/* shell.css — App shell v5 (Spotify-inspired structure, crème Improved) */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ─── Content tribal filigrane ─────────────────────────────── */
body.v5-shell::after {
  content: "";
  position: fixed;
  inset: 0;
  background: var(--tribal-url) center / 420px repeat;
  opacity: 0.06;
  pointer-events: none;
  z-index: 0;
}
#app { position: relative; z-index: 1; }

/* ─── Tech Grid (Dark Mode — La Grille Apparente) ─────────── */
[data-theme="dark"] .scroll-zone::after {
  content: "";
  position: fixed;
  inset: 0;
  background: var(--grid-pattern);
  background-size: var(--grid-size) var(--grid-size);
  pointer-events: none;
  z-index: -1;
  opacity: 0.5;
}

/* ─── Sidebar / header collapse ────────────────────────────── */
body.sidebar-collapsed { --sidebar-w: 72px; }

.sidebar-collapse-btn {
  display: none;
  margin-left: auto;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text-3);
  cursor: pointer;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  transition: transform var(--motion-fast) var(--ease-out), background var(--motion-fast);
}
.sidebar-collapse-btn:active { transform: scale(0.94); }
body.sidebar-collapsed .sidebar-collapse-btn svg {
  transform: rotate(180deg);
}

.page-header__collapse {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text-3);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: flex-start;
  margin-top: 2px;
  transition: transform var(--motion-fast) var(--ease-out);
}
.page-header__collapse:active { transform: scale(0.94); }
.page-header__collapse--on .page-header__collapse-icon,
body.page-header-collapsed .page-header__collapse-icon {
  transform: rotate(180deg);
}

body.page-header-collapsed .page-header__eyebrow,
body.page-header-collapsed .page-header__subtitle {
  display: none !important;
}
body.page-header-collapsed .page-header__title {
  font-size: 17px !important;
  font-weight: 800 !important;
  letter-spacing: -0.02em !important;
  white-space: nowrap;
}
body.page-header-collapsed .page-shell-v5 .page-header {
  padding-top: 10px;
  padding-bottom: 10px;
}
body.page-header-collapsed .page-header__actions {
  gap: 6px;
}
body.page-header-collapsed .page-header__actions .btn-sm {
  min-height: 36px;
  padding: 6px 10px;
  font-size: 11px;
}

/* ─── Desktop: offset for sidebar ──────────────────────────── */
@media (min-width: 900px) {
  body:has(.bottom-nav.visible) #app,
  body:has(#app-sidebar.visible) #app {
    width: calc(100vw - var(--sidebar-w)) !important;
    margin-left: var(--sidebar-w) !important;
  }
}

/* ─── SIDEBAR / BOTTOM NAV → rich desktop rail ─────────────── */
@media (min-width: 900px) {
  .bottom-nav,
  #app-sidebar.bottom-nav {
    flex-direction: column;
    width: var(--sidebar-w);
    height: 100dvh;
    left: 0;
    top: 0;
    border-right: 1px solid var(--border);
    border-top: none;
    padding: 18px 0 88px;
    justify-content: flex-start;
    gap: 2px;
    overflow-y: auto;
    overflow-x: hidden;
    background:
      linear-gradient(180deg, rgba(249, 249, 254, 0.94) 0%, rgba(249, 249, 254, 0.97) 100%),
      var(--tribal-url) no-repeat center / cover;
    box-shadow: inset -1px 0 0 rgba(255,255,255,0.4);
  }
  [data-theme="dark"] .bottom-nav,
  [data-theme="dark"] #app-sidebar.bottom-nav {
    background:
      linear-gradient(180deg, rgba(10, 10, 10, 0.94) 0%, rgba(10, 10, 10, 0.97) 100%),
      var(--tribal-url) no-repeat center / cover;
  }

  .nav-item {
    flex: none;
    flex-direction: row;
    margin: 2px 10px;
    padding: 11px 14px;
    gap: 12px;
    border-radius: var(--radius-md);
    justify-content: flex-start;
    position: relative;
  }
  .nav-label { font-size: 14px; font-weight: 650; letter-spacing: -0.01em; }
  .nav-dot { display: none; }
  .nav-item.active {
    background: rgba(var(--brand-green-rgb), 0.12);
    color: var(--brand);
  }
  .nav-item.active::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    bottom: 10px;
    width: 3px;
    border-radius: 0 3px 3px 0;
    background: var(--brand);
  }
  .nav-more-btn { display: none !important; }

  .sidebar-collapse-btn { display: flex; }

  body.sidebar-collapsed #sidebar-brand {
    flex-direction: column;
    gap: 8px;
    padding: 14px 8px 12px;
  }
  body.sidebar-collapsed .sidebar-brand-text,
  body.sidebar-collapsed .nav-label,
  body.sidebar-collapsed .nav-section-label,
  body.sidebar-collapsed .nav-group-header {
    display: none !important;
  }
  body.sidebar-collapsed .nav-group .nav-group-items {
    display: block !important;
    max-height: none !important;
    overflow: visible !important;
  }
  body.sidebar-collapsed .nav-item {
    justify-content: center;
    padding: 11px;
    margin: 2px 8px;
  }
  body.sidebar-collapsed .nav-item.active::before {
    top: 8px;
    bottom: 8px;
    left: 4px;
  }
  body.sidebar-collapsed .sidebar-collapse-btn {
    margin-left: 0;
  }

