/* ==============================
   LAYOUT — Lonvital Creative Hub
   Sidebar, topbar, main grid, responsive
============================== */

/* BASE RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100dvh;
  line-height: 1.5;
}
img { display: block; max-width: 100%; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
input, select, textarea { font: inherit; color: inherit; background: none; }
a { color: inherit; text-decoration: none; }

/* SCROLLBAR */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-faint); }

/* APP LAYOUT GRID */
.app-layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: var(--topbar-h) 1fr;
  min-height: 100dvh;
}

/* SIDEBAR */
.sidebar {
  grid-row: 1 / -1;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  position: sticky;
  top: 0;
  height: 100dvh;
}
.sidebar-logo {
  padding: var(--space-5) var(--space-5) var(--space-4);
  border-bottom: 1px solid var(--color-divider);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.logo-mark {
  width: 32px; height: 32px;
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  color: white; flex-shrink: 0;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text strong {
  font-size: var(--text-sm); font-weight: 700;
  color: var(--color-text); letter-spacing: -0.01em;
}
.logo-text span { font-size: var(--text-xs); color: var(--color-text-muted); font-weight: 500; }

.sidebar-section { padding: var(--space-4) var(--space-3); flex: 1; }
.sidebar-label {
  font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-text-faint);
  padding: var(--space-2) var(--space-3) var(--space-1);
}
.nav-item {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm); font-weight: 500;
  color: var(--color-text-muted);
  transition: background var(--transition), color var(--transition);
  cursor: pointer; position: relative; margin-bottom: 2px;
}
.nav-item:hover { background: var(--color-surface-offset); color: var(--color-text); }
.nav-item.active { background: var(--color-primary-highlight); color: var(--color-primary); }
[data-theme="dark"] .nav-item.active { background: var(--color-primary-subtle); color: var(--color-primary); }
.nav-item svg { flex-shrink: 0; }
.nav-badge {
  margin-left: auto;
  background: var(--color-primary); color: white;
  font-size: 0.65rem; font-weight: 700;
  padding: 2px 6px; border-radius: var(--radius-full); line-height: 1.4;
}
.sidebar-bottom {
  padding: var(--space-3);
  border-top: 1px solid var(--color-divider);
}
.status-indicator {
  display: flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-primary-subtle);
  border-radius: var(--radius-md);
  font-size: var(--text-xs); color: var(--color-primary);
}
.status-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-accent-glow);
  animation: pulse-dot 2s ease-in-out infinite; flex-shrink: 0;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 2px var(--color-accent-glow); }
  50%       { box-shadow: 0 0 0 5px var(--color-accent-glow); }
}

/* TOPBAR */
.topbar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex; align-items: center; gap: var(--space-4);
  padding: 0 var(--space-6);
  position: sticky; top: 0; z-index: 10;
}
.topbar-breadcrumb {
  display: flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-sm); color: var(--color-text-muted);
}
.topbar-breadcrumb span:last-child { color: var(--color-text); font-weight: 600; }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: var(--space-2); }

/* HAMBURGER — mobile only */
.hamburger-btn {
  display: none;
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  align-items: center; justify-content: center;
  color: var(--color-text-muted);
  flex-shrink: 0;
}
.hamburger-btn:hover { background: var(--color-surface-offset); color: var(--color-text); }

/* MOBILE SIDEBAR OVERLAY */
.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 50;
  backdrop-filter: blur(2px);
}
.sidebar-overlay.open { display: block; }

/* MAIN CONTENT */
.main-content {
  overflow-y: auto; padding: var(--space-6);
  display: flex; flex-direction: column; gap: var(--space-6);
  min-width: 0;
}

/* VIEW PANELS */
.view-panel { display: none; flex-direction: column; gap: var(--space-6); }
.view-panel.active { display: flex; }

/* SECTION HEADER */
.section-header {
  display: flex; align-items: flex-start;
  justify-content: space-between; gap: var(--space-4); flex-wrap: wrap;
}
.section-title {
  font-size: var(--text-lg); font-weight: 700;
  color: var(--color-text); letter-spacing: -0.02em;
}
.section-subtitle { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: 2px; }
.section-actions { display: flex; gap: var(--space-2); align-items: center; flex-wrap: wrap; }

/* KPI GRID */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-4);
}

/* CHART ROW */
.chart-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

/* MEDIA GRID */
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-4);
}

/* CLIPS GRID */
.clips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-4);
}

/* CREATIVE LAYOUT */
.creative-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: var(--space-4);
  align-items: start;
}

/* FORM GRIDS */
.form-grid  { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.form-row   { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); margin-bottom: var(--space-4); }
.form-group { display: flex; flex-direction: column; gap: var(--space-2); }
.form-group.full-width { grid-column: 1 / -1; }

/* RESPONSIVE — tablet */
@media (max-width: 1024px) {
  :root { --sidebar-w: 60px; }
  .logo-text, .nav-item span, .sidebar-label,
  .status-indicator span { display: none; }
  .nav-item { justify-content: center; padding: var(--space-2); }
  .nav-badge { display: none; }
  .chart-row { grid-template-columns: 1fr; }
  .creative-layout { grid-template-columns: 1fr; }
  .form-grid, .form-row { grid-template-columns: 1fr; }
}

/* RESPONSIVE — mobile */
@media (max-width: 640px) {
  :root { --sidebar-w: 0px; }

  /* Sidebar becomes a drawer */
  .sidebar {
    position: fixed;
    left: 0; top: 0;
    width: 260px;
    height: 100dvh;
    transform: translateX(-100%);
    transition: transform 0.25s cubic-bezier(0.16,1,0.3,1);
    z-index: 60;
    /* restore text hidden at <=1024px */
  }
  .sidebar.mobile-open {
    transform: translateX(0);
  }
  /* restore labels inside the drawer */
  .sidebar.mobile-open .logo-text,
  .sidebar.mobile-open .nav-item span,
  .sidebar.mobile-open .sidebar-label,
  .sidebar.mobile-open .status-indicator span { display: flex; }
  .sidebar.mobile-open .nav-item span { display: inline; }
  .sidebar.mobile-open .nav-badge { display: inline-flex; }
  .sidebar.mobile-open .nav-item { justify-content: flex-start; padding: var(--space-2) var(--space-3); }

  .app-layout { grid-template-columns: 1fr; }
  .main-content { padding: var(--space-3); }
  .hamburger-btn { display: flex; }

  /* tables scroll horizontally instead of breaking layout */
  .table-card { overflow-x: auto; }
  .drill-layout { grid-template-columns: 1fr; }
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .section-actions { width: 100%; }
  .topbar { padding: 0 var(--space-3); gap: var(--space-2); }
  .topbar-breadcrumb { font-size: var(--text-xs); }
}