/* ── Light theme (default) ── */
:root {
  --bg: #f5f5f8;
  --bg2: #ffffff;
  --bg3: #eeeef2;
  --fg: #1a1a2e;
  --muted: #5e5e73;
  --accent: #4a6cf7;
  --accent2: #8b5cf6;
  --accent-glow: rgba(74,108,247,0.12);
  --danger: #ef4444;
  --ok: #10b981;
  --warn: #f59e0b;
  --focus: #f59e0b;
  --border: rgba(0,0,0,0.08);
  --border-hover: rgba(0,0,0,0.15);
  --radius: 10px;
  --radius-lg: 16px;
  --shadow: 0 1px 6px rgba(0,0,0,0.06);
  --shadow-glow: 0 4px 16px rgba(74,108,247,0.08);
  --transition: 0.2s cubic-bezier(.4,0,.2,1);
  --font: Inter,ui-sans-serif,system-ui,-apple-system,sans-serif;
  --font-mono: ui-monospace,monospace;
  --header-bg: rgba(255,255,255,0.85);
  --body-gradient: radial-gradient(ellipse at 50% 0%,#e8e8f0 0%,var(--bg) 70%);
}

/* ── Dark theme ── */
/* Contrast: --muted #9898ad on #050508 ≈ 7.1:1 (AAA); on #14141f ≈ 6.3:1 (AA) */
[data-theme="dark"] {
  --bg: #050508;
  --bg2: #0c0c14;
  --bg3: #14141f;
  --fg: #e8e6f0;
  --muted: #9898ad;
  --accent: #6b9bff;
  --accent2: #b48cff;
  --accent-glow: rgba(107,155,255,0.15);
  --danger: #ff6b84;
  --ok: #3ee8a8;
  --warn: #fdd04e;
  --focus: #fdd04e;
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.18);
  --shadow: 0 2px 12px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 24px rgba(107,155,255,0.10);
  --header-bg: rgba(12,12,20,0.88);
  --body-gradient: radial-gradient(ellipse at 50% 0%,#12122a 0%,var(--bg) 70%);
}

/* ── Reset ── */
*,*::before,*::after { box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  min-height: 100vh;
  background-image: var(--body-gradient);
  transition: background 0.3s, color 0.3s;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover, a:focus-visible { opacity: 0.85; }
img { max-width: 100%; height: auto; }
:focus { outline: none; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 4px; }

/* ── Skip link ── */
.skip-link {
  position: absolute; top: -100px; left: 0;
  background: var(--focus); color: #000;
  padding: 8px 16px; z-index: 1000;
  font-weight: 700; border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { top: 0; }

/* ── Header / Nav ── */
.header-nav {
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px;
  padding: 12px 20px;
  background: var(--header-bg);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
}
.header-nav .brand { font-weight: 700; color: var(--accent); font-size: 0.85rem; letter-spacing: 0.02em; white-space: nowrap; }
.header-nav .nav-links { display: flex; gap: 14px; flex-wrap: wrap; }
.header-nav .nav-links a { font-size: 0.8rem; color: var(--muted); font-weight: 500; transition: color var(--transition); }
.header-nav .nav-links a:hover { color: var(--fg); }
.header-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.stress-pill { font-size: 0.7rem; padding: 4px 12px; border: 1px solid var(--danger); border-radius: 999px; color: var(--danger); font-weight: 600; }

/* ── Theme toggle ── */
.theme-toggle {
  background: none; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 6px 10px; cursor: pointer; font-size: 1rem; line-height: 1;
  color: var(--fg); transition: all var(--transition);
}
.theme-toggle:hover { border-color: var(--accent); background: var(--accent-glow); }

/* ── Layout ── */
.wrap { max-width: 960px; margin: 0 auto; padding: 24px 16px; }
.grid { display: grid; gap: 16px; }
.cols2 { grid-template-columns: 1fr; }
@media (min-width: 680px) { .cols2 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 900px) { .wrap { padding: 32px 24px; } }

/* ── Card ── */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.card:hover { border-color: var(--border-hover); box-shadow: var(--shadow-glow); }

