:root {
  color-scheme: light;
  --ink: #162230;
  --muted: #627083;
  --page: #edf2f6;
  --surface: #ffffff;
  --soft: #f7f9fb;
  --line: #d9e2eb;
  --accent: #d7a927;
  --accent-dark: #725514;
  --accent-soft: #fff4cc;
  --mint: #2f766d;
  --mint-soft: #e7f4f1;
  --gold-soft: #fff7df;
  --shadow: 0 18px 48px rgba(22, 34, 48, 0.09);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --ink: #edf3f8;
  --muted: #a9b7c7;
  --page: #111923;
  --surface: #172231;
  --soft: #202d3c;
  --line: #334255;
  --accent: #e0b12f;
  --accent-dark: #ffe08a;
  --accent-soft: rgba(224, 177, 47, 0.18);
  --mint: #77c9bd;
  --mint-soft: rgba(119, 201, 189, 0.16);
  --gold-soft: rgba(224, 177, 47, 0.12);
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 8%, rgba(215, 169, 39, 0.22), transparent 28%),
    radial-gradient(circle at 84% 18%, rgba(47, 118, 109, 0.16), transparent 30%),
    linear-gradient(90deg, rgba(22, 34, 48, 0.035) 1px, transparent 1px),
    linear-gradient(rgba(22, 34, 48, 0.03) 1px, transparent 1px),
    linear-gradient(180deg, #e3ebf0 0, var(--page) 320px),
    var(--page);
  background-size: auto, auto, 34px 34px, 34px 34px, auto;
}

:root[data-theme="dark"] body {
  background:
    radial-gradient(circle at 12% 8%, rgba(224, 177, 47, 0.15), transparent 28%),
    radial-gradient(circle at 84% 18%, rgba(119, 201, 189, 0.12), transparent 30%),
    linear-gradient(90deg, rgba(237, 243, 248, 0.035) 1px, transparent 1px),
    linear-gradient(rgba(237, 243, 248, 0.03) 1px, transparent 1px),
    linear-gradient(180deg, #121d27 0, var(--page) 320px),
    var(--page);
  background-size: auto, auto, 34px 34px, 34px 34px, auto;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 0 14px;
  color: var(--ink);
  background: var(--surface);
  cursor: pointer;
}

button:hover {
  border-color: var(--accent);
}

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

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(49, 92, 122, 0.2);
  outline-offset: 2px;
}

.primary {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
}

.primary:hover {
  background: var(--accent-dark);
}

.app-shell {
  width: min(1360px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0;
}

.hero-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.hero-title-row {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
}

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
}

.auth-pending .login-screen {
  visibility: hidden;
}

.login-card {
  width: min(420px, 100%);
  display: grid;
  gap: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 32px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.login-intro {
  display: grid;
  gap: 7px;
}

.login-intro .eyebrow,
.login-intro h1,
.login-intro p {
  margin: 0;
}

.login-intro h1 {
  font-size: 2rem;
  line-height: 1.15;
  letter-spacing: 0;
}

.login-intro p {
  color: var(--muted);
  line-height: 1.45;
}

.login-card label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 800;
}

.login-card input {
  min-height: 48px;
}

.login-card .primary {
  min-height: 48px;
}

.login-error {
  margin: 0;
  border: 1px solid #efb0b0;
  border-radius: 9px;
  padding: 10px 12px;
  color: #9f2020;
  background: #fff0f0;
  font-weight: 800;
}

.profile-menu {
  position: relative;
}

.profile-button {
  width: 46px;
  height: 46px;
  min-height: 46px;
  display: grid;
  place-items: center;
  border-color: var(--accent);
  border-radius: 50%;
  padding: 0;
  color: #fff;
  background: var(--accent);
  font-weight: 950;
  text-transform: uppercase;
}

.profile-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 70;
  width: 230px;
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.profile-dropdown-head {
  display: grid;
  gap: 3px;
  border-bottom: 1px solid var(--line);
  padding: 6px 6px 12px;
}

.profile-dropdown-head span {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 800;
}

.profile-dropdown button {
  width: 100%;
  text-align: left;
}

.admin-portal {
  display: grid;
  gap: 16px;
}

.admin-toolbar,
.admin-section {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.admin-toolbar,
.admin-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.admin-section {
  display: grid;
  gap: 16px;
}

.admin-section-head > span {
  color: var(--muted);
  font-weight: 850;
}

.admin-user-list {
  display: grid;
  gap: 12px;
}

.admin-user-card {
  display: grid;
  grid-template-columns: minmax(220px, 1.1fr) minmax(180px, 1fr) minmax(180px, 1fr) auto;
  gap: 12px;
  align-items: end;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  background: var(--soft);
}

.admin-user-card > label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 850;
}

.admin-user-identity {
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-user-identity > div {
  display: grid;
  gap: 3px;
}

.admin-user-identity span:not(.admin-user-avatar) {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 800;
}

.admin-user-avatar {
  width: 44px;
  height: 44px;
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--mint);
  font-weight: 950;
}

.admin-active-option {
  grid-template-columns: auto 1fr !important;
  align-items: center;
  min-height: 40px;
}

.admin-app-choice {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 1fr));
  gap: 8px;
}

.admin-app-option {
  display: flex !important;
  align-items: center;
  gap: 8px !important;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 10px;
  color: var(--ink) !important;
  background: var(--surface);
}

.admin-app-choice.is-disabled {
  opacity: 0.6;
  pointer-events: none;
}

.admin-user-actions {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.admin-user-actions .primary {
  min-width: 220px;
}

.blocked-ip-list {
  display: grid;
  gap: 12px;
}

.blocked-ip-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  background: var(--soft);
}

.blocked-ip-card strong,
.blocked-ip-card span {
  display: block;
}

.blocked-ip-meta {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 750;
}

.security-chip {
  min-width: 98px;
  padding: 8px 11px;
  border-radius: 999px;
  text-align: center;
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.security-chip.danger {
  color: #8a1111;
  background: #ffe6e6;
  border: 1px solid #ffb9b9;
}

.security-chip.warn {
  color: #725100;
  background: #fff2bf;
  border: 1px solid #e5bf39;
}

.success-empty {
  color: #0f6b45;
  background: #e9f8f1;
  border-color: #a8dbc3;
}

.admin-delete-user-button {
  border-color: #fecaca;
  color: #dc2626;
  background: #fff;
}

.admin-delete-user-button:hover:not(:disabled) {
  color: #991b1b;
  background: #fee2e2;
}

.create-user-modal {
  width: min(600px, 100%);
}

.create-user-modal .admin-app-choice {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.calculator-shell {
  display: grid;
  gap: 12px;
}

.calculator-hero,
.calculator-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.calculator-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
}

.calculator-hero h2,
.calculator-card h2 {
  margin-top: 4px;
}

.calculator-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.calculator-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(320px, 1.28fr);
  gap: 12px;
}

.calculator-card {
  padding: 16px;
}

.calculator-form {
  display: grid;
  gap: 12px;
}

.calculator-result-card {
  display: grid;
  align-content: center;
  gap: 14px;
  min-height: 230px;
  color: #102033;
  background:
    radial-gradient(circle at top right, rgba(224, 177, 30, 0.22), transparent 34%),
    linear-gradient(135deg, #fff9df, #eff8f7 72%);
}

.calculator-grade-badge {
  width: min(132px, 38vw);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 2px solid #d7a719;
  border-radius: 22px;
  color: #2d2208;
  background: #e0b11e;
  box-shadow: 0 18px 38px rgba(128, 91, 0, 0.18);
  font-size: clamp(2.3rem, 8vw, 4.6rem);
  font-weight: 950;
}

.calculator-progress {
  height: 14px;
  overflow: hidden;
  border: 1px solid #d8c382;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
}

.calculator-progress span {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #dc2626, #e0b11e 48%, #0f9f6e);
  transition: width 180ms ease;
}

.calculator-table-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.calculator-scale-table,
.scale-preview-list {
  display: grid;
  gap: 8px;
}

.scale-row,
.scale-preview-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  background: var(--soft);
}

.scale-preview-row {
  grid-template-columns: 0.7fr 1.3fr;
}

.scale-entry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
}

.scale-entry-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  background: var(--soft);
}

.scale-entry-row strong {
  min-width: 42px;
  font-size: 1.1rem;
}

.scale-entry-head {
  grid-column: 1 / -1;
  color: var(--muted);
  background: var(--accent-soft);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
}

.scale-row-head {
  color: var(--muted);
  background: var(--accent-soft);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
}

.calculator-wizard {
  width: min(760px, 100%);
}

.calculator-wizard-step {
  display: grid;
  gap: 14px;
}

.wizard-stepper {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.wizard-stepper span {
  display: grid;
  place-items: center;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: var(--soft);
  font-weight: 900;
}

.wizard-stepper span.active {
  color: #fff;
  border-color: var(--accent);
  background: var(--accent);
}

.wizard-mode-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.wizard-mode-tabs button.active {
  color: var(--accent-dark);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.hint-text {
  color: var(--muted);
  line-height: 1.5;
}

.header-home-button {
  width: 52px;
  height: 52px;
  min-height: 52px;
  display: inline-grid;
  place-items: center;
  border-color: var(--accent);
  border-radius: 16px;
  color: var(--accent-dark);
  background: rgba(255, 255, 255, 0.82);
  padding: 0;
}

.header-home-button svg {
  width: 29px;
  height: 29px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.25;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.header-home-button:hover {
  color: #fff;
  background: var(--accent);
}

.theme-toggle {
  width: 62px;
  height: 38px;
  min-height: 38px;
  border-color: #efd987;
  color: var(--accent-dark);
  background: rgba(255, 255, 255, 0.76);
  padding: 0;
  font-weight: 800;
}

.theme-toggle-track {
  position: relative;
  width: 48px;
  height: 26px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  margin: 0 auto;
  border-radius: 999px;
  background: #d8e2eb;
  transition: background-color 160ms ease;
}

.theme-toggle-icon {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  color: #6b7280;
  font-size: 0.84rem;
  line-height: 1;
}

.theme-toggle-knob {
  position: absolute;
  left: 4px;
  top: 4px;
  z-index: 1;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 2px 7px rgba(22, 34, 48, 0.2);
  transform: translateX(0);
  transition: transform 160ms ease;
}

.theme-toggle[aria-pressed="true"] .theme-toggle-track {
  background: var(--accent);
}

.theme-toggle[aria-pressed="true"] .theme-toggle-knob {
  transform: translateX(22px);
}

.theme-toggle[aria-pressed="true"] .theme-toggle-icon {
  color: #2a2108;
}

:root[data-theme="dark"] .theme-toggle,
:root[data-theme="dark"] .header-home-button,
:root[data-theme="dark"] .home-button {
  border-color: var(--line);
  color: var(--ink);
  background: rgba(23, 34, 49, 0.86);
}

:root[data-theme="dark"] .profile-dropdown,
:root[data-theme="dark"] .login-card,
:root[data-theme="dark"] .admin-toolbar,
:root[data-theme="dark"] .admin-section,
:root[data-theme="dark"] .admin-app-option,
:root[data-theme="dark"] .blocked-ip-card {
  color: var(--ink);
  background: var(--surface);
}

