:root {
  color-scheme: light;
  --bg: #f5f7f5;
  --surface: #ffffff;
  --surface-2: #eef4f1;
  --ink: #17212b;
  --muted: #667385;
  --line: #d8e0dc;
  --line-strong: #afbbb5;
  --blue: #2f6f9f;
  --green: #2f7c5f;
  --teal: #287f88;
  --amber: #b87915;
  --rose: #b34d5e;
  --violet: #6f5aa5;
  --slate: #536170;
  --shadow: 0 18px 42px rgba(29, 41, 57, 0.1);
  --radius: 8px;
  font-family:
    "Aptos",
    "Avenir Next",
    "Segoe UI",
    sans-serif;
  color: var(--ink);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(47, 111, 159, 0.05), transparent 360px),
    var(--bg);
}

button,
select,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

img,
video,
iframe {
  max-width: 100%;
}

.fatal-state {
  width: min(720px, calc(100vw - 32px));
  margin: 12vh auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.auth-page {
  display: grid;
  position: relative;
  isolation: isolate;
  grid-template-columns: minmax(0, 1fr) minmax(450px, 540px);
  gap: 32px;
  width: 100%;
  min-height: 100svh;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  padding: 40px 28px;
  overflow: hidden;
  background: #eaf1ef;
}

.auth-page::before,
.auth-page::after {
  display: none;
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
}

.auth-page::before {
  z-index: -2;
  background: none;
}

.auth-page::after {
  z-index: -1;
  background: none;
}

.auth-background-video {
  position: absolute;
  inset: 0;
  z-index: -3;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
  filter: none;
  opacity: 1;
}

.auth-card,
.access-card {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}

.auth-card,
.access-card {
  padding: 28px;
}

.auth-card {
  grid-column: 2;
  border-color: rgba(255, 255, 255, 0.68);
  background: #fff;
  box-shadow: 0 24px 70px rgba(23, 33, 43, 0.18);
  transform: translateX(-54px);
}

.auth-card-header {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  margin-bottom: 22px;
}

.auth-card-header img {
  width: 84px;
  height: 84px;
  border: 1px solid rgba(47, 124, 95, 0.18);
  border-radius: var(--radius);
  object-fit: cover;
  background: #fff;
  box-shadow: 0 12px 28px rgba(23, 33, 43, 0.12);
}

.auth-card-header h1,
.auth-card h2,
.access-card h1 {
  margin: 2px 0 0;
  line-height: 1.1;
  letter-spacing: 0;
}

.auth-card-header h1 {
  max-width: none;
  font-size: 1.95rem;
}

.auth-route-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.auth-route-row code,
.role-matrix code {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 4px 8px;
  background: #f3f8fb;
  color: #245f86;
  font-size: 0.78rem;
}

.auth-role-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 22px;
}

.auth-role-grid button {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
}

.auth-role-grid button {
  min-height: 58px;
  padding: 12px;
  font-weight: 780;
}

.auth-role-grid button.is-active {
  border-color: rgba(47, 124, 95, 0.46);
  background: #e8f4ed;
  color: #1d5c45;
}

.google-login-panel {
  display: grid;
  gap: 12px;
}

.google-button-host {
  display: grid;
  width: 100%;
  min-height: 44px;
  align-items: center;
}

.google-button-host > div {
  width: 100% !important;
}

.google-button-host iframe {
  max-width: 100%;
}

.google-login-note {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  background: #fbfcfb;
  color: var(--muted);
  line-height: 1.45;
}

.auth-error {
  margin: 0;
  border: 1px solid rgba(179, 77, 94, 0.35);
  border-radius: var(--radius);
  padding: 10px;
  background: #fff0f2;
  color: #8d3444;
  line-height: 1.4;
}

.session-badge span,
.staff-table small {
  color: var(--muted);
}

.access-card {
  grid-column: 1 / -1;
  width: min(760px, 100%);
  justify-self: center;
}

.access-card.is-inline {
  width: 100%;
}

.session-badge {
  display: grid;
  min-height: 40px;
  min-width: 0;
  align-content: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 6px 10px;
  background: #fbfcfb;
}

.session-badge strong,
.session-badge span {
  display: block;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-badge strong {
  font-size: 0.86rem;
}

.lms-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.lms-shell.is-player-focus {
  grid-template-columns: minmax(0, 1fr);
}

.lms-shell.is-player-focus .app-sidebar,
.lms-shell.is-player-focus .top-bar {
  display: none;
}

.lms-shell.is-player-focus .main-surface {
  padding: 16px 20px;
}

.app-sidebar {
  position: sticky;
  top: 0;
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 22px;
  height: 100vh;
  border-right: 1px solid var(--line);
  padding: 18px;
  background: #fbfcfb;
}

.brand-row {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
}

.brand-row img {
  width: 52px;
  height: 52px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  object-fit: contain;
  background: #fff8d8;
}

.brand-row strong,
.brand-row span {
  display: block;
}

.brand-row strong {
  font-size: 1.05rem;
}

.brand-row span,
.learner-strip p,
.unit-card small,
.player-step small,
.material-row small,
.asset-row small,
.compact-list span {
  color: var(--muted);
}

.main-nav {
  display: grid;
  gap: 8px;
}

.nav-button,
.unit-card,
.player-step,
.plan-list button,
.path-list button,
.learning-path-preview button,
.choice-button,
.flashcard,
.rating-button,
.primary-button,
.secondary-button,
.ghost-button,
.inline-button {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  transition:
    border-color 150ms ease,
    background 150ms ease,
    box-shadow 150ms ease,
    transform 150ms ease;
}

