/* AEC Hackathon grader.
   Liquid-glass treatment per Apple HIG: glass lives on the navigation
   layer and transient surfaces only; content stays near-opaque so it
   reads; glass never samples other glass (Safari also mishandles nested
   backdrop-filters); the ambient scene is painted on a fixed element so
   backdrop-filter can frost it. */

:root {
  --radius: 12px;
  --bg: oklch(0.97 0.003 240);
  --scrim: color-mix(in oklab, var(--bg) 45%, transparent);
  --card: oklch(1 0 0 / 0.9);
  --text: oklch(0.2 0.01 250);
  --text-dim: oklch(0.5 0.012 250);
  --border: oklch(0.35 0.01 250 / 0.16);
  --hairline: oklch(0.35 0.01 250 / 0.09);
  --input-bg: oklch(1 0 0 / 0.65);
  --track: oklch(0.5 0 0 / 0.08);
  --pill: oklch(1 0 0 / 0.98);
  --accent: oklch(0.5 0.13 250);
  --accent-text: oklch(0.45 0.13 250);
  --good: oklch(0.55 0.15 150);
  --good-bg: oklch(0.55 0.15 150 / 0.12);
  --warn: oklch(0.55 0.13 70);
  --warn-bg: oklch(0.7 0.15 80 / 0.16);
  --bad: oklch(0.55 0.19 25);
  --bad-bg: oklch(0.55 0.19 25 / 0.1);
  --shadow-card: inset 0 1px 0 0 oklch(1 0 0 / 0.5), 0 8px 28px oklch(0.2 0 0 / 0.07);
  --shadow-pill: inset 0 1px 0 0 oklch(1 0 0 / 0.8), 0 2px 8px oklch(0 0 0 / 0.16);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: oklch(0.17 0.008 250);
    --card: oklch(0.23 0.008 250 / 0.92);
    --text: oklch(0.94 0.005 250);
    --text-dim: oklch(0.66 0.01 250);
    --border: oklch(1 0 0 / 0.13);
    --hairline: oklch(1 0 0 / 0.08);
    --input-bg: oklch(0.14 0.008 250 / 0.55);
    --track: oklch(1 0 0 / 0.08);
    --pill: oklch(0.42 0.008 250 / 0.95);
    --accent: oklch(0.62 0.12 250);
    --accent-text: oklch(0.74 0.1 250);
    --good: oklch(0.72 0.14 150);
    --good-bg: oklch(0.7 0.14 150 / 0.14);
    --warn: oklch(0.78 0.13 80);
    --warn-bg: oklch(0.75 0.14 80 / 0.15);
    --bad: oklch(0.7 0.16 25);
    --bad-bg: oklch(0.65 0.17 25 / 0.14);
    --shadow-card: inset 0 1px 0 0 oklch(1 0 0 / 0.08), 0 8px 32px oklch(0 0 0 / 0.35);
    --shadow-pill: inset 0 1px 0 0 oklch(1 0 0 / 0.16), 0 1px 6px oklch(0 0 0 / 0.45);
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Ambient scene the glass refracts: cool blue up top, warm amber low —
   the sunset-skyline palette of the event poster, heavily muted. Fixed
   element (not background-attachment) so backdrop-filter samples it. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(55rem 38rem at 12% -8%, oklch(0.82 0.07 245 / 0.5), transparent 62%),
    radial-gradient(48rem 34rem at 98% 2%, oklch(0.86 0.05 225 / 0.4), transparent 62%),
    radial-gradient(44rem 38rem at 72% 108%, oklch(0.88 0.08 60 / 0.4), transparent 62%),
    radial-gradient(38rem 30rem at -8% 78%, oklch(0.87 0.06 45 / 0.28), transparent 62%);
}
@media (prefers-color-scheme: dark) {
  body::before {
    background-image:
      radial-gradient(55rem 38rem at 12% -8%, oklch(0.38 0.09 250 / 0.5), transparent 62%),
      radial-gradient(48rem 34rem at 98% 2%, oklch(0.35 0.07 230 / 0.38), transparent 62%),
      radial-gradient(44rem 38rem at 72% 108%, oklch(0.42 0.08 55 / 0.3), transparent 62%),
      radial-gradient(38rem 30rem at -8% 78%, oklch(0.38 0.06 45 / 0.22), transparent 62%);
  }
}

/* ---------------------------------------------------------------------
   Glass header — the ONE frosted layer. Capsules inside are solid
   tracks on the glass, not glass of their own.
--------------------------------------------------------------------- */

.glass-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background-color: var(--scrim);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 1px 0 0 var(--hairline);
}
@media (prefers-reduced-transparency: reduce) {
  .glass-header {
    background-color: var(--bg);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

.header-inner {
  max-width: 920px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.wordmark { white-space: nowrap; }
.wordmark strong {
  font-size: 15px;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--text);
}

