/* Cyber Castle — shared tokens, page layout and demo kit.
   Demos (demos/*.js) should only use the tokens and .dk-* classes below. */
:root {
  color-scheme: dark;
  --bg: #070b18;
  --bg-2: #0c1330;
  --panel: #111a3a;
  --panel-2: #17224a;
  --line: rgba(160, 180, 255, .16);
  --line-strong: rgba(160, 180, 255, .32);
  --ink: #f2f5ff;
  --muted: #a8b3d6;
  --dim: #6f7aa3;
  --good: #3cf0a5;   /* friends, safe, pass */
  --bad: #ff5c7a;    /* troublemakers, blocked, fail */
  --warn: #ffc94a;   /* suspicious, pending */
  --info: #5cc8ff;   /* data, packets, neutral */
  --violet: #a78bfa; /* magic, secrets */
  --pink: #ff8ad8;
  --radius: 22px;
  --radius-sm: 12px;
  --shadow: 0 24px 60px -24px rgba(0, 0, 0, .8);
  --font-fun: "Baloo 2", "Trebuchet MS", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(167, 139, 250, .18), transparent 60%),
    radial-gradient(900px 500px at -10% 20%, rgba(92, 200, 255, .12), transparent 60%),
    var(--bg);
  color: var(--ink);
  font: 16px/1.6 var(--font-body);
  overflow-x: hidden;
}
a { color: var(--info); }
a:hover { color: var(--ink); }
button { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--warn); outline-offset: 3px; border-radius: 6px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 50; background: var(--warn); color: #000; padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 8px; }

body.mode-kid .pro-only, body.mode-pro .kid-only { display: none !important; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px clamp(16px, 4vw, 40px);
  background: rgba(7, 11, 24, .72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; background: none; border: 0; cursor: pointer; padding: 0; text-align: left; }
.brand-mark { font-size: 28px; filter: drop-shadow(0 0 10px rgba(92, 200, 255, .6)); }
.brand-text { font: 800 20px/1 var(--font-fun); letter-spacing: .04em; }
.brand-text small { display: block; font: 600 10px/1.4 var(--font-mono); color: var(--muted); letter-spacing: .12em; margin-top: 2px; }
.top-actions { display: flex; align-items: center; gap: 8px; }
.mode-switch { display: flex; background: var(--panel); border: 1px solid var(--line); border-radius: 999px; padding: 4px; }
.mode-switch button {
  border: 0; background: transparent; padding: 7px 14px; border-radius: 999px; cursor: pointer;
  font-weight: 600; font-size: 14px; color: var(--muted); white-space: nowrap; transition: background .2s, color .2s;
}
.mode-switch button[aria-pressed="true"] { background: linear-gradient(135deg, var(--violet), var(--info)); color: #050816; }
.sound-toggle { width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line); background: var(--panel); cursor: pointer; font-size: 18px; }
.sound-toggle[aria-pressed="true"] { border-color: var(--good); box-shadow: 0 0 0 3px rgba(60, 240, 165, .15); }
@media (max-width: 640px) {
  .brand-text small { display: none; }
  .brand-text { font-size: 16px; }
  .mode-switch button { padding: 7px 10px; font-size: 13px; }
  .mode-switch button .lbl-long { display: none; }
}
@media (max-width: 420px) {
  .brand-text { display: none; }
  .topbar { gap: 6px; }
  .sound-toggle { width: 38px; height: 38px; }
}