.nav-button:hover,
.unit-card:hover,
.player-step:hover,
.plan-list button:hover,
.path-list button:hover,
.learning-path-preview button:hover,
.choice-button:hover,
.rating-button:hover,
.primary-button:hover,
.secondary-button:hover,
.ghost-button:hover,
.inline-button:hover {
  border-color: var(--line-strong);
  box-shadow: 0 8px 22px rgba(29, 41, 57, 0.08);
  transform: translateY(-1px);
}

.nav-button {
  display: flex;
  min-height: 44px;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  text-align: left;
}

.nav-button span {
  font-weight: 760;
}

.nav-button small {
  color: var(--muted);
  font-weight: 650;
}

.nav-button.is-active {
  border-color: rgba(47, 111, 159, 0.35);
  background: #e8f1f7;
}

.learner-strip {
  align-self: end;
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: var(--surface);
}

.learner-strip h2,
.learner-strip p {
  margin: 0;
}

.mini-metrics {
  display: grid;
  gap: 8px;
}

.mini-metrics span {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  padding-top: 8px;
  color: var(--muted);
}

.mini-metrics strong {
  color: var(--ink);
}

.main-surface {
  min-width: 0;
  padding: 22px;
}

.top-bar {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
}

.top-bar h1,
.top-bar p,
.section-head h2,
.section-head p,
.today-panel h2,
.summary-panel h3,
.unit-detail h2,
.unit-detail h3,
.asset-header h2,
.asset-header p,
.library-panel h2,
.summary-hero h2,
.summary-hero p {
  margin: 0;
}

.top-bar h1 {
  margin-top: 3px;
  font-size: clamp(1.45rem, 2.2vw, 2.15rem);
  line-height: 1.1;
  letter-spacing: 0;
}

.eyebrow {
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 820;
  letter-spacing: 0;
  text-transform: uppercase;
}

.top-actions,
.asset-header-actions,
.action-row,
.button-group,
.rating-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.primary-button,
.secondary-button,
.ghost-button,
.inline-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 9px 13px;
  font-weight: 760;
  line-height: 1.1;
  text-align: center;
}

.primary-button {
  border-color: #1f5a83;
  background: var(--blue);
  color: #ffffff;
}

.secondary-button {
  border-color: #b9c9d4;
  background: #f3f8fb;
}

.ghost-button {
  background: transparent;
}

.inline-button {
  min-height: 34px;
  white-space: nowrap;
}

.full-width {
  width: 100%;
}

.dashboard-layout,
.course-layout,
.player-layout,
.summary-columns {
  display: grid;
  gap: 18px;
}

.dashboard-layout {
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.8fr);
}

.today-panel,
.summary-panel,
.wide-panel,
.unit-detail,
.library-panel,
.asset-viewer,
.lesson-steps,
.summary-hero,
.metric-tile {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
}

.today-panel,
.wide-panel,
.unit-detail,
.library-panel,
.asset-viewer,
.summary-hero {
  padding: 18px;
}

.summary-panel,
.lesson-steps,
.metric-tile {
  padding: 16px;
}

.dashboard-side {
  display: grid;
  gap: 18px;
  align-content: start;
}

.section-head,
.asset-header,
.summary-hero {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  justify-content: space-between;
}

.section-head h2,
.today-panel h2,
.unit-detail h2,
.asset-header h2,
.library-panel h2,
.summary-hero h2 {
  font-size: clamp(1.25rem, 2vw, 1.7rem);
  line-height: 1.15;
  letter-spacing: 0;
}

.lead {
  max-width: 850px;
  color: #344255;
  font-size: 1rem;
  line-height: 1.6;
}

.status-pill {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  border-radius: 999px;
  padding: 5px 10px;
  white-space: nowrap;
  font-size: 0.78rem;
  font-weight: 780;
}

.status-pill.is-ready {
  background: #e6f4eb;
  color: #236a4c;
}

.status-pill.is-pending {
  background: #f8ead8;
  color: #8a560e;
}

.status-pill.is-enrichment {
  background: #eee9f8;
  color: #5c458d;
}

.plan-list,
.path-list,
.learning-path-preview {
  display: grid;
  gap: 8px;
  margin: 18px 0;
  padding: 0;
  list-style: none;
}

.plan-list button,
.path-list button,
.learning-path-preview button,
.player-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  width: 100%;
  min-height: 58px;
  padding: 10px;
  text-align: left;
}

.plan-list strong,
.plan-list small,
.path-list strong,
.path-list small,
.learning-path-preview strong,
.learning-path-preview small,
.player-step strong,
.player-step small,
.material-row strong,
.material-row small,
.asset-row strong,
.asset-row small {
  display: block;
}

.plan-list em,
.path-list em,
.learning-path-preview em,
.player-step em,
.material-row em,
.asset-row em,
.unit-card em {
  color: var(--muted);
  font-size: 0.78rem;
  font-style: normal;
  font-weight: 720;
}

.asset-type {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 30px;
  border-radius: 6px;
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 820;
  letter-spacing: 0;
  line-height: 1;
}

.type-blue {
  background: var(--blue);
}

.type-green {
  background: var(--green);
}

.type-amber {
  background: var(--amber);
}

.type-teal {
  background: var(--teal);
}

.type-slate {
  background: var(--slate);
}

.type-rose {
  background: var(--rose);
}

.type-violet {
  background: var(--violet);
}

.type-indigo {
  background: #4f46e5;
}

.type-pending {
  background: #9f6a22;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.support-panel,
.content-workflow {
  min-width: 0;
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
}

