/* ═══════════════════════════════════════════
   EQUIPE VEGA SOM — App Layout
   ═══════════════════════════════════════════ */

/* ── App Shell ── */
.app { display: flex; min-height: 100vh; }

/* ── Sidebar ── */
.sidebar {
  position: fixed;
  left: 0; top: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--gradient-sidebar);
  border-right: 1px solid var(--border-color);
  z-index: var(--z-sticky);
  display: flex;
  flex-direction: column;
  transition: width var(--transition-base);
  overflow: hidden;
}
.sidebar.collapsed { width: var(--sidebar-collapsed); }

.sidebar-brand {
  padding: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  border-bottom: 1px solid var(--border-color);
}
.sidebar-brand-logo {
  width: 42px; height: 42px;
  background: var(--gradient-gold);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--black);
  font-weight: 900;
}
.sidebar-brand-text {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  color: var(--gold);
  letter-spacing: 2px;
  line-height: 1.2;
}
.sidebar.collapsed .sidebar-brand-text { display: none; }

.sidebar-nav { flex: 1; padding: var(--space-4) 0; overflow-y: auto; }

.sidebar-section {
  padding: var(--space-2) var(--space-6);
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
}
.sidebar.collapsed .sidebar-section { display: none; }

.nav-item {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
  border-left: 3px solid transparent;
  white-space: nowrap;
}
.nav-item:hover { color: var(--gold); background: var(--bg-hover); }
.nav-item.active {
  color: var(--gold);
  background: rgba(255,215,0,0.08);
  border-left-color: var(--gold);
}
.nav-item-icon {
  width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-lg);
  flex-shrink: 0;
}
.sidebar.collapsed .nav-item-label { display: none; }
.sidebar.collapsed .nav-item { padding: var(--space-3); justify-content: center; border-left: none; }

.sidebar-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-color);
}
.sidebar-user {
  display: flex; align-items: center; gap: var(--space-3);
}
.sidebar-user-name {
  font-size: var(--text-sm);
  font-weight: 600;
}
.sidebar-user-name.master { color: var(--gold); }
.sidebar-user-name.dj { color: var(--gold-light); }
.sidebar.collapsed .sidebar-user-name { display: none; }

/* ── Main Content ── */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left var(--transition-base);
}
.sidebar.collapsed ~ .main-content { margin-left: var(--sidebar-collapsed); }

/* ── Header ── */
.header {
  height: var(--header-height);
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-6);
  position: sticky; top: 0;
  z-index: var(--z-sticky);
}

.header-left { display: flex; align-items: center; gap: var(--space-4); }
.header-toggle { font-size: var(--text-xl); color: var(--text-secondary); cursor: pointer; }
.header-toggle:hover { color: var(--gold); }

.header-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--white);
}

.header-search {
  position: relative;
  flex: 1;
  max-width: 400px;
}
.header-search-input {
  width: 100%;
  background: var(--gray-800);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4) var(--space-2) var(--space-10);
  color: var(--white);
  font-size: var(--text-sm);
}
.header-search-input:focus { border-color: var(--gold); }
.header-search-icon {
  position: absolute; left: var(--space-4); top: 50%; transform: translateY(-50%);
  color: var(--text-muted);
}

.header-right { display: flex; align-items: center; gap: var(--space-4); }
.header-notification {
  position: relative;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  cursor: pointer;
}
.header-notification:hover { background: var(--bg-hover); color: var(--gold); }
.notification-badge {
  position: absolute; top: 4px; right: 4px;
  width: 8px; height: 8px;
  background: var(--red);
  border-radius: var(--radius-full);
}

/* ── Page Content ── */
.page-content {
  flex: 1;
  padding: var(--space-6);
  padding-bottom: calc(var(--player-height) + var(--space-6));
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-6);
}
.page-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--gold);
}
.page-subtitle {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: var(--space-1);
}

/* ── Player Bar ── */
.player-bar {
  position: fixed;
  bottom: 0; left: var(--sidebar-width); right: 0;
  height: var(--player-height);
  background: var(--gray-900);
  border-top: 1px solid var(--gold-dark);
  display: flex;
  align-items: center;
  padding: 0 var(--space-6);
  z-index: var(--z-sticky);
  transition: left var(--transition-base);
}
.sidebar.collapsed ~ .main-content .player-bar { left: var(--sidebar-collapsed); }

.player-left {
  display: flex; align-items: center; gap: var(--space-3);
  flex: 0 0 250px;
}
.player-cover {
  width: 48px; height: 48px;
  background: var(--gradient-gold);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
}
.player-info { overflow: hidden; }
.player-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.player-artist {
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

.player-center {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}
.player-controls {
  display: flex; align-items: center; gap: var(--space-4);
}
.player-btn {
  color: var(--text-secondary);
  font-size: var(--text-xl);
  transition: color var(--transition-fast);
}
.player-btn:hover { color: var(--white); }
.player-btn.active { color: var(--gold); }
.player-btn-play {
  width: 40px; height: 40px;
  background: var(--gold);
  color: var(--black);
  border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-lg);
}
.player-btn-play:hover { transform: scale(1.05); box-shadow: var(--shadow-gold); }

.player-progress {
  display: flex; align-items: center; gap: var(--space-2);
  width: 100%;
  max-width: 600px;
}
.player-time {
  font-size: var(--text-xs);
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  min-width: 40px;
}
.player-progress-bar {
  flex: 1;
  height: 4px;
  background: var(--gray-700);
  border-radius: var(--radius-full);
  cursor: pointer;
  position: relative;
}
.player-progress-fill {
  height: 100%;
  background: var(--gold);
  border-radius: var(--radius-full);
  width: 0%;
  transition: width 0.1s linear;
}
.player-progress-bar:hover .player-progress-fill { height: 6px; margin-top: -1px; }

.player-right {
  flex: 0 0 180px;
  display: flex; align-items: center; justify-content: flex-end; gap: var(--space-3);
}
.player-volume {
  display: flex; align-items: center; gap: var(--space-2);
}
.player-volume-bar {
  width: 80px;
  height: 4px;
  background: var(--gray-700);
  border-radius: var(--radius-full);
  cursor: pointer;
}

/* ── Grid Layouts ── */
.grid-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4);
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-4);
}

.grid-table {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.mobile-open { transform: translateX(0); }
  .main-content { margin-left: 0 !important; }
  .player-bar { left: 0 !important; }
  .header-search { max-width: 200px; }
}

@media (max-width: 768px) {
  .page-content { padding: var(--space-4); }
  .grid-stats { grid-template-columns: repeat(2, 1fr); }
  .player-left { flex: 0 0 auto; }
  .player-right { display: none; }
  .header-search { display: none; }
}

@media (max-width: 480px) {
  .grid-stats { grid-template-columns: 1fr; }
  .player-progress { display: none; }
  .player-left { flex: 0 0 auto; }
  .player-center { flex-direction: row; }
}