255, 255, 0.13);
}

.review-source {
  margin: 9px 0 0;
  color: #a9aec3;
  font-size: 12px;
  line-height: 1.55;
}

.review-controls {
  padding: 14px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 10px;
  background: #f7f8fa;
  border: 1px solid #d5d8e3;
  border-radius: 10px;
}

.review-control-actions {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.review-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.review-stat-grid > div {
  min-width: 0;
  padding: 12px 14px;
  display: grid;
  gap: 2px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.review-stat-grid strong {
  color: var(--forest);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 26px;
  line-height: 1.15;
}

.review-stat-grid span {
  color: #6b6e7c;
  font-size: 11px;
}

.review-card {
  padding: 26px;
  display: grid;
  gap: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px 12px 12px 4px;
  box-shadow: 0 10px 26px rgba(15, 21, 43, 0.05);
}

.review-card-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  color: #7d808b;
  font-size: 11px;
}

.review-card-front {
  display: grid;
  gap: 10px;
}

.review-card-sentence {
  margin: 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(20px, 2.5vw, 30px);
  line-height: 1.45;
}

.review-card-prompt {
  margin: 0;
  min-height: 17px;
  color: #8b8e98;
  font-size: 12px;
}

.review-card-answer {
  padding: 15px 16px;
  display: grid;
  gap: 9px;
  background: #f4f5f8;
  border: 1px solid #dbdee8;
  border-radius: 10px;
}

.review-answer-row {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 9px;
}

.review-answer-row strong {
  color: var(--forest);
  font-size: 19px;
}

.review-answer-phonetic {
  color: #7a7d8b;
  font-size: 12px;
}

.review-answer-meaning {
  margin: 0;
  color: #2f344a;
  font-size: 14px;
  line-height: 1.6;
}

.review-answer-translation {
  margin: 0;
  color: #5d606e;
  font-size: 13px;
  line-height: 1.6;
}

.review-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.review-mark-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.review-mark-button {
  flex: 1 1 140px;
  min-height: 44px;
  padding: 0 16px;
  color: #4f5361;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 9px;
  font-size: 13px;
  font-weight: 700;
}

.review-mark-button:hover {
  border-color: #b6bac9;
}

.review-mark-button.is-unknown.is-active {
  color: var(--coral-dark);
  background: rgba(207, 81, 76, 0.09);
  border-color: rgba(207, 81, 76, 0.42);
}

.review-mark-button.is-known.is-active {
  color: var(--forest);
  background: rgba(21, 29, 60, 0.08);
  border-color: rgba(21, 29, 60, 0.34);
}

.review-grade-actions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.review-grade-button {
  min-height: 58px;
  padding: 9px 10px;
  display: grid;
  gap: 4px;
  justify-items: center;
  color: #4f5361;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 12px;
  font-weight: 800;
}

.review-grade-button strong {
  font-size: 13px;
}

.review-grade-button span {
  color: #858893;
  font-size: 10px;
  font-weight: 600;
}

.review-grade-button.is-again {
  color: #8b3e30;
  background: #fdf3f0;
  border-color: #e3b7aa;
}

.review-grade-button.is-hard {
  color: #7c6420;
  background: #fdf9ec;
  border-color: #e4d6a8;
}

.review-grade-button.is-good {
  color: #24305f;
  background: #f1f2f8;
  border-color: #bcc2d8;
}

.review-grade-button.is-easy {
  color: #2f5872;
  background: #f0f6fa;
  border-color: #bcd0dd;
}

.review-grade-button:hover {
  border-color: #9da3bd;
}

.review-status {
  min-height: 18px;
  margin: 0;
  color: #475073;
  font-size: 12px;
  line-height: 1.55;
}

.review-status.is-error {
  color: #a43f3b;
}

.review-footnote {
  margin: 0;
  color: #8b8e98;
  font-size: 11px;
  line-height: 1.6;
}

.review-launch-button:focus-visible,
.practice-realtime-button:focus-visible,
.review-grade-button:focus-visible {
  outline: 3px solid rgba(90, 102, 150, 0.32);
  outline-offset: 2px;
}

@media (max-width: 1040px) {
  .review-controls {
    grid-template-columns: minmax(0, 1fr);
  }

  .review-stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .practice-realtime-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .review-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .review-card {
    padding: 18px;
  }

  .review-grade-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .review-card-actions .practice-secondary-button,
  .review-card-actions .practice-primary-button {
    flex: 1 1 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .welcome-overlay {
    animation: none;
    opacity: 1;
  }

  .welcome-overlay.is-leaving {
    animation: welcome-out 150ms ease-in forwards;
  }

  .practice-realtime-button.is-active + .practice-realtime-status::before {
    animation: none;
  }
}

/* -------------------------------------------------- 词汇库内嵌视图（iframe） */

.workspace.is-vocab-embedded {
  padding-top: 18px;
}

.vocab-embed-view {
  display: grid;
  gap: 14px;
}

.vocab-embed-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-left: 4px solid var(--coral);
  border-radius: 8px;
  box-shadow: var(--paper-shadow);
}

.vocab-embed-copy {
  min-width: 0;
  max-width: 640px;
  display: grid;
  gap: 6px;
}

.vocab-embed-copy .section-label {
  margin: 0;
  font-size: 11px;
  font-weight: 900;
}

.vocab-embed-title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.vocab-embed-title-row h1 {
  margin: 0;
  color: var(--forest-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 28px;
  line-height: 1.15;
}

.vocab-embed-status {
  min-height: 26px;
  padding: 4px 10px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--forest);
  background: var(--forest-soft);
  border: 1px solid rgba(64, 86, 214, 0.24);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.vocab-embed-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue);
}

.vocab-embed-copy p:not(.section-label) {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.vocab-embed-actions {
  flex: 0 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.vocab-embed-open,
.vocab-embed-close {
  min-height: 40px;
  padding: 0 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.vocab-embed-open {
  color: var(--forest-deep);
  background: #ffffff;
  border: 1px solid rgba(21, 29, 60, 0.2);
}

.vocab-embed-open:hover {
  border-color: var(--forest);
  color: var(--forest);
}

.vocab-embed-close {
  color: #ffffff;
  background: var(--coral);
  border: 1px solid var(--coral);
}

.vocab-embed-close:hover {
  background: var(--coral-dark);
  border-color: var(--coral-dark);
}

.vocab-embed-open:focus-visible,
.vocab-embed-close:focus-visible {
  outline: 2px solid var(--forest-deep);
  outline-offset: 2px;
}

.vocab-embed-frame {
  width: 100%;
  height: max(680px, calc(100vh - 210px));
  min-height: 620px;
  display: block;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--paper-shadow);
}

@media (max-width: 760px) {
  .vocab-embed-toolbar {
    align-items: stretch;
    padding: 14px 16px;
  }

  .vocab-embed-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .vocab-embed-title-row h1 {
    font-size: 24px;
  }

  .vocab-embed-frame {
    height: 78vh;
    min-height: 520px;
  }
}