.support-context {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.support-context span,
.adapter-pill,
.notification-badge {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #eef6f0;
  color: #245d47;
  font-size: 0.78rem;
  font-weight: 760;
}

.support-context span,
.adapter-pill {
  padding: 6px 10px;
}

.notification-badge {
  display: inline-flex;
  min-height: 40px;
  min-width: 0;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
}

.notification-badge span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.notification-badge strong {
  display: inline-grid;
  min-width: 24px;
  min-height: 24px;
  place-items: center;
  border-radius: 999px;
  background: var(--blue);
  color: #ffffff;
}

.support-input {
  display: grid;
  gap: 6px;
  margin: 12px 0;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 760;
}

.support-input textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  resize: vertical;
  color: var(--ink);
  line-height: 1.45;
}

.support-input.is-compact {
  margin: 10px 0;
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.support-column {
  min-width: 0;
}

.support-column h3 {
  margin: 0 0 10px;
  font-size: 0.95rem;
}

.support-card,
.ops-card,
.task-row {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: #fbfcfb;
}

.support-card + .support-card,
.ops-card + .ops-card {
  margin-top: 10px;
}

.support-card strong,
.support-card span,
.support-card p,
.support-card small,
.ops-card strong,
.ops-card span,
.ops-card p,
.ops-card small,
.task-row span,
.task-row strong,
.task-row p {
  display: block;
  overflow-wrap: anywhere;
}

.support-card span,
.ops-card span,
.task-row span {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 760;
}

.support-card p,
.ops-card p,
.task-row p {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.support-card small,
.ops-card small {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.35;
}

.support-card.is-alert,
.ops-card.is-alert {
  border-color: rgba(179, 77, 94, 0.35);
  background: #fff5f6;
}

.support-card.is-new {
  border-color: rgba(47, 111, 159, 0.35);
  background: #f3f8fb;
}

.task-list,
.ops-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.task-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 54px;
  gap: 8px 12px;
  align-items: center;
}

.task-row strong {
  color: var(--muted);
  font-size: 1.15rem;
  text-align: right;
}

.task-row p {
  grid-column: 1 / -1;
}

.task-row.is-active {
  border-color: rgba(47, 111, 159, 0.35);
  background: #f3f8fb;
}

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

.ops-card-head strong {
  text-align: right;
}

.subject-overview {
  margin-top: 18px;
}

.subject-grid,
.subject-unit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.subject-card {
  display: grid;
  gap: 8px;
  align-content: start;
  min-height: 148px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: var(--surface);
  color: var(--ink);
  text-align: left;
}

.subject-card:hover {
  border-color: var(--line-strong);
  box-shadow: 0 8px 22px rgba(29, 41, 57, 0.08);
  transform: translateY(-1px);
}

.subject-card.is-selected {
  border-color: rgba(47, 111, 159, 0.45);
  background: #eef7fb;
}

.subject-card span,
.subject-card small {
  color: var(--muted);
}

.subject-card strong {
  font-size: 1.02rem;
  line-height: 1.2;
}

.mastery-list {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.mastery-row {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(120px, 220px) 48px;
  gap: 12px;
  align-items: center;
}

.mastery-row strong,
.mastery-row span {
  display: block;
}

.mastery-row span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.86rem;
}

.mastery-row em {
  color: var(--ink);
  font-style: normal;
  font-weight: 760;
  text-align: right;
}

.bar {
  overflow: hidden;
  height: 10px;
  border-radius: 999px;
  background: #e6ece9;
}

.bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--blue), var(--green));
}

.mistake-list,
.activity-list,
.compact-list,
.material-list,
.asset-table {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.mistake-list li,
.activity-list li,
.compact-list li {
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.mistake-list strong,
.mistake-list span,
.mistake-list p,
.activity-list time,
.activity-list strong,
.activity-list span {
  display: block;
}

.mistake-list p,
.activity-list span {
  margin: 4px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.activity-list time {
  color: var(--muted);
  font-size: 0.76rem;
}

.empty-note,
.loading-note,
.notice-line {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.notice-line {
  border-left: 4px solid var(--violet);
  padding: 10px 12px;
  background: #f4f1fa;
  color: #4e3c78;
}

.course-layout {
  grid-template-columns: minmax(280px, 380px) minmax(0, 1fr);
  align-items: start;
}

.unit-rail {
  display: grid;
  gap: 18px;
}

.track-section h2 {
  margin: 0 0 8px;
  color: #344255;
  font-size: 0.95rem;
}

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

.unit-card {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  min-height: 74px;
  padding: 10px;
  text-align: left;
}

.unit-card.is-selected {
  border-color: rgba(47, 111, 159, 0.45);
  background: #eef7fb;
}

.unit-number {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: var(--surface-2);
  font-weight: 820;
}

.unit-card em {
  grid-column: 2;
}

.unit-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0;
}

.unit-facts div {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: #fbfcfb;
}

.unit-facts dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 760;
}

.unit-facts dd {
  margin: 4px 0 0;
  font-weight: 760;
}

.unit-start-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(150px, 0.4fr);
  gap: 16px;
  margin: 22px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
  background: linear-gradient(90deg, rgba(47, 111, 159, 0.05), transparent);
}

.unit-start-copy {
  display: grid;
  gap: 10px;
  align-content: start;
}

.unit-start-copy h3,
.unit-start-copy p {
  margin: 0;
}

.unit-start-copy h3 {
  font-size: clamp(1.35rem, 2.1vw, 1.9rem);
  line-height: 1.12;
}

.unit-start-copy p {
  max-width: 680px;
  color: #344255;
  line-height: 1.55;
}