  .nav-section-label {
    display: block;
    padding: 16px 22px 6px;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-4);
  }
}

/* ─── Mobile tab bar — floating blur capsule ───────────────── */
@media (max-width: 899px) {
  .bottom-nav {
    left: 10px;
    right: 10px;
    bottom: max(8px, env(safe-area-inset-bottom, 0px));
    width: auto;
    height: 64px;
    padding: 0 6px;
    border-radius: 22px;
    border: 1px solid var(--border);
    background:
      linear-gradient(rgba(249, 249, 254, 0.88), rgba(249, 249, 254, 0.94)),
      var(--tribal-url) center / cover;
    backdrop-filter: blur(22px) saturate(1.2);
    -webkit-backdrop-filter: blur(22px) saturate(1.2);
    box-shadow: 0 10px 40px rgba(18, 20, 26, 0.10);
    gap: 0;
  }
  [data-theme="dark"] .bottom-nav {
    background:
      linear-gradient(rgba(10, 10, 10, 0.88), rgba(10, 10, 10, 0.94)),
      var(--tribal-url) center / cover;
  }
  .nav-item {
    border-radius: 18px;
    margin: 6px 2px;
    padding: 6px 4px;
  }
  .nav-item.active {
    background: rgba(var(--brand-green-rgb), 0.14);
    color: var(--brand);
  }
  .nav-label { font-size: 10px; font-weight: 700; }
  .nav-section-label { display: none; }
}

/* ─── Sabi now-playing bar ─────────────────────────────────── */
#sabi-nowbar {
  display: none;
  position: fixed;
  z-index: 90;
  left: 12px;
  right: 12px;
  height: var(--sabi-bar-h);
  padding: 0 14px;
  align-items: center;
  gap: 12px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background:
    linear-gradient(90deg, rgba(var(--brand-green-rgb), 0.12), rgba(242, 239, 233, 0.95)),
    var(--tribal-url) right / cover;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform var(--motion-base) var(--ease-out), opacity var(--motion-base) var(--ease-out);
}
#sabi-nowbar.visible { display: flex; }
#sabi-nowbar:active { transform: scale(0.985); }

@media (max-width: 899px) {
  #sabi-nowbar {
    bottom: calc(var(--tabbar-h) + 4px);
  }
  body:has(.bottom-nav.visible) #app .page-shell,
  body:has(.bottom-nav.visible) #app .page-shell-v5 {
    padding-bottom: calc(var(--tabbar-h) + 12px);
  }
}
@media (min-width: 900px) {
  #sabi-nowbar {
    left: calc(var(--sidebar-w) + 16px);
    right: 16px;
    bottom: 16px;
  }
  body:has(.bottom-nav.visible) #app .page-shell,
  body:has(.bottom-nav.visible) #app .page-shell-v5 {
    padding-bottom: 28px;
  }
}

.sabi-nowbar__icon {
  width: 36px; height: 36px;
  border-radius: 12px;
  background: var(--gradient-brand);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.sabi-nowbar__text { flex: 1; min-width: 0; }
.sabi-nowbar__title {
  font-size: 13px; font-weight: 800; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sabi-nowbar__sub {
  font-size: 11px; color: var(--text-3); font-weight: 600;
}
.sabi-nowbar__cta {
  font-size: 11px; font-weight: 800; color: var(--brand);
  text-transform: uppercase; letter-spacing: 0.04em;
  flex-shrink: 0;
}

/* Hide old bubble when nowbar is present
body.v5-shell #sabi-command-bubble {
  display: none !important;
}
*/

/* ─── Library sheet (mobile Plus) ──────────────────────────── */
.v5-library-sheet {
  padding: 8px 4px 24px;
}
.v5-library-sheet h2 {
  font-size: 28px;
  font-weight: 900;
  letter-spacing: -0.04em;
  margin: 4px 8px 16px;
}
.v5-library-search {
  margin: 0 8px 16px;
}
.v5-library-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  padding: 0 8px;
}
.v5-library-tile {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px;
  border-radius: var(--radius-lg);
  background: var(--bg-2);
  border: 1px solid var(--border);
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  transition: transform var(--motion-fast) var(--ease-out), border-color var(--motion-fast);
}
.v5-library-tile:active { transform: scale(0.97); }
.v5-library-tile__icon {
  width: 40px; height: 40px;
  border-radius: 12px;
  background: rgba(var(--brand-green-rgb), 0.12);
  color: var(--brand);
  display: flex; align-items: center; justify-content: center;
}
.v5-library-tile__label {
  font-size: 14px; font-weight: 800; color: var(--text);
}

/* ─── Page route transition ────────────────────────────────── */
#app > .page-shell,
#app > .page-shell-v5 {
  animation: v5PageIn var(--motion-base) var(--ease-out);
}
@keyframes v5PageIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}