/* ---------- Buttons (shared with demos) ---------- */
.btn, .dk-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 10px 18px; border-radius: 999px;
  border: 1px solid var(--line-strong); background: var(--panel-2); color: var(--ink);
  font: 700 15px/1.1 var(--font-body); cursor: pointer; text-decoration: none;
  transition: transform .15s ease, box-shadow .2s, background .2s, border-color .2s;
  -webkit-tap-highlight-color: transparent; user-select: none;
}
.btn:hover, .dk-btn:hover { transform: translateY(-2px); border-color: var(--info); color: var(--ink); }
.btn:active, .dk-btn:active { transform: translateY(1px) scale(.98); }
.btn--primary, .dk-btn--primary { background: linear-gradient(135deg, var(--good), var(--info)); color: #04121a; border-color: transparent; box-shadow: 0 10px 30px -10px rgba(60, 240, 165, .6); }
.btn--primary:hover, .dk-btn--primary:hover { color: #04121a; }
.btn--ghost { background: transparent; }
.btn--big { min-height: 54px; padding: 14px 26px; font-size: 17px; }
.dk-btn--bad { background: linear-gradient(135deg, var(--bad), #ff9a5c); color: #1a0508; border-color: transparent; }
.dk-btn--bad:hover { color: #1a0508; }
.dk-btn--warn { background: var(--warn); color: #1d1400; border-color: transparent; }
.dk-btn--warn:hover { color: #1d1400; }
.dk-btn--small { min-height: 36px; padding: 6px 12px; font-size: 13px; }
.dk-btn[aria-pressed="true"] { background: var(--good); color: #04121a; border-color: transparent; }
.dk-btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: min(88vh, 820px);
  display: grid; align-items: center;
  padding: 40px clamp(16px, 5vw, 64px) 56px;
  overflow: hidden;
}
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-copy { position: relative; max-width: 600px; z-index: 1; }
.eyebrow { font: 600 12px/1 var(--font-mono); letter-spacing: .18em; text-transform: uppercase; color: var(--good); margin: 0 0 14px; }
h1, h2, h3 { font-family: var(--font-fun); line-height: 1.05; margin: 0; letter-spacing: -.01em; }
h1 { font-size: clamp(40px, 7vw, 76px); font-weight: 800; }
h1 em, h2 em { font-style: normal; background: linear-gradient(120deg, var(--good), var(--info) 50%, var(--violet)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: clamp(17px, 2vw, 20px); color: var(--muted); margin: 20px 0 28px; max-width: 56ch; }
.lede a { color: var(--ink); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-stats div { background: rgba(17, 26, 58, .7); border: 1px solid var(--line); border-radius: 16px; padding: 10px 16px; backdrop-filter: blur(6px); min-width: 120px; }
.hero-stats b { display: block; font: 800 28px/1 var(--font-fun); font-variant-numeric: tabular-nums; }
.hero-stats div:nth-child(1) b { color: var(--bad); }
.hero-stats div:nth-child(2) b { color: var(--good); }
.hero-stats div:nth-child(3) b { color: var(--info); }
.hero-stats span { font-size: 12px; color: var(--muted); }
@media (max-width: 760px) {
  .hero { min-height: auto; padding-top: 300px; }
  .hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 180px, var(--bg) 380px); pointer-events: none; }
}

/* ---------- Section heads ---------- */
.section-head { max-width: 760px; margin: 0 auto 32px; text-align: center; }
.section-head h2 { font-size: clamp(32px, 5vw, 52px); }
.section-head p:not(.eyebrow) { color: var(--muted); margin: 14px auto 0; max-width: 60ch; }

/* ---------- Castle map ---------- */
.map { padding: 72px clamp(16px, 5vw, 64px); }
.map-board {
  position: relative; max-width: 1100px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px;
}
@media (max-width: 900px) { .map-board { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.map-node {
  position: relative; display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center;
  padding: 18px 12px 16px; border-radius: var(--radius); cursor: pointer;
  background: linear-gradient(180deg, var(--panel-2), var(--panel)); border: 1px solid var(--line);
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.map-node:hover { transform: translateY(-4px) rotate(-.5deg); border-color: var(--c, var(--info)); box-shadow: 0 16px 40px -16px var(--c, var(--info)); }
.map-node .face { width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center; font-size: 34px; background: radial-gradient(circle at 35% 30%, rgba(255,255,255,.25), transparent 60%), var(--c, var(--info)); box-shadow: 0 0 0 6px rgba(255,255,255,.04), 0 10px 24px -8px var(--c); animation: bob 3.2s ease-in-out infinite; animation-delay: var(--d, 0s); }
.map-node b { font: 700 17px/1.1 var(--font-fun); }
.map-node small { font: 500 11px/1.3 var(--font-mono); color: var(--dim); overflow-wrap: anywhere; }
.map-node .job { font-size: 13px; color: var(--muted); line-height: 1.35; }
.map-node .zone { position: absolute; top: 10px; right: 12px; font: 600 9px/1 var(--font-mono); letter-spacing: .1em; color: var(--dim); text-transform: uppercase; }
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@media (prefers-reduced-motion: reduce) { .map-node .face { animation: none; } }

