/* ──────────────────────────────────────────────────────────────
   fermag cdn — design system

   Flat neutral console: a grey canvas, one white frame inset into it,
   hairline-ringed cards inside that. Colour is kept for data only —
   charts, meters, status — while chrome stays monochrome with a
   near-black primary.
   ────────────────────────────────────────────────────────────── */

:root {
  --radius: 10px;

  --canvas: #f4f4f5;
  --background: #ffffff;
  --foreground: #18181b;
  --card: #ffffff;
  --primary: #27272a;
  --primary-foreground: #fafafa;
  --secondary: #f4f4f5;
  --muted: #f4f4f5;
  --muted-foreground: #71717a;
  --accent: #f4f4f5;
  --destructive: #dc2626;
  --success: #16a34a;
  --warning: #d97706;
  --info: #2563eb;
  --border: #e4e4e7;
  --input: #e4e4e7;
  --ring: #a1a1aa;
  --faint: #71717a;

  --chart-1: #bfdbfe;
  --chart-2: #60a5fa;
  --chart-3: #3b82f6;
  --chart-4: #2563eb;
  --chart-5: #1d4ed8;

  --font-sans: "DM Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

.dark {
  --canvas: #09090b;
  --background: #18181b;
  --foreground: #fafafa;
  --card: #27272a;
  --primary: #fafafa;
  --primary-foreground: #18181b;
  --secondary: #27272a;
  --muted: #27272a;
  --muted-foreground: #a1a1aa;
  --accent: #27272a;
  --destructive: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --info: #3b82f6;
  --border: #3f3f46;
  --input: #3f3f46;
  --ring: #71717a;
  --faint: #a1a1aa;

  --chart-1: #1e3a8a;
  --chart-2: #1d4ed8;
  --chart-3: #2563eb;
  --chart-4: #3b82f6;
  --chart-5: #60a5fa;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--foreground);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

[hidden] { display: none !important; }

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }

/* ── frame ─────────────────────────────────────────────────── */

.shell {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  min-height: 100vh;
}

.frame {
  display: flex;
  flex-direction: column;
  min-width: 0;
  margin: 12px 12px 12px 0;
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

/* ── icon rail ─────────────────────────────────────────────── */

.rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px 0;
}

.rail-btn {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--muted-foreground);
  cursor: pointer;
  transition: background .15s, color .15s;
}
.rail-btn:hover { background: var(--secondary); color: var(--foreground); }
.rail-btn.on { background: var(--primary); color: var(--primary-foreground); }
.rail-btn svg { width: 18px; height: 18px; }

.rail-sep { width: 24px; height: 1px; background: var(--border); margin: 8px 0; }

.rail-foot { margin-top: auto; display: flex; flex-direction: column; align-items: center; gap: 8px; }

.avatar {
  width: 30px; height: 30px;
  border-radius: 999px;
  background: var(--primary);
  color: var(--primary-foreground);
  display: grid; place-items: center;
  font-size: 12px; font-weight: 600;
  cursor: pointer;
}

/* ── top bar ───────────────────────────────────────────────── */

.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  min-height: 56px;
}

.brand {
  display: flex; align-items: center; gap: 9px;
  font-weight: 600; font-size: 15px; letter-spacing: -.01em;
  white-space: nowrap;
}
.brand-mark {
  width: 26px; height: 26px;
  border-radius: 8px;
  background: var(--primary);
  color: var(--primary-foreground);
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-size: 12px; font-weight: 700;
}
.brand .dim { color: var(--muted-foreground); font-weight: 500; }

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0 auto;
  padding: 3px;
  background: var(--secondary);
  border-radius: 999px;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav::-webkit-scrollbar { display: none; }

.nav-item {
  padding: 6px 13px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted-foreground);
  white-space: nowrap;
  cursor: pointer;
  border: 0;
  background: transparent;
  transition: background .15s, color .15s;
}
.nav-item:hover { color: var(--foreground); }
.nav-item.on { background: var(--background); color: var(--foreground); box-shadow: 0 1px 2px rgba(0,0,0,.06); }
.dark .nav-item.on { background: var(--card); }

.nav-sep { width: 1px; height: 16px; background: var(--border); margin: 0 4px; flex: none; }

.topbar-right { display: flex; align-items: center; gap: 6px; }

.icon-btn {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--background);
  color: var(--muted-foreground);
  cursor: pointer;
  transition: background .15s, color .15s;
}
.icon-btn:hover { background: var(--secondary); color: var(--foreground); }
.icon-btn svg { width: 16px; height: 16px; }

