/* LogiHub — control-tower aesthetic */
:root {
  --bg: #F5F6F3;
  --surface: #FFFFFF;
  --surface-2: #FAFAF7;
  --surface-3: #EFF1EC;
  --border: #E4E6E0;
  --border-strong: #D2D5CE;
  --ink: #0F1419;
  --ink-2: #3B4450;
  --ink-3: #6B7480;
  --ink-4: #98A0AA;
  --accent: oklch(46% 0.09 205);
  --accent-2: oklch(56% 0.11 205);
  --accent-soft: oklch(94% 0.025 205);
  --accent-ink: oklch(38% 0.09 205);
  --ok: oklch(56% 0.12 155);
  --ok-soft: oklch(94% 0.04 155);
  --warn: oklch(68% 0.14 70);
  --warn-soft: oklch(95% 0.05 80);
  --danger: oklch(55% 0.18 28);
  --danger-soft: oklch(94% 0.04 28);
  --info: oklch(55% 0.11 245);
  --info-soft: oklch(95% 0.025 245);

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;

  --shadow-1: 0 1px 2px rgba(15, 20, 25, 0.04);
  --shadow-2: 0 4px 12px rgba(15, 20, 25, 0.06), 0 1px 2px rgba(15, 20, 25, 0.04);

  --font-sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: inherit; }

/* ── App shell ───────────────────────────────────────── */
.app {
  display: grid;
  grid-template-columns: 232px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--ink);
  color: #C7CBD1;
  padding: 22px 18px 18px;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 2px 6px 22px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 16px;
}
.brand-mark {
  width: 28px; height: 28px;
  border-radius: 7px;
  background: linear-gradient(135deg, oklch(64% 0.13 200), oklch(46% 0.09 205));
  position: relative;
  display: grid; place-items: center;
}
.brand-mark::before {
  content: ""; width: 12px; height: 12px;
  border: 2px solid #fff; border-radius: 50%;
  border-top-color: transparent; border-right-color: transparent;
}
.brand-name {
  color: #fff; font-weight: 600; font-size: 15px; letter-spacing: -0.01em;
}
.brand-sub {
  font-size: 10px; color: #8B96A3; letter-spacing: 0.08em; text-transform: uppercase;
  margin-top: 1px;
}

.nav-section {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #6B7480;
  padding: 14px 8px 6px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--r-md);
  color: #B8BEC6;
  font-size: 13px;
  cursor: pointer;
  transition: background 120ms, color 120ms;
  border: 1px solid transparent;
  user-select: none;
}
.nav-item:hover { color: #fff; background: rgba(255,255,255,0.04); }
.nav-item.active {
  color: #fff;
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.08);
}
.nav-item .nav-num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: #6B7480;
  width: 14px;
}
.nav-item.active .nav-num { color: oklch(72% 0.13 200); }
.nav-icon { width: 14px; height: 14px; flex-shrink: 0; }

.sidebar-foot {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 11px;
  color: #6B7480;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mode-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.05);
  padding: 6px 10px;
  border-radius: 999px;
  color: #B8BEC6;
  font-size: 11px;
  width: fit-content;
}
.mode-pill .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--warn); }

/* Data-mode switcher in sidebar footer */
.mode-block {
  display: flex; flex-direction: column; gap: 8px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px;
  padding: 10px 12px;
}
.mode-block-head {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 10.5px; color: #8B96A3;
  text-transform: uppercase; letter-spacing: 0.08em;
}
.mode-tag {
  text-transform: none; letter-spacing: 0;
  font-family: var(--font-mono); font-size: 10px;
  padding: 1px 6px; border-radius: 999px;
}
.mode-tag.accent  { background: rgba(120, 195, 215, 0.16); color: oklch(82% 0.09 200); }
.mode-tag.warn    { background: rgba(232, 168,  70, 0.16); color: oklch(82% 0.10  70); }
.mode-tag.neutral { background: rgba(255, 255, 255, 0.06); color: #B8BEC6; }
.mode-switch {
  display: grid; grid-template-columns: repeat(3, 1fr);
  background: rgba(0,0,0,0.25);
  border-radius: 7px;
  padding: 2px;
  gap: 2px;
}
.mode-opt {
  border: none; background: transparent;
  color: #8B96A3; font-size: 11px; font-weight: 500;
  padding: 5px 4px; border-radius: 5px;
  cursor: pointer; transition: background 120ms, color 120ms;
}
.mode-opt:hover { color: #fff; }
.mode-opt.active {
  background: rgba(255,255,255,0.10);
  color: #fff;
}
.mode-foot {
  font-size: 10.5px; color: #8B96A3; line-height: 1.45;
}

