/* Blue4Learn app shell — Figma tokens & layout */

:root {
  --blue: #003d9b;
  --blue-active: #0052cc;
  --blue-deep: #191c1e;
  --blue-soft: #c4d2ff;
  --teal: #00687b;
  --teal-deep: #005f71;
  --cyan: #50dcff;
  --amber: #d97706;
  --danger: #ba1a1a;
  --danger-soft: rgba(255, 218, 214, 0.2);
  --bg: #f8f9fb;
  --surface: #ffffff;
  --surface-muted: #f3f4f6;
  --text: #191c1e;
  --muted: #434654;
  --line: #c3c6d6;
  --line-soft: rgba(195, 198, 214, 0.5);
  --shadow: 0 4px 24px -8px rgba(0, 61, 155, 0.08);
  --radius: 12px;
  --radius-sm: 8px;
  --side-w: 256px;
  --top-h: 64px;
  --font: "Hanken Grotesk", system-ui, sans-serif;
  --font-display: "Manrope", system-ui, sans-serif;
  --mono: "JetBrains Mono", "Liberation Mono", ui-monospace, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --blue: #60a5fa;
    --blue-active: #3b82f6;
    --blue-deep: #e2e8f0;
    --blue-soft: #1e3a5f;
    --teal: #2dd4bf;
    --teal-deep: #0f766e;
    --cyan: #22d3ee;
    --amber: #fbbf24;
    --danger: #f87171;
    --danger-soft: rgba(248, 113, 113, 0.16);
    --bg: #0b1220;
    --surface: #141c2e;
    --surface-muted: #1a2438;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --line: #243049;
    --line-soft: rgba(148, 163, 184, 0.22);
    --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  }
}

html[data-theme="dark"] {
  --blue: #60a5fa;
  --blue-active: #3b82f6;
  --blue-deep: #e2e8f0;
  --blue-soft: #1e3a5f;
  --teal: #2dd4bf;
  --teal-deep: #0f766e;
  --cyan: #22d3ee;
  --amber: #fbbf24;
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.16);
  --bg: #0b1220;
  --surface: #141c2e;
  --surface-muted: #1a2438;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --line: #243049;
  --line-soft: rgba(148, 163, 184, 0.22);
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

body.app-body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}

body.app-body.is-landing {
  background: var(--bg);
}

.app-shell {
  display: flex;
  min-height: 100vh;
}

.app-side {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 40;
  width: var(--side-w);
  height: 100vh;
  background: var(--surface);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  padding: 1.5rem 0;
}

.app-side-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0 1.5rem 2rem;
  text-decoration: none !important;
  color: inherit;
}

.app-side-brand .brand-mark {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-sm);
  background: var(--blue);
  color: #fff;
  display: grid;
  place-items: center;
  font-family: var(--font);
  font-weight: 700;
  font-size: 1.125rem;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.05);
}

.app-side-brand .brand-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 2rem;
  color: var(--blue);
  letter-spacing: -0.01em;
}

.app-side-brand .brand-tag {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--muted);
  line-height: 1rem;
}

.app-side-nav {
  flex: 1;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0 0.5rem;
}

.app-nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  margin: 0.25rem 0;
  border-radius: var(--radius-sm);
  color: var(--muted) !important;
  text-decoration: none !important;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: background 0.15s ease, color 0.15s ease;
}

.app-nav-link:hover {
  background: rgba(0, 61, 155, 0.06);
  color: var(--text) !important;
}

.app-nav-link.is-active {
  background: var(--blue-active);
  color: var(--blue-soft) !important;
}

.app-nav-icon {
  width: 1.375rem;
  height: 1.375rem;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  overflow: hidden;
}

.app-nav-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.app-nav-link.is-active .app-nav-icon img {
  filter: brightness(0) invert(1);
}

.app-side-user {
  margin: 0 1rem;
  padding: 1rem;
  background: var(--surface-muted);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.app-side-avatar {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 9999px;
  background: var(--cyan);
  color: var(--teal-deep);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}

.app-side-user-meta {
  flex: 1;
  min-width: 0;
}

.app-side-user-name {
  display: block;
  font-size: 1rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-side-user-role {
  display: block;
  font-size: 0.6875rem;
  color: var(--muted);
}

.app-side-logout {
  border: none;
  background: transparent;
  padding: 0.25rem;
  cursor: pointer;
  line-height: 0;
  opacity: 0.7;
}

.app-side-logout:hover { opacity: 1; }

.app-side-logout img {
  width: 0.7rem;
  height: 0.7rem;
  display: block;
}

html[data-theme="dark"] .app-side-logout img {
  filter: brightness(0) invert(1);
  opacity: 0.85;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .app-side-logout img {
    filter: brightness(0) invert(1);
    opacity: 0.85;
  }
}

.app-main {
  flex: 1;
  margin-left: var(--side-w);
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.app-topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  height: var(--top-h);
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  gap: 1rem;
}

.app-topbar-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--blue);
  margin: 0;
}

.app-crumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 1rem;
  flex-wrap: wrap;
}

