/* Components — chỉ dùng tokens. */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: var(--touch); padding: 0 var(--space-5);
  border-radius: var(--radius-md); border: 1px solid transparent;
  font-weight: 600; font-size: var(--text-sm); text-decoration: none; white-space: nowrap;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur-fast) var(--ease), box-shadow var(--dur) var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }
.btn-primary { background: var(--color-primary); color: var(--color-on-primary); box-shadow: var(--shadow-sm); }
.btn-primary:hover:not(:disabled) { background: var(--color-primary-hover); color: var(--color-on-primary); }
.btn-secondary { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border-strong); }
.btn-secondary:hover:not(:disabled) { background: var(--color-surface-2); color: var(--color-text); }
.btn-outline { background: transparent; color: var(--color-text); border-color: var(--color-border-strong); }
.btn-outline:hover:not(:disabled) { background: var(--color-surface-2); color: var(--color-text); }
.btn-ghost { background: transparent; color: var(--color-primary); }
.btn-ghost:hover:not(:disabled) { background: var(--color-primary-soft); }
.btn-light { background: #fff; color: #1e3a8a; }
.btn-light:hover { background: #eff6ff; color: #1e3a8a; }
.btn-lg { min-height: 52px; padding: 0 var(--space-6); font-size: var(--text-base); border-radius: var(--radius-lg); }
.btn-sm { min-height: 36px; padding: 0 var(--space-3); font-size: var(--text-sm); }
.btn-block { width: 100%; }
.btn.is-busy { position: relative; color: transparent !important; }
.btn.is-busy > * { visibility: hidden; }
.btn.is-busy::after { content: ""; position: absolute; width: 18px; height: 18px; border: 2px solid currentColor; border-color: var(--color-muted); border-top-color: transparent; border-radius: 50%; animation: spin 0.7s linear infinite; }
.btn-row { display: flex; gap: var(--space-3); justify-content: flex-end; flex-wrap: wrap; }
@media (pointer: coarse) { .btn-sm { min-height: var(--touch); } }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center; position: relative;
  width: var(--touch); height: var(--touch); border-radius: var(--radius-md);
  border: 0; background: transparent; color: var(--color-text-2);
}
.icon-btn:hover { background: var(--color-surface-2); color: var(--color-text); }
.icon { flex-shrink: 0; }
.icon.star { color: #f59e0b; fill: #f59e0b; }
.icon.filled { fill: currentColor; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: var(--z-header);
  background: color-mix(in srgb, var(--color-surface) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px); -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding-top: env(safe-area-inset-top);
}
.header-bar { display: flex; align-items: center; gap: var(--space-4); height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--text-xl); font-weight: 800; color: var(--color-text); text-decoration: none; letter-spacing: -0.02em; }
.brand:hover { color: var(--color-text); }
.brand b { color: var(--color-primary); }
.brand-center { justify-content: center; width: 100%; margin-bottom: var(--space-6); }
.main-nav { flex: 1; }
.main-nav ul { display: flex; gap: var(--space-1); list-style: none; margin: 0; padding: 0; }
.main-nav a { display: inline-flex; align-items: center; min-height: 40px; padding: 0 var(--space-3); border-radius: var(--radius-md); color: var(--color-text-2); font-weight: 550; font-size: var(--text-sm); text-decoration: none; }
.main-nav a:hover { background: var(--color-surface-2); color: var(--color-text); }
.main-nav a[aria-current="page"] { color: var(--color-primary); background: var(--color-primary-soft); }
.header-actions { display: flex; align-items: center; gap: var(--space-1); margin-left: auto; }
.bell-dot { position: absolute; top: 6px; right: 4px; min-width: 18px; height: 18px; padding: 0 4px; border-radius: var(--radius-full); background: var(--color-danger); color: #fff; font-size: 11px; font-weight: 700; display: grid; place-items: center; }
.user-wrap { position: relative; }
.user-btn { display: inline-flex; align-items: center; gap: var(--space-2); min-height: var(--touch); padding: 0 var(--space-2); border: 0; background: transparent; border-radius: var(--radius-md); color: var(--color-text); font-weight: 600; font-size: var(--text-sm); }
.user-btn:hover { background: var(--color-surface-2); }
.user-menu { position: absolute; right: 0; top: calc(100% + 6px); width: 260px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); padding: var(--space-2); }
.user-menu-head { display: flex; flex-direction: column; gap: 2px; padding: var(--space-3); border-bottom: 1px solid var(--color-border); margin-bottom: var(--space-2); }
.user-menu-head span { font-size: var(--text-sm); color: var(--color-muted); overflow-wrap: anywhere; }
.user-menu-head .badge { align-self: flex-start; margin-top: var(--space-1); }
.user-menu a, .user-menu button { display: flex; align-items: center; gap: var(--space-2); width: 100%; min-height: 40px; padding: 0 var(--space-3); border: 0; background: none; border-radius: var(--radius-md); color: var(--color-text); text-decoration: none; font-size: var(--text-sm); text-align: left; }
.user-menu a:hover, .user-menu button:hover { background: var(--color-surface-2); color: var(--color-text); }
@media (max-width: 1023px) { .main-nav { display: none; } .user-btn-name { display: none; } }
@media (max-width: 479px) { .header-bar { gap: var(--space-2); } .header-actions { gap: 0; } .user-btn > .icon { display: none; } .brand { font-size: var(--text-lg); } }
@media (min-width: 1024px) { .show-sm { display: none !important; } }
@media (max-width: 1023px) and (min-width: 768px) { .header-actions .show-sm { display: inline-flex !important; } }