.unit-start-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.unit-progress-card {
  display: grid;
  gap: 4px;
  align-content: center;
  border-left: 1px solid var(--line);
  padding-left: 16px;
}

.unit-progress-card span,
.unit-progress-card small {
  color: var(--muted);
}

.unit-progress-card strong {
  font-size: 2rem;
  line-height: 1;
}

.learning-path-preview {
  grid-column: 1 / -1;
  margin: 2px 0 0;
}

.learning-part-preview {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 10px;
  margin-top: 2px;
}

.learning-part-group {
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  background: #fbfcfb;
}

.learning-part-title {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 8px;
  align-items: start;
}

.learning-part-title > span {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: #244b63;
  color: #fff;
  font-size: 0.78rem;
  font-weight: 820;
}

.learning-part-title strong,
.learning-part-title small,
.learning-part-title em {
  display: block;
}

.learning-part-title small,
.learning-part-title em {
  color: var(--muted);
  font-size: 0.78rem;
  font-style: normal;
  font-weight: 720;
}

.learning-part-group ol {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.learning-part-group button {
  display: grid;
  grid-template-columns: 28px auto minmax(0, 1fr) auto;
  gap: 10px;
  align-items: start;
  width: 100%;
  min-height: 54px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  background: rgba(255, 255, 255, 0.86);
  color: var(--ink);
  text-align: left;
}

.learning-path-preview button {
  grid-template-columns: 28px auto minmax(0, 1fr) auto;
  min-height: 54px;
  background: rgba(255, 255, 255, 0.82);
}

.path-index {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: #e4edf3;
  color: #245f86;
  font-size: 0.78rem;
  font-weight: 820;
}

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

.material-row.is-pending,
.asset-row.is-pending {
  background: #fff9ef;
}

.pending-summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  margin-top: 12px;
  border: 1px solid #efd9b5;
  border-radius: var(--radius);
  padding: 12px;
  background: #fff9ef;
}

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

.pending-summary span {
  margin-top: 3px;
  color: var(--muted);
  line-height: 1.45;
}

.reference-drawer {
  margin-top: 18px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.reference-drawer summary {
  cursor: pointer;
  color: #344255;
  font-weight: 780;
}

.reference-drawer > p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.player-layout {
  grid-template-columns: minmax(250px, 330px) minmax(0, 1fr);
  align-items: start;
}

.player-layout.is-focus-mode {
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.player-layout.is-focus-mode .lesson-steps,
.player-layout.is-focus-mode .support-panel {
  display: none;
}

.player-layout.is-focus-mode .asset-viewer {
  width: 100%;
  min-height: calc(100vh - 32px);
  border-color: #cbd8d2;
  box-shadow: none;
}

.player-layout.is-focus-mode .asset-header {
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
}

.lesson-steps {
  position: sticky;
  top: 22px;
  display: grid;
  gap: 14px;
  max-height: calc(100vh - 44px);
  overflow: auto;
}

.step-head {
  display: grid;
  gap: 6px;
}

.step-head label,
.filter-label span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 760;
}

select {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  min-height: 40px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 10px;
  background: var(--surface);
  color: var(--ink);
  text-overflow: ellipsis;
  white-space: nowrap;
}

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

.unit-path-summary {
  display: grid;
  gap: 8px;
  border: 1px solid #dce7de;
  border-radius: var(--radius);
  padding: 12px;
  background: #f6faf7;
}

.unit-path-summary p,
.unit-path-summary strong {
  margin: 0;
}

.unit-path-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
}

.unit-path-metrics span {
  display: grid;
  gap: 2px;
  border: 1px solid #dfe8e1;
  border-radius: 8px;
  padding: 7px;
  background: #fff;
}

.unit-path-metrics b {
  color: #245f86;
  font-size: 1rem;
  line-height: 1;
}

.unit-path-metrics small {
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.15;
}

.step-group {
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  background: #fbfcfb;
}

.step-group.is-lesson-pack-group {
  border-color: #d8d1eb;
  background: #f8f6fc;
}

.step-group-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: start;
}

.step-group-head strong,
.step-group-head small {
  display: block;
}

.step-group-head small,
.step-group-head em {
  color: var(--muted);
  font-size: 0.78rem;
  font-style: normal;
  font-weight: 720;
}

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

.lesson-bundle-list {
  display: grid;
  gap: 10px;
}

.lesson-bundle-card {
  display: grid;
  gap: 8px;
  border: 1px solid #e0d9f0;
  border-radius: var(--radius);
  padding: 8px;
  background: #fff;
}

.lesson-bundle-card.is-active {
  border-color: rgba(47, 111, 159, 0.45);
  box-shadow: inset 3px 0 0 rgba(47, 111, 159, 0.45);
}

.lesson-bundle-card .player-step {
  grid-template-columns: 30px auto minmax(0, 1fr);
  border-color: transparent;
  background: #f8f6fc;
}

.lesson-bundle-card .player-step > em {
  grid-column: 3 / -1;
  justify-self: start;
}

.lesson-bundle-card .player-step:hover {
  border-color: #d8d1eb;
}

.lesson-bundle-parts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 6px;
}

.lesson-part-button {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 7px;
  align-items: start;
  min-width: 0;
  min-height: 52px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px;
  background: #fbfcfb;
  color: var(--ink);
  text-align: left;
}

.lesson-part-button:hover {
  border-color: var(--line-strong);
  box-shadow: 0 8px 18px rgba(29, 41, 57, 0.06);
}

.lesson-part-button.is-active {
  border-color: rgba(47, 111, 159, 0.5);
  background: #eef7fb;
}