:root[data-theme="dark"] .security-chip.danger {
  color: #fecaca;
  background: rgba(127, 29, 29, 0.32);
  border-color: rgba(248, 113, 113, 0.55);
}

:root[data-theme="dark"] .security-chip.warn {
  color: #fde68a;
  background: rgba(113, 63, 18, 0.32);
  border-color: rgba(234, 179, 8, 0.55);
}

:root[data-theme="dark"] .success-empty {
  color: #bbf7d0;
  background: rgba(20, 83, 45, 0.26);
  border-color: rgba(74, 222, 128, 0.42);
}

:root[data-theme="dark"] .calculator-hero,
:root[data-theme="dark"] .calculator-card,
:root[data-theme="dark"] .scale-row,
:root[data-theme="dark"] .scale-preview-row,
:root[data-theme="dark"] .scale-entry-row {
  color: var(--ink);
  background: var(--surface);
}

:root[data-theme="dark"] .calculator-result-card {
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(224, 177, 30, 0.2), transparent 34%),
    linear-gradient(135deg, #172231, #101a28 72%);
}

:root[data-theme="dark"] .calculator-grade-badge {
  color: #111827;
}

:root[data-theme="dark"] .scale-row-head,
:root[data-theme="dark"] .scale-entry-head,
:root[data-theme="dark"] .wizard-mode-tabs button.active {
  color: #f8fafc;
  background: rgba(224, 177, 30, 0.22);
}

:root[data-theme="dark"] .login-error {
  color: #ffd0d0;
  border-color: #8d4242;
  background: #351f26;
}

:root[data-theme="dark"] .header-home-button:hover {
  color: #08111d;
  background: var(--accent);
}

.app-view {
  display: none;
}

.app-view.active {
  display: block;
}

.home-view {
  display: none;
}

.home-view.active {
  display: grid;
  gap: 18px;
}

.home-intro {
  max-width: 780px;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
}

.home-intro h2 {
  font-size: clamp(1.5rem, 2.4vw, 2.35rem);
  line-height: 1.1;
}

.home-intro p:not(.eyebrow) {
  max-width: 620px;
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.app-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(260px, 1fr));
  gap: 16px;
}

.app-card {
  min-height: 220px;
  display: flex;
  align-items: flex-start;
  gap: 13px;
  border-radius: 16px;
  padding: 22px;
  text-align: left;
  background:
    linear-gradient(135deg, rgba(255, 244, 204, 0.86), rgba(255, 255, 255, 0.92)),
    var(--surface);
  box-shadow: var(--shadow);
}

.app-card:hover {
  transform: translateY(-2px);
}

.app-card strong {
  font-size: clamp(1.35rem, 2vw, 2rem);
  line-height: 1.1;
}

.app-card-copy {
  display: grid;
  gap: 13px;
}

.app-card-copy > span:last-child {
  max-width: 540px;
  color: var(--muted);
  line-height: 1.55;
}

.app-icon {
  flex: 0 0 auto;
  width: 70px;
  height: 70px;
  display: grid;
  place-items: center;
  border: 1px solid #efd987;
  border-radius: 16px;
  color: var(--accent-dark);
  background: var(--accent-soft);
}

.app-icon.math {
  color: #1f5f57;
  background: var(--mint-soft);
  border-color: #b9dad4;
}

.app-icon.grades {
  color: #35415f;
  background: #eef1ff;
  border-color: #cbd4ff;
}

.app-icon.calculator {
  color: #63420c;
  background: #fff7d8;
  border-color: #e6c55c;
}

.app-icon.dictation {
  color: #6b4b09;
  background: #fff2bf;
  border-color: #efd987;
}

.app-icon.reports {
  color: var(--accent-dark);
  background: transparent;
  border-color: #efd987;
}

.app-icon svg {
  width: 43px;
  height: 43px;
  fill: none;
  stroke: currentColor;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.app-card-kicker {
  width: fit-content;
  border-radius: 999px;
  padding: 6px 10px;
  color: var(--accent-dark);
  background: var(--accent-soft);
  font-size: 0.75rem;
  font-weight: 850;
  text-transform: uppercase;
}

.app-page-heading {
  display: none;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.app-page-heading h2 {
  margin-top: 4px;
  font-size: clamp(1.35rem, 2.1vw, 2rem);
}

.home-button {
  border-color: #efd987;
  color: var(--accent-dark);
  background: rgba(255, 255, 255, 0.78);
  font-weight: 800;
}

.app-page-heading > .home-button {
  display: none;
}

.dictation-shell {
  display: grid;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
}

.dictation-topline,
.dictation-settings,
.dictation-output {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.dictation-topline h2,
.dictation-output h2 {
  margin: 4px 0 0;
}

.dictation-model-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.dictation-model-card {
  min-height: 150px;
  display: grid;
  align-content: start;
  gap: 10px;
  border-radius: 14px;
  padding: 16px;
  text-align: left;
  background: var(--surface);
}

.dictation-model-card.selected {
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--accent-soft), var(--surface));
  box-shadow: inset 0 0 0 1px rgba(215, 169, 39, 0.28);
}

.dictation-model-card span {
  font-weight: 850;
}

.dictation-model-card strong {
  width: fit-content;
  border-radius: 999px;
  padding: 5px 10px;
  color: var(--accent-dark);
  background: var(--accent-soft);
  font-size: 0.85rem;
}

.dictation-model-card small {
  color: var(--muted);
  line-height: 1.45;
}

.dictation-settings {
  align-items: end;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  background: var(--soft);
}

.dictation-settings fieldset {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  min-width: min(360px, 100%);
  margin: 0;
  border: 0;
  padding: 0;
}

.dictation-settings legend,
.dictation-settings label span {
  width: 100%;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 850;
}

.dictation-settings fieldset label {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  background: var(--surface);
}

.dictation-settings input[type="radio"] {
  width: auto;
  height: auto;
}

.dictation-settings > label {
  width: 150px;
}

.dictation-settings .primary {
  min-width: 180px;
}

.dictation-output {
  align-items: stretch;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  background: var(--surface);
}

.dictation-output textarea {
  min-height: 260px;
  background: var(--soft);
}

.dictation-model-modal {
  width: min(880px, 100%);
}

.dictation-model-list {
  display: grid;
  gap: 9px;
  max-height: 260px;
  overflow: auto;
  padding-right: 2px;
}

.dictation-model-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 46px;
  gap: 8px;
  align-items: stretch;
}

.dictation-model-item > button:first-child {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
  text-align: left;
  background: var(--soft);
}

.dictation-model-item span {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 750;
}

.dictation-model-form {
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.dictation-model-form textarea {
  min-height: 170px;
}

:root[data-theme="dark"] .home-intro,
:root[data-theme="dark"] .dictation-shell,
:root[data-theme="dark"] .app-card {
  background: rgba(23, 34, 49, 0.88);
}

:root[data-theme="dark"] .app-card {
  background:
    linear-gradient(135deg, rgba(224, 177, 47, 0.12), rgba(23, 34, 49, 0.92)),
    var(--surface);
}

:root[data-theme="dark"] .app-icon.dictation,
:root[data-theme="dark"] .app-icon.grades,
:root[data-theme="dark"] .app-icon.math,
:root[data-theme="dark"] .app-icon.reports {
  background: var(--soft);
  border-color: var(--line);
  color: var(--accent-dark);
}

:root[data-theme="dark"] input,
:root[data-theme="dark"] select,
:root[data-theme="dark"] textarea,
:root[data-theme="dark"] button {
  color: var(--ink);
}

:root[data-theme="dark"] .mini-modal,
:root[data-theme="dark"] .control-card,
:root[data-theme="dark"] .action-section,
:root[data-theme="dark"] .results-shell,
:root[data-theme="dark"] .editor-panel,
:root[data-theme="dark"] .gradebook-main,
:root[data-theme="dark"] .gradebook-panel,
:root[data-theme="dark"] .class-card,
:root[data-theme="dark"] .subject-card,
:root[data-theme="dark"] .topic-panel,
:root[data-theme="dark"] .tu-card,
:root[data-theme="dark"] .suggestion-card,
:root[data-theme="dark"] .gradebook-table-wrap {
  background: var(--surface);
}

:root[data-theme="dark"] .suggestion-card:hover {
  border-color: var(--accent);
}

:root[data-theme="dark"] .modal-backdrop {
  background: rgba(3, 7, 12, 0.62);
}

:root[data-theme="dark"] .school-year-card,
:root[data-theme="dark"] .school-year-card.archived,
:root[data-theme="dark"] .class-create-strip,
:root[data-theme="dark"] .gradebook-student-shortcut,
:root[data-theme="dark"] .subject-picker,
:root[data-theme="dark"] .matrix-topic-bar,
:root[data-theme="dark"] .matrix-topic-editor,
:root[data-theme="dark"] .gradebook-table th,
:root[data-theme="dark"] .gradebook-table td,
:root[data-theme="dark"] .gradebook-table .note-single-cell,
:root[data-theme="dark"] .gradebook-table .note-total-cell,
:root[data-theme="dark"] .gradebook-table .matrix-col-main,
:root[data-theme="dark"] .gradebook-table .matrix-col-alt,
:root[data-theme="dark"] .gradebook-table .row-number,
:root[data-theme="dark"] .gradebook-table .student-name-cell,
:root[data-theme="dark"] .gradebook-table .corner-cell {
  background: var(--surface) !important;
}

:root[data-theme="dark"] .gradebook-table tbody tr:nth-child(even) th,
:root[data-theme="dark"] .gradebook-table tbody tr:nth-child(even) td,
:root[data-theme="dark"] .gradebook-table tbody tr:nth-child(even) .matrix-col-main,
:root[data-theme="dark"] .gradebook-table tbody tr:nth-child(even) .matrix-col-alt {
  background: #1c2938 !important;
}

:root[data-theme="dark"] .gradebook-table tbody tr:hover th,
:root[data-theme="dark"] .gradebook-table tbody tr:hover td,
:root[data-theme="dark"] .gradebook-table tbody tr:hover .matrix-col-main,
:root[data-theme="dark"] .gradebook-table tbody tr:hover .matrix-col-alt,
:root[data-theme="dark"] .gradebook-table tbody tr:hover .note-total-cell,
:root[data-theme="dark"] .gradebook-table tbody tr:hover .average-cell {
  background: rgba(224, 177, 47, 0.18) !important;
}

:root[data-theme="dark"] .gradebook-table thead th,
:root[data-theme="dark"] .gradebook-table thead .corner-cell,
:root[data-theme="dark"] .gradebook-table thead .row-number,
:root[data-theme="dark"] .gradebook-table thead .student-name-cell,
:root[data-theme="dark"] .matrix-note-header,
:root[data-theme="dark"] .matrix-part-header,
:root[data-theme="dark"] .matrix-part-header.matrix-col-alt,
:root[data-theme="dark"] .matrix-note-header.matrix-col-alt {
  color: var(--ink);
  background: #223144 !important;
}