/* ── Typography ── */
.h1 { font-size: 1.5rem; margin: 0 0 8px; color: var(--fg); font-weight: 700; }
.p { margin: 0 0 12px; color: var(--fg); }
.muted { color: var(--muted); font-size: 0.8rem; }
hr { border: none; border-top: 1px solid var(--border); margin: 20px 0; }

/* ── Form fields ── */
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 0.8rem; margin-bottom: 6px; color: var(--muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; font-size: 0.95rem;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--fg);
  transition: border-color var(--transition), box-shadow var(--transition);
  font-family: var(--font);
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; min-width: 44px;
  padding: 10px 20px; font-size: 0.9rem; font-weight: 600;
  font-family: var(--font);
  border: 1.5px solid var(--border); border-radius: var(--radius);
  background: var(--bg2); color: var(--fg);
  cursor: pointer; text-align: center;
  transition: all var(--transition); text-decoration: none;
}
.btn:hover, .btn:focus-visible {
  border-color: var(--border-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  text-decoration: none;
}
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.primary:hover { opacity: 0.9; box-shadow: 0 4px 20px var(--accent-glow); }
.btn.full { width: 100%; }
.btn.ghost { background: transparent; color: var(--muted); border-color: var(--border); }
.btn.ghost:hover { color: var(--fg); border-color: var(--border-hover); }
.btn.danger { background: rgba(239,68,68,0.08); color: var(--danger); border-color: rgba(239,68,68,0.2); }
.btn.danger:hover { background: var(--danger); color: #fff; }
.btn.ok { background: rgba(16,185,129,0.08); color: var(--ok); border-color: rgba(16,185,129,0.2); }
.btn.ok:hover { background: var(--ok); color: #fff; }
.btn.sm { padding: 8px 14px; font-size: 0.75rem; min-height: 36px; }

/* ── Components ── */
.bubble {
  background: var(--bg3); border-left: 3px solid var(--accent);
  padding: 14px 16px; margin: 12px 0;
  font-style: italic; color: var(--muted);
  border-radius: 0 var(--radius) var(--radius) 0; font-size: 0.9rem;
}
.pill { display: inline-block; padding: 4px 12px; font-size: 0.7rem; border: 1px solid var(--border); border-radius: 999px; font-weight: 500; }

.node-pill { padding: 10px 14px; border-radius: var(--radius); font-size: 0.8rem; text-align: center; font-weight: 500; transition: all var(--transition); }
.node-pill.unlocked { background: rgba(16,185,129,0.1); color: var(--ok); border: 1px solid rgba(16,185,129,0.2); }
.node-pill.locked { background: var(--bg); border: 1px solid var(--border); color: var(--muted); }

.online-pill { padding: 4px 10px; font-size: 0.7rem; border-radius: 999px; font-weight: 600; }
.online-pill.online { background: rgba(16,185,129,0.12); color: var(--ok); border: 1px solid rgba(16,185,129,0.2); }
.online-pill.offline { background: rgba(239,68,68,0.12); color: var(--danger); border: 1px solid rgba(239,68,68,0.2); }

.debug-pills { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }
.debug-pills .pill { font-family: var(--font-mono); font-size: 0.7rem; }

.placeholder-box {
  background: var(--bg3); border: 1px dashed var(--border);
  border-radius: var(--radius); min-height: 120px;
  display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 0.85rem;
}

/* ── Lore entries ── */
.lore-entry { margin-bottom: 12px; padding: 14px; background: var(--bg3); border-radius: var(--radius); border: 1px solid var(--border); transition: border-color var(--transition); }
.lore-entry:hover { border-color: var(--border-hover); }
.lore-entry.locked { opacity: 0.4; }
.lore-entry h3 { margin: 0 0 4px; font-size: 0.95rem; font-weight: 600; }
.lore-entry p { margin: 0; font-size: 0.85rem; color: var(--muted); }

/* ── Checklist ── */
.checklist label { display: flex; align-items: center; gap: 10px; padding: 8px 0; cursor: pointer; font-size: 0.9rem; }
.checklist input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--accent); }