/* Segmented capsule: solid track + sliding near-solid lozenge. */
.tabs {
  position: relative;
  display: flex;
  border-radius: 999px;
  background-color: var(--track);
  box-shadow: inset 0 0 0 1px var(--hairline);
  padding: 3px;
}
.tab {
  appearance: none;
  border: none;
  background: none;
  cursor: pointer;
  font: inherit;
  font-size: 13.5px;
  font-weight: 550;
  color: var(--text-dim);
  padding: 6px 16px;
  border-radius: 999px;
  position: relative;
  z-index: 1;
  transition: color 150ms ease;
}
.tab.active { color: var(--text); }
.tab-pill {
  position: absolute;
  top: 3px;
  bottom: 3px;
  border-radius: 999px;
  background-color: var(--pill);
  box-shadow: var(--shadow-pill);
  /* Slight overshoot ≈ Apple's .spring(response: 0.3) */
  transition:
    left 350ms cubic-bezier(0.3, 1.25, 0.5, 1),
    width 350ms cubic-bezier(0.3, 1.25, 0.5, 1);
}
@media (prefers-reduced-motion: reduce) {
  .tab-pill { transition: none; }
}

/* ---------------------------------------------------------------------
   Page frame
--------------------------------------------------------------------- */

main {
  max-width: 920px;
  margin: 0 auto;
  padding: 36px 20px 72px;
}

.page-intro { margin-bottom: 28px; }
.page-intro h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.page-intro p {
  color: var(--text-dim);
  font-size: 15px;
  max-width: 56ch;
  margin-top: 4px;
}

.panel { display: none; }
.panel.active { display: block; animation: rise 0.25s ease; }
@keyframes rise {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .panel.active { animation: none; }
}

/* Content cards: near-opaque. No blur — glass is for navigation. */
.card {
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow-card);
  padding: 22px 24px;
  margin-bottom: 18px;
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.card-head h2 { font-size: 16px; font-weight: 650; letter-spacing: -0.01em; }

h3 { font-size: 13px; font-weight: 650; margin-bottom: 2px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
@media (max-width: 660px) { .split { grid-template-columns: 1fr; } }

.stack { display: flex; flex-direction: column; gap: 9px; }

label { font-size: 12.5px; font-weight: 550; color: var(--text-dim); }

input[type="text"], input:not([type]) {
  background-color: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font: inherit;
  font-size: 14px;
  padding: 9px 12px;
  outline: none;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}
input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3.5px color-mix(in oklab, var(--accent) 22%, transparent);
}
input::placeholder { color: color-mix(in oklab, var(--text-dim) 75%, transparent); }

/* Capsule buttons. Press dips slightly — Apple's interactive-glass feel. */
.btn {
  appearance: none;
  cursor: pointer;
  border: 1px solid var(--border);
  border-radius: 999px;
  background-color: var(--track);
  color: var(--text);
  font: inherit;
  font-size: 14px;
  font-weight: 550;
  padding: 8px 18px;
}
.btn-primary {
  background-color: var(--accent);
  border-color: transparent;
  color: oklch(0.99 0 0);
  box-shadow: inset 0 1px 0 0 oklch(1 0 0 / 0.22), 0 1px 4px oklch(0 0 0 / 0.18);
}
.btn-ghost {
  background: none;
  border-color: transparent;
  color: var(--text-dim);
  padding: 5px 10px;
  font-size: 13px;
}
.btn-ghost:hover { color: var(--bad); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
@media (prefers-reduced-motion: no-preference) {
  .btn:not(:disabled) {
    transition:
      transform 160ms cubic-bezier(0.3, 1.4, 0.6, 1),
      background-color 150ms ease,
      border-color 150ms ease,
      filter 150ms ease;
  }
  .btn:not(:disabled):hover { filter: brightness(1.05); }
  .btn:not(:disabled):active { transform: scale(0.96); }
}

.hint { font-size: 12.5px; color: var(--text-dim); }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.hidden { display: none !important; }

/* Status pills */
.pill {
  font-size: 12px;
  font-weight: 600;
  padding: 3px 11px;
  border-radius: 999px;
  background-color: color-mix(in oklab, var(--accent) 13%, transparent);
  color: var(--accent-text);
  white-space: nowrap;
}
.pill-dim { background-color: var(--track); color: var(--text-dim); }
.pill-good { background-color: var(--good-bg); color: var(--good); }
.pill-warn { background-color: var(--warn-bg); color: var(--warn); }
.pill-bad { background-color: var(--bad-bg); color: var(--bad); }

/* Team code reveal */
.code-box {
  font-size: 26px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-align: center;
  padding: 20px;
  margin: 12px 0 16px;
  background-color: var(--track);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  user-select: all;
}

.team-meta { display: flex; gap: 30px; align-items: center; flex-wrap: wrap; }
.team-meta > div { display: flex; flex-direction: column; gap: 1px; }
.meta-label { font-size: 12px; font-weight: 550; color: var(--text-dim); }
.meta-value { font-size: 16px; font-weight: 650; }