.lesson-part-button.is-pending {
  border-color: #efd9b5;
  background: #fff9ef;
}

.lesson-part-button strong,
.lesson-part-button small {
  display: block;
}

.lesson-part-button small {
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.25;
}

.lesson-part-button em {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 0.72rem;
  font-style: normal;
  font-weight: 760;
}

.player-step {
  grid-template-columns: 30px auto minmax(0, 1fr) auto;
  align-items: start;
  background: rgba(255, 255, 255, 0.92);
}

.player-step.is-active {
  border-color: rgba(47, 111, 159, 0.45);
  background: #eef7fb;
}

.player-step.is-lesson-pack {
  border-color: #e0d9f0;
}

.step-index {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: #e4edf3;
  color: #245f86;
  font-size: 0.76rem;
  font-weight: 820;
}

.step-part-chips {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.part-chip {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  min-height: 22px;
  border: 1px solid #dde6ec;
  border-radius: 999px;
  padding: 2px 7px;
  background: #fff;
  color: #344255;
  font-size: 0.72rem;
  font-weight: 740;
  line-height: 1.2;
  white-space: nowrap;
}

.asset-bundle-strip {
  margin-top: 10px;
}

.asset-header {
  min-width: 0;
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
}

.asset-header > div,
.step-head,
.step-list,
.step-group,
.step-group-list {
  min-width: 0;
}

.media-frame,
.audio-frame,
.pdf-frame,
.image-frame,
.text-reader,
.quiz-shell,
.flashcard-shell,
.pending-view {
  margin-top: 16px;
}

.media-frame,
.pdf-frame,
.image-frame,
.text-reader,
.pending-view {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f9fbfa;
}

.media-frame video {
  display: block;
  width: 100%;
  max-height: 58vh;
  background: #111827;
}

.youtube-frame {
  aspect-ratio: 16 / 9;
  background: #111827;
}

.youtube-frame iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.media-pending {
  min-height: 260px;
  display: grid;
  place-items: center;
  padding: 28px;
  text-align: center;
}

.media-pending > div {
  max-width: 560px;
}

.media-pending h3 {
  margin: 10px 0 8px;
  font-size: 1.2rem;
}

.media-pending p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.media-pending small {
  display: block;
  margin-top: 12px;
  color: var(--muted);
}

.status-chip {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: #fff4d6;
  color: #7a4d00;
  font-size: 0.78rem;
  font-weight: 800;
}

.audio-frame {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  background: #f3f8fb;
}

.audio-frame audio {
  width: 100%;
}

.pdf-frame iframe {
  display: block;
  width: 100%;
  height: min(70vh, 760px);
  border: 0;
}

.player-layout.is-focus-mode .pdf-frame iframe {
  height: min(calc(100vh - 250px), 900px);
  min-height: 620px;
}

.pdf-frame {
  position: relative;
  min-height: 360px;
}

.pdf-frame.is-loading iframe {
  opacity: 0.08;
}

.material-loading {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  place-items: center;
  gap: 8px;
  padding: 20px;
  background: rgba(249, 251, 250, 0.94);
  text-align: center;
}

.material-loading strong,
.material-loading small {
  display: block;
}

.material-loading small {
  max-width: 520px;
  color: var(--muted);
  line-height: 1.45;
}

.pdf-frame.is-loaded .material-loading {
  display: none;
}

.loading-spinner {
  width: 34px;
  height: 34px;
  border: 3px solid #d8e0dc;
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: loading-spin 0.8s linear infinite;
}

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

.image-frame {
  display: grid;
  place-items: center;
  padding: 12px;
}

.image-frame img {
  display: block;
  width: 100%;
  max-height: 72vh;
  object-fit: contain;
  border-radius: 6px;
}

.player-layout.is-focus-mode .image-frame {
  padding: 8px;
}

.player-layout.is-focus-mode .image-frame img {
  max-height: calc(100vh - 230px);
}

.text-reader {
  max-height: 68vh;
  overflow: auto;
  padding: 20px;
}

.player-layout.is-focus-mode .text-reader {
  max-height: calc(100vh - 230px);
  padding: 24px 28px;
}

.text-reader h3,
.text-reader h4,
.text-reader p,
.text-reader ul {
  max-width: 860px;
  overflow-wrap: anywhere;
}

.player-layout.is-focus-mode .text-reader h3,
.player-layout.is-focus-mode .text-reader h4,
.player-layout.is-focus-mode .text-reader p,
.player-layout.is-focus-mode .text-reader ul {
  max-width: 980px;
}

.text-reader h3 {
  margin: 0 0 14px;
  font-size: 1.35rem;
}

.text-reader h4 {
  margin: 18px 0 8px;
  font-size: 1.05rem;
}

.text-reader p,
.text-reader li {
  color: #2d3a48;
  line-height: 1.65;
}

.asset-footer {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.86rem;
}

.asset-footer-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.asset-download {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  text-decoration: none;
}

.flashcard-empty {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fbff;
  padding: 16px;
}

.flashcard-empty strong,
.flashcard-empty p {
  margin: 0;
}

.flashcard-empty p {
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.55;
}

.pending-view {
  padding: 24px;
}

.pending-view h3,
.pending-view p {
  margin: 0;
}

.pending-view p {
  margin-top: 6px;
  color: var(--muted);
}

.quiz-topline,
.flashcard-topline {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.quiz-progress {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 5px;
  margin: 14px 0;
}

.quiz-progress button {
  height: 9px;
  border: 0;
  border-radius: 999px;
  background: #dce5e0;
}