.app-crumbs img {
  width: 0.9rem;
  height: 0.7rem;
  display: block;
}

.app-crumbs .crumb-sep {
  opacity: 0.55;
  padding: 0 0.15rem;
}

.app-crumbs .crumb-current {
  color: var(--text);
}

.app-top-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.app-icon-btn {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 9999px;
  border: none;
  background: transparent;
  display: grid;
  place-items: center;
  color: var(--muted);
  text-decoration: none !important;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

a.app-icon-btn:hover,
a.app-icon-btn:focus-visible,
button.app-icon-btn:hover,
button.app-icon-btn:focus-visible {
  background: var(--surface-muted);
  color: var(--blue);
  outline: none;
}

.app-icon-btn i {
  font-size: 1.125rem;
  line-height: 1;
}

.app-icon-btn img {
  width: 1.125rem;
  height: 1.125rem;
  display: block;
}

html[data-theme="dark"] .app-icon-btn img {
  filter: brightness(0) invert(1);
  opacity: 0.78;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .app-icon-btn img {
    filter: brightness(0) invert(1);
    opacity: 0.78;
  }
}

.app-top-avatar {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 9999px;
  background: var(--blue);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none !important;
}

.app-canvas {
  flex: 1;
  padding: 2rem;
  max-width: 1280px;
  width: 100%;
}

.app-footer {
  border-top: 1px solid rgba(195, 198, 214, 0.3);
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.875rem;
}

.app-footer a {
  color: var(--blue);
  font-weight: 500;
  text-decoration: none !important;
}

.app-footer a:hover { text-decoration: underline !important; }

.app-menu-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  padding: 0;
}

.app-menu-toggle span {
  display: block;
  width: 1.05rem;
  height: 2px;
  border-radius: 999px;
  background: var(--text);
}

.app-side-backdrop {
  display: none;
}

/* Page primitives aligned to Figma */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1.5rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.page-header h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text);
  margin: 0 0 0.5rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--teal);
  margin-bottom: 0.5rem;
}

.section-lead {
  color: var(--muted);
  font-size: 1.125rem;
  line-height: 1.55;
  max-width: 40rem;
  margin: 0;
}

.btn-primary {
  --bs-btn-bg: var(--blue);
  --bs-btn-border-color: var(--blue);
  --bs-btn-color: #fff;
  --bs-btn-hover-bg: var(--blue-active);
  --bs-btn-hover-border-color: var(--blue-active);
  --bs-btn-hover-color: #fff;
  --bs-btn-font-weight: 600;
  border-radius: var(--radius-sm) !important;
  padding: 0.7rem 1.35rem !important;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.05);
  text-decoration: none !important;
  color: #fff !important;
}

.btn-primary:hover,
.btn-primary:focus {
  color: #fff !important;
  text-decoration: none !important;
}

.btn-outline-primary {
  --bs-btn-color: var(--blue);
  --bs-btn-border-color: var(--blue);
  --bs-btn-hover-bg: var(--blue);
  --bs-btn-hover-border-color: var(--blue);
  --bs-btn-hover-color: #fff;
  --bs-btn-font-weight: 600;
  border-radius: var(--radius-sm) !important;
  padding: 0.65rem 1.2rem !important;
  text-decoration: none !important;
  background: transparent;
  color: var(--blue) !important;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background: var(--blue) !important;
  border-color: var(--blue) !important;
  color: #fff !important;
  text-decoration: none !important;
}

.btn-sm.btn-primary,
.btn-sm.btn-outline-primary {
  padding: 0.4rem 0.85rem !important;
  border-radius: 6px !important;
}

a.btn {
  text-decoration: none !important;
}

a.btn:hover,
a.btn:focus {
  text-decoration: none !important;
}

.data-card {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  color: var(--text);
}

.data-card .table {
  margin: 0;
  --bs-table-bg: transparent;
  --bs-table-accent-bg: transparent;
  --bs-table-color: var(--text);
  --bs-table-border-color: var(--line-soft);
  --bs-table-striped-bg: color-mix(in srgb, var(--muted) 8%, transparent);
  --bs-table-striped-color: var(--text);
  --bs-table-hover-bg: color-mix(in srgb, var(--blue) 10%, transparent);
  --bs-table-hover-color: var(--text);
  color: var(--text) !important;
  background-color: transparent;
}

.data-card .table thead th {
  background: var(--surface-muted) !important;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text) !important;
  font-weight: 700;
  font-size: 1rem;
  padding: 1rem 1.5rem;
  white-space: nowrap;
}

.data-card .table tbody td {
  padding: 1.25rem 1.5rem;
  color: var(--muted);
  vertical-align: middle;
  border-color: var(--line-soft);
  background: transparent !important;
  box-shadow: none;
}

.data-card .table tbody tr {
  background: transparent;
}

.data-card .table .text-body {
  color: var(--text) !important;
}

.data-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: color-mix(in srgb, var(--surface-muted) 70%, transparent);
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 0.875rem;
}

.code-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  border-radius: 6px;
  background: var(--danger-soft);
  color: var(--danger);
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.875rem;
}

