/* ============================================================
   Bantuya Dashboard — Design System
   Premium SaaS + Modern Fintech aesthetic
   ============================================================ */

/* ---------- 26. DESIGN TOKENS ---------- */
:root {
  /* Color — light theme */
  --color-bg: #eef3f8;
  --color-bg-alt: #f4f7fb;
  --color-surface: #ffffff;
  --color-surface-2: #f7fafc;
  --color-surface-hover: #f0f5fa;
  --color-primary: #0f2a43;
  --color-accent: #16c6d8;
  --color-accent-soft: rgba(22, 198, 216, 0.12);
  --color-secondary: #4d7cfe;
  --color-secondary-soft: rgba(77, 124, 254, 0.12);
  --color-success: #22c55e;
  --color-success-soft: rgba(34, 197, 94, 0.12);
  --color-warning: #f59e0b;
  --color-warning-soft: rgba(245, 158, 11, 0.14);
  --color-danger: #ef4444;
  --color-danger-soft: rgba(239, 68, 68, 0.12);
  --color-text: #172033;
  --color-text-strong: #0f2a43;
  --color-muted: #7a8799;
  --color-border: #e6edf5;
  --color-border-strong: #d7e1ec;

  /* Radius */
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  /* Spacing scale */
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 20px;
  --space-xl: 24px;
  --space-2xl: 32px;
  --space-3xl: 40px;
  --space-4xl: 48px;

  /* Shadows — subtle depth */
  --shadow-sm: 0 1px 2px rgba(15, 42, 67, 0.04), 0 1px 3px rgba(15, 42, 67, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 42, 67, 0.06), 0 2px 6px rgba(15, 42, 67, 0.04);
  --shadow-lg: 0 12px 32px rgba(15, 42, 67, 0.10), 0 6px 12px rgba(15, 42, 67, 0.05);
  --shadow-focus: 0 0 0 3px rgba(77, 124, 254, 0.35);

  /* Typography */
  --font-sans: "Inter", "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  /* Layout */
  --sidebar-w: 264px;
  --sidebar-w-collapsed: 76px;
  --topbar-h: 68px;
  --content-max: 1560px;

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 150ms;
  --dur: 220ms;
  --dur-slow: 320ms;
}

/* ---------- 16. DARK MODE (dedicated theme) ---------- */
[data-theme="dark"] {
  --color-bg: #0b1220;
  --color-bg-alt: #0e1626;
  --color-surface: #111b2e;
  --color-surface-2: #16223a;
  --color-surface-hover: #18253f;
  --color-primary: #f8fafc;
  --color-accent: #22d3ee;
  --color-accent-soft: rgba(34, 211, 238, 0.14);
  --color-secondary: #6d93ff;
  --color-secondary-soft: rgba(109, 147, 255, 0.16);
  --color-success: #34d399;
  --color-success-soft: rgba(52, 211, 153, 0.14);
  --color-warning: #fbbf24;
  --color-warning-soft: rgba(251, 191, 36, 0.16);
  --color-danger: #f87171;
  --color-danger-soft: rgba(248, 113, 113, 0.16);
  --color-text: #e6edf7;
  --color-text-strong: #f8fafc;
  --color-muted: #94a3b8;
  --color-border: #1e2c46;
  --color-border-strong: #27395a;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.30);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.45);
}

/* ---------- Base reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

h1, h2, h3, h4 { color: var(--color-text-strong); margin: 0; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul { margin: 0; padding: 0; list-style: none; }

/* Focus visibility (6. Accessibility) */
:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: var(--radius-sm);
}

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--color-border-strong); border-radius: 999px; }
::-webkit-scrollbar-track { background: transparent; }

/* ============================================================
   3. LAYOUT SYSTEM — CSS Grid app shell
   ============================================================ */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: 100vh;
  min-height: 100vh;
}
.app.is-collapsed { grid-template-columns: var(--sidebar-w-collapsed) 1fr; }

