/* ============================================================
   GradSpark — Organisms (Stage 4)
   Composes atoms + molecules. Zero new colors / spacing values —
   only tokens from Stage 1.
   ============================================================ */

/* ============================================================
   Topbar — public marketing & app shell
   ============================================================ */
.gs-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: var(--space-6);
  height: 72px;
  padding: 0 var(--space-8);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-default);
  transition: box-shadow var(--duration-2) var(--ease-out);
}
.gs-topbar[data-elevated="true"] { box-shadow: var(--shadow-1); }
.gs-topbar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--text-primary);
  font-weight: var(--fw-bold);
  font-size: 18px;
}
.gs-topbar__logo {
  width: 28px; height: 28px;
  border-radius: 6px;
  background: var(--action-primary-default);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.gs-topbar__nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.gs-topbar__link {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: var(--fw-medium);
  text-decoration: none;
  padding: var(--space-2) var(--space-1);
  border-radius: var(--radius-sm);
}
.gs-topbar__link:hover { color: var(--text-primary); text-decoration: none; }
.gs-topbar__link[aria-current="page"] { color: var(--action-primary-default); }
.gs-topbar__spacer { flex: 1; }
.gs-topbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* App topbar variant — denser, with search */
.gs-topbar--app { height: 64px; padding: 0 var(--space-6); }
.gs-topbar--app .gs-topbar__nav { display: none; }

/* App-shell sticky topbar — overrides the default fixed positioning
   so the topbar stays in flow inside the flex column layout */
.gs-topbar--sticky {
  position: sticky;
  top: 0;
  left: auto;
  right: auto;
  z-index: 20;
}

/* Hamburger button — hidden on desktop */
.gs-topbar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
}
.gs-topbar__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}
.gs-topbar__hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.gs-topbar__hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.gs-topbar__hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav drawer */
.gs-mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  top: 56px;
  z-index: 100;
  background: var(--bg-surface);
  padding: var(--space-6);
  flex-direction: column;
  gap: var(--space-4);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.28s var(--ease-out, ease);
  border-top: 1px solid var(--border-default);
}
.gs-mobile-nav nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.gs-mobile-nav .gs-topbar__link {
  font-size: 16px;
  padding: var(--space-3) var(--space-2);
  border-bottom: 1px solid var(--border-default);
}
.gs-mobile-nav__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

@media (max-width: 767px) {
  .gs-topbar { height: 56px; padding: 0 var(--space-4); gap: var(--space-3); }
  .gs-topbar__nav { display: none; }
  .gs-topbar__desktop-only { display: none !important; }
  .gs-topbar__hamburger { display: flex; }
  .gs-mobile-nav { display: flex; }
  .gs-mobile-nav--open { transform: translateX(0); }
}

/* ============================================================
   Sidebar
   ============================================================ */
.gs-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 240px;
  flex: 0 0 240px;
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-default);
  transition: width var(--duration-3) var(--ease-out), flex-basis var(--duration-3) var(--ease-out);
  overflow: hidden;
}
.gs-sidebar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  height: 64px;
  padding: 0 var(--space-4);
  border-bottom: 1px solid var(--border-default);
  font-weight: var(--fw-bold);
  font-size: 16px;
  color: var(--text-primary);
  text-decoration: none;
  flex: 0 0 auto;
}
.gs-sidebar__nav {
  flex: 1;
  padding: var(--space-4) var(--space-2);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  overflow-y: auto;
}
.gs-sidebar__group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.gs-sidebar__group-title {
  font-size: 11px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--text-tertiary);
  padding: var(--space-2) var(--space-3);
}
.gs-sidebar__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: var(--fw-medium);
  white-space: nowrap;
  transition: background-color var(--duration-2) var(--ease-out), color var(--duration-2) var(--ease-out);
}
.gs-sidebar__item:hover { background: var(--bg-muted); color: var(--text-primary); }
.gs-sidebar__item[aria-current="page"],
.gs-sidebar__item--active {
  background: var(--color-blue-100);
  color: var(--color-blue-700);
}
[data-theme="dark"] .gs-sidebar__item[aria-current="page"],
[data-theme="dark"] .gs-sidebar__item--active {
  background: rgba(37,99,235,0.18);
  color: var(--color-blue-300);
}
.gs-sidebar__item .gs-icon { flex: 0 0 auto; }
.gs-sidebar__item-label { flex: 1; overflow: hidden; text-overflow: ellipsis; }
.gs-sidebar__item .gs-badge { flex: 0 0 auto; }

