/* OppShop — dark-first data product.
   No CDN, no webfont fetch: system font stacks only, so the site renders
   identically from file:// and from a static host. */

:root {
  color-scheme: dark;

  --bg:        #0b0e13;
  --bg-raise:  #11161e;
  --surface:   #151b25;
  --surface-2: #1b2331;
  --line:      #232c3a;
  --line-soft: #1a2130;

  --ink:       #e8eef6;
  --ink-mid:   #a5b3c6;
  --ink-dim:   #6f7f95;

  --accent:    #5cc8ff;   /* data blue  */
  --accent-dim:#1d4e6b;
  --warn:      #f5a623;   /* at-ceiling */
  --danger:    #ff6b6b;   /* over-budget */
  --ok:        #4ade80;
  --violet:    #a78bfa;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.4), 0 8px 24px -12px rgb(0 0 0 / 0.6);

  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "Segoe UI Mono", "Roboto Mono", Menlo, Consolas, monospace;

  --z-nav: 20;
  --z-sticky: 30;
  --z-modal: 50;
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --bg:        #f6f8fb;
    --bg-raise:  #ffffff;
    --surface:   #ffffff;
    --surface-2: #f1f4f9;
    --line:      #d8dfe9;
    --line-soft: #e5eaf1;
    --ink:       #0f1723;
    --ink-mid:   #47566b;      /* 4.5:1 on white */
    --ink-dim:   #5d6b80;
    --accent:    #0b6a99;
    --accent-dim:#cfe6f3;
    --warn:      #9a6100;
    --danger:    #b42318;
    --ok:        #17683a;
    --violet:    #6d43d6;
    --shadow: 0 1px 2px rgb(16 24 40 / 0.06), 0 8px 24px -12px rgb(16 24 40 / 0.18);
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
  font-synthesis-weight: none;
}

/* Reduced motion is a preference, not a suggestion. */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

a { color: var(--accent); text-decoration-color: color-mix(in srgb, var(--accent) 40%, transparent); }
a:hover { text-decoration-color: currentColor; }

:where(a, button, input, select, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.num  { font-family: var(--mono); font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }
.dim  { color: var(--ink-dim); }
.mid  { color: var(--ink-mid); }
.nowrap { white-space: nowrap; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 8px; top: -48px; z-index: var(--z-modal);
  background: var(--surface); color: var(--ink); padding: 10px 14px;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  transition: top 160ms ease;
}
.skip-link:focus { top: 8px; }

/* ── shell ───────────────────────────────────────────────────────────────── */
.shell { max-width: 1240px; margin: 0 auto; padding: 0 20px; }

.nav {
  position: sticky; top: 0; z-index: var(--z-nav);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1240px; margin: 0 auto; padding: 12px 20px;
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
}
.brand {
  display: inline-flex; align-items: center; gap: 9px;
  font-weight: 650; letter-spacing: -0.01em; color: var(--ink); text-decoration: none; font-size: 17px;
}
.brand svg { color: var(--accent); flex: none; }
.brand span b { color: var(--accent); font-weight: 650; }

.nav-links { display: flex; gap: 4px; margin-left: auto; flex-wrap: wrap; }
.nav-links a {
  padding: 7px 12px; border-radius: var(--radius-sm); color: var(--ink-mid);
  text-decoration: none; font-size: 14.5px; font-weight: 500;
  transition: background-color 180ms ease, color 180ms ease;
  min-height: 36px; display: inline-flex; align-items: center;
}
.nav-links a:hover { background: var(--surface-2); color: var(--ink); }
.nav-links a[aria-current="page"] { color: var(--ink); background: var(--surface-2); }

footer.site {
  border-top: 1px solid var(--line); margin-top: 72px; padding: 32px 0 56px;
  color: var(--ink-dim); font-size: 14px;
}
footer.site .shell { display: grid; gap: 14px; }
footer.site p { margin: 0; max-width: 78ch; }

/* ── typography ──────────────────────────────────────────────────────────── */
h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.2; margin: 0; font-weight: 650; }
h1 { font-size: clamp(28px, 4.4vw, 44px); }
h2 { font-size: clamp(20px, 2.4vw, 26px); }
h3 { font-size: 16px; letter-spacing: 0.02em; text-transform: uppercase; color: var(--ink-mid); font-weight: 600; }
p  { margin: 0 0 1em; max-width: 72ch; }
.lede { font-size: clamp(16.5px, 1.5vw, 19px); color: var(--ink-mid); max-width: 66ch; }

.eyebrow {
  font: 600 12px/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 14px;
}

section { padding: 44px 0; }
section > h2 { margin-bottom: 8px; }
section > h2 + p { color: var(--ink-mid); }

/* ── cards + grid ────────────────────────────────────────────────────────── */
.grid { display: grid; gap: 16px; grid-template-columns: repeat(12, 1fr); }
.span-3 { grid-column: span 3; }
.span-4 { grid-column: span 4; }
.span-6 { grid-column: span 6; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: span 12; }

.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow);
}
.card > h3 { margin-bottom: 14px; }

.stat .k { font: 600 12px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-dim); }
.stat .v { font: 650 30px/1.15 var(--sans); font-variant-numeric: tabular-nums; margin-top: 10px; letter-spacing: -0.02em; }
.stat .s { font-size: 13px; color: var(--ink-dim); margin-top: 6px; }

