/* ==========================================================================
   Learn Claude Code · design system
   Dark by default, light theme via [data-theme="light"] or system preference.
   ========================================================================== */

:root {
  --bg: #0b0a10;
  --bg-2: #12111a;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.18);
  --text: #f4f1ec;
  --text-2: #b9b4ab;
  --text-3: #8a857d;
  --accent: #e8825f;          /* warm coral */
  --accent-2: #f5b36b;        /* amber */
  --accent-3: #b69cff;        /* lavender */
  --accent-4: #5fd3c4;        /* mint */
  --good: #4ade80;
  --bad: #f87171;
  --code-bg: #15131d;
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
  --radius: 18px;
  --radius-sm: 12px;
  --maxw: 1180px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Space Grotesk", var(--font);
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --grad: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 45%, var(--accent-3) 100%);
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #fbf8f3; --bg-2: #f3eee6; --surface: rgba(255,255,255,.7); --surface-2: rgba(255,255,255,.95);
    --border: rgba(40,30,20,.1); --border-strong: rgba(40,30,20,.2);
    --text: #1d1a16; --text-2: #4d473f; --text-3: #777066;
    --accent: #c95f3c; --accent-2: #c9852f; --accent-3: #7357d8; --accent-4: #158f80;
    --good: #15803d; --bad: #c02626; --code-bg: #1b1922;
    --shadow: 0 20px 50px -24px rgba(60, 40, 20, .25);
    color-scheme: light;
  }
}
:root[data-theme="light"] {
  --bg: #fbf8f3; --bg-2: #f3eee6; --surface: rgba(255,255,255,.7); --surface-2: rgba(255,255,255,.95);
  --border: rgba(40,30,20,.1); --border-strong: rgba(40,30,20,.2);
  --text: #1d1a16; --text-2: #4d473f; --text-3: #777066;
  --accent: #c95f3c; --accent-2: #c9852f; --accent-3: #7357d8; --accent-4: #158f80;
  --good: #15803d; --bad: #c02626; --code-bg: #1b1922;
  --shadow: 0 20px 50px -24px rgba(60, 40, 20, .25);
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--font); font-size: 17px; line-height: 1.65;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; }
::selection { background: color-mix(in srgb, var(--accent) 40%, transparent); }
:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; border-radius: 6px; }

.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--accent); color: #fff; padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 16px; }

/* ---------- Ambient background ---------- */
.aurora { position: fixed; inset: 0; z-index: -2; overflow: hidden; pointer-events: none; }
.aurora span {
  position: absolute; width: 60vmax; height: 60vmax; border-radius: 50%;
  --c: var(--accent); background: radial-gradient(closest-side, var(--c), color-mix(in srgb, var(--c) 40%, transparent) 45%, transparent);
  opacity: .26; animation: drift 28s ease-in-out infinite alternate; will-change: transform;
}
.aurora span:nth-child(1) { top: -25vmax; left: -15vmax; }
.aurora span:nth-child(2) { --c: var(--accent-3); top: -10vmax; right: -25vmax; animation-delay: -8s; opacity: .18; }
.aurora span:nth-child(3) { --c: var(--accent-4); bottom: -35vmax; left: 20vw; animation-delay: -16s; opacity: .12; }
@keyframes drift { to { transform: translate(8vmax, 6vmax) rotate(25deg) scale(1.1); } }
.grain {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.gridlines {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 20%, transparent 75%);
}

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 28px; } }
section { position: relative; }
.section { padding: 88px 0; }
.section-sm { padding: 48px 0; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(160%) blur(16px); -webkit-backdrop-filter: saturate(160%) blur(16px);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; gap: 16px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--font-display); font-weight: 700; font-size: 18px; letter-spacing: -.02em; white-space: nowrap; }
.brand-mark { width: 32px; height: 32px; flex-shrink: 0; }
@media (max-width: 380px) { .brand { font-size: 16px; gap: 8px; } .brand-mark { width: 28px; height: 28px; } }
.brand b { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav-links { display: none; gap: 4px; margin-left: auto; }
.nav-links a { text-decoration: none; color: var(--text-2); font-size: 15px; font-weight: 500; padding: 8px 12px; border-radius: 10px; transition: color .2s, background .2s; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); background: var(--surface-2); }
.nav-tools { display: flex; align-items: center; gap: 8px; margin-left: auto; }
@media (min-width: 1040px) { .nav-links { display: flex; } .nav-tools { margin-left: 8px; } }
.icon-btn {
  width: 40px; height: 40px; display: inline-grid; place-items: center; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--border); color: var(--text); cursor: pointer;
}
.icon-btn:hover { background: var(--surface-2); }
.icon-btn svg { width: 18px; height: 18px; }
.menu-btn { display: inline-grid; }
@media (min-width: 1040px) { .menu-btn { display: none; } }
.mobile-nav { display: none; border-top: 1px solid var(--border); padding: 8px 16px 16px; }
.mobile-nav.open { display: grid; }
.mobile-nav a { text-decoration: none; padding: 12px 8px; border-bottom: 1px solid var(--border); color: var(--text-2); font-weight: 500; }
@media (min-width: 1040px) { .mobile-nav { display: none !important; } }
.xp-pill {
  display: inline-flex; align-items: center; gap: 6px; height: 40px; padding: 0 12px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--border); font-size: 14px; font-weight: 600; text-decoration: none; white-space: nowrap;
}
.xp-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 12px var(--accent); }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { font-family: var(--font-display); letter-spacing: -.025em; line-height: 1.12; margin: 0 0 .5em; text-wrap: balance; }
h1 { font-size: clamp(40px, 7vw, 80px); font-weight: 700; }
h2 { font-size: clamp(30px, 4.4vw, 50px); font-weight: 700; }
h3 { font-size: 22px; font-weight: 600; }
p { margin: 0 0 1em; }
.lead { font-size: clamp(18px, 2.1vw, 21px); color: var(--text-2); max-width: 680px; text-wrap: pretty; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.muted { color: var(--text-2); }
.small { font-size: 14px; }
code { font-family: var(--font-mono); font-size: .88em; background: var(--surface-2); border: 1px solid var(--border); padding: .1em .4em; border-radius: 6px; }
pre { background: var(--code-bg); color: #ece8f5; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 18px 20px; overflow-x: auto; font-size: 14.5px; line-height: 1.6; position: relative; }
pre code { background: none; border: 0; padding: 0; font-size: inherit; color: inherit; }
.copy-btn {
  position: absolute; top: 8px; right: 8px; font: 600 12px var(--font); color: #ece8f5; cursor: pointer;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); border-radius: 8px; padding: 5px 9px; opacity: 0; transition: opacity .2s;
}
pre:hover .copy-btn, .copy-btn:focus { opacity: 1; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: 52px; padding: 0 24px;
  border-radius: 14px; font: 600 16px var(--font); text-decoration: none; cursor: pointer; border: 1px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, background .2s; white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--grad); color: #1a0f0a; box-shadow: 0 10px 30px -10px var(--accent); }
.btn-primary:hover { box-shadow: 0 16px 40px -10px var(--accent); }
.btn-ghost { background: var(--surface); border-color: var(--border-strong); color: var(--text); }
.btn-ghost:hover { background: var(--surface-2); }
.btn-sm { height: 40px; padding: 0 16px; font-size: 14.5px; border-radius: 11px; }
.btn[disabled] { opacity: .45; pointer-events: none; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 64px; position: relative; }
@media (min-width: 960px) { .hero { padding: 104px 0 96px; } }
.hero-grid { display: grid; gap: 48px; align-items: center; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: 1.05fr .95fr; } }
.hero h1 .line { display: block; }
.hero .lead { margin: 22px 0 32px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 28px; margin-top: 40px; }
.hero-stats div { font-size: 14px; color: var(--text-3); }
.hero-stats strong { display: block; font-family: var(--font-display); font-size: 30px; color: var(--text); letter-spacing: -.02em; }