.gs-sidebar__footer {
  border-top: 1px solid var(--border-default);
  padding: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex: 0 0 auto;
}
.gs-sidebar__footer-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.gs-sidebar__footer-name { font-size: 13px; font-weight: var(--fw-semibold); color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.gs-sidebar__footer-sub  { font-size: 12px; color: var(--text-tertiary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Collapsed variant — 72px, icon-only */
.gs-sidebar[data-collapsed="true"] { width: 72px; flex-basis: 72px; }
.gs-sidebar[data-collapsed="true"] .gs-sidebar__item { justify-content: center; padding: var(--space-2); }
.gs-sidebar[data-collapsed="true"] .gs-sidebar__item-label,
.gs-sidebar[data-collapsed="true"] .gs-sidebar__item .gs-badge,
.gs-sidebar[data-collapsed="true"] .gs-sidebar__group-title,
.gs-sidebar[data-collapsed="true"] .gs-sidebar__brand-text,
.gs-sidebar[data-collapsed="true"] .gs-sidebar__footer-main { display: none; }
.gs-sidebar[data-collapsed="true"] .gs-sidebar__brand { justify-content: center; padding: 0; }

/* App shell layout */
.gs-app {
  display: flex;
  align-items: stretch;
  min-height: 100vh;
  background: var(--bg-canvas);
}
.gs-app__main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.gs-app__content {
  padding: var(--space-8);
  flex: 1;
}
@media (max-width: 1023px) {
  /* Sidebar becomes a slide-in drawer on mobile */
  .gs-sidebar {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 260px;
    z-index: 300;
    transform: translateX(-100%);
    transition: transform 0.28s var(--ease-out, ease);
    box-shadow: 4px 0 24px rgba(0,0,0,0.14);
  }
  .gs-sidebar[data-mobile-open="true"] { transform: translateX(0); }

  /* Semi-transparent backdrop behind the drawer */
  #gs-sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 299;
    cursor: pointer;
  }
  #gs-sidebar-backdrop[data-open="true"] { display: block; }

  .gs-app__content { padding: var(--space-4); }
}

/* ── Mobile topbar logo (hidden on desktop) ── */
.gs-topbar__mobile-brand {
  display: none;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  white-space: nowrap;
}
.gs-topbar__mobile-brand img { height: 28px; width: auto; }

/* ── Mobile bottom navigation bar ── */
.gs-bottom-nav { display: none; }

@media (max-width: 1023px) {
  /* Reveal logo in topbar, hide search */
  .gs-topbar--app .gs-search { display: none; }
  .gs-topbar--app { padding: 0 var(--space-4); }
  .gs-topbar__mobile-brand { display: flex; }

  /* Extra bottom padding so content isn't hidden behind nav */
  .gs-app__content { padding-bottom: 76px; }

  /* Bottom nav bar */
  .gs-bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--bg-surface);
    border-top: 1px solid var(--border-default);
    box-shadow: 0 -2px 12px rgba(0,0,0,0.08);
    z-index: 200;
  }
  .gs-bottom-nav__item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    text-decoration: none;
    color: var(--text-tertiary);
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.1px;
    padding: 8px 4px;
    transition: color 0.15s;
    position: relative;
  }
  .gs-bottom-nav__item:hover { color: var(--text-secondary); }
  .gs-bottom-nav__item--active { color: var(--color-blue-600); }
  .gs-bottom-nav__item--active::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20%;
    right: 20%;
    height: 2px;
    background: var(--color-blue-600);
    border-radius: 0 0 2px 2px;
  }
  .gs-bottom-nav__item .gs-icon { width: 22px; height: 22px; flex-shrink: 0; }
}

/* ============================================================
   Card — base + Feature / Exam / Course / Job / Stat / Empty
   ============================================================ */
.gs-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: box-shadow var(--duration-3) var(--ease-out), transform var(--duration-3) var(--ease-out), border-color var(--duration-2) var(--ease-out);
}
.gs-card:hover {
  box-shadow: var(--shadow-3);
  transform: translateY(-2px);
  border-color: var(--border-strong);
}
.gs-card--interactive { cursor: pointer; }
.gs-card__header { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-3); }
.gs-card__title { font-size: 18px; line-height: 26px; font-weight: var(--fw-semibold); color: var(--text-primary); }
.gs-card__sub { font-size: 14px; color: var(--text-secondary); }
.gs-card__media {
  height: 160px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-blue-500), var(--color-blue-700));
  margin: calc(-1 * var(--space-6)) calc(-1 * var(--space-6)) 0;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.gs-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-2);
  margin-top: auto;
}
.gs-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  color: var(--text-tertiary);
  font-size: 13px;
}
.gs-card__meta-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