/* Drawer */
.drawer { position: fixed; inset: 0; z-index: var(--z-drawer); pointer-events: none; }
.drawer-backdrop { position: absolute; inset: 0; background: rgba(15, 23, 42, 0.5); opacity: 0; transition: opacity var(--dur) var(--ease); }
.drawer-panel { position: absolute; top: 0; right: 0; bottom: 0; width: min(320px, 86vw); background: var(--color-surface); padding: var(--space-4); padding-top: max(var(--space-4), env(safe-area-inset-top)); padding-bottom: max(var(--space-4), env(safe-area-inset-bottom)); transform: translateX(100%); transition: transform var(--dur) var(--ease); display: flex; flex-direction: column; gap: var(--space-4); overflow-y: auto; box-shadow: var(--shadow-lg); }
.drawer:not(.open) .drawer-panel { visibility: hidden; box-shadow: none; transition: transform var(--dur) var(--ease), visibility 0s var(--dur); }
.drawer.open { pointer-events: auto; }
.drawer.open .drawer-backdrop { opacity: 1; }
.drawer.open .drawer-panel { transform: none; }
.drawer-head { display: flex; justify-content: space-between; align-items: center; }
.drawer-user { display: flex; gap: var(--space-3); align-items: center; padding: var(--space-3); background: var(--color-surface-2); border-radius: var(--radius-md); }
.drawer-user div { display: flex; flex-direction: column; font-size: var(--text-sm); }
.drawer-user span { color: var(--color-muted); }
.drawer-links { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.drawer-links a { display: flex; align-items: center; gap: var(--space-3); min-height: 48px; padding: 0 var(--space-3); border-radius: var(--radius-md); color: var(--color-text); text-decoration: none; font-weight: 550; }
.drawer-links a:hover { background: var(--color-surface-2); }
.drawer-links a[aria-current="page"] { color: var(--color-primary); background: var(--color-primary-soft); }
.drawer-auth { display: flex; flex-direction: column; gap: var(--space-2); }

/* ---------- Avatar / badge ---------- */
.avatar { display: inline-grid; place-items: center; width: 34px; height: 34px; flex-shrink: 0; border-radius: var(--radius-full); background: var(--gradient-brand); color: #fff; font-size: var(--text-xs); font-weight: 700; }
.avatar-lg { width: 72px; height: 72px; font-size: var(--text-xl); }
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 2px 10px; border-radius: var(--radius-full); font-size: var(--text-xs); font-weight: 650; white-space: nowrap; }
.badge-neutral { background: var(--color-surface-2); color: var(--color-text-2); }
.badge-success { background: var(--color-success-soft); color: var(--color-success); }
.badge-warning { background: var(--color-warning-soft); color: var(--color-warning); }
.badge-danger { background: var(--color-danger-soft); color: var(--color-danger); }
.badge-info { background: var(--color-info-soft); color: var(--color-info); }
.chip { display: inline-flex; padding: 4px 10px; border-radius: var(--radius-full); background: var(--color-surface-2); font-size: var(--text-xs); font-weight: 600; color: var(--color-text-2); }
.chip.ok { background: var(--color-success-soft); color: var(--color-success); }