/* ── page ──────────────────────────────────────────────────── */

.page {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 22px 22px 40px;
}

.page-head { margin-bottom: 18px; }
.page-head h1 { margin: 0; font-size: 20px; font-weight: 600; letter-spacing: -.02em; }
.page-head p { margin: 3px 0 0; font-size: 13px; color: var(--muted-foreground); }

.grid { display: grid; gap: 14px; }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.split { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: 14px; }

@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 860px) {
  .shell { grid-template-columns: 0 minmax(0, 1fr); }
  .rail { display: none; }
  .frame { margin: 0; border: 0; border-radius: 0; }
  .nav { display: none; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: minmax(0, 1fr); }
  .page { padding: 16px 14px 32px; }
}

/* ── card ──────────────────────────────────────────────────── */

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  min-width: 0;
}

.card-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px; margin-bottom: 12px;
}
.card-title { font-size: 13px; font-weight: 600; letter-spacing: -.01em; }
.card-sub { font-size: 12px; color: var(--muted-foreground); }

.kpi-label { font-size: 12.5px; color: var(--muted-foreground); display: flex; justify-content: space-between; align-items: center; }
.kpi-value { font-size: 26px; font-weight: 600; letter-spacing: -.03em; margin: 8px 0 2px; font-variant-numeric: tabular-nums; }
.kpi-meta { font-size: 12px; color: var(--muted-foreground); display: flex; justify-content: space-between; }
.kpi-meta b { font-weight: 500; color: var(--foreground); font-variant-numeric: tabular-nums; }

.meter { height: 6px; border-radius: 999px; background: var(--muted); overflow: hidden; margin-top: 10px; }
.meter > span { display: block; height: 100%; border-radius: 999px; background: var(--primary); transition: width .4s ease; }
.meter.blue > span { background: var(--chart-3); }

/* ── buttons ───────────────────────────────────────────────── */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  height: 36px; padding: 0 14px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--background);
  font-size: 13px; font-weight: 500;
  cursor: pointer;
  transition: background .15s, border-color .15s, opacity .15s;
  white-space: nowrap;
}
.btn:hover { background: var(--secondary); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn svg { width: 15px; height: 15px; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: var(--primary-foreground); }
.btn-primary:hover { opacity: .9; background: var(--primary); }
.btn-sm { height: 30px; padding: 0 10px; font-size: 12.5px; border-radius: 8px; }
.btn-ghost { border-color: transparent; background: transparent; }
.btn-ghost:hover { background: var(--secondary); }
.btn-danger { color: var(--destructive); border-color: var(--border); }
.btn-danger:hover { background: color-mix(in srgb, var(--destructive) 8%, transparent); }

/* ── fields ────────────────────────────────────────────────── */

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.field > label { font-size: 12.5px; font-weight: 500; }
.field input, .field select, .field textarea {
  width: 100%;
  height: 38px;
  padding: 0 12px;
  border: 1px solid var(--input);
  border-radius: 9px;
  background: var(--background);
  color: var(--foreground);
  font: inherit;
  font-size: 13.5px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.field textarea { height: auto; min-height: 76px; padding: 10px 12px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: var(--muted-foreground); }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--ring);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ring) 22%, transparent);
}

/* ── table / list ──────────────────────────────────────────── */

.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th {
  text-align: left; font-weight: 500; font-size: 12px; color: var(--muted-foreground);
  padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap;
}
.table td { padding: 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: var(--secondary); }
.table .mono { font-family: var(--font-mono); font-size: 12px; }

.rows { display: flex; flex-direction: column; }
.row {
  display: flex; align-items: center; gap: 11px;
  padding: 10px 4px;
  border-bottom: 1px solid var(--border);
  min-width: 0;
}
.row:last-child { border-bottom: 0; }
.row-main { min-width: 0; flex: 1; }
.row-name { font-size: 13px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row-sub { font-size: 11.5px; color: var(--muted-foreground); font-family: var(--font-mono); }

.thumb {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--secondary);
  border: 1px solid var(--border);
  object-fit: cover; flex: none;
  display: grid; place-items: center;
  color: var(--muted-foreground);
}
.thumb svg { width: 16px; height: 16px; }

