/* ── AI Usage Monitor — Sidebar Layout ─────────────────────────────────────── */

:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --surface-muted: #f4f5f7;
  --text: #202124;
  --text-soft: #4b5563;
  --text-muted: #7a818c;
  --text-faint: #a4a9b2;
  --border: #e5e7eb;
  --border-strong: #d5d9df;
  --accent: #30343b;
  --accent-hover: #1f2329;
  --brand-accent: #0e9fb3;
  --navy: #202124;
  --cyan: #0e9fb3;
  --white: #ffffff;
  --gray-lt: #e5e7eb;
  --gray-md: #7a818c;
  --green-bg: #f4faf6;
  --green-txt: #047857;
  --red-bg: #fff7f6;
  --red-txt: #b91c1c;
  --yellow-bg: #fffbeb;
  --yellow-txt: #92400e;
  --font: "DM Sans", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(15,23,42,0.10);
  --radius-sm: 5px;
  --radius-md: 8px;
  --radius-lg: 14px;
}

html, body { height: 100%; overflow: hidden; }

body {
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
}

/* ── Header ── */
.header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: none;
  flex-shrink: 0;
}

.header-inner {
  max-width: 100%;
  height: 52px;
  margin: 0;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-org {
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}
.brand-org span { color: var(--brand-accent); }

.brand-divider {
  width: 1px;
  height: 18px;
  background: var(--border-strong);
}

.brand-title {
  font-size: 11px;
  font-weight: 650;
  color: var(--text-soft);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-feedback {
  color: var(--text-soft);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 5px 11px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  white-space: nowrap;
}
.btn-feedback:hover {
  background: var(--surface-muted);
  border-color: var(--border-strong);
  color: var(--text);
}

/* ── App layout: sidebar + content ── */
.app-layout {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* ── Sidebar ── */
.sidebar {
  width: 280px;
  flex-shrink: 0;
  background: var(--bg);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: #d6dae0; border-radius: 4px; }

.sidebar-section { display: flex; flex-direction: column; gap: 16px; }

.sidebar-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0 2px;
}

#sidebar-kpis {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sidebar-kpi {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 14px 12px;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}

.sidebar-kpi:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
  border-color: var(--border-strong);
}

.sidebar-kpi-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.sidebar-kpi-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.sidebar-kpi-value {
  font-size: 18px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.2;
  letter-spacing: -0.3px;
}

.sidebar-kpi-badge {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 10px;
  font-weight: 600;
  line-height: 1;
  padding: 2px 5px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}
.badge-up   { color: #1a7a42; background: #eefbf3; }
.badge-down { color: #b5423a; background: #fef4f3; }
.badge-flat { color: var(--text-muted); background: var(--surface-muted); }

.sidebar-freshness {
  margin-top: auto;
  padding: 10px 4px 0;
  font-size: 11px;
  color: var(--text-faint);
  border-top: 1px solid var(--border);
}

/* ── Main content ── */
.content {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
}

.content::-webkit-scrollbar { width: 6px; }
.content::-webkit-scrollbar-thumb { background: #d6dae0; border-radius: 6px; }

.content-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ── Content loader ── */
.content-loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 80px 20px;
  color: var(--text-muted);
  font-size: 13px;
}

.loader-spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--border);
  border-top-color: var(--brand-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Skeleton loaders ── */
.skeleton {
  background: linear-gradient(90deg, var(--border) 25%, var(--surface-muted) 50%, var(--border) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── Toggle buttons ── */
.toggle-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.toggle-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.toggle-btn {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 5px 12px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.toggle-btn:hover {
  color: var(--text);
  border-color: var(--border-strong);
}

.toggle-btn-active {
  color: var(--text);
  background: var(--surface-muted);
  border-color: var(--brand-accent);
  font-weight: 600;
}

/* ── Section labels ── */
.section-label {
  font-size: 11px;
  font-weight: 650;
  color: var(--text-soft);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

/* ── Cards ── */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}

/* ── Data tables ── */
.data-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.data-table th {
  text-align: left; font-size: 10px; font-weight: 600;
  color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em;
  padding: 8px 12px; border-bottom: 1px solid var(--border);
  background: var(--surface-muted); white-space: nowrap;
}
.data-table td {
  padding: 8px 12px; border-bottom: 1px solid #f1f5f9;
  color: var(--text); vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: #f8fafb; }

/* ── State indicators ── */
.state-error {
  color: var(--red-txt);
  font-size: 13px;
  padding: 12px 16px;
  background: var(--red-bg);
  border-radius: var(--radius-md);
  border: 1px solid #fca5a5;
}

/* ── Insight button ── */
.btn-insight:hover {
  background: var(--brand-accent) !important;
  color: #fff !important;
  border-color: var(--brand-accent) !important;
}
.insight-text {
  line-height: 1.4;
  max-width: 280px;
  display: inline-block;
}

/* ── Chart canvas ── */
#trend-chart { min-height: 260px; }

/* ── User profile dropdown ── */
.user-profile-wrap { position: relative; }
.user-profile-dropdown {
  display: none; position: absolute; right: 0; top: 100%;
  background: #fff; border: 1px solid var(--border); border-radius: 10px;
  padding: 14px 16px; min-width: 230px;
  box-shadow: var(--shadow-lg); z-index: 300;
}
.user-profile-wrap:hover .user-profile-dropdown { display: block; }

/* ── Feedback modal ── */
.fb-modal-overlay.open { display: flex; }
.fb-modal { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.fb-header { background: var(--accent); }
.fb-send { background: var(--accent); }
.fb-send:hover { background: var(--accent-hover); }

/* ── Modal ── */
.modal-overlay.open { display: flex; }
.modal-box { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.modal-title { color: var(--text); }

/* ── Responsive ── */
@media (max-width: 900px) {
  .app-layout { flex-direction: column; }
  .sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); flex-direction: row; flex-wrap: wrap; padding: 12px 16px; overflow-y: visible; }
  .sidebar-section { flex-direction: row; flex-wrap: wrap; gap: 8px; }
  .sidebar-kpi { min-width: 140px; flex: 1; }
  .sidebar-freshness { margin-top: 0; border-top: none; padding: 4px 8px; }
  html, body { overflow: auto; }
  .content { overflow: visible; }
}