/* ---------- Helper sections ---------- */
.helpers { padding: 24px clamp(16px, 4vw, 48px) 40px; display: grid; gap: clamp(48px, 8vw, 96px); }
.helper {
  --c: var(--info);
  max-width: 1240px; margin: 0 auto; width: 100%;
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(20px, 3vw, 40px); align-items: start;
  scroll-margin-top: 84px;
}
.helper:nth-child(even) { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.helper:nth-child(even) .helper-copy { order: 2; }
@media (max-width: 960px) {
  .helper, .helper:nth-child(even) { grid-template-columns: 1fr; }
  .helper:nth-child(even) .helper-copy { order: 0; }
}
.helper-copy { padding-top: 8px; }
.helper-id { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.helper-face { flex: none; width: 76px; height: 76px; border-radius: 24px; display: grid; place-items: center; font-size: 42px; background: radial-gradient(circle at 30% 25%, rgba(255,255,255,.3), transparent 60%), var(--c); box-shadow: 0 14px 34px -12px var(--c); transform: rotate(-6deg); }
.helper-num { font: 600 12px/1 var(--font-mono); color: var(--c); letter-spacing: .14em; }
.helper-copy h2 { font-size: clamp(30px, 4vw, 44px); margin-top: 4px; }
.helper-real { font: 500 13px/1.4 var(--font-mono); color: var(--muted); margin-top: 6px; }
.helper-real a { color: var(--c); }
.helper-story { font-size: 19px; line-height: 1.55; margin: 0 0 18px; }
body.mode-pro .helper-story { font-size: 16px; color: var(--muted); }
.steps { list-style: none; padding: 0; margin: 0 0 20px; display: grid; gap: 10px; counter-reset: s; }
.steps li { counter-increment: s; display: flex; gap: 12px; align-items: flex-start; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 10px 14px; font-weight: 600; }
.steps li::before { content: counter(s); flex: none; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--c); color: #050816; font: 800 14px/1 var(--font-fun); }
.facts { display: grid; gap: 8px; margin: 0 0 18px; padding: 0; list-style: none; font-size: 14.5px; color: var(--muted); }
.facts li { padding-left: 18px; position: relative; }
.facts li::before { content: ""; position: absolute; left: 0; top: .62em; width: 7px; height: 7px; border-radius: 2px; background: var(--c); transform: rotate(45deg); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }
.tag, .dk-chip { display: inline-flex; align-items: center; gap: 6px; font: 600 12px/1 var(--font-mono); padding: 6px 10px; border-radius: 999px; background: rgba(255,255,255,.05); border: 1px solid var(--line); color: var(--muted); }
.repo-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--ink); text-decoration: none; border-bottom: 2px solid var(--c); padding-bottom: 2px; }
.repo-link:hover { color: var(--c); }
.try-hint { display: inline-flex; gap: 8px; align-items: center; margin-top: 14px; font: 700 15px/1.3 var(--font-fun); color: var(--c); }
.try-hint::after { content: "→"; animation: nudge 1.4s ease-in-out infinite; }
@media (max-width: 960px) { .try-hint::after { content: "↓"; } }
@keyframes nudge { 50% { transform: translate(4px, 2px); } }

/* ---------- Demo window ---------- */
.demo {
  position: relative; border-radius: var(--radius); overflow: hidden;
  background: linear-gradient(180deg, #0d1531, #0a1026);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow), 0 0 0 1px rgba(0,0,0,.4), 0 0 60px -30px var(--c);
}
.demo-bar { display: flex; align-items: center; gap: 10px; padding: 10px 14px; background: rgba(255,255,255,.03); border-bottom: 1px solid var(--line); font: 600 12px/1 var(--font-mono); color: var(--muted); }
.demo-bar .dots { display: flex; gap: 6px; }
.demo-bar .dots i { width: 11px; height: 11px; border-radius: 50%; background: var(--dim); }
.demo-bar .dots i:nth-child(1) { background: var(--bad); }
.demo-bar .dots i:nth-child(2) { background: var(--warn); }
.demo-bar .dots i:nth-child(3) { background: var(--good); }
.demo-bar .title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.demo-bar .live { display: inline-flex; align-items: center; gap: 6px; color: var(--good); }
.demo-bar .live::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--good); box-shadow: 0 0 10px var(--good); animation: pulse 1.6s infinite; }
.demo-bar .live.paused { color: var(--dim); }
.demo-bar .live.paused::before { background: var(--dim); box-shadow: none; animation: none; }
@keyframes pulse { 50% { opacity: .35; } }
.demo-stage { position: relative; min-height: 420px; }
.demo-stage.loading::after { content: "Waking up the helper…"; position: absolute; inset: 0; display: grid; place-items: center; color: var(--dim); font: 600 14px var(--font-mono); }
.narrator { display: flex; gap: 12px; align-items: flex-start; padding: 12px 16px 14px; border-top: 1px solid var(--line); background: rgba(0,0,0,.25); min-height: 64px; }
.narrator .who { flex: none; font-size: 26px; line-height: 1; margin-top: 2px; }
.narrator p { margin: 0; font: 600 16px/1.45 var(--font-fun); color: var(--ink); transition: color .3s; }
body.mode-pro .narrator p { font: 500 13.5px/1.5 var(--font-mono); }
.narrator[data-tone="good"] p { color: var(--good); }
.narrator[data-tone="bad"] p { color: var(--bad); }
.narrator[data-tone="warn"] p { color: var(--warn); }
.narrator p.flash { animation: flash .5s; }
@keyframes flash { from { transform: translateY(4px); opacity: .2; } }