.quiz-progress button.is-current {
  background: var(--blue);
}

.quiz-progress button.is-correct {
  background: var(--green);
}

.quiz-progress button.is-wrong {
  background: var(--rose);
}

.quiz-shell h3 {
  margin: 14px 0;
  font-size: clamp(1.1rem, 1.9vw, 1.45rem);
  line-height: 1.35;
}

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

.choice-button {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  min-height: 52px;
  padding: 9px 10px;
  text-align: left;
}

.choice-button span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: var(--surface-2);
  font-weight: 820;
}

.choice-button.is-correct {
  border-color: rgba(47, 124, 95, 0.55);
  background: #e8f5ee;
}

.choice-button.is-wrong {
  border-color: rgba(179, 77, 94, 0.55);
  background: #fff0f2;
}

.feedback-box {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
}

.feedback-box p {
  margin: 6px 0 0;
  line-height: 1.5;
}

.feedback-box small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
}

.feedback-box.is-correct {
  background: #e8f5ee;
}

.feedback-box.is-wrong {
  background: #fff0f2;
}

.flashcard-shell {
  display: grid;
  gap: 14px;
}

.flashcard {
  display: grid;
  gap: 12px;
  min-height: 260px;
  place-items: center;
  padding: 24px;
  text-align: center;
  background: #fbfcfb;
}

.flashcard span,
.flashcard strong,
.flashcard small {
  display: block;
}

.flashcard span {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 760;
  text-transform: uppercase;
}

.flashcard strong {
  max-width: 780px;
  font-size: clamp(1.35rem, 3vw, 2.1rem);
  line-height: 1.2;
}

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

.rating-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.rating-button {
  min-height: 44px;
  font-weight: 760;
}

.library-panel {
  min-height: 70vh;
}

.curriculum-layout {
  display: grid;
  gap: 18px;
}

.curriculum-hero {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  justify-content: space-between;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  background:
    linear-gradient(90deg, rgba(47, 111, 159, 0.08), rgba(47, 124, 95, 0.08)),
    var(--surface);
  box-shadow: var(--shadow);
}

.curriculum-hero h2 {
  margin: 4px 0 8px;
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  line-height: 1.12;
}

.curriculum-hero-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.curriculum-metrics,
.curriculum-grid {
  display: grid;
  gap: 14px;
}

.curriculum-metrics {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.curriculum-grid {
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.8fr);
  align-items: start;
}

.calendar-board,
.review-finding-list,
.coverage-table,
.quality-grid,
.annual-calendar-board,
.subject-brief-grid,
.production-rule-grid {
  display: grid;
  gap: 10px;
}

.annual-calendar-board {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 16px;
}

.annual-calendar-card {
  display: grid;
  gap: 12px;
  min-width: 0;
  border: 1px solid var(--line);
  border-left: 5px solid var(--blue);
  border-radius: var(--radius);
  padding: 14px;
  background: #fbfcfb;
}

.annual-calendar-card:nth-child(n + 10) {
  border-left-color: var(--amber);
  background: #fffaf0;
}

.annual-calendar-head {
  display: flex;
  gap: 10px;
  align-items: baseline;
  justify-content: space-between;
}

.annual-calendar-head strong {
  font-size: 1.12rem;
}

.annual-calendar-head span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 760;
  white-space: nowrap;
}

.annual-calendar-card dl {
  display: grid;
  gap: 8px;
  margin: 0;
}

.annual-calendar-card div {
  min-width: 0;
}

.annual-calendar-card dt,
.annual-calendar-card dd {
  margin: 0;
}

.annual-calendar-card dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 780;
}

.annual-calendar-card dd {
  margin-top: 2px;
  color: #344255;
  font-size: 0.88rem;
  line-height: 1.38;
}

.subject-brief-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 16px;
}

.subject-brief-card {
  display: grid;
  gap: 12px;
  min-width: 0;
  border: 1px solid var(--line);
  border-left: 5px solid var(--blue);
  border-radius: var(--radius);
  padding: 14px;
  background: #fbfcfb;
}

.subject-brief-card.priority-high {
  border-left-color: var(--rose);
}

.subject-brief-card.priority-medium {
  border-left-color: var(--green);
}

.subject-brief-head {
  display: grid;
  gap: 4px;
}

.subject-brief-head span,
.subject-brief-head em,
.subject-brief-stats dt,
.mini-pacing span {
  color: var(--muted);
  font-size: 0.8rem;
  font-style: normal;
  font-weight: 760;
}

.subject-brief-head strong {
  font-size: 1.08rem;
  line-height: 1.2;
}

.subject-brief-stats,
.mini-pacing {
  display: grid;
  gap: 8px;
}

.subject-brief-stats {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
}

.subject-brief-stats div,
.mini-pacing div {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px;
  background: var(--surface);
}

.subject-brief-stats dt,
.subject-brief-stats dd {
  margin: 0;
}

.subject-brief-stats dd,
.mini-pacing strong {
  display: block;
}

.mini-pacing {
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
}

.mini-pacing strong {
  margin-top: 3px;
  font-size: 0.82rem;
  line-height: 1.32;
}

.subject-brief-card p {
  margin: 0;
  color: #344255;
  line-height: 1.45;
}

.calendar-board {
  margin-top: 16px;
}

.calendar-command-center {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  gap: 12px;
  margin-top: 16px;
}

.calendar-now-card,
.calendar-service-stats {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.calendar-now-card {
  display: grid;
  gap: 10px;
  padding: 16px;
  border-left: 5px solid var(--blue);
}