:root[data-theme="dark"] .matrix-group-header,
:root[data-theme="dark"] .matrix-group-header.matrix-group-band-1,
:root[data-theme="dark"] .gradebook-table .average-header,
:root[data-theme="dark"] .gradebook-table tbody td:last-child,
:root[data-theme="dark"] .gradebook-table tfoot td:last-child,
:root[data-theme="dark"] .gradebook-table tfoot th,
:root[data-theme="dark"] .gradebook-table tfoot td,
:root[data-theme="dark"] .gradebook-table tfoot .average-cell {
  color: var(--ink);
  background: #233044 !important;
}

:root[data-theme="dark"] .matrix-group-header span,
:root[data-theme="dark"] .matrix-note-header span,
:root[data-theme="dark"] .matrix-part-header span {
  color: #c5d0dd;
}

:root[data-theme="dark"] .matrix-group-header strong,
:root[data-theme="dark"] .matrix-note-header strong,
:root[data-theme="dark"] .matrix-part-header strong,
:root[data-theme="dark"] .class-card span,
:root[data-theme="dark"] .subject-card span,
:root[data-theme="dark"] .class-card-main span,
:root[data-theme="dark"] .subject-card-main span {
  color: var(--ink);
}

:root[data-theme="dark"] .class-card.active,
:root[data-theme="dark"] .subject-card.active,
:root[data-theme="dark"] .school-year-card.active {
  background: rgba(224, 177, 47, 0.16) !important;
}

:root[data-theme="dark"] .gradebook-table th,
:root[data-theme="dark"] .gradebook-table td {
  border-color: #34475a;
}

:root[data-theme="dark"] .compound-grade-cell button {
  background: var(--soft);
  border-color: var(--line);
}

.gradebook-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.gradebook-side {
  display: grid;
  grid-template-columns: repeat(3, minmax(240px, 1fr));
  gap: 14px;
}

.gradebook-side.is-hidden,
.is-hidden {
  display: none !important;
}

.gradebook-panel,
.gradebook-main {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.gradebook-panel {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 16px;
}

.gradebook-panel-head,
.gradebook-toolbar,
.gradebook-actions,
.inline-form,
.student-list-item,
.topic-editor-title,
.subtopic-item {
  display: flex;
  gap: 8px;
}

.gradebook-panel-head,
.gradebook-toolbar,
.topic-editor-title {
  align-items: center;
  justify-content: space-between;
}

.inline-form {
  align-items: stretch;
}

.class-toolbar {
  display: flex;
  gap: 10px;
  margin-top: 6px;
}

.school-year-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.school-year-controls strong {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 850;
}

.school-year-controls button {
  min-height: 40px;
}

.school-year-menu-modal {
  width: min(620px, 100%);
}

.school-year-list {
  display: grid;
  gap: 10px;
}

.school-year-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
  background: #fff;
}

.school-year-card.active {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.school-year-card.archived {
  background: #f7f9fb;
}

.school-year-main {
  min-width: 0;
  min-height: 52px;
  display: grid;
  gap: 4px;
  justify-items: start;
  border: 0;
  padding: 0;
  background: transparent;
  text-align: left;
}

.school-year-main:hover {
  border-color: transparent;
}

.school-year-main span {
  font-size: 1.05rem;
  font-weight: 900;
}

.school-year-main small {
  color: var(--muted);
  font-size: 0.82rem;
}

.school-year-actions {
  display: flex;
  gap: 8px;
}

.school-year-archive-button,
.school-year-delete-button {
  width: 64px;
  height: 44px;
  min-height: 44px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  line-height: 1;
  font-size: 0.82rem;
  font-weight: 900;
}

.school-year-delete-button {
  width: 44px;
}

.school-year-archive-button {
  color: var(--accent-dark);
}

.school-year-delete-button {
  color: #dc2626;
}

.school-year-delete-button:hover {
  color: #991b1b;
  background: #fee2e2;
}

.icon-action {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  font-size: 1.4rem;
  font-weight: 900;
  line-height: 1;
}

.class-landing-grid,
.subject-card-grid {
  display: grid;
  gap: 12px;
  padding: 16px;
}

.class-landing-grid {
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.class-card,
.subject-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
}

.class-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 14px;
}

.class-card.active,
.subject-card.active {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.class-card-main,
.subject-card-main {
  display: grid;
  align-content: center;
  gap: 5px;
  min-height: 76px;
  text-align: left;
}

.subject-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 14px;
}

.subject-card-main {
  min-width: 0;
  border: 0;
  padding: 0 4px;
  background: transparent;
}

.subject-card-main:hover {
  border-color: transparent;
}

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

.class-card-main {
  min-width: 0;
  border: 0;
  padding: 0 4px;
  background: transparent;
}

.class-card-main:hover {
  border-color: transparent;
}

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

.class-manage-icon,
.class-delete-button,
.subject-edit-button,
.subject-delete-button {
  width: 48px;
  height: 48px;
  min-height: 48px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1;
}

.matrix-topic-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border-bottom: 1px solid var(--line);
  padding: 16px;
  background: #fbfcfd;
}

.matrix-topic-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
  align-items: end;
}

.semester-filter {
  width: 180px;
  display: grid;
  gap: 5px;
}

.semester-filter span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 850;
  text-transform: uppercase;
}

.matrix-topic-editor {
  padding: 16px;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.subject-edit-button {
  color: var(--accent-dark);
}

.subject-delete-button {
  color: #dc2626;
}

.subject-delete-button:hover {
  color: #991b1b;
  background: #fee2e2;
}

.class-manage-icon {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
}

.class-delete-button {
  color: #dc2626;
}

.class-manage-icon:hover {
  color: #fff;
  background: #c99a09;
}

.class-delete-button:hover {
  color: #991b1b;
  background: #fee2e2;
}

.class-create-strip {
  border-top: 1px solid var(--line);
  padding: 16px;
  background: #fbfcfd;
}

.class-create-strip .primary {
  width: 100%;
  min-height: 48px;
}

.class-card span,
.subject-card span,
.class-card-main span,
.subject-card-main span {
  font-size: 1.06rem;
  font-weight: 850;
}

.class-card small,
.subject-card small,
.class-card-main small,
.subject-card-main small {
  color: var(--muted);
  font-size: 0.82rem;
}

.gradebook-student-shortcut,
.subject-picker {
  border-top: 1px solid var(--line);
  padding: 16px;
  background: #fbfcfd;
}

.subject-picker {
  display: grid;
  grid-template-columns: minmax(210px, 0.7fr) minmax(280px, 1fr);
  gap: 12px;
  align-items: start;
}

.subject-toolbar {
  display: flex;
  gap: 10px;
  justify-content: end;
}

.subject-toolbar select {
  min-width: 220px;
}

.subject-card-grid {
  grid-column: 1 / -1;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  padding: 0;
}

.inline-form input,
.inline-form select,
.student-list-item input,
.topic-editor-title input,
.subtopic-item input {
  min-width: 0;
}

.class-list,
.student-list,
.topic-editor,
.subtopic-list {
  display: grid;
  gap: 8px;
}

.class-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 46px;
  text-align: left;
}

.class-list-item.active {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.class-list-item span,
.class-list-item small {
  display: block;
}

.class-list-item small,
.empty-inline {
  color: var(--muted);
  font-size: 0.82rem;
}

.student-list-item button,
.topic-editor-title button,
.subtopic-item button {
  flex: 0 0 auto;
}

.topic-board {
  display: grid;
  gap: 14px;
}

.topic-board-rail {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(155px, 1fr));
  gap: 10px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--soft);
}

.topic-area-card {
  min-height: 82px;
  justify-content: start;
  align-items: start;
  text-align: left;
  border-color: var(--line);
  border-radius: 14px;
  padding: 14px;
  background: var(--surface);
}

.topic-area-card span {
  display: block;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 900;
}

.topic-area-card small {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-weight: 800;
}

.topic-area-card.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px rgba(215, 169, 39, 0.45);
}

.topic-workspace {
  display: grid;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 14px;
  background:
    radial-gradient(circle at top left, rgba(215, 169, 39, 0.18), transparent 32%),
    var(--surface);
}

.topic-workspace-head {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) 38px;
  gap: 10px;
  align-items: center;
}

.topic-workspace-head > div:first-child {
  min-width: 0;
  display: grid;
  gap: 5px;
}

.topic-workspace-head input {
  border: 0;
  background: transparent;
  font-size: 1.35rem;
  font-weight: 900;
}

.topic-dialog-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  justify-content: end;
}

.topic-dialog-stats span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 10px;
  color: var(--muted);
  background: var(--soft);
  font-size: 0.78rem;
  font-weight: 900;
}

.topic-dialog-footer {
  display: grid;
  padding-top: 10px;
}

.topic-flow-kicker {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.danger-icon-button {
  width: 38px;
  height: 38px;
  min-height: 38px;
  display: inline-grid;
  place-items: center;
  border-color: #fecaca;
  padding: 0;
  color: #dc2626;
  background: #fff;
  font-size: 1.35rem;
  font-weight: 900;
  line-height: 1;
}

.danger-icon-button:hover {
  color: #991b1b;
  background: #fee2e2;
}

.topic-note-cloud {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(255px, 1fr));
  gap: 12px;
}

.topic-note-node {
  position: relative;
  display: grid;
  gap: 10px;
  min-height: 148px;
  align-content: start;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 12px;
  background: var(--soft);
}

.topic-note-node.has-parts {
  border-color: rgba(17, 91, 120, 0.25);
  background: linear-gradient(180deg, rgba(217, 244, 247, 0.75), var(--soft));
}

.topic-note-node.is-direct {
  border-color: rgba(215, 169, 39, 0.35);
  background: linear-gradient(180deg, rgba(255, 243, 191, 0.62), var(--soft));
}

.topic-note-node-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 76px 38px;
  gap: 7px;
  align-items: center;
}

.topic-note-node-head textarea {
  grid-column: 1 / -1;
  min-width: 0;
  width: 100%;
  min-height: 46px;
  max-height: 72px;
  resize: none;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 10px 12px;
  background: var(--surface);
  color: var(--ink);
  line-height: 1.25;
  font-weight: 900;
  overflow-wrap: anywhere;
  overflow: auto;
}

.topic-semester-select {
  width: 76px;
  height: 38px;
  min-width: 0;
  font-weight: 850;
}

.topic-note-node-head .topic-semester-select {
  grid-column: 2;
  grid-row: 2;
}

.topic-note-node-head .danger-icon-button {
  grid-column: 3;
  grid-row: 2;
}

.topic-note-kind {
  grid-column: 1;
  grid-row: 2;
  width: fit-content;
  max-width: 100%;
  border: 1px solid rgba(215, 169, 39, 0.38);
  border-radius: 999px;
  padding: 7px 10px;
  color: var(--accent-dark);
  background: rgba(255, 243, 191, 0.72);
  font-size: 0.76rem;
  font-weight: 900;
}

.topic-relation-label {
  width: fit-content;
  border-radius: 999px;
  padding: 4px 9px;
  color: var(--accent-dark);
  background: var(--accent-soft);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.topic-parts-orbit {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  align-content: start;
}

.topic-part-bubble {
  min-width: 150px;
  flex: 1 1 150px;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 6px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 7px;
  background: var(--surface);
}