/* ── Main area ─────────────────────────────────────── */
.main { display: flex; flex-direction: column; min-width: 0; }
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(245, 246, 243, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 14px 28px;
}
.crumbs {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--ink-3);
}
.crumbs strong { color: var(--ink); font-weight: 500; }
.crumbs .sep { color: var(--ink-4); }

.topbar-right { display: flex; align-items: center; gap: 8px; }
.scenario-chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 6px 12px;
  font-size: 12px;
  color: var(--ink-2);
  cursor: pointer;
}
.scenario-chip:hover { border-color: var(--border-strong); }
.scenario-chip .lbl { color: var(--ink-3); font-size: 11px; }
.scenario-chip .val { color: var(--ink); font-weight: 500; font-family: var(--font-mono); }
.scenario-chip .caret { color: var(--ink-4); }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 12px;
  border-radius: var(--r-md);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--ink-2);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
}
.btn:hover { border-color: var(--border-strong); }
.btn.primary {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}
.btn.primary:hover { background: #000; }
.btn.ghost { background: transparent; border-color: transparent; color: var(--ink-3); }
.btn.ghost:hover { color: var(--ink); background: var(--surface-3); }

.page {
  padding: 24px 28px 64px;
  display: flex; flex-direction: column; gap: 20px;
  max-width: 1600px;
  width: 100%;
}

.page-head { display: flex; flex-direction: column; gap: 6px; }
.page-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-4);
  text-transform: uppercase;
}
.page-title {
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.018em;
  color: var(--ink);
  margin: 0;
}
.page-sub {
  color: var(--ink-3);
  font-size: 13.5px;
  max-width: 760px;
}

/* ── Card / surface ─────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}
.card-title {
  font-size: 13px; font-weight: 600; color: var(--ink); letter-spacing: -0.005em;
}
.card-sub {
  font-size: 11.5px; color: var(--ink-3);
}
.card-body { padding: 18px; }

/* ── KPI strip ──────────────────────────────────────── */
.kpi-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.kpi {
  background: var(--surface);
  padding: 16px 18px;
  display: flex; flex-direction: column; gap: 6px;
}
.kpi-label {
  font-size: 11px; color: var(--ink-3);
  text-transform: uppercase; letter-spacing: 0.06em;
  display: flex; align-items: center; gap: 6px;
}
.kpi-value {
  font-size: 24px;
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
  color: var(--ink);
  display: flex; align-items: baseline; gap: 6px;
}
.kpi-value .unit { font-size: 12px; color: var(--ink-3); font-weight: 500; }
.kpi-foot {
  font-size: 11.5px; color: var(--ink-3);
  display: flex; align-items: center; gap: 6px;
}
.kpi-delta {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 4px;
}
.kpi-delta.up { background: var(--ok-soft); color: var(--ok); }
.kpi-delta.down { background: var(--danger-soft); color: var(--danger); }
.kpi-delta.flat { background: var(--surface-3); color: var(--ink-3); }

/* ── Badges & status ────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  border: 1px solid transparent;
  white-space: nowrap;
}
.badge .dot { width: 5px; height: 5px; border-radius: 50%; }
.badge.healthy { background: var(--ok-soft); color: var(--ok); }
.badge.healthy .dot { background: var(--ok); }
.badge.warn { background: var(--warn-soft); color: oklch(48% 0.13 50); }
.badge.warn .dot { background: var(--warn); }
.badge.danger { background: var(--danger-soft); color: var(--danger); }
.badge.danger .dot { background: var(--danger); }
.badge.info { background: var(--info-soft); color: var(--info); }
.badge.info .dot { background: var(--info); }
.badge.neutral { background: var(--surface-3); color: var(--ink-2); }
.badge.neutral .dot { background: var(--ink-4); }
.badge.accent { background: var(--accent-soft); color: var(--accent-ink); }
.badge.accent .dot { background: var(--accent); }
.badge.outline { background: transparent; border-color: var(--border-strong); color: var(--ink-2); }