/* Terminal */
.terminal {
  background: #110f17; border: 1px solid rgba(255,255,255,.12); border-radius: 18px; box-shadow: var(--shadow), 0 0 0 1px rgba(232,130,95,.08), 0 30px 120px -40px rgba(232,130,95,.45);
  overflow: hidden; color: #e9e5f0; font-family: var(--font-mono); font-size: 14px; transform: perspective(1400px) rotateY(-6deg) rotateX(3deg);
  transition: transform .6s ease;
}
.terminal:hover { transform: perspective(1400px) rotateY(0) rotateX(0); }
@media (max-width: 959px) { .terminal { transform: none; } }
.term-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; background: rgba(255,255,255,.04); border-bottom: 1px solid rgba(255,255,255,.08); }
.term-bar i { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; }
.term-bar i:nth-child(2) { background: #febc2e; } .term-bar i:nth-child(3) { background: #28c840; }
.term-bar span { margin-left: 10px; font-size: 12px; color: #8f899c; }
.term-body { padding: 20px; min-height: 340px; line-height: 1.7; white-space: pre-wrap; word-break: break-word; }
/* Hero on phones: tighter rhythm, full-width buttons, compact terminal */
@media (max-width: 719px) {
  .hero { padding: 36px 0 48px; }
  .hero-grid { gap: 36px; }
  .hero h1 { font-size: clamp(40px, 11.2vw, 52px); line-height: 1.02; letter-spacing: -.035em; margin-bottom: 0; }
  .hero .lead { font-size: 17px; line-height: 1.55; margin: 18px 0 26px; }
  .hero .btn-row { flex-direction: column; gap: 10px; }
  .hero .btn-row .btn { width: 100%; height: 54px; font-size: 16.5px; }
  .gridlines { background-size: 40px 40px; opacity: .7; }
  .terminal { font-size: 12.5px; border-radius: 16px; box-shadow: 0 18px 40px -22px rgba(17,15,23,.55), 0 0 0 1px rgba(232,130,95,.1); }
  .term-bar { padding: 10px 14px; }
  .term-bar i { width: 10px; height: 10px; }
  .term-body { padding: 16px 16px 18px; min-height: 318px; line-height: 1.6; }
}
.term-body .p { color: #f5b36b; } .term-body .c { color: #8f899c; } .term-body .g { color: #6ee7a8; } .term-body .a { color: #e8825f; } .term-body .l { color: #b69cff; }
.cursor { display: inline-block; width: 8px; height: 1.1em; vertical-align: -3px; background: #e8825f; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 20px; }
@media (min-width: 720px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } .grid-4 { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 640px) and (max-width: 999px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
.card {
  position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; transition: transform .3s ease, border-color .3s, background .3s; overflow: hidden;
}
a.card { text-decoration: none; display: block; }
a.card:hover, .card.hoverable:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--surface-2); }
.card::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0; transition: opacity .3s;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 0%), color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%);
}
.card:hover::after { opacity: 1; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--text-2); margin: 0; }
.card .icon { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; font-size: 24px; margin-bottom: 18px; background: var(--surface-2); border: 1px solid var(--border); }
.tag { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; font-weight: 600; padding: 4px 10px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--border); color: var(--text-2); }
.tag.hot { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.section-head { max-width: 760px; margin-bottom: 44px; }
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }
.section-head.center .lead { margin-left: auto; margin-right: auto; }