/* Feature card — for marketing grid */
.gs-card--feature .gs-card__icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-blue-100);
  color: var(--color-blue-700);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Stat card */
.gs-card--stat { padding: var(--space-5); gap: var(--space-2); }
.gs-card__stat-label { font-size: 13px; color: var(--text-tertiary); font-weight: var(--fw-medium); }
.gs-card__stat-value { font-size: 32px; line-height: 40px; font-weight: var(--fw-bold); color: var(--text-primary); letter-spacing: -0.5px; }
.gs-card__stat-trend { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; font-weight: var(--fw-semibold); }
.gs-card__stat-trend--up { color: var(--status-success-fg); }
.gs-card__stat-trend--down { color: var(--action-danger-default); }

/* Course thumbnail tint */
.gs-card--course .gs-card__media { background: linear-gradient(135deg, var(--color-green-500), var(--color-green-700)); }
.gs-card--job .gs-card__media { display: none; }
.gs-card--job { padding: var(--space-5); gap: var(--space-3); }
.gs-card--job .gs-card__company {
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  background: var(--bg-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
}

/* Pricing chunk */
.gs-card__price {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}
.gs-card__price-amount { font-size: 22px; font-weight: var(--fw-bold); color: var(--text-primary); }
.gs-card__price-original { font-size: 14px; color: var(--text-tertiary); text-decoration: line-through; }
.gs-card__price-discount { font-size: 13px; color: var(--status-success-fg); font-weight: var(--fw-semibold); }

/* ============================================================
   Table
   ============================================================ */
.gs-table-wrap {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.gs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.gs-table thead {
  background: var(--bg-muted);
}
.gs-table th {
  text-align: left;
  font-size: 12px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--text-tertiary);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-default);
  white-space: nowrap;
}
.gs-table th[aria-sort] {
  cursor: pointer;
  user-select: none;
}
.gs-table th[aria-sort]::after {
  content: "↕";
  margin-left: 6px;
  opacity: 0.4;
}
.gs-table th[aria-sort="ascending"]::after { content: "↑"; opacity: 1; color: var(--text-primary); }
.gs-table th[aria-sort="descending"]::after { content: "↓"; opacity: 1; color: var(--text-primary); }
.gs-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-default);
  color: var(--text-primary);
  vertical-align: middle;
}
.gs-table tbody tr:last-child td { border-bottom: 0; }
.gs-table tbody tr { transition: background-color var(--duration-2) var(--ease-out); }
.gs-table tbody tr:hover { background: var(--bg-muted); }
.gs-table tbody tr[aria-selected="true"] { background: var(--color-blue-50); }
[data-theme="dark"] .gs-table tbody tr[aria-selected="true"] { background: rgba(37,99,235,0.15); }

.gs-table__cell--num { text-align: right; font-variant-numeric: tabular-nums; }
.gs-table__cell--center { text-align: center; }
.gs-table__cell--actions { width: 1px; white-space: nowrap; text-align: right; }

/* Header cells must honour the alignment modifiers too — otherwise the more
   specific `.gs-table th { text-align: left }` wins and numeric/action column
   titles fall out of line with their right-aligned data cells. */
.gs-table th.gs-table__cell--num     { text-align: right; }
.gs-table th.gs-table__cell--center  { text-align: center; }
.gs-table th.gs-table__cell--actions { text-align: right; }

.gs-table-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-default);
}

.gs-table-empty {
  padding: var(--space-12) var(--space-6);
  text-align: center;
  color: var(--text-tertiary);
}

/* ============================================================
   Modal
   ============================================================ */
.gs-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(17, 24, 39, 0.5);
  z-index: 50;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  transition: opacity var(--duration-3) var(--ease-out);
}
.gs-modal-backdrop[data-open="true"] {
  display: flex;
  opacity: 1;
}