/* ---------- Cards ---------- */
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; }
.grid-cards { display: grid; gap: var(--space-6); grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid-cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .grid-cards { grid-template-columns: repeat(3, 1fr); } .grid-cards.compact { grid-template-columns: repeat(2, 1fr); } }
.course-card { position: relative; display: flex; flex-direction: column; transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease); }
.course-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--color-border-strong); }
.course-card:focus-within { box-shadow: var(--ring); }
.course-thumb { position: relative; aspect-ratio: 16 / 9; background:
  radial-gradient(circle at 80% 20%, rgba(255,255,255,0.35), transparent 40%),
  linear-gradient(135deg, var(--course-color, #2563eb), color-mix(in srgb, var(--course-color, #2563eb) 55%, #0f172a)); display: grid; place-items: center; overflow: hidden; }
.course-thumb::after { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(255,255,255,0.12) 1px, transparent 1px); background-size: 16px 16px; }
.course-thumb-mark { position: relative; z-index: 1; font-size: 2.5rem; font-weight: 800; color: rgba(255,255,255,0.95); letter-spacing: -0.04em; }
.course-thumb-level { position: absolute; z-index: 1; left: var(--space-3); top: var(--space-3); background: rgba(15,23,42,0.45); color: #fff; padding: 2px 10px; border-radius: var(--radius-full); font-size: var(--text-xs); font-weight: 600; }
.course-body { padding: var(--space-5); display: flex; flex-direction: column; gap: var(--space-2); flex: 1; }
.course-title { font-size: var(--text-lg); margin: 0; }
.course-title a { color: var(--color-text); text-decoration: none; }
.stretched::after { content: ""; position: absolute; inset: 0; }
.course-instructor { font-size: var(--text-sm); color: var(--color-muted); margin: 0; }
.course-summary { font-size: var(--text-sm); color: var(--color-text-2); margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.course-meta { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-4); margin-top: auto; padding-top: var(--space-2); font-size: var(--text-sm); color: var(--color-muted); }
.course-meta span { display: inline-flex; align-items: center; gap: 6px; }
.course-meta.lg { font-size: var(--text-base); margin: var(--space-4) 0; }
.course-progress { margin-top: var(--space-2); }
.course-progress-row { display: flex; justify-content: space-between; font-size: var(--text-sm); margin-bottom: var(--space-2); }

/* ---------- Progress ---------- */
.progress { height: 8px; background: var(--color-surface-2); border-radius: var(--radius-full); overflow: hidden; }
.progress-fill { height: 100%; background: var(--gradient-brand); border-radius: inherit; transition: width var(--dur-slow) var(--ease); }
.inline-progress { display: flex; align-items: center; gap: var(--space-2); min-width: 140px; }
.inline-progress .progress { flex: 1; }

/* ---------- Forms ---------- */
.input {
  width: 100%; min-height: var(--touch); padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border-strong); border-radius: var(--radius-md);
  background: var(--color-surface); color: var(--color-text);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.input:focus { outline: none; border-color: var(--color-primary); box-shadow: var(--ring); }
.input[aria-invalid="true"] { border-color: var(--color-danger); }
.input:disabled { background: var(--color-surface-2); cursor: not-allowed; }
textarea.input { resize: vertical; line-height: 1.5; }
.input-sm { min-height: 38px; width: auto; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-weight: 600; font-size: var(--text-sm); }
.field-hint { margin: 0; font-size: var(--text-xs); color: var(--color-muted); }
.field-error { margin: 0; font-size: var(--text-sm); color: var(--color-danger); min-height: 0; }
.field-error:empty { display: none; }
.form { display: flex; flex-direction: column; gap: var(--space-4); }
.form-message { margin: 0; color: var(--color-danger); font-size: var(--text-sm); font-weight: 550; }
.form-message:empty { display: none; }