/* ── Lists ── */
ul { padding-left: 20px; margin: 0 0 12px; }
li { margin-bottom: 6px; font-size: 0.9rem; }

/* ── Log ── */
.log-list { max-height: 300px; overflow-y: auto; background: var(--bg); padding: 12px; border-radius: var(--radius); font-family: var(--font-mono); font-size: 0.7rem; border: 1px solid var(--border); }
.log-list div { padding: 4px 0; border-bottom: 1px solid var(--border); }

/* ── Map ── */
.map-img { width: 100%; height: auto; border-radius: var(--radius); }
#map { width: 100%; height: 400px; border-radius: var(--radius); border: 1px solid var(--border); }

/* ── Hub Grid ── */
.hub-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (min-width: 500px) { .hub-grid { grid-template-columns: 1fr 1fr 1fr; } }

.hub-tile {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 6px; padding: 16px 10px;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--fg);
  font-size: 0.8rem; font-weight: 500; text-align: center;
  transition: all var(--transition); cursor: pointer; text-decoration: none;
  min-height: 80px;
}
.hub-tile:hover, .hub-tile:focus-visible {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
  text-decoration: none;
}
.hub-tile .tile-icon { font-size: 1.4rem; }

.hub-tile.primary-tile { border-color: rgba(74,108,247,0.3); background: rgba(74,108,247,0.05); }
.hub-tile.primary-tile:hover { border-color: var(--accent); box-shadow: 0 6px 20px var(--accent-glow); }

.hub-tile.danger-tile { border-color: rgba(239,68,68,0.2); }
.hub-tile.danger-tile:hover { border-color: var(--danger); }

.hub-tile.story-tile { border-color: rgba(139,92,246,0.3); background: rgba(139,92,246,0.04); }
.hub-tile.story-tile:hover { border-color: var(--accent2); box-shadow: 0 6px 20px rgba(139,92,246,0.1); }

/* ── Next-step banner ── */
.next-step-banner {
  background: linear-gradient(135deg, rgba(74,108,247,0.06), rgba(139,92,246,0.04));
  border: 1px solid rgba(74,108,247,0.12);
  border-radius: var(--radius); padding: 16px 20px;
  display: flex; align-items: center; gap: 12px;
}
[data-theme="dark"] .next-step-banner {
  background: linear-gradient(135deg, rgba(93,138,255,0.1), rgba(168,122,255,0.08));
  border-color: rgba(93,138,255,0.15);
}
.next-step-banner .step-icon { font-size: 1.5rem; flex-shrink: 0; }
.next-step-banner .step-text { font-size: 0.9rem; font-weight: 500; }

/* ── Progress bar ── */
.progress-bar { background: var(--bg3); border-radius: 999px; height: 6px; overflow: hidden; margin: 8px 0; }
.progress-fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--accent), var(--accent2)); transition: width 0.5s ease; }

/* ── Section label ── */
.section-label {
  font-size: 0.7rem; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--muted);
  font-weight: 600; margin: 0 0 10px;
}

/* ── Inventory item ── */
.inv-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; background: var(--bg3);
  border-radius: var(--radius); font-size: 0.85rem;
  margin-bottom: 6px; border: 1px solid var(--border);
}

/* ── AR Camera ── */
.ar-video-wrap {
  position: relative; width: 100%; border-radius: var(--radius);
  overflow: hidden; background: #000; aspect-ratio: 4/3;
}
.ar-video-wrap video { width: 100%; height: 100%; object-fit: cover; }
.ar-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  pointer-events: none;
}
.ar-overlay .scan-frame {
  width: 60%; height: 60%;
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  box-shadow: 0 0 30px var(--accent-glow);
  animation: scanPulse 2s ease-in-out infinite;
}
@keyframes scanPulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}
.ar-hint { text-align: center; margin-top: 12px; font-size: 0.85rem; color: var(--muted); }
.ar-result { margin-top: 16px; padding: 16px; background: var(--bg3); border-radius: var(--radius); border: 1px solid var(--border); }