.member-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  border-radius: 9999px;
  background: color-mix(in srgb, var(--cyan) 35%, transparent);
  color: var(--teal);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1.15;
  max-width: 4.5rem;
  text-align: center;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: 9999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.status-published,
.status-pill.status-published {
  background: rgba(80, 220, 255, 0.45);
  color: var(--teal-deep);
}

.soft-panel {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.35rem;
}

.alert-soft {
  border-radius: var(--radius-sm);
}

/* Guest / landing: hide shell chrome */
body.is-landing .app-shell,
body:not(.is-authenticated) .app-side {
  /* handled via layout branches */
}

.app-guest-header {
  padding: 0.75rem 0;
}

.app-guest-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.syllabus-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(220px, 0.7fr);
  gap: 1.25rem;
  align-items: start;
}

.syllabus-modules {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 1rem;
}

.syllabus-modules ul {
  margin: 0.4rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

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

.component-lessons {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.55rem;
}

.component-lessons li {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: center;
  padding: 0.45rem 0;
  border-top: 1px solid rgba(195, 198, 214, 0.35);
}

.journal-feed {
  display: grid;
  gap: 1rem;
}

.journal-card.is-review {
  border-color: rgba(217, 119, 6, 0.35);
  box-shadow: 0 4px 24px -8px rgba(217, 119, 6, 0.18);
}

@media (max-width: 991.98px) {
  .syllabus-grid,
  .components-grid {
    grid-template-columns: 1fr;
  }
}

/* Workspace lesson side menu (Figma: menu lateral) */
.ws-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.ws-side-nav {
  position: sticky;
  top: calc(var(--top-h) + 1rem);
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.ws-side-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0.5rem 0.5rem;
}

.ws-side-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-sm);
  color: var(--muted) !important;
  text-decoration: none !important;
  font-weight: 600;
  font-size: 0.9rem;
  position: relative;
}

.ws-side-link:hover {
  background: rgba(0, 61, 155, 0.06);
  color: var(--text) !important;
}

.ws-side-link.is-active {
  background: var(--blue-active);
  color: #fff !important;
}

.ws-side-link .ws-tool-badge {
  margin-left: auto;
}

.ws-main-col {
  min-width: 0;
  display: grid;
  gap: 1rem;
}

.dash-progress-card {
  background: linear-gradient(160deg, #003d9b 0%, #0b2d6b 100%) !important;
  color: #fff !important;
  border-radius: var(--radius) !important;
}

.teach-stat-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.85rem;
  margin-bottom: 1.75rem;
}

@media (max-width: 1100px) {
  .teach-stat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 991.98px) {
  .ws-layout {
    grid-template-columns: 1fr;
  }

  .ws-side-nav {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }

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

  .app-side {
    transform: translateX(-105%);
    transition: transform 0.2s ease;
  }

  .app-shell.is-nav-open .app-side {
    transform: translateX(0);
  }

  .app-side-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(25, 28, 30, 0.35);
    z-index: 35;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
  }

  .app-shell.is-nav-open .app-side-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  .app-main {
    margin-left: 0;
  }

  .app-menu-toggle {
    display: inline-flex;
  }

  .app-canvas {
    padding: 1.25rem;
  }

  .page-header h1 {
    font-size: 2rem;
  }
}

/* Teacher evidence analysis */
.evidence-report-summary {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
  border: 1px solid var(--line-soft);
  color: var(--text);
}

.evidence-checklist-list,
.evidence-commit-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.evidence-check {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: start;
  padding: 0.65rem 0;
  border-top: 1px solid var(--line-soft);
}

.evidence-check:first-child {
  border-top: none;
  padding-top: 0;
}

.evidence-check-status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 1.5rem;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.evidence-check.is-met .evidence-check-status {
  background: color-mix(in srgb, var(--teal) 22%, transparent);
  color: var(--teal);
}

.evidence-check.is-partial .evidence-check-status {
  background: color-mix(in srgb, var(--amber) 22%, transparent);
  color: var(--amber);
}

.evidence-check.is-missing .evidence-check-status {
  background: color-mix(in srgb, var(--danger) 18%, transparent);
  color: var(--danger);
}

.evidence-commit-list li {
  display: block;
  padding: 0.55rem 0;
  border-top: 1px solid var(--line-soft);
  color: var(--text);
}

.evidence-commit-list li:first-child {
  border-top: none;
}

.evidence-commit-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.65rem;
  align-items: baseline;
}

.evidence-commit-date {
  font-size: 0.8rem;
  color: var(--muted);
  min-width: 7.5rem;
}

.evidence-commit-list code {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--blue);
}

.evidence-commit-files {
  list-style: none;
  margin: 0.45rem 0 0;
  padding: 0 0 0 0.25rem;
  display: grid;
  gap: 0.25rem;
}

.evidence-commit-files li {
  border-top: none;
  padding: 0.1rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.55rem;
  align-items: baseline;
}

.evidence-file-status {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--muted);
  min-width: 4.5rem;
}