.chip {
  display: inline-flex; align-items: center; gap: 5px;
  height: 22px; padding: 0 8px;
  border-radius: 999px;
  background: var(--secondary);
  border: 1px solid var(--border);
  font-size: 11.5px; font-weight: 500;
  color: var(--muted-foreground);
  white-space: nowrap;
}
.chip.ok { color: var(--success); border-color: color-mix(in srgb, var(--success) 30%, var(--border)); background: color-mix(in srgb, var(--success) 8%, transparent); }
.chip.bad { color: var(--destructive); border-color: color-mix(in srgb, var(--destructive) 30%, var(--border)); background: color-mix(in srgb, var(--destructive) 8%, transparent); }
.chip.warn { color: var(--warning); border-color: color-mix(in srgb, var(--warning) 30%, var(--border)); background: color-mix(in srgb, var(--warning) 8%, transparent); }

.empty {
  padding: 28px 12px; text-align: center;
  color: var(--muted-foreground); font-size: 13px;
}
.empty svg { width: 22px; height: 22px; opacity: .5; margin-bottom: 8px; }

/* ── dropzone ──────────────────────────────────────────────── */

.drop {
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px 20px;
  text-align: center;
  background: var(--background);
  transition: border-color .15s, background .15s;
  cursor: pointer;
}
.drop:hover, .drop.over {
  border-color: var(--ring);
  background: var(--secondary);
}
.drop svg { width: 26px; height: 26px; color: var(--muted-foreground); margin-bottom: 10px; }
.drop h3 { margin: 0 0 4px; font-size: 14px; font-weight: 600; }
.drop p { margin: 0; font-size: 12.5px; color: var(--muted-foreground); }

.uploads { display: flex; flex-direction: column; gap: 8px; margin-top: 14px; }
.up { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 9px; }
.up-bar { flex: 1; height: 5px; background: var(--muted); border-radius: 999px; overflow: hidden; }
.up-bar > span { display: block; height: 100%; background: var(--chart-3); width: 0; transition: width .25s; }
.up.done .up-bar > span { background: var(--success); }
.up.fail .up-bar > span { background: var(--destructive); }

/* ── chart ─────────────────────────────────────────────────── */

.chart { width: 100%; height: 190px; display: block; }
.legend { display: flex; gap: 14px; font-size: 12px; color: var(--muted-foreground); }
.legend i { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 5px; }

/* ── auth ──────────────────────────────────────────────────── */

.auth-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--canvas);
}
.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 26px;
}
.auth-brand { display: flex; justify-content: center; margin-bottom: 22px; }
.auth-kicker { font-size: 12px; color: var(--muted-foreground); margin-bottom: 4px; }
.auth-card h1 { margin: 0 0 6px; font-size: 22px; font-weight: 600; letter-spacing: -.025em; }
.auth-card .sub { margin: 0 0 20px; font-size: 13px; color: var(--muted-foreground); }
.auth-alt { margin-top: 16px; font-size: 12.5px; color: var(--muted-foreground); text-align: center; }
.auth-alt a { font-weight: 600; color: var(--foreground); cursor: pointer; }

.notice {
  padding: 10px 12px;
  border-radius: 9px;
  font-size: 12.5px;
  border: 1px solid var(--border);
  background: var(--secondary);
  margin-bottom: 14px;
}
.notice.bad { color: var(--destructive); border-color: color-mix(in srgb, var(--destructive) 30%, var(--border)); background: color-mix(in srgb, var(--destructive) 7%, transparent); }
.notice.ok { color: var(--success); border-color: color-mix(in srgb, var(--success) 30%, var(--border)); background: color-mix(in srgb, var(--success) 7%, transparent); }

/* ── misc ──────────────────────────────────────────────────── */

.mono { font-family: var(--font-mono); }
.muted { color: var(--muted-foreground); }
.copy { cursor: pointer; }
.copy:hover { color: var(--foreground); }

.hover-preview {
  position: fixed; z-index: 90; width: 236px; height: 154px;
  border-radius: 10px; overflow: hidden;
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: 0 12px 32px rgba(0,0,0,.16);
  opacity: 0; transform: scale(.96); pointer-events: none;
  transition: opacity .14s, transform .14s;
}
.hover-preview.on { opacity: 1; transform: scale(1); }
.hover-preview img { width: 100%; height: 100%; object-fit: cover; display: block; }

.spinner {
  width: 16px; height: 16px; border-radius: 999px;
  border: 2px solid var(--border); border-top-color: var(--primary);
  animation: spin .7s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 999px; border: 3px solid var(--canvas); }
::-webkit-scrollbar-track { background: transparent; }