.topic-part-bubble span {
  width: 24px;
  height: 24px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  color: var(--accent-dark);
  background: var(--accent-soft);
  font-size: 0.72rem;
  font-weight: 900;
}

.topic-part-bubble textarea {
  border: 0;
  width: 100%;
  min-height: 36px;
  max-height: 54px;
  padding: 0;
  resize: none;
  background: transparent;
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 800;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.topic-new-node,
.topic-empty-note,
.topic-empty-board {
  min-height: 148px;
  display: grid;
  place-items: center;
  gap: 6px;
  border: 1px dashed var(--line);
  border-radius: 18px;
  color: var(--muted);
  background: transparent;
  text-align: center;
  font-weight: 850;
}

.topic-new-node span {
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  color: #fff;
  background: var(--accent);
  font-size: 1.5rem;
  line-height: 1;
}

.topic-empty-board {
  min-height: 190px;
  padding: 24px;
  background: var(--soft);
}

.computed-grade {
  min-width: 46px;
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 9px;
  font-weight: 900;
  background: #fff;
}

.rounding-choice .computed-grade {
  min-height: 28px;
  font-size: 0.78rem;
}

.computed-grade.muted {
  color: var(--muted);
}

.rounding-choice {
  min-width: 190px;
  display: grid;
  gap: 6px;
}

.rounding-choice span {
  color: var(--danger);
  font-size: 0.76rem;
  font-weight: 800;
}

.rounding-choice select {
  min-height: 34px;
  font-size: 0.82rem;
  border-color: #d34b4b;
  background: #fffafa;
}

.rounding-required {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  border: 1px solid var(--danger);
  border-radius: 8px;
  color: var(--danger);
  background: #fff1f1;
  font-size: 0.78rem;
}

.rounding-required.compact {
  min-height: 30px;
  padding: 0 8px;
  font-size: 0.72rem;
}

.part-grade-modal {
  width: min(540px, 100%);
}

.part-grade-list,
.part-grade-grid {
  display: grid;
  gap: 10px;
}

.part-grade-row,
.part-grade-rounding,
.part-grade-result {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  background: #fbfcfd;
}

.part-grade-row span,
.part-grade-result span {
  font-weight: 850;
}

.part-grade-rounding {
  grid-template-columns: 1fr;
  border-color: #e0a2a2;
  background: #fffafa;
}

.part-grade-rounding span {
  color: var(--danger);
  font-size: 0.86rem;
  font-weight: 850;
}

.part-grade-rounding select {
  min-height: 38px;
  border-color: #d34b4b;
}

.part-grade-result {
  margin-top: 4px;
  background: #f7f9fb;
}

.debug-modal {
  width: min(620px, 100%);
}

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

.debug-group {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.58);
}

.debug-summary-card {
  cursor: pointer;
}

.debug-summary-card summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  min-height: 72px;
  list-style: none;
}

.debug-summary-card summary::-webkit-details-marker {
  display: none;
}

.debug-summary-card summary > .debug-state-dot {
  position: static;
  width: 14px;
  height: 14px;
}

.debug-summary-card summary span:last-child {
  display: grid;
  gap: 4px;
}

.debug-summary-card summary strong {
  font-size: 1.08rem;
}

.debug-summary-card summary em {
  color: var(--muted);
  font-style: normal;
  font-weight: 700;
  line-height: 1.35;
}

.debug-summary-card[open] summary {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.debug-tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.debug-tile {
  position: relative;
  display: grid;
  align-content: start;
  min-height: 92px;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  background: #fbfcfd;
}

.debug-ok {
  border-color: #9ccbbb;
  background: #eaf7f2;
}

.debug-warn {
  border-color: #e2c36d;
  background: #fff7da;
}

.debug-error {
  border-color: #e0a2a2;
  background: #fff1f1;
}

.debug-neutral {
  background: #f7f9fb;
}

.debug-tile span:not(.debug-state-dot) {
  color: var(--muted);
  font-weight: 800;
}

.debug-tile strong {
  overflow-wrap: anywhere;
  font-size: 1.02rem;
  line-height: 1.25;
}

.debug-state-dot {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #94a3b8;
  box-shadow: 0 0 0 3px rgba(148, 163, 184, 0.16);
}

.debug-ok .debug-state-dot {
  background: #16886f;
  box-shadow: 0 0 0 3px rgba(22, 136, 111, 0.16);
}

.debug-warn .debug-state-dot {
  background: #d69a00;
  box-shadow: 0 0 0 3px rgba(214, 154, 0, 0.2);
}

.debug-error .debug-state-dot {
  background: #dc2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.16);
}

.part-add-button {
  flex: 0 0 auto;
  min-height: 52px;
  align-self: stretch;
}

.subtopic-create-row {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) 150px 150px auto;
  gap: 8px;
  align-items: stretch;
}

.subtopic-create-row input,
.subtopic-create-row select,
.subtopic-create-row button {
  width: 100%;
  position: relative;
  z-index: 1;
  pointer-events: auto;
}

.subtopic-create-row select {
  cursor: pointer;
  background-color: var(--surface);
}

.gradebook-main {
  min-width: 0;
  overflow: hidden;
}

.gradebook-subnav {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.gradebook-subnav button {
  min-height: 36px;
  border-radius: 999px;
  font-weight: 800;
}

.gradebook-subnav button.active {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: var(--accent-soft);
}

.gradebook-page {
  display: none;
}

.gradebook-page.active {
  display: block;
}

.gradebook-toolbar {
  padding: 16px;
  border-bottom: 1px solid var(--line);
  background: #fbfcfd;
}

.class-title-input {
  width: min(460px, 100%);
  font-size: 1.15rem;
  font-weight: 800;
}

.gradebook-actions {
  flex-wrap: wrap;
  justify-content: flex-end;
}

.import-button {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 0 14px;
  background: var(--surface);
  cursor: pointer;
}

.import-button input {
  display: none;
}

.gradebook-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  padding: 16px;
}

.gradebook-dashboard,
.gradebook-analysis {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(320px, 1.15fr);
  gap: 16px;
  padding: 0 16px 16px;
}

.gradebook-welcome-card,
.analysis-panel {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
}

.gradebook-welcome-card,
.analysis-panel {
  padding: 18px;
}

.gradebook-welcome-card p:not(.eyebrow) {
  color: var(--muted);
  line-height: 1.55;
}

.analysis-row small {
  color: var(--muted);
}

.analysis-list {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.analysis-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 80px 90px;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  background: var(--soft);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  align-items: start;
  justify-items: center;
  overflow: auto;
  padding: 32px 18px;
  background: rgba(22, 34, 48, 0.38);
  backdrop-filter: blur(6px);
}

.compact-backdrop {
  align-items: center;
}

.gradebook-modal {
  width: min(1180px, 100%);
  display: grid;
  grid-template-columns: repeat(3, minmax(240px, 1fr));
  gap: 14px;
}

.split-modal {
  width: min(760px, 100%);
  display: grid;
  gap: 14px;
}

.topic-modal {
  width: min(1180px, 100%);
}

.topic-panel-wide {
  min-width: 0;
}

.mini-modal {
  width: min(460px, 100%);
  display: grid;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.mini-modal h2 {
  margin: 4px 0 8px;
}

.mini-modal p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.account-notice-backdrop {
  z-index: 140;
}

.account-notice-modal {
  width: min(520px, 100%);
  text-align: left;
}

.account-notice-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  color: #fff;
  background: #159467;
  box-shadow: 0 14px 32px rgba(21, 148, 103, 0.25);
  font-size: 1.65rem;
  font-weight: 950;
}

.ldap-link-icon {
  background: var(--accent);
  box-shadow: 0 14px 32px rgba(222, 174, 30, 0.25);
}

.account-link-actions {
  justify-content: space-between;
  flex-wrap: wrap;
}

.account-link-actions button {
  min-width: 170px;
}

.mini-modal label,
.editor-intro-panel label {
  display: grid;
  gap: 7px;
}

.mini-modal label span,
.editor-intro-panel label span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.student-modal-meta {
  margin: 8px 0 0;
  color: var(--muted);
  font-weight: 800;
}

.modal-footer-panel {
  padding-top: 10px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.gradebook-modal .editor-intro-panel,
.gradebook-modal .danger-panel {
  grid-column: 1 / -1;
}

.gradebook-summary div {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  background: var(--soft);
}

.gradebook-summary strong,
.gradebook-summary span {
  display: block;
}

.gradebook-summary strong {
  font-size: 1.2rem;
}

.gradebook-summary span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 780;
}

.gradebook-table-wrap {
  max-height: 70vh;
  overflow: auto;
  border-top: 1px solid var(--line);
  background: #ffffff;
  scrollbar-gutter: stable;
}

.gradebook-table {
  width: max-content;
  min-width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.9rem;
}

.mobile-matrix-list {
  display: none;
}

.gradebook-table th,
.gradebook-table td {
  min-width: 92px;
  height: 44px;
  border-right: 1px solid #dce6ee;
  border-bottom: 1px solid #dce6ee;
  padding: 6px;
  text-align: center;
  background: #fff;
}

.gradebook-table .note-single-cell {
  background: #ffffff;
}

.gradebook-table .note-total-cell {
  min-width: 118px;
  background: #f8fafc;
}

.gradebook-table tbody tr:nth-child(even) th,
.gradebook-table tbody tr:nth-child(even) td {
  background: #f7fafc;
}

.gradebook-table tbody tr:hover th,
.gradebook-table tbody tr:hover td {
  background: #fff7d8;
}

.compound-grade-cell {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.compound-grade-cell button {
  min-width: 38px;
  min-height: 30px;
  padding: 0 8px;
  border-radius: 8px;
  border-color: #d5e0ea;
  color: var(--accent-dark);
  background: #ffffff;
  font-size: 0.78rem;
  font-weight: 850;
}

.gradebook-table .matrix-group-start {
  border-left: 2px solid #d8b02c;
}

.gradebook-table .matrix-group-end {
  border-right: 1px solid #c8d5e1;
}

.gradebook-table .matrix-col-main {
  background: #ffffff;
}

.gradebook-table .matrix-col-alt {
  background: #ffffff;
}

.gradebook-table tbody tr:nth-child(even) .matrix-col-main {
  background: #fbfcfd;
}

.gradebook-table tbody tr:nth-child(even) .matrix-col-alt {
  background: #fbfcfd;
}

.gradebook-table tbody tr:hover .matrix-col-main,
.gradebook-table tbody tr:hover .matrix-col-alt,
.gradebook-table tbody tr:hover .note-total-cell,
.gradebook-table tbody tr:hover .average-cell {
  background: #fff7d8 !important;
}

.gradebook-table thead th {
  position: sticky;
  top: 0;
  z-index: 3;
  color: var(--accent-dark);
  background: var(--accent-soft);
}

.gradebook-table thead tr:nth-child(2) th {
  top: 42px;
}

.gradebook-table thead tr:nth-child(3) th {
  top: 84px;
}

.gradebook-table .row-number,
.gradebook-table .student-name-cell,
.gradebook-table .corner-cell {
  position: sticky;
  left: 0;
  z-index: 2;
  min-width: 56px;
  background: #f8fafc;
  box-shadow: 1px 0 0 #dce6ee;
}

