/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   LAYOUT — Shell, Sidebar, Grid
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

/* ── App Shell ── */

#app {
  display: flex;
  min-height: 100svh;
}

/* ── Sidebar ── */

.sidebar {
  width: var(--sidebar-w);
  min-height: 100svh;
  background: var(--dark);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  border-right: 1px solid var(--dark-border);
}

.sidebar-logo {
  padding: var(--space-6) var(--space-6) var(--space-5);
  border-bottom: 1px solid var(--dark-border);
}

.wordmark {
  display: inline-flex;
  flex-direction: column;
  line-height: 1;
  font-family: var(--fd);
  text-transform: uppercase;
}

.wordmark-first {
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: rgba(246,245,241,0.45);
  display: block;
}

.wordmark-last {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--light);
  display: block;
  margin-top: 1px;
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-4) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-family: var(--fd);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(246,245,241,0.38);
  transition: background var(--duration) var(--ease-out),
              color var(--duration) var(--ease-out);
  cursor: pointer;
  position: relative;
  user-select: none;
}

.nav-item:hover {
  background: var(--light-faint);
  color: rgba(246,245,241,0.7);
}

.nav-item.active {
  background: rgba(246,245,241,0.08);
  color: var(--light);
}

.nav-item svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  opacity: 0.7;
}

.nav-item.active svg {
  opacity: 1;
}

.nav-badge {
  margin-left: auto;
  background: var(--accent);
  color: #fff;
  font-family: var(--fd);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0;
  min-width: 16px;
  height: 16px;
  border-radius: 99px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  text-transform: none;
}

.sidebar-footer {
  padding: var(--space-4) var(--space-4) var(--space-5);
  border-top: 1px solid var(--dark-border);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.sidebar-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-faint);
  border: 1px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--fd);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--accent-on-dark);
  flex-shrink: 0;
  text-transform: uppercase;
}

.sidebar-user-info {
  flex: 1;
  min-width: 0;
}

.sidebar-user-name {
  font-family: var(--fd);
  font-size: 11px;
  font-weight: 600;
  color: var(--light);
  letter-spacing: 0.04em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: 10px;
  color: rgba(246,245,241,0.3);
  margin-top: 1px;
  text-transform: capitalize;
}

.sidebar-logout {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  color: rgba(246,245,241,0.28);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--duration), color var(--duration);
  flex-shrink: 0;
}

.sidebar-logout:hover {
  background: var(--light-faint);
  color: rgba(246,245,241,0.7);
}

.sidebar-logout svg { width: 14px; height: 14px; }

/* ── Main Content ── */

.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

.page {
  flex: 1;
  padding: var(--space-10) var(--space-10);
  max-width: 1200px;
  animation: slideUp var(--duration-md) var(--ease-out) both;
}

.page-header {
  margin-bottom: var(--space-8);
}

.page-title {
  font-family: var(--fd);
  font-weight: 700;
  font-size: var(--text-xl);
  letter-spacing: -0.015em;
  color: var(--ink);
  line-height: 1.15;
}

.page-subtitle {
  font-size: var(--text-base);
  color: var(--ink-mid);
  margin-top: var(--space-1);
  font-weight: 300;
}

/* ── Overlay / Modal backdrop ── */

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(12,12,10,0.5);
  z-index: 200;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: fadeIn var(--duration) var(--ease-out) both;
}

.overlay.closing {
  animation: fadeIn var(--duration) var(--ease-out) reverse both;
}

/* ── Toast container ── */

#toast-container {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}

/* ── Responsive ── */

@media (max-width: 900px) {
  .sidebar {
    width: 64px;
  }

  .wordmark-first,
  .wordmark-last { display: none; }

  .sidebar-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
  }

  .sidebar-logo::after {
    content: 'WN';
    font-family: var(--fd);
    font-weight: 800;
    font-size: 14px;
    color: var(--light);
    letter-spacing: 0.05em;
  }

  .nav-item span { display: none; }
  .nav-item { justify-content: center; padding: var(--space-3); }
  .nav-badge { position: absolute; top: 4px; right: 4px; }

  .sidebar-user-info,
  .sidebar-logout { display: none; }
  .sidebar-user { justify-content: center; }

  .main { margin-left: 64px; }
  .page { padding: var(--space-6) var(--space-6); }
}

@media (max-width: 600px) {
  .page { padding: var(--space-4) var(--space-4); }
}