/* ---------- Journey (levels) ---------- */
.journey { position: relative; display: grid; gap: 20px; }
@media (min-width: 900px) { .journey { grid-template-columns: repeat(5, 1fr); gap: 14px; } }
.journey::before {
  content: ""; position: absolute; left: 27px; top: 10px; bottom: 10px; width: 2px; background: linear-gradient(var(--accent), var(--accent-3), var(--accent-4));
  opacity: .5;
}
@media (min-width: 900px) { .journey::before { left: 6%; right: 6%; top: 27px; bottom: auto; width: auto; height: 2px; background: linear-gradient(90deg, var(--accent), var(--accent-3), var(--accent-4)); } }
.stage { position: relative; padding-left: 76px; text-decoration: none; display: block; }
@media (min-width: 900px) { .stage { padding-left: 0; padding-top: 76px; text-align: center; } }
.stage .node {
  position: absolute; left: 0; top: 0; width: 56px; height: 56px; border-radius: 18px; display: grid; place-items: center; font-size: 24px;
  background: var(--bg-2); border: 1px solid var(--border-strong); box-shadow: 0 0 0 6px var(--bg); transition: transform .3s;
}
@media (min-width: 900px) { .stage .node { left: 50%; transform: translateX(-50%); } }
.stage:hover .node { transform: scale(1.08) rotate(-4deg); }
@media (min-width: 900px) { .stage:hover .node { transform: translateX(-50%) scale(1.08) rotate(-4deg); } }
.stage .lvl { font-family: var(--font-mono); font-size: 12px; color: var(--accent-2); letter-spacing: .08em; text-transform: uppercase; }
.stage h3 { font-size: 20px; margin: 4px 0 6px; }
.stage p { font-size: 14.5px; color: var(--text-2); margin: 0; }
.stage .meter { height: 4px; border-radius: 4px; background: var(--surface-2); margin-top: 12px; overflow: hidden; }
.stage .meter i { display: block; height: 100%; width: 0; background: var(--grad); transition: width 1s ease; }

/* ---------- Cert cards ---------- */
.cert {
  padding: 36px; border-radius: 24px; position: relative; overflow: hidden; border: 1px solid var(--border-strong);
  background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 14%, transparent), transparent 55%), var(--surface);
}
.cert.alt { background: linear-gradient(160deg, color-mix(in srgb, var(--accent-3) 16%, transparent), transparent 55%), var(--surface); }
.cert h3 { font-size: 28px; }
.cert ul { list-style: none; padding: 0; margin: 20px 0 28px; display: grid; gap: 10px; }
.cert li { display: flex; gap: 10px; color: var(--text-2); font-size: 15.5px; }
.cert li::before { content: "✦"; color: var(--accent-2); }
.cert .badge { position: absolute; right: -30px; top: -30px; width: 170px; height: 170px; opacity: .14; }
.domain-bars { display: grid; gap: 10px; margin: 18px 0; }
.domain-bar { display: grid; grid-template-columns: 1fr auto; gap: 4px 10px; font-size: 14px; color: var(--text-2); }
.domain-bar .track { grid-column: 1 / -1; height: 6px; border-radius: 6px; background: var(--surface-2); overflow: hidden; }
.domain-bar .track i { display: block; height: 100%; background: var(--grad); border-radius: 6px; }

/* ---------- Lesson pages ---------- */
.crumbs { font-size: 14px; color: var(--text-3); margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.crumbs a { color: var(--text-2); text-decoration: none; }
.crumbs a:hover { color: var(--text); }
.lesson-head { padding: 28px 0 32px; border-bottom: 1px solid var(--border); margin-bottom: 36px; }
.lesson-head h1 { font-size: clamp(36px, 5.6vw, 60px); }
.lesson-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.lesson-layout { display: grid; gap: 40px; }
@media (min-width: 1040px) { .lesson-layout { grid-template-columns: minmax(0, 1fr) 280px; } }
.prose { max-width: 740px; min-width: 0; }
.prose h2 { font-size: clamp(26px, 3.2vw, 34px); margin-top: 1.8em; scroll-margin-top: 90px; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin: .35em 0; }
.prose li::marker { color: var(--accent); }
.prose a { color: var(--accent-2); }
.tldr {
  border-radius: var(--radius); padding: 22px 24px; margin-bottom: 8px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 12%, transparent), color-mix(in srgb, var(--accent-3) 10%, transparent));
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
}
.tldr strong { font-family: var(--font-mono); font-size: 12.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-2); display: block; margin-bottom: 6px; }
.tldr p { margin: 0; font-size: 18px; }
.callout { border-radius: 14px; padding: 16px 18px 16px 52px; margin: 22px 0; position: relative; background: var(--surface); border: 1px solid var(--border); }
.callout::before { position: absolute; left: 16px; top: 15px; font-size: 20px; }
.callout.tip::before { content: "💡"; } .callout.warn::before { content: "⚠️"; } .callout.analogy::before { content: "🧠"; }
.callout.tip { border-color: color-mix(in srgb, var(--accent-4) 35%, transparent); }
.callout.warn { border-color: color-mix(in srgb, var(--accent-2) 40%, transparent); }
.callout.analogy { border-color: color-mix(in srgb, var(--accent-3) 40%, transparent); }
.callout p:last-child { margin: 0; }
.toc { position: sticky; top: 92px; align-self: start; display: none; }
@media (min-width: 1040px) { .toc { display: block; } }
.toc .card { padding: 20px; }
.toc h4 { font-size: 13px; font-family: var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--text-3); }
.toc ol { list-style: none; padding: 0; margin: 0; display: grid; gap: 4px; }
.toc a { display: block; text-decoration: none; color: var(--text-2); font-size: 14.5px; padding: 6px 10px; border-radius: 8px; border-left: 2px solid transparent; }
.toc a:hover, .toc a.active { color: var(--text); background: var(--surface-2); border-left-color: var(--accent); }
.faq { display: grid; gap: 10px; }
.faq details { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 0 20px; }
.faq summary { cursor: pointer; padding: 18px 0; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 22px; line-height: 1; color: var(--accent); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--text-2); padding-bottom: 18px; margin: 0; }
.pager { display: grid; gap: 14px; margin-top: 56px; padding-top: 32px; border-top: 1px solid var(--border); }
@media (min-width: 720px) { .pager { grid-template-columns: 1fr 1fr; } }
.pager .pg {
  display: flex; align-items: center; gap: 16px; padding: 18px 20px; border-radius: var(--radius);
  border: 1px solid var(--border-strong); background: var(--surface-2); color: var(--text); text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.pg:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--accent); }
.pg-text { display: flex; flex-direction: column; gap: 4px; min-width: 0; flex: 1; }
.pg .dir { font-size: 12px; font-weight: 600; color: var(--text-3); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: .1em; }
.pager .pg-title { color: inherit; font-family: var(--font-display); font-size: 18px; font-weight: 600; line-height: 1.3; }
.pg-arrow {
  flex-shrink: 0; display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid var(--border-strong); font-size: 20px; line-height: 1; transition: transform .2s ease;
}
.pg.prev:hover .pg-arrow { transform: translateX(-3px); }
.pg.next:hover .pg-arrow { transform: translateX(3px); }
.pager .pg.next { text-align: right; background: var(--grad); border-color: transparent; color: #1a0f0a; box-shadow: 0 12px 30px -14px var(--accent); }
.pg.next .dir { color: rgba(26, 15, 10, .7); }
.pg.next .pg-arrow { background: #1a0f0a; color: #fff; border-color: transparent; }
.pg.next:hover { box-shadow: 0 18px 40px -14px var(--accent); }
@media (max-width: 719px) { .pager .pg.next { order: -1; text-align: left; } .pager > span:empty { display: none; } }
.complete-bar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-top: 40px;
  padding: 22px 24px; border-radius: var(--radius); background: var(--surface); border: 1px dashed var(--border-strong);
}

