/* ===================================================================
   GrooVVee — Layout
   App shell grid: sidebar + topbar + main content
   =================================================================== */

/* ── Shell Container ────────────────────────────────────────────── */
.shell {
  display: grid;
  grid-template-areas:
    "sidebar topbar"
    "sidebar main";
  grid-template-columns: var(--sidebar-width) 1fr;
  grid-template-rows: var(--topbar-height) 1fr;
  min-height: 100dvh;
}

/* ── Sidebar ────────────────────────────────────────────────────── */
.sidebar {
  grid-area: sidebar;
  height: 100dvh;
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(24px);
  border-right: 1px solid var(--border-subtle);
  overflow-y: auto;
  overflow-x: hidden;
  z-index: var(--z-sidebar);
  transition: transform var(--duration-slow) var(--ease-out);
}

.sidebar__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-5);
  flex-shrink: 0;
  border-bottom: 1px solid var(--border-subtle);
}

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

.sidebar__logo .logo-icon,
.logo-icon-img {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.sidebar__close {
  display: none; /* Hidden on desktop */
}

/* Sidebar nav */
.sidebar__nav {
  flex: 1;
  padding: var(--space-4) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  overflow-y: auto;
}

.nav-section-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: var(--space-3) var(--space-3) var(--space-1);
  margin-top: var(--space-2);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.625rem var(--space-3);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  position: relative;
  text-decoration: none;
}

.nav-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.nav-item span:not(.nav-item__badge) {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-item:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
}

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

.nav-item.active {
  background: rgba(28, 28, 30, 0.12);
  color: var(--primary-600);
  border: 1px solid rgba(28, 28, 30, 0.25);
}

.nav-item.active svg {
  opacity: 1;
  color: var(--primary-400);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 20%;
  bottom: 20%;
  width: 3px;
  background: var(--gradient-mixed);
  border-radius: 0 var(--radius-full) var(--radius-full) 0;
}

.nav-item__badge {
  margin-left: auto;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: var(--radius-full);
}

.nav-item--disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* Sidebar footer */
.sidebar__footer {
  padding: var(--space-4) var(--space-3);
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

/* The account-menu trigger now lives here (bottom-left) instead of the
   topbar — same hover affordance as any other clickable sidebar row. */
.sidebar-user:hover {
  background: var(--glass-bg-hover);
}

/* Sidebar overlay (mobile) */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg-scrim);
  z-index: calc(var(--z-sidebar) - 1);
  opacity: 0;
  transition: opacity var(--duration-base) ease;
  backdrop-filter: blur(4px);
}

.sidebar-overlay.active { display: block; opacity: 1; }

/* ── Topbar ─────────────────────────────────────────────────────── */
.topbar {
  grid-area: topbar;
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 0 var(--space-6);
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  height: var(--topbar-height);
}

.topbar__left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.topbar__brand {
  display: none; /* Hidden on desktop — logo is in sidebar */
  align-items: center;
  gap: var(--space-2);
}

.topbar__brand .logo-icon-img {
  width: 24px;
  height: 24px;
}

.topbar__center {
  flex: 1;
  display: flex;
  justify-content: center;
  max-width: 480px;
  margin: 0 auto;
}

.topbar__right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* Hidden by default (desktop keeps the sidebar) — shown only under the mobile breakpoint below */
.bottom-nav { display: none; }

/* ── Main Content ───────────────────────────────────────────────── */
.main-content {
  grid-area: main;
  overflow-y: auto;
  overflow-x: hidden;
  min-height: calc(100dvh - var(--topbar-height));
  background: transparent;
}

/* ── Auth Container ─────────────────────────────────────────────── */
.auth-container {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  padding: var(--space-6);
  /* Was the branded illustration (assets/bg.jpg) under a translucent
     white wash — plain neutral base for now, no color. */
  background: var(--bg-base);
  /* Plain block + overflow-y:auto (not flex align-items:center) — centering
     an over-tall child with flex align-items:center clips its start and
     makes it unreachable by scrolling up. The inner .auth-page handles its
     own centering and grows naturally in normal flow when it's taller than
     the viewport, so it stays fully scrollable from the very top. */
  overflow-y: auto;
}

@media (max-width: 480px) {
  .auth-container {
    padding: var(--space-4);
  }
}

