/* ===================================
   Teachia — Admin Dashboard
   Two-theme system (light / dark) matching the main site
   =================================== */

/* ── Default = Light (MOE identity) ── */
:root,
:root[data-theme="light"] {
  --color-bg: #FFFFFF;
  --color-bg-subtle: #EFEEEE;
  --color-bg-elev: #FFFFFF;
  --color-bg-hover: #F8F8F6;
  --color-bg-input: #FFFFFF;

  --color-primary: #2FAB99;
  --color-primary-light: #3CC4B0;
  --color-primary-dark: #005448;
  --color-primary-glow: rgba(47, 171, 153, 0.10);

  --color-border: #DCDCDC;
  --color-border-soft: #E8E8E8;

  --color-text: #3B3D3F;
  --color-text-secondary: #615E5E;
  --color-text-muted: #8A8A8A;
  --color-text-bright: #1A1A1A;

  --color-success: #2FAB99;
  --color-warning: #E8A317;
  --color-danger: #D9534F;

  --color-header-bg: #3B3D3F;
  --color-header-text: #FFFFFF;
  --color-header-text-dim: rgba(255, 255, 255, 0.85);
  --color-header-border: rgba(255, 255, 255, 0.15);

  --color-code-bg: #EFEEEE;
  --color-code-text: #1A1A1A;

  --shadow-card: 0 1px 4px rgba(0, 0, 0, 0.06);
  --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.12);
  --shadow-modal: 0 8px 32px rgba(0, 0, 0, 0.20);
}

/* ── Dark theme ── */
:root[data-theme="dark"] {
  --color-bg: #0F172A;
  --color-bg-subtle: #111827;
  --color-bg-elev: #1E293B;
  --color-bg-hover: #273449;
  --color-bg-input: #1E293B;

  --color-primary: #3CC4B0;
  --color-primary-light: #5ED6C3;
  --color-primary-dark: #2FAB99;
  --color-primary-glow: rgba(60, 196, 176, 0.16);

  --color-border: #334155;
  --color-border-soft: #253047;

  --color-text: #E2E8F0;
  --color-text-secondary: #CBD5E1;
  --color-text-muted: #94A3B8;
  --color-text-bright: #FFFFFF;

  --color-success: #3CC4B0;
  --color-warning: #F59E0B;
  --color-danger: #F87171;

  --color-header-bg: #0B1220;
  --color-header-text: #FFFFFF;
  --color-header-text-dim: rgba(255, 255, 255, 0.80);
  --color-header-border: rgba(255, 255, 255, 0.10);

  --color-code-bg: #0B1220;
  --color-code-text: #E2E8F0;

  --shadow-card: 0 1px 4px rgba(0, 0, 0, 0.40);
  --shadow-card-hover: 0 4px 16px rgba(0, 0, 0, 0.55);
  --shadow-modal: 0 10px 36px rgba(0, 0, 0, 0.65);
}

/* ── Theme-agnostic tokens ── */
:root {
  --font-primary: 'Tajawal', 'Segoe UI', system-ui, sans-serif;
  --radius-sm: 4px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --radius-full: 15px;
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

/* ── Reset ── */
* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-primary);
  font-size: 14px;
  line-height: 1.65;
  direction: rtl;
  text-align: right;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  transition: background var(--transition-base), color var(--transition-base);
}

::selection { background: var(--color-primary); color: #fff; }

.hidden { display: none !important; }

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-primary-dark); }

/* ─── Header (adaptive) ─── */
#topbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 24px;
  background: var(--color-header-bg);
  color: var(--color-header-text);
  flex-wrap: wrap;
  gap: 12px;
  min-height: 64px;
  transition: background var(--transition-base);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--color-header-text);
}
.brand img {
  height: 40px;
  width: auto;
  display: block;
}
.brand-label {
  color: var(--color-header-text-dim);
  font-weight: 500;
  font-size: 14px;
  padding-right: 10px;
  border-right: 1px solid var(--color-header-border);
}

nav { display: flex; gap: 0; flex-wrap: wrap; }
.tab {
  padding: 18px 14px;
  color: var(--color-header-text-dim);
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  background: transparent;
  border: none;
  border-right: 1px solid var(--color-header-border);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.tab:first-child { border-right: none; }
.tab:hover { color: #fff; background: rgba(255, 255, 255, 0.08); }
.tab.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.14);
  font-weight: 700;
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-header-text-dim);
  font-size: 14px;
}