/* ── Tables ─────────────────────────────────────────── */
.tbl { width: 100%; border-collapse: collapse; }
.tbl th, .tbl td {
  padding: 11px 14px;
  text-align: left;
  font-size: 12.5px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.tbl th {
  font-weight: 500;
  color: var(--ink-3);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--surface-2);
  border-bottom-color: var(--border);
}
.tbl tr:last-child td { border-bottom: none; }
.tbl tr.recommended { background: linear-gradient(90deg, var(--accent-soft) 0%, transparent 70%); }
.tbl tr.hoverable:hover { background: var(--surface-2); cursor: pointer; }
.tbl td.num, .tbl th.num { text-align: right; font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.tbl .row-icon { width: 6px; height: 6px; border-radius: 50%; display: inline-block; margin-right: 8px; vertical-align: middle; }

/* ── Bars ───────────────────────────────────────────── */
.bar {
  height: 6px;
  border-radius: 3px;
  background: var(--surface-3);
  position: relative;
  overflow: hidden;
}
.bar > span {
  display: block;
  height: 100%;
  border-radius: 3px;
  background: var(--accent);
}
.bar.thin { height: 4px; }
.bar > span.ok { background: var(--ok); }
.bar > span.warn { background: var(--warn); }
.bar > span.danger { background: var(--danger); }
.bar.with-mark::after {
  content: ""; position: absolute; top: -2px; bottom: -2px; width: 2px;
  background: var(--ink-2);
}

/* ── Misc ───────────────────────────────────────────── */
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.hint { font-size: 11.5px; color: var(--ink-3); }
.divider { height: 1px; background: var(--border); margin: 14px 0; }

.section-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 20px;
}
@media (max-width: 1200px) {
  .section-grid { grid-template-columns: 1fr; }
}

.two-col { display: grid; grid-template-columns: 1.5fr 1fr; gap: 20px; }
.three-col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

/* ── Recommendation panel ──────────────────────────── */
.rec {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 18px 20px;
  display: flex; flex-direction: column; gap: 14px;
  position: relative;
}
.rec::before {
  content: "";
  position: absolute; left: 0; top: 16px; bottom: 16px; width: 3px;
  background: var(--accent); border-radius: 0 3px 3px 0;
}
.rec-eyebrow {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent-ink);
}
.rec-block {
  display: flex; flex-direction: column; gap: 3px;
}
.rec-block dt {
  font-size: 11px; color: var(--ink-4);
  text-transform: uppercase; letter-spacing: 0.06em;
}
.rec-block dd {
  margin: 0; font-size: 13px; color: var(--ink); line-height: 1.5;
}

/* ── Pipeline / progress ────────────────────────────── */
.pipeline {
  display: flex; gap: 0; align-items: stretch;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); overflow: hidden;
}
.pipeline-step {
  flex: 1; padding: 14px 16px;
  display: flex; flex-direction: column; gap: 4px;
  position: relative;
  border-right: 1px solid var(--border);
}
.pipeline-step:last-child { border-right: none; }
.pipeline-step .step-num {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--ink-4); letter-spacing: 0.08em;
}
.pipeline-step .step-name { font-size: 12.5px; font-weight: 500; color: var(--ink); }
.pipeline-step .step-meta { font-size: 11px; color: var(--ink-3); }
.pipeline-step.done .step-num { color: var(--ok); }
.pipeline-step.current { background: var(--accent-soft); }
.pipeline-step.current .step-num { color: var(--accent); }

/* ── Korea region grid ──────────────────────────────── */
.korea-grid {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 5;
  background: var(--surface-2);
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  padding: 12px;
}
.region-tile {
  position: absolute;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex; flex-direction: column;
  padding: 6px 8px;
  font-size: 10px;
  color: var(--ink-2);
  cursor: pointer;
  transition: transform 120ms, box-shadow 120ms;
  overflow: hidden;
}
.region-tile:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-2);
  z-index: 2;
}
.region-tile .r-name { font-weight: 500; font-size: 10.5px; }
.region-tile .r-val { font-family: var(--font-mono); font-size: 11px; margin-top: auto; font-weight: 600; }
.region-tile.selected { outline: 2px solid var(--accent); outline-offset: -1px; }