.calendar-now-card h3,
.calendar-now-card p {
  margin: 0;
}

.calendar-now-card h3 {
  font-size: 1.16rem;
  line-height: 1.18;
}

.calendar-now-card p {
  color: #344255;
  line-height: 1.48;
}

.calendar-now-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.calendar-service-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  overflow: hidden;
}

.calendar-service-stats div {
  display: grid;
  gap: 3px;
  min-width: 0;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 12px;
}

.calendar-service-stats div:nth-child(2n) {
  border-right: 0;
}

.calendar-service-stats div:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.calendar-service-stats dt,
.calendar-service-stats dd {
  margin: 0;
}

.calendar-service-stats dt,
.calendar-date em,
.calendar-action-grid span,
.calendar-chip-row span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 780;
}

.calendar-service-stats dd {
  display: grid;
  gap: 2px;
  font-size: 1rem;
  font-weight: 820;
}

.calendar-service-stats dd span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 680;
  line-height: 1.25;
}

.calendar-legend {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 740;
}

.calendar-legend span {
  display: inline-flex;
  gap: 6px;
  align-items: center;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--blue);
}

.legend-dot.is-supplemental {
  background: var(--green);
}

.legend-dot.is-review {
  background: var(--amber);
}

.legend-dot.is-current {
  background: var(--rose);
}

.calendar-card {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr);
  gap: 16px;
  position: relative;
  border: 1px solid var(--line);
  border-left: 5px solid var(--blue);
  border-radius: var(--radius);
  padding: 14px;
  background: #fbfcfb;
}

.calendar-card.is-current {
  border-color: rgba(47, 111, 159, 0.55);
  border-left-color: var(--rose);
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(29, 41, 57, 0.1);
}

.calendar-card.is-supplemental {
  border-left-color: var(--green);
}

.calendar-card.is-enrichment,
.calendar-card.is-review {
  border-left-color: var(--amber);
}

.calendar-date {
  display: grid;
  gap: 6px;
  align-content: start;
}

.calendar-date strong {
  font-size: 1.05rem;
}

.calendar-date em {
  display: inline-flex;
  width: fit-content;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 8px;
  background: var(--surface);
  font-style: normal;
}

.calendar-date span,
.calendar-title-row span,
.calendar-facts dt,
.coverage-row span,
.quality-card span,
.review-finding-list span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 760;
}

.calendar-main {
  min-width: 0;
}

.calendar-title-row {
  display: flex;
  gap: 10px;
  align-items: start;
  justify-content: space-between;
}

.calendar-title-row h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.25;
}

.calendar-main p,
.coverage-row p,
.quality-card p,
.review-finding-list p,
.curriculum-note p {
  margin: 6px 0 0;
  color: #344255;
  line-height: 1.48;
}

.calendar-progress-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content;
  gap: 10px;
  align-items: center;
  margin-top: 12px;
}

.calendar-progress-row strong {
  color: var(--muted);
  font-size: 0.82rem;
  white-space: nowrap;
}

.calendar-action-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.calendar-action-grid div {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  background: var(--surface);
}

.calendar-action-grid p {
  margin-top: 4px;
  font-size: 0.9rem;
}

.calendar-chip-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  min-width: 0;
}

.calendar-action-grid + .calendar-chip-row {
  margin-top: 10px;
}

.calendar-chip-row span {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 8px;
  background: #f4f8f6;
  color: #344255;
}

.calendar-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 12px 0 0;
}

.calendar-facts div,
.coverage-row,
.quality-card,
.review-finding-list li,
.curriculum-note {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  background: var(--surface);
}

.calendar-facts dt,
.calendar-facts dd {
  margin: 0;
}

.calendar-facts dd,
.coverage-row strong,
.quality-card strong,
.review-finding-list strong,
.curriculum-note strong {
  display: block;
}

.calendar-card-footer {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
}

.review-finding-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.curriculum-note {
  margin-top: 12px;
  background: #fffaf0;
  border-color: rgba(184, 121, 21, 0.35);
}

.curriculum-note.is-briefing {
  background: #f3f8fb;
  border-color: rgba(47, 111, 159, 0.28);
}

.coverage-row {
  display: grid;
  grid-template-columns: minmax(170px, 0.7fr) minmax(120px, 0.35fr) minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.quality-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 16px;
}

.production-rule-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 16px;
}

.filter-label {
  display: grid;
  gap: 4px;
  min-width: 190px;
}

.filter-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.progress-layout {
  display: grid;
  gap: 18px;
}

.progress-overview {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.metric-tile {
  display: grid;
  gap: 6px;
}

.metric-tile span,
.metric-tile small {
  color: var(--muted);
}

.metric-tile strong {
  font-size: 1.6rem;
}

.summary-layout {
  display: grid;
  gap: 18px;
}

.summary-hero {
  align-items: center;
  background:
    linear-gradient(90deg, rgba(47, 111, 159, 0.09), rgba(47, 124, 95, 0.09)),
    var(--surface);
}

.summary-score {
  display: grid;
  place-items: center;
  width: 144px;
  min-width: 144px;
  height: 112px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.summary-score strong {
  font-size: 2.25rem;
}

.summary-score span {
  color: var(--muted);
  font-size: 0.82rem;
}

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

.compact-list li {
  display: grid;
  gap: 4px;
}

.staff-table,
.role-matrix {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.staff-table li,
.role-matrix li {
  display: grid;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: #fbfcfb;
}

.staff-table li {
  grid-template-columns: minmax(0, 1.4fr) 90px 90px 130px;
}

.staff-table strong,
.staff-table small,
.role-matrix strong,
.role-matrix small {
  display: block;
}

