/* ═══ App shell: sidebar + topbar + view ═══════════════════════════════════ */
.shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  grid-template-rows: var(--topbar-h) 1fr;
  grid-template-areas: "side top" "side main";
  min-height: 100vh;
}

/* ── sidebar ─────────────────────────────────────────────────────────────── */
.sidebar {
  grid-area: side;
  position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column;
  background: var(--chrome-side);
  border-right: 1px solid var(--line);
  overflow-y: auto;
  z-index: 30;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  height: var(--topbar-h); padding: 0 20px;
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}
.brand img { width: 34px; height: 34px; filter: drop-shadow(0 0 10px var(--gold-a35)); }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-text strong { font: 800 15px var(--font-display); letter-spacing: 3px; color: var(--text); }
.brand-text span { font: 600 9px var(--font-display); letter-spacing: 3.2px; color: var(--gold); }

.nav { padding: 12px 10px 24px; display: flex; flex-direction: column; gap: 2px; }
.nav-group {
  margin: 18px 12px 6px;
  font: 600 10px var(--font-display); letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--muted);
}
.nav-group:first-child { margin-top: 4px; }
.nav a {
  position: relative;
  display: flex; align-items: center; gap: 12px;
  padding: 9px 12px; border-radius: var(--r-md);
  color: var(--text-2); font-weight: 500; font-size: var(--fs-sm);
  transition: background var(--t-fast), color var(--t-fast);
}
.nav a svg { width: 18px; height: 18px; opacity: 0.75; flex-shrink: 0; }
.nav a:hover { background: var(--surface-2); color: var(--text); }
.nav a.active {
  color: var(--text);
  background: var(--nav-active);
}
.nav a.active svg { opacity: 1; color: var(--orange); }
.nav a.active::before {
  content: ""; position: absolute; left: -10px; top: 8px; bottom: 8px; width: 3px;
  border-radius: 0 3px 3px 0; background: var(--grad-fire); box-shadow: var(--glow-fire);
}
.nav .badge-count { margin-left: auto; }

.sidebar-foot {
  margin-top: auto; padding: 14px 20px; border-top: 1px solid var(--line);
  font-size: var(--fs-xs); color: var(--muted);
}

/* ── topbar ──────────────────────────────────────────────────────────────── */
.topbar {
  grid-area: top;
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 16px;
  padding: 0 28px;
  background: var(--chrome-top);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.topbar .menu-btn { display: none; }
.topbar .refresh-btn.spinning svg { animation: spin 0.7s linear infinite; }
.page-title { display: flex; flex-direction: column; min-width: 0; flex-shrink: 1; }
.page-title small {
  font: 600 10px var(--font-display); letter-spacing: 2.5px; text-transform: uppercase; color: var(--gold);
}
.page-title h1 { font-size: var(--fs-lg); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.global-search { position: relative; margin-left: auto; width: min(360px, 34vw); }
.global-search input { padding-left: 36px; }
.global-search > svg { position: absolute; left: 11px; top: 50%; translate: 0 -50%; width: 16px; color: var(--muted); }
.search-results {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 50;
  background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--r-md);
  box-shadow: var(--shadow); padding: 6px; max-height: 420px; overflow-y: auto;
}
.search-results h4 {
  font: 600 10px var(--font-display); letter-spacing: 2px; color: var(--muted);
  text-transform: uppercase; padding: 8px 8px 4px;
}
.search-results a { display: flex; align-items: center; gap: 10px; padding: 7px 8px; border-radius: var(--r-sm); color: var(--text-2); }
.search-results a:hover, .search-results a.focused { background: var(--surface-hover); color: var(--text); }

.topbar-status { display: flex; gap: 8px; }
.user-menu { position: relative; }
.user-chip {
  display: flex; align-items: center; gap: 10px; padding: 5px 10px 5px 5px;
  border: 1px solid var(--line); border-radius: var(--r-full); background: var(--surface);
  cursor: pointer;
}
.user-chip:hover { border-color: var(--line-strong); }
.user-chip .who { display: flex; flex-direction: column; line-height: 1.1; text-align: left; }
.user-chip .who strong { color: var(--text); font-size: var(--fs-sm); }
.user-chip .who span { font-size: var(--fs-xs); color: var(--gold); }

/* ── main view ───────────────────────────────────────────────────────────── */
.main { grid-area: main; min-width: 0; padding: 26px 28px 60px; }
.view { animation: rise 220ms var(--ease); max-width: 1600px; margin: 0 auto; }
.view-head { display: flex; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin-bottom: var(--gap); }
.view-head .actions { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }

.grid { display: grid; gap: var(--gap); }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid.auto { grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr)); }
.grid > * { min-width: 0; }
.grid.sidebar-right { grid-template-columns: minmax(0, 1fr) 360px; }
.span-2 { grid-column: span 2; }

/* ── responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 1200px) {
  .grid.cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid.cols-3, .grid.sidebar-right { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 900px) {
  .shell { grid-template-columns: minmax(0, 1fr); grid-template-areas: "top" "main"; }
  .sidebar { position: fixed; left: 0; top: 0; width: var(--sidebar-w); transform: translateX(-100%);
             transition: transform var(--t) var(--ease); box-shadow: var(--shadow); }
  .shell.nav-open .sidebar { transform: none; }
  .shell.nav-open::after { content: ""; position: fixed; inset: 0; background: rgba(0, 0, 0, 0.55); z-index: 25; }
  .topbar { padding: 0 16px; }
  .topbar .menu-btn { display: inline-flex; }
  .topbar-status, .user-chip .who { display: none; }
  .global-search { width: auto; flex: 1; }
  .main { padding: 18px 16px 48px; }
  .grid.cols-2, .grid.cols-4 { grid-template-columns: minmax(0, 1fr); }
  .span-2 { grid-column: auto; }
}