/* ---------- Quiz ---------- */
.quiz { display: grid; gap: 18px; }
.q-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
@media (min-width: 720px) { .q-card { padding: 32px; } }
.q-card .q-text { font-size: 18.5px; font-weight: 600; line-height: 1.5; margin-bottom: 18px; }
.q-meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 14px; }
.options { display: grid; gap: 10px; }
.opt {
  display: flex; gap: 14px; align-items: flex-start; width: 100%; text-align: left; font: inherit; font-size: 16px; color: var(--text);
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: 14px; padding: 14px 16px; cursor: pointer;
  transition: border-color .2s, background .2s, transform .15s;
}
.opt:hover:not([disabled]) { border-color: var(--accent); background: var(--surface-2); transform: translateX(3px); }
.opt .key {
  flex: none; width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; font: 700 13px var(--font-mono);
  background: var(--surface-2); border: 1px solid var(--border-strong);
}
.opt.selected { border-color: var(--accent-3); background: color-mix(in srgb, var(--accent-3) 12%, transparent); }
.opt.selected .key { background: var(--accent-3); color: #120e1f; border-color: transparent; }
.opt.correct { border-color: var(--good); background: color-mix(in srgb, var(--good) 12%, transparent); }
.opt.correct .key { background: var(--good); color: #06210f; border-color: transparent; }
.opt.wrong { border-color: var(--bad); background: color-mix(in srgb, var(--bad) 12%, transparent); }
.opt.wrong .key { background: var(--bad); color: #2a0606; border-color: transparent; }
.opt[disabled] { cursor: default; }
.explain { margin-top: 16px; padding: 16px 18px; border-radius: 14px; background: var(--surface-2); border-left: 3px solid var(--accent); color: var(--text-2); font-size: 15.5px; }
.explain strong { color: var(--text); }
.quiz-shell { display: grid; gap: 24px; }
@media (min-width: 1000px) { .quiz-shell.exam { grid-template-columns: minmax(0, 1fr) 280px; } }
.quiz-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.progress-track { height: 8px; border-radius: 8px; background: var(--surface-2); overflow: hidden; flex: 1 1 200px; }
.progress-track i { display: block; height: 100%; width: 0; background: var(--grad); transition: width .4s ease; }
.timer { font: 700 18px var(--font-mono); padding: 8px 14px; border-radius: 12px; background: var(--surface); border: 1px solid var(--border); }
.timer.low { color: var(--bad); border-color: var(--bad); animation: pulse 1s infinite; }
@keyframes pulse { 50% { opacity: .6; } }
.qnav { display: grid; grid-template-columns: repeat(auto-fill, minmax(38px, 1fr)); gap: 6px; }
.qnav button { height: 38px; border-radius: 9px; font: 600 13px var(--font-mono); cursor: pointer; background: var(--surface); color: var(--text-2); border: 1px solid var(--border); }
.qnav button.answered { background: color-mix(in srgb, var(--accent-3) 20%, transparent); color: var(--text); border-color: transparent; }
.qnav button.flagged { box-shadow: inset 0 -3px 0 var(--accent-2); }
.qnav button.current { outline: 2px solid var(--accent); outline-offset: 1px; }
.setup-grid { display: grid; gap: 16px; }
@media (min-width: 760px) { .setup-grid { grid-template-columns: repeat(3, 1fr); } }
.choice { cursor: pointer; text-align: left; font: inherit; color: inherit; width: 100%; }
.choice.on { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, var(--surface)); }
.choice { position: relative; }
.choice.on::before { content: "✓"; position: absolute; top: 14px; right: 14px; z-index: 1; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--accent); color: #fff; font: 700 14px/1 var(--font); }
@media (max-width: 600px) {
  .setup-step { padding: 18px 14px; }
  .setup-step .choice { padding: 16px 18px; }
  .setup-step .choice .icon { width: 40px; height: 40px; font-size: 20px; margin-bottom: 10px; }
  .setup-step .choice h3 { font-size: 18px; margin-top: 10px !important; margin-bottom: 4px; padding-right: 30px; }
  .setup-step .choice p { font-size: 14.5px; line-height: 1.5; margin: 0; }
  #step-track .choice .tag { font-size: 11.5px; }
}
.setup-step { scroll-margin-top: 84px; }
.setup-start {
  position: sticky; bottom: 12px; z-index: 5; scroll-margin-top: 84px; scroll-margin-bottom: 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  padding: 12px 12px 12px 18px; border-radius: 18px; border: 1px solid var(--border-strong);
  background: color-mix(in srgb, var(--surface) 88%, transparent); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 18px 40px -20px rgba(0,0,0,.45);
}
.setup-summary { display: grid; line-height: 1.3; min-width: 0; }
.setup-summary strong { font-family: var(--font-display); font-size: 16px; }
.setup-summary span { font-size: 13.5px; color: var(--text-3); }
@media (max-width: 520px) { .setup-start { padding: 12px; } .setup-start .btn { width: 100%; } }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font: 600 14px var(--font); padding: 9px 14px; border-radius: 999px; cursor: pointer; background: var(--surface); color: var(--text-2); border: 1px solid var(--border-strong); }
.chip.on { background: var(--text); color: var(--bg); border-color: var(--text); }
.score-ring { width: 200px; height: 200px; margin: 0 auto 8px; position: relative; }
.score-ring svg { transform: rotate(-90deg); }
.score-ring .val { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; font-family: var(--font-display); }
.score-ring .val b { font-size: 46px; display: block; letter-spacing: -.03em; line-height: 1; }
.score-ring .val span { font-size: 13px; color: var(--text-3); }
.verdict { text-align: center; font-family: var(--font-display); font-size: 26px; font-weight: 700; margin-bottom: 4px; }
.verdict.pass { color: var(--good); } .verdict.fail { color: var(--accent-2); }
.review-list { display: grid; gap: 14px; }