.gs-modal {
  width: 100%;
  max-width: 480px;
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-4);
  display: flex;
  flex-direction: column;
  max-height: 90vh;
  transform: scale(0.96) translateY(8px);
  opacity: 0;
  transition: transform var(--duration-3) var(--ease-out), opacity var(--duration-3) var(--ease-out);
}
.gs-modal-backdrop[data-open="true"] .gs-modal {
  transform: scale(1) translateY(0);
  opacity: 1;
}
.gs-modal--sm { max-width: 400px; }
.gs-modal--md { max-width: 480px; }
.gs-modal--lg { max-width: 640px; }
.gs-modal--xl { max-width: 800px; }

.gs-modal__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-6) var(--space-3);
}
.gs-modal__title-group { display: flex; flex-direction: column; gap: 4px; }
.gs-modal__title { font-size: 18px; font-weight: var(--fw-semibold); color: var(--text-primary); }
.gs-modal__sub { font-size: 14px; color: var(--text-secondary); }
.gs-modal__close { flex: 0 0 auto; margin: -8px -8px 0 0; }

.gs-modal__body {
  padding: var(--space-3) var(--space-6);
  flex: 1;
  overflow-y: auto;
}
.gs-modal__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6) var(--space-5);
  border-top: 1px solid var(--border-default);
  margin-top: var(--space-4);
}
.gs-modal__footer--start { justify-content: flex-start; }
.gs-modal__footer--between { justify-content: space-between; }

/* ============================================================
   Drawer (right + bottom)
   ============================================================ */
.gs-drawer {
  position: fixed;
  background: var(--bg-surface);
  z-index: 50;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-4);
  transition: transform var(--duration-3) var(--ease-out);
}
/* right (default) */
.gs-drawer {
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 420px;
  transform: translateX(100%);
}
.gs-drawer-backdrop[data-open="true"] .gs-drawer { transform: translateX(0); }

.gs-drawer--bottom {
  top: auto;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  max-width: none;
  max-height: 80vh;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  transform: translateY(100%);
}
.gs-drawer-backdrop[data-open="true"] .gs-drawer--bottom { transform: translateY(0); }

.gs-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(17,24,39,0.5);
  z-index: 49;
  display: none;
  opacity: 0;
  transition: opacity var(--duration-3) var(--ease-out);
}
.gs-drawer-backdrop[data-open="true"] { display: block; opacity: 1; }

.gs-drawer__handle {
  width: 40px;
  height: 4px;
  border-radius: 2px;
  background: var(--border-strong);
  margin: var(--space-3) auto var(--space-2);
}
.gs-drawer__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-6) var(--space-3);
  border-bottom: 1px solid var(--border-default);
}
.gs-drawer__title { font-size: 18px; font-weight: var(--fw-semibold); }
.gs-drawer__body { flex: 1; overflow-y: auto; padding: var(--space-5) var(--space-6); }
.gs-drawer__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-default);
}

/* ============================================================
   Alert · Banner · Toast — feedback family
   ============================================================ */
.gs-alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid;
  background: var(--status-info-bg);
  border-color: var(--status-info-border);
  color: var(--status-info-fg);
}
.gs-alert--success { background: var(--status-success-bg); border-color: var(--status-success-border); color: var(--status-success-fg); }
.gs-alert--warning { background: var(--status-warning-bg); border-color: var(--status-warning-border); color: var(--status-warning-fg); }
.gs-alert--danger  { background: var(--status-danger-bg);  border-color: var(--status-danger-border);  color: var(--status-danger-fg); }

.gs-alert__icon { flex: 0 0 auto; margin-top: 2px; }
.gs-alert__main { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.gs-alert__title { font-weight: var(--fw-semibold); font-size: 14px; }
.gs-alert__body  { font-size: 14px; color: inherit; opacity: 0.9; }
.gs-alert__close { color: inherit; opacity: 0.7; flex: 0 0 auto; margin: -4px -4px 0 0; }
.gs-alert__close:hover { opacity: 1; }

/* Banner — full-bleed page-top notice */
.gs-banner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  background: var(--color-blue-700);
  color: #fff;
  font-size: 14px;
}
.gs-banner__cta { color: #fff; text-decoration: underline; font-weight: var(--fw-semibold); }
.gs-banner__close { color: #fff; opacity: 0.7; margin-left: auto; }