.gradebook-table .student-name-cell {
  left: 56px;
  min-width: 190px;
  text-align: left;
}

.gradebook-table thead .corner-cell,
.gradebook-table thead .row-number,
.gradebook-table thead .student-name-cell {
  z-index: 6;
  background: #f7f9fb;
}

.gradebook-table .average-header,
.gradebook-table tbody td:last-child,
.gradebook-table tfoot td:last-child {
  position: sticky;
  right: 0;
  z-index: 2;
  background: #f7f9fb !important;
  box-shadow: -1px 0 0 #cfd9e3;
}

.gradebook-table .average-header {
  z-index: 7;
  background: #f3f7fb !important;
}

.gradebook-table tfoot th,
.gradebook-table tfoot td {
  position: sticky;
  bottom: 0;
  z-index: 5;
  height: 46px;
  border-top: 2px solid #cbd7e3;
  border-bottom: 0;
  background: #f3f7fb !important;
  box-shadow: 0 -1px 0 rgba(71, 85, 105, 0.08);
  font-size: 0.92rem;
  font-weight: 900;
}

.gradebook-table tfoot th {
  color: var(--ink);
  text-align: center;
}

.gradebook-table tfoot .average-cell {
  background: #edf3f8 !important;
}

.matrix-group-header,
.matrix-note-header,
.matrix-part-header {
  min-width: 118px;
  vertical-align: middle;
}

.matrix-group-header {
  background: #f4df91 !important;
}

.matrix-group-header.matrix-group-band-1 {
  background: #f4df91 !important;
}

.matrix-note-header {
  background: #fbfcfd !important;
}

.matrix-part-header {
  background: #f7f9fb !important;
}

.matrix-part-header.matrix-col-alt,
.matrix-note-header.matrix-col-alt {
  background: #f7f9fb !important;
}

.matrix-group-header span,
.matrix-note-header span,
.matrix-part-header span {
  display: block;
  margin-bottom: 3px;
  color: #6d7682;
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.matrix-group-header strong,
.matrix-note-header strong,
.matrix-part-header strong {
  display: block;
  color: var(--ink);
  font-size: 0.9rem;
}

.total-header strong {
  color: var(--accent-dark);
}

.total-header {
  background: #f8fafc !important;
}

.average-header {
  min-width: 76px;
  background: #f8fafc !important;
  font-size: 1.05rem;
}

.helper-cell {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.grade-select {
  width: 62px;
  height: 32px;
  border-radius: 8px;
  padding: 0 8px;
  text-align: center;
  font-weight: 800;
  border-color: #cdd8e4;
  background-color: #ffffff;
}

.grade-1,
.grade-2,
.grade-band-1 span,
.grade-band-2 span {
  background: #dff1ee;
}

.grade-3,
.grade-band-3 span {
  background: #fff1bf;
}

.grade-4,
.grade-band-4 span {
  background: #f8c58c;
}

.grade-5,
.grade-6,
.grade-band-5 span,
.grade-band-6 span {
  background: #f7dada;
}

.distribution-chart {
  min-height: 180px;
  display: grid;
  grid-template-columns: repeat(6, minmax(58px, 1fr));
  gap: 10px;
  align-items: end;
  margin: 18px 0;
}

.distribution-bar {
  display: grid;
  gap: 6px;
  justify-items: center;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.distribution-bar span {
  width: 100%;
  max-width: 54px;
  display: block;
  border: 1px solid var(--line);
  border-radius: 10px 10px 4px 4px;
}

.wide-analysis {
  grid-column: 1 / -1;
}

.average-cell {
  color: var(--ink);
  background: #f7f9fb !important;
  font-weight: 850;
}

.empty-cell {
  color: var(--muted);
  text-align: center;
}

.part-grade-modal .grade-select {
  width: 112px;
}

.grade-absent,
.export-grade.grade-absent {
  color: #4b5563;
  background: #e5e7eb !important;
  border-color: #9ca3af;
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--accent-dark);
  font-size: 0.74rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(1.75rem, 3vw, 2.7rem);
  line-height: 1.08;
}

h2 {
  font-size: 1rem;
}

.app-toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 50;
  max-width: min(420px, calc(100vw - 32px));
  border: 1px solid #cfdbe7;
  border-radius: 14px;
  padding: 12px 14px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
  font-size: 0.9rem;
  font-weight: 850;
}

.app-toast.is-busy {
  border-color: #e0c15d;
  color: var(--accent-dark);
  background: #fff8df;
}

.db-save-toast {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 120;
  display: flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  max-width: min(560px, calc(100vw - 32px));
  border: 1px solid;
  border-radius: 999px;
  padding: 12px 18px;
  font-size: 0.92rem;
  font-weight: 900;
  line-height: 1.2;
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.18);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -26px) scale(0.96);
  transition: opacity 180ms ease, transform 220ms ease;
}

.db-save-toast::before {
  content: "";
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 999px;
  color: #fff;
  font-size: 0.82rem;
  font-weight: 950;
  line-height: 1;
}

.db-save-toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
}

.db-save-toast.is-success {
  color: #11624e;
  border-color: #8fd0bd;
  background: #e9f8f2;
}

.db-save-toast.is-success::before {
  content: "✓";
  background: #159467;
}

.db-save-toast.is-error {
  color: #971d1d;
  border-color: #f2a4a4;
  background: #fff0f0;
}

.db-save-toast.is-error::before {
  content: "!";
  background: #c43a3a;
}

.loading-backdrop {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(13, 22, 32, 0.58);
  backdrop-filter: blur(5px);
}

.loading-card {
  width: min(520px, calc(100vw - 32px));
  display: grid;
  justify-items: center;
  gap: 18px;
  border: 1px solid rgba(215, 169, 39, 0.42);
  border-radius: 20px;
  padding: 30px 28px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 24px 70px rgba(22, 34, 48, 0.24);
  text-align: center;
}

.loading-spinner {
  width: 54px;
  height: 54px;
  border-radius: 999px;
  border: 5px solid rgba(215, 169, 39, 0.22);
  border-top-color: var(--accent);
  animation: loading-spin 850ms linear infinite;
}

.loading-card p {
  margin: 0;
  max-width: 420px;
  color: var(--ink);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 850;
  line-height: 1.35;
}

@keyframes loading-spin {
  to {
    transform: rotate(360deg);
  }
}

.print-frame {
  position: fixed;
  left: -12000px;
  top: 0;
  width: 1123px;
  height: 794px;
  border: 0;
  opacity: 0;
  pointer-events: none;
}

.control-board {
  display: grid;
  grid-template-columns: minmax(300px, 0.85fr) minmax(520px, 1.15fr);
  align-items: start;
  gap: 14px;
  margin-bottom: 18px;
}

.left-stack,
.right-stack {
  display: grid;
  align-content: start;
  gap: 14px;
}

.board-section,
.results-shell,
.editor-panel,
.suggestion-card,
.empty-state,
.provider-notice {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.board-section {
  display: grid;
  align-content: start;
  align-self: start;
  gap: 13px;
  padding: 16px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 9px;
}

.section-title > span,
.section-title.with-action > div > span {
  width: 26px;
  height: 26px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  color: var(--accent-dark);
  background: var(--accent-soft);
  font-size: 0.82rem;
  font-weight: 850;
}

.section-title.with-action {
  justify-content: space-between;
  gap: 10px;
}

.section-title.with-action > div {
  display: flex;
  align-items: center;
  gap: 9px;
}

.field-row,
label,
.result-editor {
  display: grid;
  gap: 8px;
}

.field-row.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

label span,
.result-editor > span {
  color: var(--muted);
  font-size: 0.83rem;
  font-weight: 780;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--ink);
  background: var(--soft);
}

input,
select {
  height: 40px;
  padding: 0 11px;
}

textarea {
  min-height: 250px;
  resize: vertical;
  padding: 13px;
  line-height: 1.55;
}

.topic-list {
  display: grid;
  gap: 9px;
}

.topic-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 150px;
  gap: 8px;
  align-items: end;
  border: 1px solid var(--line);
  border-radius: 11px;
  padding: 10px;
  background: var(--soft);
}

.remove-topic {
  grid-column: 1 / -1;
  min-height: 32px;
}

.action-section {
  align-content: start;
}

.actions {
  display: grid;
  gap: 9px;
  align-self: end;
}

.results-shell {
  overflow: hidden;
}

.results-shell.is-hidden {
  display: none;
}

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  background: #fbfcfd;
}

.results-header h2 {
  margin-top: 5px;
  font-size: 1.18rem;
}

.tool-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 9px;
}

.results-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 16px;
  padding: 18px 20px 20px;
}

.suggestions-list {
  min-width: 0;
}

.suggestions-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.empty-state {
  min-height: 280px;
  display: grid;
  place-items: center;
  padding: 28px;
  color: var(--muted);
  background: var(--soft);
  text-align: center;
  line-height: 1.45;
  box-shadow: none;
}

.provider-notice {
  margin-bottom: 12px;
  padding: 13px;
  color: var(--muted);
  background: var(--gold-soft);
  line-height: 1.45;
  box-shadow: none;
}

.suggestion-card {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 190px;
  padding: 15px;
  background: #fff;
  box-shadow: none;
  cursor: pointer;
  transition:
    border-color 140ms ease,
    background-color 140ms ease,
    transform 140ms ease;
}

.suggestion-card:hover {
  border-color: #b9c8d6;
  transform: translateY(-1px);
}

.suggestion-card.active {
  border-color: var(--mint);
  background: var(--mint-soft);
}

.suggestion-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.suggestion-card-header strong {
  color: var(--accent-dark);
  font-size: 0.9rem;
}

.suggestion-card-header button {
  min-height: 31px;
  padding: 0 11px;
  font-size: 0.86rem;
}

.suggestion-card p {
  margin: 0;
  line-height: 1.55;
}

.editor-panel {
  position: sticky;
  top: 18px;
  align-self: start;
  display: grid;
  gap: 12px;
  padding: 15px;
  background: #fbfcfd;
  box-shadow: none;
}

.quality-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.quality-strip div {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  background: var(--surface);
}

.quality-strip strong,
.quality-strip span {
  display: block;
}

.quality-strip strong {
  font-size: 1rem;
}

.quality-strip span {
  color: var(--muted);
  font-size: 0.78rem;
}

.tu-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 16px;
}

.tu-panel,
.tu-download-panel {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.tu-copy {
  max-width: 680px;
  margin: 10px 0 18px;
  color: var(--muted);
  line-height: 1.5;
}

.facts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(96px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.facts-grid label {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 58px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--soft);
  cursor: pointer;
}

.facts-grid input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.facts-grid label:has(input:checked) {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: var(--accent-soft);
  font-weight: 850;
}

.tu-settings {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.tu-download-state {
  min-height: 180px;
  display: grid;
  place-items: center;
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: 18px;
  color: var(--muted);
  background: var(--soft);
  text-align: center;
}

.download-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 9px;
  padding: 0 16px;
  color: #fff;
  background: var(--accent);
  text-decoration: none;
  font-weight: 800;
}