/* ---------- Demo kit (.dk-*) — shared building blocks for demos ---------- */
.dk-fill { position: absolute; inset: 0; }
.dk-canvas { display: block; width: 100%; height: 100%; }
.dk-controls { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 12px 14px; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.02); }
.dk-controls--bottom { border-bottom: 0; border-top: 1px solid var(--line); }
.dk-spacer { flex: 1; }
.dk-input { min-height: 44px; padding: 10px 14px; border-radius: 12px; border: 1px solid var(--line-strong); background: #060a1a; color: var(--ink); font: 600 16px var(--font-mono); min-width: 0; }
.dk-input:focus { border-color: var(--info); outline: none; box-shadow: 0 0 0 3px rgba(92, 200, 255, .2); }
.dk-label { font: 600 12px/1 var(--font-mono); color: var(--muted); letter-spacing: .06em; text-transform: uppercase; }
.dk-chip--good { color: var(--good); border-color: rgba(60, 240, 165, .4); background: rgba(60, 240, 165, .08); }
.dk-chip--bad { color: var(--bad); border-color: rgba(255, 92, 122, .4); background: rgba(255, 92, 122, .08); }
.dk-chip--warn { color: var(--warn); border-color: rgba(255, 201, 74, .4); background: rgba(255, 201, 74, .08); }
.dk-chip--info { color: var(--info); border-color: rgba(92, 200, 255, .4); background: rgba(92, 200, 255, .08); }
.dk-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 14px; }
.dk-meter { position: relative; height: 14px; border-radius: 999px; background: #060a1a; border: 1px solid var(--line); overflow: hidden; }
.dk-meter > i { position: absolute; inset: 0 auto 0 0; width: 0%; border-radius: inherit; background: linear-gradient(90deg, var(--good), var(--warn), var(--bad)); transition: width .4s ease; }
.dk-stat { display: flex; flex-direction: column; gap: 2px; }
.dk-stat b { font: 800 24px/1 var(--font-fun); font-variant-numeric: tabular-nums; }
.dk-stat span { font-size: 11px; color: var(--muted); font-family: var(--font-mono); }
.dk-log { font: 500 12px/1.55 var(--font-mono); color: var(--muted); background: #050816; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 10px 12px; overflow: auto; }
.dk-log .good { color: var(--good); } .dk-log .bad { color: var(--bad); } .dk-log .warn { color: var(--warn); } .dk-log .info { color: var(--info); }
.dk-pop { animation: dkpop .45s cubic-bezier(.3, 1.6, .5, 1); }
@keyframes dkpop { from { transform: scale(.4); opacity: 0; } }
.dk-shake { animation: dkshake .4s; }
@keyframes dkshake { 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }
.dk-big-emoji { font-size: 44px; line-height: 1; }

/* ---------- Outro / footer ---------- */
.outro { padding: 72px clamp(16px, 5vw, 64px); }
.outro-card { max-width: 900px; margin: 0 auto; text-align: center; padding: clamp(28px, 5vw, 56px); border-radius: 32px; background: radial-gradient(600px 300px at 50% 0%, rgba(60, 240, 165, .12), transparent 70%), var(--panel); border: 1px solid var(--line-strong); }
.outro-card h2 { font-size: clamp(28px, 4vw, 44px); margin-bottom: 16px; }
.outro-card p { color: var(--muted); max-width: 62ch; margin: 0 auto 14px; }
.outro-card .hero-cta { justify-content: center; margin-top: 24px; }
.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; padding: 24px clamp(16px, 5vw, 64px) 32px; border-top: 1px solid var(--line); font: 500 12px/1.5 var(--font-mono); color: var(--dim); }