/* Toast container — fixed top-right; toasts stack */
.gs-toast-region {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
  width: 360px;
  max-width: calc(100vw - var(--space-8));
}
.gs-toast {
  pointer-events: auto;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-left: 4px solid var(--action-primary-default);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-3);
  animation: gs-toast-in var(--duration-3) var(--ease-out);
}
.gs-toast--success { border-left-color: var(--color-green-500); }
.gs-toast--warning { border-left-color: var(--color-amber-500); }
.gs-toast--danger  { border-left-color: var(--color-red-500); }
.gs-toast__icon { flex: 0 0 auto; margin-top: 2px; color: var(--text-secondary); }
.gs-toast--success .gs-toast__icon { color: var(--status-success-fg); }
.gs-toast--warning .gs-toast__icon { color: var(--status-warning-fg); }
.gs-toast--danger  .gs-toast__icon { color: var(--status-danger-fg); }
.gs-toast__main { flex: 1; min-width: 0; }
.gs-toast__title { font-weight: var(--fw-semibold); font-size: 14px; color: var(--text-primary); }
.gs-toast__body  { font-size: 13px; color: var(--text-secondary); margin-top: 2px; }
.gs-toast__close { flex: 0 0 auto; margin: -2px -4px 0 0; }
@keyframes gs-toast-in {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}
.gs-toast--leaving { animation: gs-toast-out var(--duration-3) var(--ease-out) forwards; }
@keyframes gs-toast-out {
  to { opacity: 0; transform: translateX(20px); }
}

/* ============================================================
   Empty state
   ============================================================ */
.gs-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
  padding: var(--space-12) var(--space-6);
  color: var(--text-secondary);
}
.gs-empty__art {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--bg-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  margin-bottom: var(--space-2);
}
.gs-empty__title { font-size: 18px; font-weight: var(--fw-semibold); color: var(--text-primary); }
.gs-empty__body  { font-size: 14px; color: var(--text-secondary); max-width: 360px; }

/* ============================================================
   Footer (marketing) — quick organism
   ============================================================ */
.gs-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-default);
  padding: var(--space-12) var(--space-8) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}
.gs-footer__cols {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--space-8);
}
@media (max-width: 767px) {
  .gs-footer__cols { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
}
.gs-footer__col h4 { font-size: 13px; font-weight: var(--fw-semibold); color: var(--text-primary); margin-bottom: var(--space-3); }
.gs-footer__col ul { display: flex; flex-direction: column; gap: var(--space-2); }
.gs-footer__col a { color: var(--text-secondary); font-size: 14px; text-decoration: none; }
.gs-footer__col a:hover { color: var(--text-primary); text-decoration: underline; }
.gs-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-default);
  padding-top: var(--space-4);
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ── User menu dropdown ───────────────────────────────────────────── */
.gs-user-menu {
  position: relative;
}
.gs-user-menu__trigger {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 10px;
  background: transparent;
  border: 1.5px solid var(--border-default);
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-size: 14px;
  font-weight: var(--fw-medium);
  color: var(--text-primary);
  transition: background 0.15s, border-color 0.15s;
}
.gs-user-menu__trigger:hover {
  background: var(--surface-secondary, #f4f6f8);
  border-color: var(--border-strong, #c0c8d2);
}
.gs-user-menu__avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4f8cff, #2563eb);
  color: #fff;
  font-size: 12px;
  font-weight: var(--fw-bold);
  flex-shrink: 0;
}
.gs-user-menu__name {
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.gs-user-menu__caret {
  transition: transform 0.2s;
}
.gs-user-menu__trigger[aria-expanded="true"] .gs-user-menu__caret {
  transform: rotate(180deg);
}
.gs-user-menu__dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 192px;
  background: var(--surface-primary, #fff);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  z-index: 200;
  padding: var(--space-1) 0;
  animation: gs-dropdown-in 0.15s ease;
}
.gs-user-menu__dropdown--open {
  display: block;
}
@keyframes gs-dropdown-in {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.gs-user-menu__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 10px 16px;
  font-size: 14px;
  color: var(--text-primary);
  text-decoration: none;
  transition: background 0.12s;
  white-space: nowrap;
}
.gs-user-menu__item:hover {
  background: var(--surface-secondary, #f4f6f8);
  color: var(--text-primary);
  text-decoration: none;
}
.gs-user-menu__item--danger {
  color: var(--color-red-600, #dc2626);
}
.gs-user-menu__item--danger:hover {
  background: var(--color-red-50, #fef2f2);
  color: var(--color-red-600, #dc2626);
}
.gs-user-menu__divider {
  height: 1px;
  background: var(--border-default);
  margin: var(--space-1) 0;
}