/* ---------- Sidebar ---------- */
.sidebar {
  grid-row: 1;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  padding: var(--space-lg) var(--space-md);
  gap: var(--space-lg);
  overflow-y: auto;
  transition: transform var(--dur) var(--ease);
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-2xs) var(--space-xs);
}
.brand__logo {
  width: 38px; height: 38px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
  display: grid; place-items: center;
  color: #fff; font-weight: 800; font-size: 18px;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}
.brand__name { font-weight: 800; font-size: 18px; color: var(--color-text-strong); letter-spacing: -0.02em; }
.brand__sub { font-size: 11px; color: var(--color-muted); font-weight: 500; }
.is-collapsed .brand__text, .is-collapsed .nav__label,
.is-collapsed .sidebar__foot { display: none; }

.nav { display: flex; flex-direction: column; gap: 2px; }
.nav__group-title {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--color-muted); font-weight: 600;
  padding: var(--space-md) var(--space-sm) var(--space-xs);
}
.is-collapsed .nav__group-title { text-align: center; font-size: 9px; }
.nav__item {
  display: flex; align-items: center; gap: var(--space-sm);
  padding: 11px var(--space-sm);
  border-radius: var(--radius-md);
  color: var(--color-muted);
  font-weight: 600; font-size: 14px;
  border: none; background: transparent;
  width: 100%; text-align: left;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.nav__item svg { width: 20px; height: 20px; flex-shrink: 0; }
.nav__item:hover { background: var(--color-surface-hover); color: var(--color-text-strong); }
.nav__item.is-active {
  background: var(--color-accent-soft);
  color: var(--color-text-strong);
}
.nav__item.is-active svg { color: var(--color-accent); }
.is-collapsed .nav__item { justify-content: center; }
.sidebar__foot { margin-top: auto; padding-top: var(--space-md); }
.health-pill {
  display: flex; align-items: center; gap: var(--space-xs);
  padding: 10px var(--space-sm);
  border-radius: var(--radius-md);
  background: var(--color-surface-2);
  font-size: 13px; font-weight: 600;
}
.dot { width: 9px; height: 9px; border-radius: 999px; background: var(--color-muted); flex-shrink: 0; }
.dot--ok { background: var(--color-success); box-shadow: 0 0 0 4px var(--color-success-soft); }
.dot--warn { background: var(--color-warning); box-shadow: 0 0 0 4px var(--color-warning-soft); }
.dot--bad { background: var(--color-danger); box-shadow: 0 0 0 4px var(--color-danger-soft); }

/* ---------- Main column ---------- */
.main { grid-row: 1; display: flex; flex-direction: column; overflow: hidden; }

/* ---------- Topbar ---------- */
.topbar {
  height: var(--topbar-h);
  flex-shrink: 0;
  display: flex; align-items: center; gap: var(--space-md);
  padding: 0 var(--space-2xl);
  background: color-mix(in srgb, var(--color-bg) 82%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--color-border);
  position: sticky; top: 0; z-index: 20;
}
.icon-btn {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-muted);
  display: grid; place-items: center;
  transition: all var(--dur-fast) var(--ease);
}
.icon-btn:hover { color: var(--color-text-strong); border-color: var(--color-border-strong); transform: translateY(-1px); }
.icon-btn svg { width: 20px; height: 20px; }
.icon-btn--ghost { border-color: transparent; background: transparent; }

.search {
  flex: 1; max-width: 420px;
  display: flex; align-items: center; gap: var(--space-xs);
  padding: 0 var(--space-md);
  height: 42px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-muted);
}
.search:focus-within { border-color: var(--color-secondary); box-shadow: var(--shadow-focus); }
.search svg { width: 18px; height: 18px; flex-shrink: 0; }
.search input {
  border: none; background: transparent; outline: none;
  width: 100%; font-size: 14px; color: var(--color-text);
}
.topbar__spacer { flex: 1; }
.user-chip {
  display: flex; align-items: center; gap: var(--space-xs);
  padding: 5px 5px 5px var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  font-weight: 600; font-size: 13px;
}
.avatar {
  width: 30px; height: 30px; border-radius: 999px;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
  color: #fff; display: grid; place-items: center; font-size: 12px; font-weight: 700;
}
.menu-toggle { display: none; }

/* ---------- Scroll area ---------- */
.content {
  flex: 1; overflow-y: auto;
  padding: var(--space-2xl);
}
.content__inner { max-width: var(--content-max); margin: 0 auto; }