/* ---------- Flashcards ---------- */
.flash { perspective: 1400px; min-height: 280px; cursor: pointer; }
.flash-inner { position: relative; min-height: 280px; transition: transform .6s cubic-bezier(.2,.8,.2,1); transform-style: preserve-3d; }
.flash.flipped .flash-inner { transform: rotateY(180deg); }
.flash-face { position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden; display: grid; place-items: center; text-align: center; padding: 32px; border-radius: 22px; border: 1px solid var(--border-strong); background: var(--surface-2); }
.flash-face.back { transform: rotateY(180deg); background: linear-gradient(140deg, color-mix(in srgb, var(--accent) 14%, var(--bg-2)), color-mix(in srgb, var(--accent-3) 12%, var(--bg-2))); }
.flash-face h3 { font-size: clamp(24px, 3.5vw, 34px); margin: 0; }
.flash-face p { font-size: 17px; color: var(--text); margin: 0; }

/* ---------- Glossary ---------- */
.gloss-search { width: 100%; height: 56px; padding: 0 20px; border-radius: 16px; font: 500 17px var(--font); color: var(--text); background: var(--surface); border: 1px solid var(--border-strong); }
.gloss-search:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 20%, transparent); }
.gloss { display: grid; gap: 14px; margin-top: 24px; }
@media (min-width: 760px) { .gloss { grid-template-columns: 1fr 1fr; } }
.gloss dt { font-family: var(--font-display); font-weight: 700; font-size: 19px; margin-bottom: 4px; }
.gloss dd { margin: 0; color: var(--text-2); font-size: 15.5px; }

/* ---------- Stat tiles / progress ---------- */
.stat { padding: 24px; }
.stat b { display: block; font-family: var(--font-display); font-size: 40px; letter-spacing: -.03em; line-height: 1.1; }
.stat span { color: var(--text-3); font-size: 14px; }
.history { width: 100%; border-collapse: collapse; font-size: 15px; }
.history th, .history td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--border); }
.history th { color: var(--text-3); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; }
.table-wrap { overflow-x: auto; }

/* ---------- CTA band / footer ---------- */
.cta-band {
  border-radius: 28px; padding: 56px 28px; text-align: center; position: relative; overflow: hidden; border: 1px solid var(--border-strong);
  background: radial-gradient(800px 300px at 50% 0%, color-mix(in srgb, var(--accent) 22%, transparent), transparent), var(--surface);
}
.cta-band .btn-row { justify-content: center; }
.site-footer { border-top: 1px solid var(--border); padding: 56px 0 104px; margin-top: 40px; color: var(--text-3); font-size: 14.5px; }
.foot-grid { display: grid; gap: 32px; }
@media (min-width: 800px) { .foot-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; } }
.site-footer h4 { font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--text-2); margin-bottom: 14px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer a { text-decoration: none; color: var(--text-3); }
.site-footer a:hover { color: var(--text); }
.disclaimer { margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--border); font-size: 13px; }

/* ---------- Marquee ---------- */
.marquee { overflow: hidden; border-block: 1px solid var(--border); padding: 18px 0; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee-track { display: flex; gap: 40px; width: max-content; animation: scroll 40s linear infinite; font-family: var(--font-mono); font-size: 15px; color: var(--text-3); }
.marquee-track span { white-space: nowrap; } .marquee-track b { color: var(--accent-2); font-weight: 500; }
@keyframes scroll { to { transform: translateX(-50%); } }