/* ── Google Form embed ── */
.form-embed {
  width: 100%; min-height: 600px; border: none;
  border-radius: var(--radius); background: var(--bg2);
}

/* ── Route Map SVG ── */
.route-map-card { overflow-x: auto; }
.route-map-svg { width: 100%; max-width: 420px; display: block; margin: 0 auto; }
.route-edge { stroke: var(--border); stroke-width: 2; }
.route-node circle { fill: var(--bg3); stroke: var(--muted); stroke-width: 2; transition: all 0.3s; }
.route-node text { fill: var(--muted); font-family: var(--font); pointer-events: none; }
.route-node.unlocked circle { fill: var(--accent); stroke: var(--accent); }
.route-node.unlocked text { fill: #fff; font-weight: 600; }

/* ── Hint toast ── */
.hint-toast {
  margin-top: 8px; padding: 10px 14px;
  background: rgba(245,158,11,0.10); border: 1px solid rgba(245,158,11,0.25);
  border-radius: var(--radius); font-size: 0.82rem; color: var(--warn);
  animation: hintFadeIn 0.3s ease;
}
[data-theme="dark"] .hint-toast {
  background: rgba(253,208,78,0.08); border-color: rgba(253,208,78,0.20);
}
@keyframes hintFadeIn { from { opacity:0; transform:translateY(-4px); } to { opacity:1; transform:translateY(0); } }

/* ── Responsive ── */
@media (max-width: 480px) {
  .header-nav { padding: 10px 14px; gap: 8px; }
  .header-nav .brand { font-size: 0.75rem; }
  .header-nav .nav-links { gap: 10px; }
  .header-nav .nav-links a { font-size: 0.7rem; }
  .header-actions { margin-left: 0; width: 100%; justify-content: space-between; }
  .stress-pill { font-size: 0.65rem; }
  .wrap { padding: 16px 12px; }
  .hub-grid { grid-template-columns: 1fr 1fr; }
  .card { padding: 16px; }
  .h1 { font-size: 1.25rem; }
  .btn { padding: 10px 16px; font-size: 0.85rem; }
  .btn.sm { padding: 6px 10px; font-size: 0.7rem; }
}
@media (max-width: 360px) {
  .header-nav .nav-links { display: none; }
}

/* ── Numpad ── */
.numpad-display{text-align:center;font-family:var(--font-mono);font-size:2.2rem;letter-spacing:12px;padding:16px;background:var(--bg3);border:2px solid var(--border);border-radius:var(--radius);margin-bottom:16px;min-height:60px;line-height:1;color:var(--fg);transition:border-color 0.3s;}
.numpad-display.error{border-color:var(--danger);animation:numShake 0.4s ease;}
.numpad-display.success{border-color:var(--ok);}
@keyframes numShake{0%,100%{transform:translateX(0)}20%,60%{transform:translateX(-6px)}40%,80%{transform:translateX(6px)}}
.numpad-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;max-width:280px;margin:0 auto;}
.numpad-key{aspect-ratio:1;display:flex;align-items:center;justify-content:center;font-size:1.4rem;font-weight:600;border:2px solid var(--border);border-radius:var(--radius);background:var(--bg2);color:var(--fg);cursor:pointer;transition:all var(--transition);user-select:none;-webkit-user-select:none;font-family:var(--font-mono);}
.numpad-key:hover{border-color:var(--accent);background:rgba(74,108,247,0.06);transform:scale(1.04);}
.numpad-key:active{transform:scale(0.95);background:rgba(74,108,247,0.12);}
.numpad-key.fn{font-size:1rem;color:var(--muted);}
.numpad-key.fn.enter{background:var(--accent);color:#fff;border-color:var(--accent);}
.numpad-key.fn.enter:hover{filter:brightness(1.1);}
.numpad-dots{display:flex;gap:8px;justify-content:center;margin-bottom:12px;}
.numpad-dot{width:14px;height:14px;border-radius:50%;border:2px solid var(--border);transition:all 0.2s;}
.numpad-dot.filled{background:var(--accent);border-color:var(--accent);}