/* ---------- Page header ---------- */
.page-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: var(--space-md); margin-bottom: var(--space-xl); flex-wrap: wrap;
}
.page-head h1 { font-size: 26px; }
.page-head__sub { color: var(--color-muted); font-size: 14px; margin-top: var(--space-2xs); }
.seg {
  display: inline-flex; background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 4px; gap: 2px;
}
.seg button {
  border: none; background: transparent; color: var(--color-muted);
  font-weight: 600; font-size: 13px; padding: 7px 14px; border-radius: 10px;
  transition: all var(--dur-fast) var(--ease);
}
.seg button.is-active { background: var(--color-accent-soft); color: var(--color-text-strong); }

/* ============================================================
   12. CARD SYSTEM
   ============================================================ */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.card--pad-lg { padding: var(--space-2xl); }
.card__head {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-md); margin-bottom: var(--space-lg);
}
.card__title { font-size: 16px; font-weight: 700; }
.card__hint { font-size: 13px; color: var(--color-muted); }

/* ---------- 9. KPI CARDS ---------- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}
.kpi {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; gap: var(--space-sm);
  position: relative; overflow: hidden;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.kpi:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.kpi__top { display: flex; align-items: center; justify-content: space-between; }
.kpi__icon {
  width: 44px; height: 44px; border-radius: var(--radius-md);
  display: grid; place-items: center; flex-shrink: 0;
}
.kpi__icon svg { width: 22px; height: 22px; }
.kpi__icon--accent { background: var(--color-accent-soft); color: var(--color-accent); }
.kpi__icon--secondary { background: var(--color-secondary-soft); color: var(--color-secondary); }
.kpi__icon--success { background: var(--color-success-soft); color: var(--color-success); }
.kpi__icon--warning { background: var(--color-warning-soft); color: var(--color-warning); }
.kpi__label { font-size: 13px; color: var(--color-muted); font-weight: 600; }
.kpi__value { font-size: 30px; font-weight: 800; letter-spacing: -0.03em; color: var(--color-text-strong); line-height: 1.1; }
.kpi__foot { display: flex; align-items: center; gap: var(--space-xs); font-size: 13px; }
.trend { display: inline-flex; align-items: center; gap: 3px; font-weight: 700; padding: 2px 8px; border-radius: var(--radius-pill); font-size: 12px; }
.trend--up { color: var(--color-success); background: var(--color-success-soft); }
.trend--down { color: var(--color-danger); background: var(--color-danger-soft); }
.trend--neutral { color: var(--color-muted); background: var(--color-surface-2); }
.trend svg { width: 13px; height: 13px; }
.kpi__cmp { color: var(--color-muted); font-size: 12px; }
.kpi__spark { position: absolute; right: 0; bottom: 0; width: 120px; height: 44px; opacity: 0.85; pointer-events: none; }

/* ---------- Dashboard grid ---------- */
.grid-2 { display: grid; grid-template-columns: 1.7fr 1fr; gap: var(--space-lg); margin-bottom: var(--space-lg); }
.grid-2b { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-lg); margin-bottom: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); margin-bottom: var(--space-lg); }

/* ---------- 8. SMART INSIGHTS ---------- */
.insight {
  display: flex; gap: var(--space-sm); align-items: flex-start;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-sm);
}
.insight:last-child { margin-bottom: 0; }
.insight__mark { width: 8px; align-self: stretch; border-radius: 999px; flex-shrink: 0; }
.insight--high .insight__mark { background: var(--color-danger); }
.insight--medium .insight__mark { background: var(--color-warning); }
.insight--low .insight__mark { background: var(--color-accent); }
.insight__body { flex: 1; }
.insight__title { font-weight: 700; font-size: 14px; margin-bottom: 2px; }
.insight__text { font-size: 13px; color: var(--color-muted); }
.sev {
  font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em;
  padding: 3px 8px; border-radius: var(--radius-pill); flex-shrink: 0;
}
.sev--high { color: var(--color-danger); background: var(--color-danger-soft); }
.sev--medium { color: var(--color-warning); background: var(--color-warning-soft); }
.sev--low { color: var(--color-accent); background: var(--color-accent-soft); }