/* ---------- Reveal + toasts ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }
.toast {
  position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom, 0px)); transform: translate(-50%, 120px); z-index: 90; padding: 14px 20px; border-radius: 14px;
  background: var(--text); color: var(--bg); font-weight: 600; box-shadow: var(--shadow); transition: transform .4s cubic-bezier(.2,.9,.3,1.3); max-width: calc(100vw - 32px);
}
.toast.show { transform: translate(-50%, 0); }
#confetti { position: fixed; inset: 0; pointer-events: none; z-index: 95; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}
@media print { .site-header, .aurora, .grain, .site-footer, .toc { display: none !important; } body { background: #fff; color: #000; } }

/* ---------- Memes ---------- */
.meme-card { display: flex; flex-direction: column; gap: 16px; }
.meme-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.meme-head h3 { margin: 0; font-size: 19px; }
.meme { border-radius: 14px; overflow: hidden; background: var(--bg-2); border: 1px solid var(--border-strong); font-weight: 600; font-size: 15.5px; line-height: 1.45; flex: 1; }
.meme p { margin: 0; }
.meme-drake .mrow, .meme-brain .mrow { display: grid; grid-template-columns: 76px 1fr; align-items: center; min-height: 92px; }
.meme-drake .mrow + .mrow, .meme-brain .mrow + .mrow { border-top: 1px solid var(--border-strong); }
.meme-drake .me { font-size: 34px; text-align: center; align-self: stretch; display: grid; place-items: center; }
.meme-drake .no .me { background: color-mix(in srgb, var(--bad) 18%, transparent); }
.meme-drake .yes .me { background: color-mix(in srgb, var(--good) 18%, transparent); }
.meme-drake p, .meme-brain p { padding: 14px 16px; }
.meme-drake .no p { color: var(--text-2); text-decoration: line-through; text-decoration-color: color-mix(in srgb, var(--bad) 70%, transparent); }
.meme-brain .mrow { grid-template-columns: 1fr 76px; min-height: 64px; }
.meme-brain .me { text-align: center; font-size: 26px; align-self: stretch; display: grid; place-items: center; }
.meme-brain .s1 .me { background: rgba(255,255,255,.02); font-size: 20px; }
.meme-brain .s2 .me { background: color-mix(in srgb, var(--accent-2) 14%, transparent); }
.meme-brain .s3 .me { background: color-mix(in srgb, var(--accent) 22%, transparent); font-size: 30px; }
.meme-brain .s4 .me { background: radial-gradient(circle, color-mix(in srgb, var(--accent-3) 60%, transparent), color-mix(in srgb, var(--accent-3) 15%, transparent)); font-size: 34px; text-shadow: 0 0 18px var(--accent-3); }
.meme-buttons { padding: 22px 18px 18px; text-align: center; }
.meme-buttons .btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.meme-buttons .btns span { background: linear-gradient(#ff6b6b, #c92a2a); color: #fff; padding: 12px 16px; border-radius: 999px; box-shadow: 0 5px 0 #7a1414, 0 8px 20px -6px #c92a2a; font-family: var(--font-mono); font-size: 14px; transform: rotate(-3deg); }
.meme-buttons .btns span + span { transform: rotate(3deg); }
.meme-buttons .sweat { font-size: 50px; margin: 18px 0 8px; animation: wobble 2.4s ease-in-out infinite; }
@keyframes wobble { 50% { transform: translateX(4px) rotate(4deg); } }
.meme-buttons .cap { color: var(--text-2); font-size: 14.5px; }
.meme-fine { position: relative; background: linear-gradient(180deg, #2a1208, #4a1d0b 60%, #6b2a0c); color: #fde7d6; }
.meme-fine .cap { padding: 14px 16px 0; font-size: 14.5px; }
.meme-fine .scene { position: relative; height: 130px; }
.meme-fine .flames { position: absolute; left: 0; right: 0; bottom: 6px; text-align: center; font-size: 30px; letter-spacing: 4px; animation: flicker 1.2s ease-in-out infinite alternate; }
@keyframes flicker { to { transform: translateY(-3px) scaleY(1.06); opacity: .85; } }
.meme-fine .dog { position: absolute; left: 22%; bottom: 26px; font-size: 40px; }
.meme-fine .bubble { position: absolute; right: 14px; top: 10px; background: #fff; color: #1d1a16; padding: 6px 12px; border-radius: 14px; font-size: 14px; max-width: 55%; }
.meme-expect { display: grid; grid-template-columns: 1fr 1fr; }
.meme-expect > div { padding: 16px; }
.meme-expect > div + div { border-left: 1px solid var(--border-strong); background: color-mix(in srgb, var(--accent) 8%, transparent); }
.meme-expect b { display: block; font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-2); margin-bottom: 8px; }
.meme-expect .cap { grid-column: 1 / -1; padding: 12px 16px; border-top: 1px solid var(--border-strong); color: var(--text-2); font-size: 14.5px; }
.meme-nobody { padding: 20px; display: grid; gap: 10px; }
.meme-nobody .punch { font-family: var(--font-display); font-size: 22px; line-height: 1.25; }
.meme-foot { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; font-size: 15px; }
.meme-foot a { color: var(--accent-2); font-weight: 600; text-decoration: none; }
.meme-foot a:hover { text-decoration: underline; }

/* Quiz reactions and verdict memes */
.reaction { display: inline-block; margin-left: 8px; font-family: var(--font-mono); font-size: 13px; font-weight: 600; padding: 3px 10px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border-strong); color: var(--text); animation: pop .45s cubic-bezier(.2,1.6,.4,1); vertical-align: 1px; }
@keyframes pop { from { transform: scale(.4); opacity: 0; } }
.verdict-meme { font-size: 15px; color: var(--text-2); margin: 6px 0 10px; }
.verdict-meme span { font-size: 26px; vertical-align: -4px; margin-right: 6px; }