:root[data-theme="dark"] button:not(.primary):not(.class-manage-icon):not(.download-link) {
  color: var(--ink);
  background: #182436;
  border-color: #34475d;
}

:root[data-theme="dark"] button:not(.primary):not(.class-manage-icon):not(.download-link):hover {
  border-color: var(--accent);
  background: #213147;
}

:root[data-theme="dark"] .admin-delete-user-button {
  border-color: rgba(248, 113, 113, 0.46) !important;
  color: #fecaca !important;
  background: #182436 !important;
}

:root[data-theme="dark"] .admin-delete-user-button:hover:not(:disabled) {
  color: #fff !important;
  background: rgba(220, 38, 38, 0.28) !important;
}

:root[data-theme="dark"] .theme-toggle {
  background: #182436;
}

:root[data-theme="dark"] .theme-toggle-track {
  background: var(--accent);
}

:root[data-theme="dark"] .theme-toggle-knob {
  background: #101826;
}

:root[data-theme="dark"] .theme-toggle-icon {
  color: #3d3211;
}

:root[data-theme="dark"] .theme-toggle-moon {
  color: #fff4cc;
}

:root[data-theme="dark"] input,
:root[data-theme="dark"] select,
:root[data-theme="dark"] textarea {
  color: var(--ink);
  background: #111b2a;
  border-color: #34475d;
}

:root[data-theme="dark"] input::placeholder,
:root[data-theme="dark"] textarea::placeholder {
  color: #8da0b4;
}

:root[data-theme="dark"] .app-card {
  color: var(--ink);
  border-color: #34475d;
  background:
    linear-gradient(135deg, rgba(224, 177, 47, 0.12), rgba(23, 34, 49, 0.92)),
    #172231;
}

:root[data-theme="dark"] .dictation-settings,
:root[data-theme="dark"] .dictation-settings fieldset label,
:root[data-theme="dark"] .dictation-model-item > button:first-child,
:root[data-theme="dark"] .gradebook-summary div,
:root[data-theme="dark"] .gradebook-analysis,
:root[data-theme="dark"] .analysis-row,
:root[data-theme="dark"] .tu-download-state {
  color: var(--ink);
  background: #202d3c;
  border-color: #34475d;
}

:root[data-theme="dark"] .school-year-card,
:root[data-theme="dark"] .school-year-card.archived,
:root[data-theme="dark"] .class-create-strip,
:root[data-theme="dark"] .gradebook-student-shortcut,
:root[data-theme="dark"] .subject-picker,
:root[data-theme="dark"] .matrix-topic-bar,
:root[data-theme="dark"] .matrix-topic-editor {
  color: var(--ink);
  background: #172231 !important;
  border-color: #34475d;
}

:root[data-theme="dark"] .class-card.active,
:root[data-theme="dark"] .subject-card.active,
:root[data-theme="dark"] .school-year-card.active,
:root[data-theme="dark"] .dictation-model-card.selected {
  background: rgba(224, 177, 47, 0.16) !important;
  border-color: var(--accent);
}

:root[data-theme="dark"] .school-year-main,
:root[data-theme="dark"] .class-card-main,
:root[data-theme="dark"] .subject-card-main {
  color: var(--ink);
  background: transparent;
}

:root[data-theme="dark"] .app-toast {
  color: var(--ink);
  background: #172231;
  border-color: #42566d;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.36);
}

:root[data-theme="dark"] .app-toast.is-busy {
  color: #fff4cc;
  background: #2a240f;
  border-color: var(--accent);
}

:root[data-theme="dark"] .db-save-toast {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.42);
}

:root[data-theme="dark"] .db-save-toast.is-success {
  color: #bff7df;
  border-color: #31906f;
  background: #112a24;
}

:root[data-theme="dark"] .db-save-toast.is-error {
  color: #ffd3d3;
  border-color: #9f4b4b;
  background: #34191c;
}

:root[data-theme="dark"] .loading-backdrop {
  background: rgba(3, 7, 12, 0.68);
}

:root[data-theme="dark"] .loading-card {
  color: var(--ink);
  background: #172231;
  border-color: rgba(224, 177, 47, 0.46);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.46);
}

:root[data-theme="dark"] .loading-card p {
  color: var(--ink);
}

:root[data-theme="dark"] .loading-spinner {
  border-color: rgba(224, 177, 47, 0.22);
  border-top-color: var(--accent);
}

:root[data-theme="dark"] .debug-tile {
  background: #202d3c;
  border-color: #34475d;
}

:root[data-theme="dark"] .debug-group {
  background: rgba(15, 26, 40, 0.72);
  border-color: #34475d;
}

:root[data-theme="dark"] .debug-ok {
  background: rgba(47, 118, 109, 0.26);
}

:root[data-theme="dark"] .debug-warn {
  background: rgba(224, 177, 47, 0.2);
}

:root[data-theme="dark"] .debug-error {
  background: rgba(220, 38, 38, 0.18);
}

:root[data-theme="dark"] .subject-plan-card {
  color: var(--ink);
  background: #202d3c;
  border-color: #34475d;
}

:root[data-theme="dark"] .subject-plan-card.active {
  background: rgba(224, 177, 47, 0.18);
  border-color: var(--accent);
}

:root[data-theme="dark"] .topic-bubble {
  color: var(--ink);
  background: #202d3c;
  border-color: #34475d;
}

:root[data-theme="dark"] .topic-bubble-core {
  color: var(--ink);
  background: rgba(224, 177, 47, 0.18);
  border-color: var(--accent);
}

:root[data-theme="dark"] .topic-bubble.active {
  background: rgba(224, 177, 47, 0.2);
  border-color: var(--accent);
}

:root[data-theme="dark"] .topic-graph-lines path {
  stroke: rgba(215, 226, 239, 0.46);
}

:root[data-theme="dark"] .pause-hour,
:root[data-theme="dark"] .pause-cell {
  color: #b9c8d8;
  background:
    repeating-linear-gradient(-45deg, rgba(185, 200, 216, 0.13) 0 8px, rgba(185, 200, 216, 0.05) 8px 16px),
    #111b2a !important;
  border-color: #34475d;
}

:root[data-theme="dark"] .week-corner,
:root[data-theme="dark"] .week-head,
:root[data-theme="dark"] .week-hour {
  color: var(--ink);
  background: #202d3c;
  border-color: #34475d;
}

:root[data-theme="dark"] .week-cell {
  border-color: #34475d;
  background:
    linear-gradient(90deg, rgba(148, 163, 184, 0.08) 1px, transparent 1px),
    linear-gradient(180deg, rgba(148, 163, 184, 0.08) 1px, transparent 1px),
    #172231;
}

:root[data-theme="dark"] .week-cell.blocked {
  background: #202632;
}

:root[data-theme="dark"] .gradebook-table-wrap,
:root[data-theme="dark"] .gradebook-table th,
:root[data-theme="dark"] .gradebook-table td,
:root[data-theme="dark"] .gradebook-table .note-single-cell,
:root[data-theme="dark"] .gradebook-table .note-total-cell,
:root[data-theme="dark"] .gradebook-table .matrix-col-main,
:root[data-theme="dark"] .gradebook-table .matrix-col-alt,
:root[data-theme="dark"] .gradebook-table .row-number,
:root[data-theme="dark"] .gradebook-table .student-name-cell,
:root[data-theme="dark"] .gradebook-table .corner-cell,
:root[data-theme="dark"] .total-header,
:root[data-theme="dark"] .average-cell {
  color: var(--ink);
  background: #172231 !important;
  border-color: #34475d;
}

:root[data-theme="dark"] .gradebook-table tbody tr:nth-child(even) th,
:root[data-theme="dark"] .gradebook-table tbody tr:nth-child(even) td,
:root[data-theme="dark"] .gradebook-table tbody tr:nth-child(even) .matrix-col-main,
:root[data-theme="dark"] .gradebook-table tbody tr:nth-child(even) .matrix-col-alt {
  background: #1d2a39 !important;
}

:root[data-theme="dark"] .gradebook-table tbody tr:hover th,
:root[data-theme="dark"] .gradebook-table tbody tr:hover td,
:root[data-theme="dark"] .gradebook-table tbody tr:hover .matrix-col-main,
:root[data-theme="dark"] .gradebook-table tbody tr:hover .matrix-col-alt,
:root[data-theme="dark"] .gradebook-table tbody tr:hover .note-total-cell,
:root[data-theme="dark"] .gradebook-table tbody tr:hover .average-cell {
  background: rgba(224, 177, 47, 0.18) !important;
}

:root[data-theme="dark"] .gradebook-table thead th,
:root[data-theme="dark"] .gradebook-table thead .corner-cell,
:root[data-theme="dark"] .gradebook-table thead .row-number,
:root[data-theme="dark"] .gradebook-table thead .student-name-cell,
:root[data-theme="dark"] .matrix-note-header,
:root[data-theme="dark"] .matrix-part-header,
:root[data-theme="dark"] .matrix-part-header.matrix-col-alt,
:root[data-theme="dark"] .matrix-note-header.matrix-col-alt {
  color: var(--ink);
  background: #223144 !important;
}

:root[data-theme="dark"] .matrix-group-header,
:root[data-theme="dark"] .matrix-group-header.matrix-group-band-1,
:root[data-theme="dark"] .gradebook-table .average-header,
:root[data-theme="dark"] .gradebook-table tbody td:last-child,
:root[data-theme="dark"] .gradebook-table tfoot td:last-child,
:root[data-theme="dark"] .gradebook-table tfoot th,
:root[data-theme="dark"] .gradebook-table tfoot td,
:root[data-theme="dark"] .gradebook-table tfoot .average-cell {
  color: var(--ink);
  background: #3a321e !important;
}

:root[data-theme="dark"] .matrix-group-header span,
:root[data-theme="dark"] .matrix-note-header span,
:root[data-theme="dark"] .matrix-part-header span {
  color: #c5d0dd;
}

:root[data-theme="dark"] .matrix-group-header strong,
:root[data-theme="dark"] .matrix-note-header strong,
:root[data-theme="dark"] .matrix-part-header strong,
:root[data-theme="dark"] .class-card span,
:root[data-theme="dark"] .subject-card span,
:root[data-theme="dark"] .class-card-main span,
:root[data-theme="dark"] .subject-card-main span,
:root[data-theme="dark"] .school-year-main span {
  color: var(--ink);
}

:root[data-theme="dark"] .grade-select {
  color: #07111e;
}

:root[data-theme="dark"] .gradebook-table .matrix-group-start {
  border-left-color: var(--accent);
}

:root[data-theme="dark"] .gradebook-toolbar,
:root[data-theme="dark"] .subject-workspace {
  color: var(--ink);
  background: #172231 !important;
  border-color: #34475d;
}

:root[data-theme="dark"] .gradebook-toolbar .eyebrow,
:root[data-theme="dark"] .matrix-topic-bar .eyebrow,
:root[data-theme="dark"] .subject-picker .eyebrow {
  color: #ffe08a;
}

:root[data-theme="dark"] .school-year-card.active,
:root[data-theme="dark"] .class-card.active,
:root[data-theme="dark"] .subject-card.active,
:root[data-theme="dark"] .dictation-model-card.selected {
  background: #182436 !important;
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px rgba(224, 177, 47, 0.28);
}