.staff-table em,
.staff-table b {
  font-style: normal;
}

.staff-table em {
  color: var(--muted);
  font-weight: 760;
}

.staff-table b {
  color: var(--green);
}

.role-matrix li {
  grid-template-columns: minmax(190px, 0.7fr) minmax(0, 1fr);
}

.role-matrix div {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

@media (max-width: 1120px) {
  .dashboard-layout,
  .course-layout,
  .player-layout,
  .curriculum-grid,
  .calendar-command-center,
  .dashboard-grid,
  .support-grid,
  .summary-columns,
  .auth-page {
    grid-template-columns: 1fr;
  }

  .lesson-steps {
    position: static;
    max-height: none;
    order: 1;
  }

  .asset-viewer {
    order: 2;
  }

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

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

  .subject-brief-grid,
  .annual-calendar-board,
  .calendar-action-grid,
  .production-rule-grid {
    grid-template-columns: 1fr;
  }

  .curriculum-hero {
    display: grid;
  }

  .curriculum-hero-actions {
    justify-content: flex-start;
  }

  .auth-page {
    grid-template-columns: minmax(0, 560px);
    align-content: center;
    justify-items: stretch;
  }

  .auth-card {
    grid-column: auto;
    transform: none;
  }

  .auth-background-video {
    object-position: 34% center;
  }
}

@media (max-width: 860px) {
  .auth-page {
    gap: 16px;
    padding: 20px 14px;
  }

  .lms-shell {
    grid-template-columns: 1fr;
  }

  .app-sidebar {
    position: static;
    height: auto;
    gap: 12px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 14px;
  }

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

  .nav-button {
    min-height: 40px;
    padding: 8px 10px;
  }

  .learner-strip {
    display: none;
  }

  .main-surface {
    padding: 14px;
  }

  .lms-shell.is-player-focus .main-surface {
    padding: 10px;
  }

  .top-bar,
  .section-head,
  .asset-header,
  .curriculum-hero-actions,
  .summary-hero,
  .asset-footer {
    display: grid;
  }

  .top-actions,
  .action-row,
  .asset-header-actions,
  .asset-footer-actions,
  .button-group {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
  }

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

  .top-actions .primary-button {
    grid-column: 1 / -1;
  }

  .primary-button,
  .secondary-button,
  .ghost-button {
    width: 100%;
  }

  .unit-facts,
  .unit-start-panel,
  .progress-overview,
  .curriculum-metrics,
  .quality-grid,
  .calendar-command-center,
  .calendar-service-stats,
  .calendar-action-grid,
  .calendar-facts,
  .subject-brief-stats,
  .mini-pacing,
  .production-rule-grid,
  .summary-columns {
    grid-template-columns: 1fr;
  }

  .unit-progress-card {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 12px 0 0;
  }

  .mastery-row,
  .material-row,
  .asset-row,
  .calendar-card,
  .coverage-row,
  .staff-table li,
  .role-matrix li {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .mastery-row .bar,
  .mastery-row em,
  .material-row .inline-button,
  .material-row em,
  .asset-row .inline-button,
  .asset-row em,
  .staff-table em,
  .staff-table b,
  .calendar-main,
  .calendar-card-footer,
  .coverage-row p,
  .role-matrix div {
    grid-column: 1 / -1;
  }

  .calendar-card-footer,
  .calendar-now-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .calendar-service-stats div,
  .calendar-service-stats div:nth-child(2n),
  .calendar-service-stats div:nth-last-child(-n + 2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .calendar-service-stats div:last-child {
    border-bottom: 0;
  }

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

  .coverage-row p {
    grid-column: auto;
  }

  .mastery-row em {
    text-align: left;
  }

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

  .pdf-frame iframe {
    height: 62vh;
  }

  .top-bar h1 {
    font-size: 1.38rem;
  }

  .quiz-progress {
    grid-template-columns: repeat(6, 1fr);
  }
}

@media (max-width: 430px) {
  .auth-page {
    padding: 14px 10px;
  }

  .auth-card,
  .access-card {
    padding: 16px;
  }

  .auth-role-grid {
    grid-template-columns: 1fr;
  }

  .main-surface {
    padding: 10px;
  }

  .lms-shell.is-player-focus .main-surface {
    padding: 8px;
  }

  .player-layout.is-focus-mode .asset-viewer {
    min-height: calc(100vh - 16px);
    padding: 12px;
  }

  .player-layout.is-focus-mode .pdf-frame iframe {
    min-height: 600px;
  }

  .today-panel,
  .wide-panel,
  .unit-detail,
  .library-panel,
  .asset-viewer,
  .summary-hero,
  .summary-panel,
  .lesson-steps {
    padding: 12px;
  }

  .brand-row {
    grid-template-columns: 44px minmax(0, 1fr);
  }

  .brand-row img {
    width: 44px;
    height: 44px;
  }

  .choice-button,
  .plan-list button,
  .path-list button,
  .learning-path-preview button,
  .learning-part-group button {
    grid-template-columns: 1fr;
  }

  .player-step {
    grid-template-columns: 30px auto minmax(0, 1fr);
  }

  .player-step > em {
    grid-column: 3 / -1;
    justify-self: start;
  }

  .lesson-bundle-parts {
    grid-template-columns: 1fr;
  }

  .lesson-part-button {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }

  .lesson-part-button em {
    grid-column: 2 / -1;
  }

  .learning-part-preview,
  .unit-path-metrics {
    grid-template-columns: 1fr;
  }

  .asset-type {
    width: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .auth-page {
    background-image: url("./assets/solbee-login-loop-poster.jpg");
    background-position: center;
    background-size: cover;
  }

  .auth-background-video {
    display: none;
  }
}