/* Konami easter egg */
html.party .aurora span { animation: drift 4s ease-in-out infinite alternate, hue 3s linear infinite; opacity: .4; }
html.party .grad-text, html.party .brand b { animation: hue 2s linear infinite; }
@keyframes hue { to { filter: hue-rotate(360deg); } }

/* ---------- Footer: made-by, 88x31 badges, hit counter ---------- */
.made-by { font-size: 14px; }
.made-by a { color: var(--accent-2); text-decoration: none; font-weight: 600; }
.made-by a:hover { text-decoration: underline; }
.badges88 { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 32px; }
.b88 {
  width: 88px; height: 31px; display: grid; place-items: center; align-content: center; text-align: center; line-height: 1.05;
  font: 700 8px/1.15 var(--font-mono); letter-spacing: .02em; color: #fff; border: 2px outset rgba(255,255,255,.55); image-rendering: pixelated;
}
.b88 b { display: block; font-size: 7px; opacity: .85; }
.b-a { background: linear-gradient(90deg, #c95f3c, #e8825f); }
.b-b { background: #000080; color: #ffff00; }
.b-c { background: #2d6a2d; }
.b-d { background: #c0c0c0; color: #000; border-color: #fff #808080 #808080 #fff; }
.b-e { background: linear-gradient(90deg, #5a2d91, #b69cff); }
.hitcounter { font: 600 12px var(--font-mono); color: var(--text-3); margin-left: 6px; }
.hitcounter [data-hits] { display: inline-block; background: #000; color: #6ef08a; padding: 2px 6px; margin: 0 4px; letter-spacing: .2em; border: 1px solid #333; border-radius: 3px; }

/* ---------- Vinyl player ---------- */
.vinyl {
  position: fixed; left: 16px; bottom: 16px; z-index: 60; display: flex; align-items: center; gap: 10px; padding: 6px 14px 6px 6px;
  border-radius: 999px; border: 1px solid var(--border-strong); background: color-mix(in srgb, var(--bg-2) 85%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); color: var(--text); font: 600 13px var(--font); cursor: pointer; box-shadow: var(--shadow);
}
.vinyl .disc {
  width: 38px; height: 38px; border-radius: 50%; flex: none;
  background: radial-gradient(circle, var(--accent) 0 17%, #111 18% 22%, transparent 23%),
    repeating-radial-gradient(circle, #151515 0 2px, #222 2px 3px);
  box-shadow: inset 0 0 0 1px #333, 0 2px 8px rgba(0,0,0,.4);
}
.vinyl.on .disc { animation: spin 1.8s linear infinite; }
.vinyl-label { max-width: 190px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
@keyframes spin { to { transform: rotate(360deg); } }
/* Phones: no floating record covering content; the footer button controls the music instead. */
.vinyl-footer { display: none; padding: 0; border: 0; background: none; font: inherit; color: var(--text-3); cursor: pointer; text-align: left; }
.vinyl-footer:hover { color: var(--text); }
@media (max-width: 600px) { .vinyl { display: none; } .vinyl-footer { display: inline; } }

/* ---------- Mixtape ---------- */
.mixtape { display: grid; gap: 28px; align-items: center; }
@media (min-width: 900px) { .mixtape { grid-template-columns: 420px 1fr; } }
.cassette {
  position: relative; width: 100%; max-width: 420px; aspect-ratio: 1.6; border-radius: 16px; padding: 16px 18px;
  background: linear-gradient(160deg, #2b2733, #19171f); border: 1px solid rgba(255,255,255,.12);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.08); transform: rotate(-2deg); transition: transform .4s;
}
.mixtape:hover .cassette { transform: rotate(0); }
.cassette-label {
  height: 64%; border-radius: 8px; padding: 10px 14px; position: relative;
  background: linear-gradient(180deg, #f6efe2 0 30%, #e8825f 30% 38%, #f6efe2 38% 46%, #f5b36b 46% 54%, #f6efe2 54%);
}
.cassette-label .hand { font: 700 italic 17px var(--font-display); color: #2a1f16; transform: rotate(-1.5deg); display: inline-block; }
.cassette-label .side { position: absolute; right: 12px; top: 8px; width: 26px; height: 26px; border-radius: 50%; background: #1d1a16; color: #f6efe2; font: 700 14px var(--font-display); display: grid; place-items: center; }
.cassette-window {
  position: absolute; left: 22%; right: 22%; top: 34%; height: 24%; border-radius: 30px; background: rgba(20,18,26,.92);
  display: flex; align-items: center; justify-content: space-between; padding: 0 10%; border: 2px solid #3a3542;
}
.cassette-window .reel {
  width: 30%; aspect-ratio: 1; border-radius: 50%; background: repeating-conic-gradient(#f6efe2 0 12deg, #3a3542 12deg 60deg);
  border: 3px solid #5b3a24; animation: spin 3s linear infinite; position: relative; z-index: 1;
}
.cassette-window .tape { position: absolute; left: 25%; right: 25%; height: 40%; background: #4a2e1d; border-radius: 4px; }
.cassette-foot { position: absolute; left: 25%; right: 25%; bottom: 8px; height: 16%; border-radius: 6px 6px 0 0; background: #121016; display: flex; justify-content: space-around; align-items: center; }
.cassette-foot i { width: 7px; height: 7px; border-radius: 50%; background: #2f2b36; }
.jcard { display: grid; gap: 20px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
@media (min-width: 640px) { .jcard { grid-template-columns: 1fr 1fr; } }
.jcard h3 { font-family: var(--font-mono); font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--accent-2); }
.jcard ol { margin: 0; padding-left: 1.4em; display: grid; gap: 6px; font-size: 15px; }
.jcard li::marker { color: var(--text-3); font-family: var(--font-mono); font-size: 13px; }
.jcard li { display: list-item; }
.jcard li a { text-decoration: none; color: var(--text); }
.jcard li a:hover { color: var(--accent-2); }
.jcard li span { float: right; font-family: var(--font-mono); font-size: 12.5px; color: var(--text-3); margin-left: 8px; }