/* ---------- Bars / capability viz ---------- */
.bar-row { display: flex; align-items: center; gap: var(--space-md); margin-bottom: var(--space-md); }
.bar-row:last-child { margin-bottom: 0; }
.bar-row__label { width: 96px; font-size: 13px; font-weight: 600; color: var(--color-text); flex-shrink: 0; }
.bar-track { flex: 1; height: 10px; background: var(--color-surface-2); border-radius: 999px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--color-secondary), var(--color-accent)); transition: width var(--dur-slow) var(--ease); }
.bar-row__val { width: 40px; text-align: right; font-size: 13px; font-weight: 700; color: var(--color-text-strong); flex-shrink: 0; }

/* ---------- Table ---------- */
.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
.data thead th {
  text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--color-muted); font-weight: 600; padding: 10px var(--space-md);
  border-bottom: 1px solid var(--color-border); white-space: nowrap;
}
.data tbody td { padding: 14px var(--space-md); border-bottom: 1px solid var(--color-border); }
.data tbody tr:last-child td { border-bottom: none; }
.data tbody tr { transition: background var(--dur-fast) var(--ease); }
.data tbody tr:hover { background: var(--color-surface-hover); }
.mono { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }

/* ---------- Badges / chips ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: var(--radius-pill);
  font-size: 12px; font-weight: 700;
  background: var(--color-surface-2); color: var(--color-muted);
}
.badge--accent { background: var(--color-accent-soft); color: var(--color-accent); }
.badge--secondary { background: var(--color-secondary-soft); color: var(--color-secondary); }
.badge--success { background: var(--color-success-soft); color: var(--color-success); }
.badge--warning { background: var(--color-warning-soft); color: var(--color-warning); }
.badge--danger { background: var(--color-danger-soft); color: var(--color-danger); }

/* ---------- Agent / entity cards ---------- */
.entity-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: var(--space-lg); }
.entity {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.entity:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.entity__head { display: flex; align-items: center; gap: var(--space-sm); margin-bottom: var(--space-sm); }
.entity__ic { width: 40px; height: 40px; border-radius: var(--radius-md); background: var(--color-accent-soft); color: var(--color-accent); display: grid; place-items: center; flex-shrink: 0; }
.entity__ic svg { width: 20px; height: 20px; }
.entity__name { font-weight: 700; font-size: 15px; }
.entity__role { font-size: 12px; color: var(--color-muted); text-transform: capitalize; }
.entity__desc { font-size: 13px; color: var(--color-muted); margin: var(--space-sm) 0; min-height: 34px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }

/* ---------- Forms (routing playground) ---------- */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: var(--space-md); }
.field label { font-size: 13px; font-weight: 600; color: var(--color-text); }
.field textarea, .field select, .field input {
  font-family: inherit; font-size: 14px; color: var(--color-text);
  background: var(--color-surface-2); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 11px var(--space-md);
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
  width: 100%; resize: vertical;
}
.field textarea:focus, .field select:focus, .field input:focus {
  outline: none; border-color: var(--color-secondary); box-shadow: var(--shadow-focus);
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-xs);
  padding: 11px var(--space-lg); border-radius: var(--radius-md);
  font-weight: 700; font-size: 14px; border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.btn svg { width: 18px; height: 18px; }
.btn--primary { background: var(--color-primary); color: #fff; }
[data-theme="dark"] .btn--primary { background: var(--color-accent); color: #06232a; }
.btn--primary:hover { transform: translateY(-1px); opacity: 0.94; }
.btn--accent { background: linear-gradient(135deg, var(--color-secondary), var(--color-accent)); color: #fff; }
.btn--accent:hover { transform: translateY(-1px); }
.btn--ghost { background: var(--color-surface-2); color: var(--color-text); border-color: var(--color-border); }
.btn--ghost:hover { border-color: var(--color-border-strong); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn--block { width: 100%; }

/* ---------- Routing result ---------- */
.route-result { margin-top: var(--space-md); }
.route-pick {
  display: flex; align-items: center; gap: var(--space-md);
  padding: var(--space-md); border-radius: var(--radius-md);
  background: var(--color-accent-soft); border: 1px solid transparent; margin-bottom: var(--space-md);
}
.route-pick__model { font-size: 18px; font-weight: 800; color: var(--color-text-strong); }
.kv { display: grid; grid-template-columns: 140px 1fr; gap: 6px var(--space-md); font-size: 13px; }
.kv dt { color: var(--color-muted); font-weight: 600; }
.kv dd { margin: 0; font-weight: 600; }