/* ---------- States ---------- */
.state { display: flex; flex-direction: column; align-items: center; text-align: center; gap: var(--space-2); padding: var(--space-12) var(--space-4); }
.state-loading { flex-direction: row; justify-content: center; color: var(--color-muted); }
.state-icon { display: grid; place-items: center; width: 64px; height: 64px; border-radius: var(--radius-full); background: var(--color-surface-2); color: var(--color-muted); margin-bottom: var(--space-2); }
.state-error .state-icon, .state-offline .state-icon { background: var(--color-danger-soft); color: var(--color-danger); }
.state-denied .state-icon { background: var(--color-warning-soft); color: var(--color-warning); }
.state-success .state-icon { background: var(--color-success-soft); color: var(--color-success); }
.state-title { font-size: var(--text-xl); margin: 0; }
.state-message { color: var(--color-muted); max-width: 460px; margin: 0; }
.state-actions { display: flex; gap: var(--space-3); flex-wrap: wrap; justify-content: center; margin-top: var(--space-4); }
.big-code { font-size: 5rem; font-weight: 800; line-height: 1; background: var(--gradient-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }
.spinner { width: 22px; height: 22px; border: 3px solid var(--color-border-strong); border-top-color: var(--color-primary); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.skeleton-card { padding-bottom: var(--space-5); }
.sk { background: linear-gradient(90deg, var(--color-surface-2) 25%, var(--color-border) 50%, var(--color-surface-2) 75%); background-size: 200% 100%; animation: shimmer 1.4s infinite; border-radius: var(--radius-sm); }
.sk-thumb { aspect-ratio: 16 / 9; border-radius: 0; }
.sk-line { height: 14px; margin: var(--space-4) var(--space-5) 0; }
.sk-line.short { width: 50%; }
@keyframes shimmer { to { background-position: -200% 0; } }
@media (prefers-reduced-motion: reduce) { .sk, .spinner, .btn.is-busy::after { animation-duration: 3s; } }

/* ---------- Notice ---------- */
.notice { display: flex; align-items: flex-start; gap: var(--space-2); flex-wrap: wrap; padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); background: var(--color-info-soft); color: var(--color-text); font-size: var(--text-sm); margin-bottom: var(--space-4); }
.notice .icon { color: var(--color-info); margin-top: 2px; }
.notice-success { background: var(--color-success-soft); } .notice-success .icon { color: var(--color-success); }
.notice-warning { background: var(--color-warning-soft); } .notice-warning .icon { color: var(--color-warning); }

/* ---------- Panel / stats ---------- */
.panel { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-5); margin-bottom: var(--space-6); }
.panel-title { display: flex; align-items: center; gap: var(--space-2); font-size: var(--text-lg); margin-bottom: var(--space-4); }
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); margin-bottom: var(--space-6); }
@media (min-width: 1024px) { .stats-grid { grid-template-columns: repeat(4, 1fr); } .stats-grid.small { grid-template-columns: repeat(3, 1fr); } }
.stats-grid.small { grid-template-columns: repeat(3, 1fr); margin-bottom: var(--space-4); }
.stat-card { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-4); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); min-width: 0; }
.stat-icon { display: grid; place-items: center; width: 44px; height: 44px; flex-shrink: 0; border-radius: var(--radius-md); background: var(--color-primary-soft); color: var(--color-primary); }
.tone-success .stat-icon { background: var(--color-success-soft); color: var(--color-success); }
.tone-warning .stat-icon { background: var(--color-warning-soft); color: var(--color-warning); }
.tone-info .stat-icon { background: var(--color-info-soft); color: var(--color-info); }
.stat-value { font-size: var(--text-xl); font-weight: 750; line-height: 1.2; }
.stat-label { font-size: var(--text-xs); color: var(--color-muted); }
@media (max-width: 479px) { .stats-grid.small { grid-template-columns: 1fr; } .stat-card { padding: var(--space-3); } .stat-icon { width: 36px; height: 36px; } }

/* ---------- Table (responsive: thành dạng thẻ trên mobile) ---------- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); }
.table th { text-align: left; font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-muted); padding: var(--space-3); border-bottom: 1px solid var(--color-border); }
.table td { padding: var(--space-3); border-bottom: 1px solid var(--color-border); vertical-align: middle; }
.table tbody tr:hover { background: var(--color-surface-2); }
@media (max-width: 767px) {
  .table.responsive thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .table.responsive tr { display: block; border: 1px solid var(--color-border); border-radius: var(--radius-md); margin-bottom: var(--space-3); padding: var(--space-2) var(--space-3); }
  .table.responsive td { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); border: 0; padding: var(--space-2) 0; text-align: right; }
  .table.responsive td::before { content: attr(data-label); font-weight: 600; color: var(--color-muted); text-align: left; font-size: var(--text-xs); }
  .table.responsive td:not([data-label]) { justify-content: flex-end; }
}
.user-cell { display: flex; align-items: center; gap: var(--space-3); text-align: left; }

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: var(--space-1); border-bottom: 1px solid var(--color-border); margin-bottom: var(--space-6); overflow-x: auto; scrollbar-width: none; }
.tab { display: inline-flex; align-items: center; gap: var(--space-2); min-height: var(--touch); padding: 0 var(--space-4); border: 0; background: none; border-bottom: 2px solid transparent; color: var(--color-muted); font-weight: 600; white-space: nowrap; margin-bottom: -1px; }
.tab[aria-selected="true"] { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.toolbar { display: flex; gap: var(--space-3); margin-bottom: var(--space-4); flex-wrap: wrap; }