.hub-pin {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px var(--accent), 0 2px 4px rgba(0,0,0,0.2);
  transform: translate(-50%, -50%);
  cursor: pointer;
  z-index: 3;
}
.hub-pin.selected { background: var(--ink); box-shadow: 0 0 0 1px var(--ink), 0 2px 6px rgba(0,0,0,0.3); }
.hub-pin.overload { background: var(--danger); box-shadow: 0 0 0 1px var(--danger), 0 0 0 5px oklch(94% 0.04 28); }
.hub-pin.underused { background: var(--ink-4); box-shadow: 0 0 0 1px var(--ink-4); opacity: 0.6; }
.hub-pin .hub-label {
  position: absolute; left: 14px; top: -2px;
  white-space: nowrap; font-size: 10px;
  font-family: var(--font-mono);
  background: var(--surface); color: var(--ink-2);
  padding: 1px 5px; border-radius: 3px;
  border: 1px solid var(--border);
  pointer-events: none;
}

/* ── Chart helpers (SVG) ───────────────────────────── */
.svg-chart { width: 100%; height: 100%; display: block; }
.legend {
  display: flex; flex-wrap: wrap; gap: 14px;
  font-size: 11.5px; color: var(--ink-3);
}
.legend .swatch { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }

/* ── Scenario builder ──────────────────────────────── */
.scenario-card {
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 14px;
  display: flex; flex-direction: column; gap: 8px;
  cursor: pointer;
  background: var(--surface);
  transition: border-color 120ms, transform 120ms;
}
.scenario-card:hover { border-color: var(--border-strong); }
.scenario-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.scenario-card .sc-id {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--accent); font-weight: 600;
}
.scenario-card .sc-name { font-size: 13.5px; font-weight: 600; color: var(--ink); }
.scenario-card .sc-desc { font-size: 12px; color: var(--ink-3); line-height: 1.45; }
.scenario-card .sc-stats {
  display: flex; gap: 10px; font-size: 11px; color: var(--ink-3);
  margin-top: 4px;
  flex-wrap: wrap;
}
.scenario-card .sc-stats .stat { display: flex; flex-direction: column; }
.scenario-card .sc-stats .stat b { color: var(--ink); font-family: var(--font-mono); font-weight: 600; font-size: 12px; }

/* ── Controls ──────────────────────────────────────── */
.field {
  display: flex; flex-direction: column; gap: 6px;
}
.field-label {
  font-size: 11px; color: var(--ink-3);
  text-transform: uppercase; letter-spacing: 0.05em;
}
.seg {
  display: inline-flex; background: var(--surface-3); border-radius: var(--r-md); padding: 2px;
  border: 1px solid var(--border);
}
.seg button {
  border: none; background: transparent; padding: 5px 12px; border-radius: 7px;
  font-size: 12px; color: var(--ink-2); font-weight: 500;
}
.seg button.active { background: var(--surface); color: var(--ink); box-shadow: var(--shadow-1); }
.seg.compact button { padding: 3px 8px; font-size: 11px; }

.range-input {
  width: 100%; -webkit-appearance: none; appearance: none;
  height: 4px; background: var(--surface-3); border-radius: 2px;
}
.range-input::-webkit-slider-thumb {
  -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%;
  background: var(--ink); cursor: pointer;
}

.toggle {
  width: 32px; height: 18px;
  background: var(--surface-3); border-radius: 999px;
  position: relative; cursor: pointer;
  transition: background 120ms;
  border: 1px solid var(--border);
}
.toggle::after {
  content: ""; position: absolute; top: 1px; left: 1px;
  width: 14px; height: 14px; background: #fff; border-radius: 50%;
  transition: left 120ms;
  box-shadow: 0 1px 2px rgba(0,0,0,0.15);
}
.toggle.on { background: var(--accent); border-color: var(--accent); }
.toggle.on::after { left: 16px; }

/* ── Spark / mini ───────────────────────────────────── */
.spark { width: 100%; height: 36px; }

/* ── Empty / placeholder utility ───────────────────── */
.skeleton {
  background: repeating-linear-gradient(
    -45deg,
    var(--surface-3),
    var(--surface-3) 6px,
    var(--surface-2) 6px,
    var(--surface-2) 12px
  );
  border-radius: var(--r-md);
  color: var(--ink-3);
  display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 11px;
  border: 1px dashed var(--border-strong);
}

/* Scrollbars subtle */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(15,20,25,0.12); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(15,20,25,0.22); }