:root[data-theme="dark"] .school-year-main,
:root[data-theme="dark"] .school-year-main:hover,
:root[data-theme="dark"] .class-card-main,
:root[data-theme="dark"] .class-card-main:hover,
:root[data-theme="dark"] .subject-card-main,
:root[data-theme="dark"] .subject-card-main:hover {
  background: transparent !important;
  border-color: transparent !important;
  box-shadow: none !important;
}

:root[data-theme="dark"] .grade-select,
:root[data-theme="dark"] .computed-grade {
  border-color: #5b7088;
  color: #07111e !important;
  text-shadow: none;
}

:root[data-theme="dark"] .grade-select.grade-1,
:root[data-theme="dark"] .grade-select.grade-2,
:root[data-theme="dark"] .computed-grade.grade-1,
:root[data-theme="dark"] .computed-grade.grade-2 {
  background: #dff1ee !important;
  color: #073d35 !important;
}

:root[data-theme="dark"] .grade-select.grade-3,
:root[data-theme="dark"] .computed-grade.grade-3 {
  background: #fff1bf !important;
  color: #4d3900 !important;
}

:root[data-theme="dark"] .grade-select.grade-4,
:root[data-theme="dark"] .computed-grade.grade-4 {
  background: #f8c58c !important;
  color: #3f2100 !important;
}

:root[data-theme="dark"] .grade-select.grade-5,
:root[data-theme="dark"] .grade-select.grade-6,
:root[data-theme="dark"] .computed-grade.grade-5,
:root[data-theme="dark"] .computed-grade.grade-6 {
  background: #f7dada !important;
  color: #641515 !important;
}

:root[data-theme="dark"] .grade-select.grade-empty,
:root[data-theme="dark"] .grade-select.grade-absent,
:root[data-theme="dark"] .computed-grade.grade-empty,
:root[data-theme="dark"] .computed-grade.muted {
  background: #111b2a !important;
  color: #c5d0dd !important;
}

:root[data-theme="dark"] .compound-grade-cell button {
  color: #fff4cc !important;
  background: #172231 !important;
  border-color: #51667e;
}

:root[data-theme="dark"] .gradebook-table tbody td:last-child,
:root[data-theme="dark"] .gradebook-table tfoot td:last-child,
:root[data-theme="dark"] .gradebook-table .average-header,
:root[data-theme="dark"] .gradebook-table tfoot th,
:root[data-theme="dark"] .gradebook-table tfoot td {
  color: #fff4cc !important;
}

:root[data-theme="dark"] .part-grade-row,
:root[data-theme="dark"] .part-grade-result {
  color: var(--ink);
  background: #202d3c;
  border-color: #34475d;
}

:root[data-theme="dark"] .part-grade-row span,
:root[data-theme="dark"] .part-grade-result span {
  color: #d7e2ef;
}

:root[data-theme="dark"] .part-grade-rounding {
  color: var(--ink);
  background: rgba(220, 38, 38, 0.14);
  border-color: #7f3d45;
}

:root[data-theme="dark"] .part-grade-rounding span {
  color: #fecaca;
}

:root[data-theme="dark"] .part-grade-rounding select {
  color: var(--ink);
  background: #111b2a;
  border-color: #b45353;
}

:root[data-theme="dark"] .part-grade-modal .computed-grade,
:root[data-theme="dark"] .part-grade-modal .grade-select {
  border-color: #5b7088;
  color: #07111e !important;
}

:root[data-theme="dark"] .part-grade-modal .computed-grade.grade-1,
:root[data-theme="dark"] .part-grade-modal .computed-grade.grade-2,
:root[data-theme="dark"] .part-grade-modal .grade-select.grade-1,
:root[data-theme="dark"] .part-grade-modal .grade-select.grade-2 {
  background: #dff3ee !important;
  color: #073d35 !important;
}

:root[data-theme="dark"] .part-grade-modal .computed-grade.grade-3,
:root[data-theme="dark"] .part-grade-modal .grade-select.grade-3 {
  background: #fff0a8 !important;
  color: #4d3900 !important;
}

:root[data-theme="dark"] .part-grade-modal .computed-grade.grade-4,
:root[data-theme="dark"] .part-grade-modal .grade-select.grade-4 {
  background: #f5b26b !important;
  color: #3f2100 !important;
}

:root[data-theme="dark"] .part-grade-modal .computed-grade.grade-5,
:root[data-theme="dark"] .part-grade-modal .computed-grade.grade-6,
:root[data-theme="dark"] .part-grade-modal .grade-select.grade-5,
:root[data-theme="dark"] .part-grade-modal .grade-select.grade-6 {
  background: #ffe5e5 !important;
  color: #641515 !important;
}

:root[data-theme="dark"] .part-grade-modal .computed-grade.grade-empty,
:root[data-theme="dark"] .part-grade-modal .grade-select.grade-absent,
:root[data-theme="dark"] .part-grade-modal .grade-select.grade-empty {
  background: #111b2a !important;
  color: #d7e2ef !important;
}

:root[data-theme="dark"] .topic-editor-group {
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(224, 177, 47, 0.14) 0 250px, #202d3c 250px),
    #202d3c;
  border-color: #34475d;
}

:root[data-theme="dark"] .topic-editor-title {
  border-color: #34475d;
}

:root[data-theme="dark"] .topic-editor-title > div,
:root[data-theme="dark"] .part-chip span {
  background: #172231;
  border-color: #34475d;
}

:root[data-theme="dark"] .topic-editor-title input,
:root[data-theme="dark"] .subtopic-card-head input,
:root[data-theme="dark"] .part-chip input {
  color: var(--ink);
  background: transparent !important;
  border-color: #34475d;
}

:root[data-theme="dark"] .topic-editor-title input {
  background: transparent !important;
  border: 1px solid #25384d;
  border-radius: 9px;
  padding: 0 10px;
}

:root[data-theme="dark"] .subtopic-card-head input {
  border-color: #34475d;
}

:root[data-theme="dark"] .part-chip input {
  border: 0;
}

:root[data-theme="dark"] .topic-editor-title input:focus-visible,
:root[data-theme="dark"] .subtopic-card-head input:focus-visible,
:root[data-theme="dark"] .part-chip input:focus-visible {
  background: #111b2a !important;
  outline-color: rgba(224, 177, 47, 0.35);
}

:root[data-theme="dark"] .subtopic-card {
  color: var(--ink);
  background: #172231;
  border-color: #34475d;
}

:root[data-theme="dark"] .part-chip {
  color: var(--ink);
  background: #202d3c;
  border-color: #34475d;
}

:root[data-theme="dark"] .part-chip span {
  color: #b9c8d8;
}

:root[data-theme="dark"] .part-add-button {
  color: var(--ink) !important;
  background: #253244 !important;
  border-color: #44586f !important;
}

:root[data-theme="dark"] .topic-add-note-button {
  color: var(--ink);
  background: #172231;
  border-color: #44586f;
}

:root[data-theme="dark"] .part-add-button:hover {
  border-color: var(--accent) !important;
  background: #2d3a4d !important;
}

:root[data-theme="dark"] .part-add-button:disabled {
  color: #8da0b4 !important;
  background: #202936 !important;
  border-color: #34475d !important;
}

:root[data-theme="dark"] .whole-grade-note {
  color: #d7e2ef;
  background: #202d3c;
  border-color: #34475d;
}

:root[data-theme="dark"] .topic-board-rail,
:root[data-theme="dark"] .topic-workspace,
:root[data-theme="dark"] .topic-empty-board {
  color: var(--ink);
  background: #172231;
  border-color: #34475d;
}

:root[data-theme="dark"] .topic-area-card,
:root[data-theme="dark"] .topic-note-node,
:root[data-theme="dark"] .topic-empty-note,
:root[data-theme="dark"] .topic-new-node {
  color: var(--ink);
  background: #202d3c;
  border-color: #34475d;
}

:root[data-theme="dark"] .mobile-matrix-card,
:root[data-theme="dark"] .mobile-note-row {
  color: var(--ink);
  background: #172231;
  border-color: #34475d;
}

:root[data-theme="dark"] .mobile-note-row {
  background: #202d3c;
}

:root[data-theme="dark"] .mobile-matrix-group h3,
:root[data-theme="dark"] .mobile-average-pill {
  color: #fff4cc;
  background: rgba(224, 177, 47, 0.16);
  border-color: #6f5e2f;
}

:root[data-theme="dark"] .topic-area-card.is-active {
  color: var(--ink);
  background: rgba(224, 177, 47, 0.18);
  border-color: var(--accent);
}

:root[data-theme="dark"] .topic-area-card span,
:root[data-theme="dark"] .topic-workspace-head input,
:root[data-theme="dark"] .topic-note-node-head textarea,
:root[data-theme="dark"] .topic-part-bubble textarea {
  color: var(--ink);
}

:root[data-theme="dark"] .topic-note-node-head textarea,
:root[data-theme="dark"] .topic-part-bubble {
  background: #111b2a;
  border-color: #34475d;
}

:root[data-theme="dark"] .topic-note-node.has-parts {
  background: linear-gradient(180deg, rgba(39, 96, 116, 0.42), #202d3c);
  border-color: #3e6475;
}

:root[data-theme="dark"] .topic-note-node.is-direct {
  background: linear-gradient(180deg, rgba(224, 177, 47, 0.18), #202d3c);
  border-color: #6f5e2f;
}

:root[data-theme="dark"] .topic-dialog-stats span,
:root[data-theme="dark"] .topic-note-kind {
  color: #fff4cc;
  background: rgba(224, 177, 47, 0.14);
  border-color: #6f5e2f;
}

:root[data-theme="dark"] .topic-part-bubble span {
  color: #fff4cc;
  background: rgba(224, 177, 47, 0.18);
}

:root[data-theme="dark"] .semester-filter span,
:root[data-theme="dark"] .topic-flow-kicker {
  color: #b9c8d8;
}

:root[data-theme="dark"] .topic-relation-label {
  color: #fff4cc;
  background: rgba(224, 177, 47, 0.18);
}

:root[data-theme="dark"] .subtopic-card::before {
  border-color: var(--accent);
}

:root[data-theme="dark"] .part-chip-list::before {
  border-color: #44586f;
}

:root[data-theme="dark"] .results-header,
:root[data-theme="dark"] .results-grid {
  color: var(--ink);
  background: #172231;
  border-color: #34475d;
}

:root[data-theme="dark"] .results-header .eyebrow {
  color: #ffe08a;
}

:root[data-theme="dark"] .results-header h2,
:root[data-theme="dark"] .result-editor > span,
:root[data-theme="dark"] .suggestion-card p,
:root[data-theme="dark"] .quality-strip strong {
  color: var(--ink);
}

:root[data-theme="dark"] .suggestion-card {
  color: var(--ink);
  background: #172231 !important;
  border-color: #34475d;
}

:root[data-theme="dark"] .suggestion-card.active {
  color: var(--ink);
  background: #18303b !important;
  border-color: var(--mint);
  box-shadow: inset 0 0 0 1px rgba(119, 201, 189, 0.18);
}