/* ── Responsive (Mobile < 768px) ────────────────────────────────── */
@media (max-width: 767px) {
  .shell {
    grid-template-areas:
      "topbar"
      "main";
    grid-template-columns: 1fr;
    /* auto, not a fixed --topbar-height — the topbar now wraps to two rows
       here (icons, then the search bar on its own row below). */
    grid-template-rows: auto 1fr;
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--sidebar-width);
    transform: translateX(-100%);
    z-index: var(--z-sidebar);
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-xl);
  }

  .sidebar__close { display: flex; }

  .topbar__brand { display: flex; }

  /* Ask AI and Networking have no sidebar or bottom-nav entry of their
     own — the topbar icon is their ONLY way in on mobile too, so none of
     these 8 icons can just be hidden on a phone the way the comment below
     does for routes that genuinely do have another entry point. Instead,
     let the icon row itself wrap onto a second line on a phone narrow
     enough that they don't all fit on one — every icon stays reachable;
     it just isn't forced into a single row that pushes right-edge icons
     (and previously the feed's own right-side action rail, and the
     bottom nav) past the visible edge of a narrower screen. */
  .topbar__right {
    flex-wrap: wrap;
    justify-content: flex-end;
    row-gap: var(--space-2);
    max-width: 100%;
  }

  /* Was hidden entirely on mobile — wraps to its own full-width row below
     the icon row instead, so Home (and every page) still has a visible
     search bar on phone. */
  .topbar {
    flex-wrap: wrap;
    height: auto;
    padding-block: var(--space-2);
    row-gap: var(--space-2);
  }

  .topbar__center {
    display: flex;
    order: 3;
    flex: 1 1 100%;
    max-width: 100%;
    margin: 0;
  }

  /* These routes are already one tap away via the bottom nav (Discover) or
     the sidebar (opened by the bottom nav's Menu button) — keeping them in
     the topbar too would overflow a phone-width topbar. Inbox stays: it has
     no bottom-nav slot of its own. */
  .btn-icon.topbar__quick-icon--desktop-only {
    display: none;
  }

  .topbar {
    padding: 0 var(--space-4);
  }

  .section {
    padding: var(--space-6) var(--space-4);
  }

  /* Bottom-nav is now just Home/Shorts/Subscriptions/You — the hamburger
     (top-left, next to the brand) is the only way to reach the sidebar
     on mobile, so it stays visible here instead of being hidden. */

  :root { --bottom-nav-height: 56px; }

  /* min-height: auto, not calc(100dvh - var(--topbar-height)) — the topbar
     no longer has a fixed height on mobile now that it wraps to two rows. */
  .main-content { padding-bottom: var(--bottom-nav-height); min-height: auto; }

  .bottom-nav {
    display: flex;
    align-items: center;
    justify-content: space-around;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    height: var(--bottom-nav-height);
    background: var(--bg-surface);
    border-top: 1px solid var(--border-subtle);
    box-shadow: 0 -2px 12px rgba(0,0,0,0.06);
    z-index: var(--z-sidebar);
    padding-bottom: env(safe-area-inset-bottom, 0);
  }

  .bottom-nav__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.625rem;
    font-weight: 600;
    cursor: pointer;
    flex: 1;
    height: 100%;
  }

  .bottom-nav__item svg { width: 22px; height: 22px; }

  .bottom-nav__item.active,
  .bottom-nav .nav-item.active { color: var(--primary-600); }

  .bottom-nav__create {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 32px;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
  }

  .bottom-nav__create svg { width: 20px; height: 20px; }
}

/* ── Responsive (Tablet 768–1023px) ─────────────────────────────── */
@media (min-width: 768px) and (max-width: 1023px) {
  .shell {
    grid-template-columns: var(--sidebar-collapsed-w) 1fr;
  }

  .sidebar__logo .logo-text,
  .nav-item span:not(.nav-item__badge),
  .nav-section-label,
  .sidebar__footer .user-name,
  .sidebar__footer .user-email {
    display: none;
  }

  .sidebar__logo { justify-content: center; }
  .sidebar__header { padding: var(--space-4); justify-content: center; }

  .nav-item {
    justify-content: center;
    padding: 0.625rem;
  }
  .nav-item svg { opacity: 1; }

  .topbar__center { display: none; }
}

/* ── Responsive (Large ≥ 1024px) ───────────────────────────────── */
@media (min-width: 1024px) {
  #sidebar-toggle { display: none; }
}

/* ── Print ──────────────────────────────────────────────────────── */
@media print {
  .sidebar, .topbar, .ambient-bg, .toast-container { display: none; }
  .shell { display: block; }
  .main-content { min-height: auto; overflow: visible; }
}