/* ── controls ────────────────────────────────────────────────────────────── */
.controls {
  display: flex; gap: 10px; flex-wrap: wrap; align-items: end;
  padding: 16px 0 20px; position: sticky; top: 61px; z-index: var(--z-sticky);
  background: var(--bg);
}
.field { display: grid; gap: 6px; }
.field label { font: 600 11.5px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-dim); }

input[type="search"], input[type="text"], select {
  background: var(--surface); color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 0 12px; height: 40px; font: 15px/1 var(--sans); min-width: 150px;
  transition: border-color 180ms ease;
}
input[type="search"] { min-width: 260px; }
input:hover, select:hover { border-color: var(--ink-dim); }
input::placeholder { color: var(--ink-dim); }
select { cursor: pointer; }

.btn {
  height: 40px; padding: 0 16px; cursor: pointer;
  background: var(--surface-2); color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  font: 500 14.5px/1 var(--sans); display: inline-flex; align-items: center; gap: 8px;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}
.btn:hover { background: var(--accent-dim); border-color: var(--accent); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #04121b; font-weight: 600; }
.btn-primary:hover { filter: brightness(1.08); background: var(--accent); color: #04121b; }
@media (prefers-color-scheme: light) { .btn-primary { color: #fff; } }

.chip {
  cursor: pointer; user-select: none;
  padding: 6px 12px; min-height: 32px; display: inline-flex; align-items: center;
  border-radius: 999px; border: 1px solid var(--line); background: var(--surface);
  color: var(--ink-mid); font-size: 13.5px;
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}
.chip:hover { color: var(--ink); border-color: var(--ink-dim); }
.chip[aria-pressed="true"] { background: var(--accent-dim); border-color: var(--accent); color: var(--ink); }
.chip-row { display: flex; gap: 8px; flex-wrap: wrap; }

/* ── tables ──────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
th, td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
thead th {
  position: sticky; top: 0; background: var(--surface-2); color: var(--ink-mid);
  font: 600 11.5px/1.4 var(--mono); letter-spacing: 0.08em; text-transform: uppercase;
  white-space: nowrap; z-index: 1;
}
tbody tr:last-child td { border-bottom: 0; }
tbody tr { transition: background-color 140ms ease; }
tbody tr:hover { background: var(--surface-2); }
td .t { display: block; max-width: 52ch; }

/* ── badges ──────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font: 600 11px/1 var(--mono); letter-spacing: 0.04em; text-transform: uppercase;
  padding: 4px 7px; border-radius: 5px; white-space: nowrap;
  border: 1px solid transparent;
}
.badge-cat   { background: var(--surface-2); color: var(--ink-mid); border-color: var(--line); }
.badge-over  { background: color-mix(in srgb, var(--danger) 16%, transparent); color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, transparent); }
.badge-maxed { background: color-mix(in srgb, var(--warn) 16%, transparent);   color: var(--warn);   border-color: color-mix(in srgb, var(--warn) 40%, transparent); }
.badge-cross { background: color-mix(in srgb, var(--violet) 16%, transparent); color: var(--violet); border-color: color-mix(in srgb, var(--violet) 40%, transparent); }
.badge-repeat{ background: color-mix(in srgb, var(--accent) 16%, transparent); color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.badge-ok    { background: color-mix(in srgb, var(--ok) 16%, transparent);     color: var(--ok);     border-color: color-mix(in srgb, var(--ok) 40%, transparent); }
.badge-off   { background: var(--surface-2); color: var(--ink-dim); border-color: var(--line); }

/* Status is never conveyed by colour alone — each badge carries a glyph + text. */
.badge::before { font-family: var(--mono); }
.badge-ok::before    { content: "\2713"; }   /* ✓ */
.badge-off::before   { content: "\00B7"; }   /* · */
.badge-over::before  { content: "\26A0"; }   /* ⚠ */
.badge-maxed::before { content: "\25B3"; }   /* △ */

/* ── bars ────────────────────────────────────────────────────────────────── */
.bars { display: grid; gap: 9px; }
.bar-row { display: grid; grid-template-columns: minmax(90px, 34%) 1fr auto; gap: 12px; align-items: center; font-size: 14px; }
.bar-track { background: var(--surface-2); border-radius: 999px; height: 8px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--accent); border-radius: 999px; }
.bar-fill.alt { background: var(--violet); }

/* ── entity detail ───────────────────────────────────────────────────────── */
.result {
  width: 100%; text-align: left; cursor: pointer;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; display: grid; gap: 6px; color: inherit; font: inherit;
  transition: border-color 180ms ease, background-color 180ms ease;
}
.result:hover { border-color: var(--accent); background: var(--surface-2); }
.result[aria-expanded="true"] { border-color: var(--accent); }
.result .r-top { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.result .r-name { font-weight: 600; font-size: 16px; }
.result .r-meta { color: var(--ink-dim); font-size: 13.5px; }
.results { display: grid; gap: 10px; }

.detail { border: 1px solid var(--line); border-top: 0; border-radius: 0 0 var(--radius) var(--radius); background: var(--bg-raise); padding: 16px; }

.empty { padding: 56px 20px; text-align: center; color: var(--ink-dim); border: 1px dashed var(--line); border-radius: var(--radius); }

.note {
  border-left: 3px solid var(--accent); background: var(--surface);
  padding: 14px 18px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 20px 0;
}
.note.warn { border-left-color: var(--warn); }
.note p:last-child { margin-bottom: 0; }

.count { color: var(--ink-dim); font: 500 13.5px/1 var(--mono); }

/* ── responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .span-3 { grid-column: span 6; }
  .span-4, .span-8 { grid-column: span 12; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .span-3, .span-6 { grid-column: span 12; }
  .controls { position: static; }
  .nav-links { margin-left: 0; width: 100%; overflow-x: auto; }
  input[type="search"] { min-width: 100%; }
  .field { flex: 1 1 100%; }
}