/* ---------- Donut ---------- */
.donut-wrap { display: flex; align-items: center; gap: var(--space-xl); flex-wrap: wrap; }
.donut { position: relative; width: 160px; height: 160px; flex-shrink: 0; }
.donut__center { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; }
.donut__value { font-size: 26px; font-weight: 800; color: var(--color-text-strong); }
.donut__label { font-size: 12px; color: var(--color-muted); }
.legend { display: flex; flex-direction: column; gap: var(--space-sm); }
.legend__item { display: flex; align-items: center; gap: var(--space-xs); font-size: 13px; }
.legend__sw { width: 12px; height: 12px; border-radius: 4px; flex-shrink: 0; }

/* ============================================================
   18. UI STATES — skeleton / empty / error
   ============================================================ */
.skeleton {
  background: linear-gradient(90deg, var(--color-surface-2) 25%, var(--color-surface-hover) 37%, var(--color-surface-2) 63%);
  background-size: 400% 100%;
  animation: shimmer 1.4s ease infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: -100% 0; } }
.sk-line { height: 12px; margin-bottom: 10px; }
.sk-line.w-60 { width: 60%; } .sk-line.w-40 { width: 40%; } .sk-line.w-80 { width: 80%; }
.sk-block { height: 120px; }

.state {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: var(--space-3xl) var(--space-lg); gap: var(--space-sm);
}
.state__ic { width: 56px; height: 56px; border-radius: var(--radius-lg); display: grid; place-items: center; background: var(--color-surface-2); color: var(--color-muted); }
.state__ic svg { width: 28px; height: 28px; }
.state__title { font-weight: 700; font-size: 16px; }
.state__text { font-size: 14px; color: var(--color-muted); max-width: 380px; }
.state--error .state__ic { background: var(--color-danger-soft); color: var(--color-danger); }

/* ---------- Views ---------- */
.view { display: none; animation: fade var(--dur) var(--ease); }
.view.is-active { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------- Toast ---------- */
.toasts { position: fixed; bottom: var(--space-lg); right: var(--space-lg); z-index: 100; display: flex; flex-direction: column; gap: var(--space-xs); }
.toast {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md); padding: var(--space-sm) var(--space-md);
  box-shadow: var(--shadow-lg); font-size: 14px; font-weight: 600;
  min-width: 240px; max-width: 360px;
  animation: slidein var(--dur) var(--ease);
}
.toast--success { border-left-color: var(--color-success); }
.toast--error { border-left-color: var(--color-danger); }
@keyframes slidein { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: none; } }
@keyframes spin { to { transform: rotate(360deg); } }
.spin { animation: spin .8s linear infinite; width: 16px; height: 16px; }

/* Sidebar scrim (mobile) */
.scrim { display: none; }

/* ============================================================
   4. RESPONSIVE DESIGN
   ============================================================ */
@media (max-width: 1200px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-2, .grid-2b { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; inset: 0 auto 0 0; width: var(--sidebar-w); z-index: 60;
    transform: translateX(-100%);
  }
  .app.nav-open .sidebar { transform: translateX(0); box-shadow: var(--shadow-lg); }
  .app.nav-open .scrim { display: block; position: fixed; inset: 0; background: rgba(9, 16, 28, 0.5); z-index: 50; }
  .menu-toggle { display: grid; }
  .content { padding: var(--space-lg); }
  .topbar { padding: 0 var(--space-lg); }
}

@media (max-width: 640px) {
  .kpi-grid { grid-template-columns: 1fr 1fr; gap: var(--space-sm); }
  .grid-3 { grid-template-columns: 1fr; }
  .kpi { padding: var(--space-md); }
  .kpi__value { font-size: 24px; }
  .search { max-width: none; }
  .user-chip__name { display: none; }
  .page-head h1 { font-size: 22px; }
  .card { padding: var(--space-lg); }
}

@media (max-width: 400px) {
  .kpi-grid { grid-template-columns: 1fr; }
}

/* ---------- 17. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}