/* ─── Theme toggle button ─── */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-header-border);
  background: transparent;
  color: var(--color-header-text-dim);
  cursor: pointer;
  font-size: 16px;
  transition: all var(--transition-fast);
  padding: 0;
}
.theme-toggle:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.08);
}
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: inline; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: inline; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* ─── Layout ─── */
main {
  padding: 28px 24px;
  max-width: 1280px;
  margin: 0 auto;
}

.view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}
.view-header h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text-bright);
}

.row-inline { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* ─── Card ─── */
.card {
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 28px;
  max-width: 460px;
  margin: 48px auto;
  box-shadow: var(--shadow-card);
}
.card h1 {
  margin: 0 0 8px;
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text-bright);
}

/* ─── Stat cards grid ─── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
}
.stat-card {
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  transition: all var(--transition-base);
}
.stat-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-card-hover);
}
.stat-label {
  color: var(--color-text-secondary);
  font-size: 13px;
  font-weight: 500;
}
.stat-value {
  color: var(--color-primary);
  font-size: 28px;
  font-weight: 800;
  margin: 6px 0 4px;
  line-height: 1.1;
}
.stat-sub {
  color: var(--color-text-muted);
  font-size: 12px;
  min-height: 1.2em;
}

/* ─── Forms ─── */
form label {
  display: block;
  margin: 12px 0;
  font-size: 13px;
  color: var(--color-text-secondary);
  font-weight: 500;
}
form input, form select {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-input);
  color: var(--color-text);
  font-family: inherit;
  font-size: 14px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
form input:focus, form select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.filter-input {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-input);
  color: var(--color-text);
  font-family: inherit;
  font-size: 13px;
  min-width: 200px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.filter-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

/* ─── Buttons ─── */
button.primary {
  background: var(--color-primary);
  color: #fff;
  border: none;
  padding: 9px 22px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition-base);
}
button.primary:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-card-hover);
}
button.primary:disabled { opacity: 0.5; cursor: not-allowed; }

button.ghost {
  background: var(--color-bg-elev);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition-fast);
}
button.ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Ghost variant inside dark header */
#topbar button.ghost {
  background: transparent;
  color: var(--color-header-text-dim);
  border-color: var(--color-header-border);
}
#topbar button.ghost:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.08);
}

button.danger {
  background: var(--color-danger);
  color: #fff;
  border: none;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
}
button.danger:hover { opacity: 0.92; }

.error { color: var(--color-danger); margin-top: 10px; font-size: 13px; }
.success { color: var(--color-primary); margin-top: 10px; font-size: 13px; }
.muted { color: var(--color-text-muted); font-size: 13px; }

/* ─── Table ─── */
.table-wrap {
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  box-shadow: var(--shadow-card);
}
table { width: 100%; border-collapse: collapse; }
th, td {
  text-align: right;
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-border-soft);
  font-size: 14px;
  vertical-align: middle;
  color: var(--color-text);
}
th {
  color: var(--color-text-secondary);
  font-weight: 600;
  background: var(--color-bg-subtle);
  font-size: 13px;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--color-bg-hover); }
td code, code {
  background: var(--color-code-bg);
  color: var(--color-code-text);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 12px;
}

/* ─── Badges ─── */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
}
.badge.ok { background: rgba(47, 171, 153, 0.14); color: var(--color-primary); }
.badge.warn { background: rgba(232, 163, 23, 0.14); color: var(--color-warning); }
.badge.err { background: rgba(217, 83, 79, 0.14); color: var(--color-danger); }
.badge.muted { background: rgba(138, 138, 138, 0.14); color: var(--color-text-muted); }

/* ─── Modal ─── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  padding: 16px;
}
.modal {
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 28px;
  width: 100%;
  max-width: 460px;
  box-shadow: var(--shadow-modal);
}
.modal h3 {
  margin: 0 0 10px;
  color: var(--color-text-bright);
  font-size: 18px;
  font-weight: 700;
}
.row { display: flex; gap: 10px; justify-content: flex-start; margin-top: 18px; }

/* ─── Responsive ─── */
@media (max-width: 720px) {
  #topbar { flex-direction: column; align-items: stretch; padding: 14px; }
  nav { justify-content: center; }
  .tab { padding: 10px 12px; }
  th, td { padding: 8px; font-size: 12px; }
  main { padding: 16px 12px; }
  .stat-value { font-size: 22px; }
  .brand-label { display: none; }
}