/* Run-kind selector */
.kind-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 660px) { .kind-row { grid-template-columns: 1fr; } }
.kind-option {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 11px 13px;
  cursor: pointer;
  font-weight: 400;
  font-size: 13.5px;
  transition: border-color 150ms ease, background-color 150ms ease;
}
.kind-option:has(input:checked) {
  border-color: var(--accent);
  background-color: color-mix(in oklab, var(--accent) 7%, transparent);
}
.kind-option small { color: var(--text-dim); }
.kind-option input { margin-top: 3px; accent-color: var(--accent); }

/* Live run */
.run-progress { display: flex; gap: 14px; align-items: center; padding: 6px 0; }
.spinner {
  width: 22px;
  height: 22px;
  flex: none;
  border: 2.5px solid var(--track);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.progress-line { font-weight: 550; font-size: 14px; }
.progress-sub { font-size: 12.5px; color: var(--text-dim); margin-top: 1px; }

/* Score tiles */
.score-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 10px;
  margin: 6px 0 14px;
}
.score-tile {
  background-color: var(--track);
  border-radius: var(--radius);
  padding: 12px 14px;
}
.score-tile .k { font-size: 11px; font-weight: 600; color: var(--text-dim); }
.score-tile .v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 21px;
  font-weight: 600;
  margin-top: 1px;
}
.score-tile.hero .v { color: var(--accent-text); font-size: 26px; }

/* Event-info key/value rows and copyable secrets */
.kv-list { display: flex; flex-direction: column; gap: 8px; }
.kv-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.kv-row .k { font-size: 12.5px; font-weight: 550; color: var(--text-dim); min-width: 110px; }
.kv-row .v { font-size: 14px; word-break: break-all; }
.kv-row a { color: var(--accent-text); text-decoration: none; }
.kv-row a:hover { text-decoration: underline; }
.secret {
  font-family: var(--font-mono);
  font-size: 13px;
  background-color: var(--track);
  border-radius: 8px;
  padding: 4px 10px;
  user-select: all;
  word-break: break-all;
}
.btn-copy { padding: 4px 12px; font-size: 12.5px; }
.spend-bar {
  height: 6px;
  border-radius: 999px;
  background-color: var(--track);
  overflow: hidden;
  min-width: 140px;
  flex: 1;
}
.spend-bar > div { height: 100%; border-radius: 999px; background-color: var(--accent); }
textarea {
  background-color: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.5;
  padding: 10px 12px;
  outline: none;
  resize: vertical;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3.5px color-mix(in oklab, var(--accent) 22%, transparent);
}

details summary { cursor: pointer; color: var(--text-dim); font-size: 13px; font-weight: 550; }
pre {
  background-color: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.55;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 300px;
  overflow-y: auto;
}

.error-box {
  background-color: var(--bad-bg);
  border-radius: 10px;
  color: var(--bad);
  padding: 10px 14px;
  margin-top: 10px;
  font-size: 13.5px;
}

/* Tables */
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  font-variant-numeric: tabular-nums;
}
th {
  text-align: left;
  font-size: 10.5px;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  padding: 8px 11px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td {
  padding: 9px 11px;
  border-bottom: 1px solid var(--hairline);
  white-space: nowrap;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background-color: color-mix(in oklab, var(--track) 55%, transparent); }
td.num { font-family: var(--font-mono); }
.rank { font-family: var(--font-mono); color: var(--text-dim); }
tr.podium .rank { color: var(--accent-text); font-weight: 650; }
tr.podium td:nth-child(2) { font-weight: 650; }

/* Rules */
.rules h2 { font-size: 15px; font-weight: 650; margin: 20px 0 8px; }
.rules h2:first-child { margin-top: 0; }
.rules ol, .rules ul { padding-left: 20px; display: flex; flex-direction: column; gap: 5px; }
.rules li { font-size: 14px; }
.rules p { margin: 6px 0; font-size: 14px; }
.rules .mono { font-size: 0.92em; }

footer {
  max-width: 920px;
  margin: 0 auto;
  padding: 20px;
  color: var(--text-dim);
  font-size: 12.5px;
  border-top: 1px solid var(--hairline);
}

/* Toast: a transient surface, so it gets glass. It floats over the page
   scene, never over other glass. */
.toast {
  position: fixed;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--scrim);
  backdrop-filter: blur(20px) saturate(170%);
  -webkit-backdrop-filter: blur(20px) saturate(170%);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 20px;
  font-size: 13.5px;
  font-weight: 550;
  box-shadow: inset 0 1px 0 0 oklch(1 0 0 / 0.25), 0 8px 28px oklch(0 0 0 / 0.2);
  z-index: 10;
  animation: rise 0.2s ease;
}
.toast.err { color: var(--bad); }
@media (prefers-reduced-transparency: reduce) {
  .toast {
    background-color: var(--bg);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}