:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-2: #eef1f5;
  --text: #17202a;
  --muted: #667085;
  --border: #d8dee7;
  --accent: #0f766e;
  --accent-2: #2563eb;
  --danger: #b42318;
  --shadow: 0 10px 30px rgba(20, 31, 45, .08);
}

[data-theme="dark"] {
  --bg: #111418;
  --surface: #181d23;
  --surface-2: #222933;
  --text: #ecf1f7;
  --muted: #a6b0bf;
  --border: #303947;
  --accent: #2dd4bf;
  --accent-2: #60a5fa;
  --danger: #fb7185;
  --shadow: 0 10px 30px rgba(0, 0, 0, .25);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

a { color: var(--accent-2); text-decoration: none; }
.app-shell { min-height: 100vh; display: flex; }
.sidebar {
  width: 260px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 18px;
  position: sticky;
  top: 0;
  height: 100vh;
  box-shadow: var(--shadow);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; margin-bottom: 22px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 8px; display: grid; place-items: center;
  background: var(--accent); color: white; font-size: 14px;
}
.sidebar nav { display: grid; gap: 6px; }
.sidebar a {
  color: var(--text); display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  border-radius: 8px; min-height: 42px;
}
.sidebar a.active, .sidebar a:hover { background: var(--surface-2); }
.main { flex: 1; min-width: 0; }
.topbar {
  position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 18px 24px; background: color-mix(in srgb, var(--surface) 92%, transparent);
  border-bottom: 1px solid var(--border); backdrop-filter: blur(10px);
}
.topbar h1 { margin: 0; font-size: 24px; line-height: 1.15; }
.topbar small { color: var(--muted); }
.top-actions { display: flex; align-items: center; gap: 8px; }
.workspace-switch { display: flex; align-items: center; gap: 8px; min-width: 240px; }
.workspace-switch .form-select { max-width: 180px; }
.flag img { width: 24px; height: 16px; display: block; border: 1px solid var(--border); }
.content { padding: 24px; }
.card, .modal-content {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}
.stat-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; }
.stat { padding: 18px; }
.stat strong { display: block; font-size: 28px; }
.muted { color: var(--muted); }
.table { --bs-table-bg: transparent; --bs-table-color: var(--text); border-color: var(--border); }
.table td, .table th { vertical-align: middle; }
.badge-sim { background: #cffafe; color: #155e75; }
[data-theme="dark"] .badge-sim { background: #164e63; color: #a5f3fc; }
.platform-pill { display: inline-flex; gap: 6px; align-items: center; padding: 4px 8px; border: 1px solid var(--border); border-radius: 999px; margin: 2px; font-size: 12px; }
.media-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.video-preview { width: 100%; max-height: 360px; background: #000; border-radius: 8px; }
.calendar-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 10px; }
.calendar-day { min-height: 138px; min-width: 0; padding: 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); }
.calendar-day.drag-over { outline: 2px solid var(--accent-2); outline-offset: -3px; }
.calendar-item {
  display: grid;
  width: 100%;
  min-width: 0;
  padding: 7px;
  margin-top: 8px;
  border: 0;
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--text);
  font-size: 12px;
  text-align: left;
  cursor: grab;
}
.calendar-item:active { cursor: grabbing; }
.calendar-item span {
  display: block;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.calendar-item-time { font-weight: 700; }
.calendar-item-platforms { color: var(--muted); }
.icon { width: 18px; height: 18px; display: inline-block; background: currentColor; mask-size: contain; mask-repeat: no-repeat; mask-position: center; }
.icon-grid { mask-image: url('../images/icon-grid.svg'); }
.icon-plus { mask-image: url('../images/icon-plus.svg'); }
.icon-calendar { mask-image: url('../images/icon-calendar.svg'); }
.icon-list { mask-image: url('../images/icon-list.svg'); }
.icon-video { mask-image: url('../images/icon-video.svg'); }
.icon-users { mask-image: url('../images/icon-users.svg'); }
.icon-chart { mask-image: url('../images/icon-chart.svg'); }
.icon-gear { mask-image: url('../images/icon-gear.svg'); }
.icon-file { mask-image: url('../images/icon-file.svg'); }
.icon-logout { mask-image: url('../images/icon-logout.svg'); }
.mobile-menu { display: none; }

@media (max-width: 900px) {
  .sidebar { position: fixed; left: -280px; transition: left .2s ease; z-index: 50; }
  .sidebar.open { left: 0; }
  .mobile-menu { display: inline-flex; }
  .topbar { align-items: flex-start; padding: 14px; }
  .content { padding: 14px; }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .calendar-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .stat-grid { grid-template-columns: 1fr; }
  .topbar { flex-wrap: wrap; }
  .top-actions { width: 100%; justify-content: flex-end; }
  .workspace-switch { width: 100%; min-width: 0; }
  .workspace-switch .form-select { max-width: none; }
  .calendar-grid { grid-template-columns: 1fr; }
}