:root[data-theme="dark"] .suggestion-card-header strong {
  color: #ffe08a;
}

:root[data-theme="dark"] .suggestion-card-header button,
:root[data-theme="dark"] .tool-buttons button {
  color: var(--ink);
  background: #182436;
  border-color: #34475d;
}

:root[data-theme="dark"] .suggestion-card-header button:hover,
:root[data-theme="dark"] .tool-buttons button:hover {
  border-color: var(--accent);
  background: #213147;
}

:root[data-theme="dark"] .editor-panel {
  color: var(--ink);
  background: #172231 !important;
  border-color: #34475d;
}

:root[data-theme="dark"] #resultText {
  color: var(--ink);
  background: #111b2a;
  border-color: #34475d;
}

:root[data-theme="dark"] .quality-strip div {
  color: var(--ink);
  background: #202d3c;
  border-color: #34475d;
}

:root[data-theme="dark"] .quality-strip span {
  color: #b9c8d8;
}

@media (max-width: 1180px) {
  .control-board {
    grid-template-columns: 1fr;
  }

  .results-grid {
    grid-template-columns: 1fr;
  }

  .editor-panel {
    position: static;
  }
}

@media (max-width: 760px) {
  .app-shell {
    width: calc(100% - 20px);
    padding: 12px 0;
  }

  .hero-bar,
  .header-tools,
  .results-header,
  .app-page-heading,
  .section-title.with-action,
  .dictation-topline,
  .dictation-settings {
    align-items: stretch;
    flex-direction: column;
  }

  .dictation-settings > label,
  .dictation-settings .primary {
    width: 100%;
  }

  .app-card {
    flex-direction: column;
  }

  .gradebook-toolbar,
  .gradebook-actions,
  .class-toolbar,
  .subject-toolbar,
  .matrix-topic-bar,
  .matrix-topic-actions,
  .gradebook-subnav,
  .inline-form {
    align-items: stretch;
    flex-direction: column;
  }

  .semester-filter {
    width: 100%;
  }

  .topic-workspace-head,
  .topic-note-node-head {
    grid-template-columns: 1fr;
  }

  .topic-note-node-head .topic-semester-select,
  .topic-note-node-head .danger-icon-button {
    grid-column: auto;
    grid-row: auto;
    justify-self: start;
  }

  .topic-note-kind {
    grid-column: auto;
    grid-row: auto;
  }

  .topic-board-rail,
  .topic-note-cloud {
    grid-template-columns: 1fr;
  }

  .tool-buttons {
    display: grid;
    grid-template-columns: 1fr;
  }
}

@media (hover: none) and (pointer: coarse) {
  button,
  input,
  select,
  textarea {
    font-size: 16px;
  }

  button,
  .icon-action,
  .danger-icon-button,
  .class-manage-icon,
  .class-delete-button,
  .subject-edit-button,
  .subject-delete-button {
    min-height: 46px;
  }

  .grade-select,
  .computed-grade,
  .compound-grade-cell button {
    min-height: 40px;
  }
}

@media (max-width: 1180px) and (min-width: 761px) {
  .app-shell {
    width: min(100% - 28px, 1080px);
  }
}

@media (max-width: 900px) {
  .admin-user-card {
    grid-template-columns: 1fr 1fr;
  }

  .admin-user-identity,
  .admin-app-choice {
    grid-column: 1 / -1;
  }

  .admin-app-choice {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-bar {
    align-items: flex-start;
  }

  .hero-title-row {
    align-items: center;
    flex: 1 1 auto;
  }

  .hero-title-row h1 {
    font-size: clamp(1.8rem, 6vw, 2.7rem);
  }

  .header-tools {
    flex-shrink: 0;
  }

  .class-card,
  .subject-card {
    min-height: 110px;
  }

  .gradebook-table-wrap {
    max-height: 72vh;
    overflow: auto;
    overscroll-behavior: contain;
  }

  .gradebook-table {
    min-width: 860px;
  }

  .modal-backdrop {
    align-items: start;
    padding: 14px;
    overflow: auto;
  }
}

@media (max-width: 760px) {
  .hero-bar {
    flex-direction: row;
    align-items: center;
    gap: 10px;
  }

  .hero-title-row {
    min-width: 0;
    gap: 10px;
  }

  .hero-title-row h1 {
    font-size: clamp(1.55rem, 8vw, 2.15rem);
    overflow-wrap: anywhere;
  }

  .header-tools {
    width: auto;
    display: grid;
    grid-template-columns: auto auto;
    gap: 8px;
  }

  .header-home-button {
    width: 46px;
    height: 46px;
    min-height: 46px;
    border-radius: 14px;
  }

  .header-home-button svg {
    width: 26px;
    height: 26px;
  }

  .theme-toggle {
    width: 58px;
  }

  .app-card {
    min-height: 0;
    padding: 18px;
    flex-direction: row;
    align-items: flex-start;
  }

  .app-icon {
    width: 58px;
    height: 58px;
    flex: 0 0 auto;
  }

  .app-card-copy strong {
    font-size: 1.35rem;
  }

  .class-card,
  .subject-card {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    min-height: 94px;
    padding: 12px;
  }

  .class-card-actions,
  .subject-card-actions {
    flex-direction: column;
    gap: 8px;
  }

  .gradebook-toolbar {
    gap: 10px;
  }

  .gradebook-table-wrap {
    max-height: none;
    margin-inline: -14px;
    padding: 12px;
    overflow: visible;
    border-left: 0;
    border-right: 0;
    border-radius: 0;
    background: transparent;
  }

  .gradebook-table {
    display: none;
  }

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

  .mobile-matrix-card {
    display: grid;
    gap: 12px;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 14px;
    background: var(--surface);
    box-shadow: var(--shadow-soft);
  }

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

  .mobile-matrix-card-head span,
  .mobile-note-row small,
  .mobile-note-row > div > span {
    display: block;
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 900;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .mobile-matrix-card-head strong {
    display: block;
    margin-top: 3px;
    font-size: 1.18rem;
  }

  .mobile-average-pill {
    min-width: 72px;
    border: 1px solid #e0c15d;
    border-radius: 14px;
    padding: 8px 10px;
    text-align: center;
    background: var(--accent-soft);
  }

  .mobile-average-pill strong {
    margin: 0;
    font-size: 1.08rem;
  }

  .mobile-matrix-groups {
    display: grid;
    gap: 12px;
  }

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

  .mobile-matrix-group h3 {
    margin: 0;
    border-radius: 12px;
    padding: 9px 11px;
    color: var(--accent-dark);
    background: var(--accent-soft);
    font-size: 0.98rem;
  }

  .mobile-note-list {
    display: grid;
    gap: 8px;
  }

  .mobile-note-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 10px;
    background: var(--soft);
  }

  .mobile-note-row strong {
    display: block;
    margin-top: 2px;
    overflow-wrap: anywhere;
  }

  .mobile-note-row .grade-select {
    width: 94px;
    min-height: 44px;
  }

  .mobile-note-row .compound-grade-cell {
    justify-content: end;
  }

  .mobile-note-row .compound-grade-cell button {
    min-width: 54px;
    min-height: 42px;
  }

  .mobile-empty-note {
    margin: 0;
    border: 1px dashed var(--line);
    border-radius: 12px;
    padding: 12px;
    color: var(--muted);
    font-weight: 800;
  }

  .topic-board-rail {
    display: flex;
    overflow-x: auto;
    padding-bottom: 12px;
    scroll-snap-type: x mandatory;
  }

  .topic-area-card {
    min-width: 220px;
    scroll-snap-align: start;
  }

  .topic-note-cloud {
    grid-template-columns: 1fr;
  }

  .topic-note-node,
  .topic-empty-note {
    min-height: 0;
  }

  .db-save-toast {
    top: 10px;
    width: calc(100vw - 24px);
    justify-content: center;
    border-radius: 14px;
  }
}

@media (max-width: 520px) {
  .login-card {
    gap: 18px;
    padding: 24px 20px;
  }

  .login-intro h1 {
    font-size: 1.75rem;
  }

  .admin-toolbar,
  .admin-section-head {
    align-items: stretch;
    flex-direction: column;
  }

  .admin-user-card,
  .blocked-ip-card,
  .calculator-grid,
  .admin-app-choice,
  .create-user-modal .admin-app-choice {
    grid-template-columns: 1fr;
  }

  .blocked-ip-card {
    align-items: stretch;
  }

  .calculator-hero,
  .calculator-table-head {
    align-items: stretch;
    flex-direction: column;
  }

  .calculator-actions {
    justify-content: stretch;
  }

  .calculator-actions button,
  .calculator-table-head button {
    width: 100%;
  }

  .scale-row {
    grid-template-columns: 1fr;
  }

  .app-shell {
    width: 100%;
    padding: 10px;
  }

  .hero-bar {
    margin-bottom: 12px;
  }

  .hero-title-row h1 {
    font-size: 1.62rem;
    line-height: 1.05;
  }

  .theme-toggle {
    width: 52px;
    height: 36px;
    min-height: 36px;
  }

  .theme-toggle-track {
    width: 42px;
  }

  .theme-toggle[aria-pressed="true"] .theme-toggle-knob {
    transform: translateX(16px);
  }

  .home-intro h2 {
    font-size: 1.45rem;
  }

  .app-card {
    gap: 12px;
    padding: 14px;
  }

  .app-card-copy span:last-child {
    font-size: 0.95rem;
  }

  .app-icon {
    width: 50px;
    height: 50px;
  }

  .app-icon svg {
    width: 32px;
    height: 32px;
  }

  .class-card,
  .subject-card {
    grid-template-columns: 1fr;
  }

  .class-card-actions,
  .subject-card-actions {
    flex-direction: row;
    justify-content: flex-start;
  }

  .modal-backdrop {
    padding: 8px;
  }

  .part-grade-row {
    grid-template-columns: 1fr;
  }

  .part-grade-modal .grade-select {
    width: 100%;
  }

  .gradebook-table {
    display: none;
  }

  .mobile-matrix-card {
    border-radius: 14px;
    padding: 12px;
  }

  .mobile-matrix-card-head {
    align-items: stretch;
  }

  .mobile-note-row {
    grid-template-columns: 1fr;
  }

  .mobile-note-row .grade-select,
  .mobile-note-row .compound-grade-cell,
  .mobile-note-row .compound-grade-cell button {
    width: 100%;
  }

  .mobile-note-row .compound-grade-cell {
    display: grid;
    grid-template-columns: auto 1fr;
  }

  .mobile-note-row .computed-grade {
    min-height: 42px;
  }
}

@media print {
  @page {
    size: A4 landscape;
    margin: 10mm;
  }

  body {
    background: #fff;
  }

  .hero-bar,
  .home-view,
  .app-page-heading,
  .control-board,
  .results-header,
  .suggestions-list,
  .quality-strip {
    display: none;
  }

  .app-shell,
  .results-shell,
  .results-grid,
  .editor-panel {
    width: 100%;
    min-height: auto;
    margin: 0;
    padding: 0;
    border: 0;
    box-shadow: none;
    display: block;
  }

  textarea {
    min-height: 0;
    border: 0;
  }

}