/* ---------- Toast ---------- */
.toast-region { position: fixed; z-index: var(--z-toast); right: var(--space-4); bottom: max(var(--space-4), env(safe-area-inset-bottom)); display: flex; flex-direction: column; gap: var(--space-2); width: min(380px, calc(100vw - 2rem)); }
.toast { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3) var(--space-3) var(--space-3) var(--space-4); background: var(--color-surface); border: 1px solid var(--color-border); border-left: 4px solid var(--color-info); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); font-size: var(--text-sm); animation: toast-in var(--dur) var(--ease); }
.toast span { flex: 1; }
.toast-success { border-left-color: var(--color-success); } .toast-success > .icon { color: var(--color-success); }
.toast-error { border-left-color: var(--color-danger); } .toast-error > .icon { color: var(--color-danger); }
.toast-info > .icon { color: var(--color-info); }
.toast.leaving { opacity: 0; transform: translateY(8px); transition: all var(--dur) var(--ease); }
.toast-close { display: grid; place-items: center; width: 32px; height: 32px; border: 0; background: none; border-radius: var(--radius-sm); color: var(--color-muted); }
@keyframes toast-in { from { opacity: 0; transform: translateY(12px); } }

/* ---------- Modal ---------- */
.modal-overlay { position: fixed; inset: 0; z-index: var(--z-modal); background: rgba(15, 23, 42, 0.55); display: flex; align-items: center; justify-content: center; padding: var(--space-4); animation: fade var(--dur) var(--ease); }
.modal { width: min(560px, 100%); max-height: calc(100vh - 2rem); max-height: calc(100dvh - 2rem); display: flex; flex-direction: column; background: var(--color-surface); border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); }
.modal-head { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); padding: var(--space-4) var(--space-4) 0 var(--space-6); }
.modal-head h2 { margin: 0; font-size: var(--text-xl); }
.modal-body { padding: var(--space-4) var(--space-6); overflow-y: auto; }
.modal-foot { display: flex; justify-content: flex-end; gap: var(--space-3); padding: var(--space-4) var(--space-6) var(--space-6); flex-wrap: wrap; }
@keyframes fade { from { opacity: 0; } }
@media (max-width: 639px) { .modal-overlay { align-items: flex-end; padding: 0; } .modal { border-radius: var(--radius-xl) var(--radius-xl) 0 0; max-height: 92dvh; padding-bottom: env(safe-area-inset-bottom); } }

/* ---------- Breadcrumb / page header ---------- */
.breadcrumb { display: flex; flex-wrap: wrap; gap: var(--space-2); font-size: var(--text-sm); color: var(--color-muted); margin-bottom: var(--space-3); }
.breadcrumb a { color: var(--color-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--color-primary); }
.page-header { display: flex; justify-content: space-between; align-items: flex-end; gap: var(--space-4); flex-wrap: wrap; margin-bottom: var(--space-6); }
.page-header .lead { margin: 0; color: var(--color-muted); }
.page-actions { display: flex; gap: var(--space-2); }

/* ---------- Lists ---------- */
.check-list { list-style: none; padding: 0; display: grid; gap: var(--space-3); }
.check-list li { display: flex; gap: var(--space-3); align-items: flex-start; }
.check-list .icon { color: var(--color-success); margin-top: 3px; }
@media (min-width: 768px) { .check-list.two-col { grid-template-columns: 1fr 1fr; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-surface); border-top: 1px solid var(--color-border); padding: var(--space-12) 0 max(var(--space-6), env(safe-area-inset-bottom)); margin-top: auto; }
.footer-grid { display: grid; gap: var(--space-8); grid-template-columns: 1fr; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1.3fr; } }
.site-footer h2 { font-size: var(--text-sm); text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-muted); }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-2); font-size: var(--text-sm); }
.site-footer a { color: var(--color-text-2); text-decoration: none; }
.site-footer a:hover { color: var(--color-primary); }
.footer-brand p { color: var(--color-muted); font-size: var(--text-sm); margin-top: var(--space-3); }
.footer-bottom { margin-top: var(--space-8); padding-top: var(--space-6); border-top: 1px solid var(--color-border); font-size: var(--text-xs); color: var(--color-muted); }