/* ---------- 404: GAME OVER ---------- */
.gameover { font-family: "Press Start 2P", var(--font-mono); font-size: clamp(26px, 6vw, 54px); color: #f87171; text-shadow: 4px 4px 0 #5a1010; letter-spacing: .05em; margin-bottom: 8px; }
.continue { font-family: var(--font-mono); font-weight: 700; color: var(--accent-2); animation: blink 1s steps(1) infinite; margin-bottom: 40px; }

/* ---------- Arcade ---------- */
.arcade-tabs { margin-bottom: 18px; }
.cabinet { max-width: 560px; margin: 0 auto; }
.crt {
  position: relative; border-radius: 22px; padding: 18px; overflow: hidden;
  background: linear-gradient(180deg, #2a2633, #15131b); border: 1px solid rgba(255,255,255,.14);
  box-shadow: var(--shadow), 0 0 60px -10px rgba(110,240,138,.25), inset 0 0 0 6px #0c0b10;
}
.crt canvas, .crt .blitz { display: block; width: 100%; border-radius: 12px; background: #05060a; }
.crt canvas { height: auto; aspect-ratio: 480 / 560; touch-action: none; }
.crt::after {
  content: ""; position: absolute; inset: 18px; border-radius: 12px; pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(0,0,0,.22) 0 1px, transparent 1px 3px), radial-gradient(ellipse at center, transparent 60%, rgba(0,0,0,.45));
}
.pad { display: flex; justify-content: center; gap: 12px; margin-top: 14px; }
.pad button {
  font: 12px "Press Start 2P", var(--font-mono); color: #fff; min-width: 64px; height: 56px; border-radius: 50%; cursor: pointer; touch-action: none;
  background: radial-gradient(circle at 35% 30%, #ff8a8a, #c92a2a); border: 0; box-shadow: 0 5px 0 #7a1414; user-select: none; -webkit-user-select: none;
}
.pad button[data-pad="fire"] { border-radius: 28px; min-width: 110px; background: radial-gradient(circle at 35% 30%, #ffd88a, #e8825f); color: #1a0f0a; box-shadow: 0 5px 0 #8a4422; }
.pad button:active { transform: translateY(4px); box-shadow: 0 1px 0 #7a1414; }
@media (hover: hover) and (pointer: fine) { .pad { display: none; } }
.howto { text-align: center; font-size: 14px; color: var(--text-3); margin-top: 14px; }
.hiscores h3 { font: 11px/1.6 "Press Start 2P", var(--font-mono); color: var(--accent-2); }
.hiscores ol { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; font: 12px "Press Start 2P", var(--font-mono); }
.hiscores li { display: grid; grid-template-columns: 28px 1fr auto; gap: 8px; color: var(--text-2); }
.hiscores li:first-child { color: #6ef08a; }
.hiscores .hs-scope { margin: -6px 0 12px; font-size: 12.5px; color: var(--text-3); }
.hiscores li.hs-empty { display: block; font: 10px/1.8 "Press Start 2P", var(--font-mono); color: var(--text-3); }
.initials {
  position: absolute; inset: 18px; border-radius: 12px; z-index: 5; display: grid; place-content: center; gap: 14px; text-align: center;
  background: rgba(5,6,10,.92); color: #fff; font: 12px/1.6 "Press Start 2P", var(--font-mono);
}
.initials p { margin: 0; color: #f5b36b; }
.initials .big { font-size: 28px; color: #6ef08a; }
.initials label { display: grid; gap: 10px; }
.initials input { width: 140px; margin: 0 auto; text-align: center; font: 28px "Press Start 2P", monospace; letter-spacing: .2em; padding: 8px; background: #000; color: #6ef08a; border: 2px solid #6ef08a; border-radius: 6px; }
.initials button { font: 12px "Press Start 2P", monospace; padding: 12px 20px; background: #e8825f; color: #1a0f0a; border: 0; border-radius: 8px; cursor: pointer; }
.blitz { min-height: 520px; padding: 22px; color: #e9f5ec; font-family: var(--font); display: flex; flex-direction: column; }
.blitz-title { margin: auto; text-align: center; font-family: "Press Start 2P", var(--font-mono); display: grid; gap: 18px; }
.blitz-title h2 { font-family: inherit; font-size: 34px; line-height: 1.3; color: #6ef08a; text-shadow: 3px 3px 0 #0d4a1e; margin: 0; }
.blitz-title .big { font-size: 34px; color: #f5b36b; margin: 0; }
.blitz-title p { margin: 0; font-size: 11px; line-height: 1.8; }
.blitz-title .dim, .blitz .dim { color: #8a857d; font-size: 10px; }
.blink { animation: blink 1s steps(1) infinite; color: #f5b36b; }
.blitz-pick { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.blitz-pick button, .blitz .start { font: 10px "Press Start 2P", monospace; padding: 10px 12px; border-radius: 6px; cursor: pointer; background: transparent; color: #e9f5ec; border: 2px solid #3a4a3e; }
.blitz-pick button.on { border-color: #6ef08a; color: #6ef08a; }
.blitz .start { background: #e8825f; color: #1a0f0a; border: 0; padding: 14px 20px; font-size: 12px; box-shadow: 0 4px 0 #8a4422; }
.blitz-hud { display: flex; justify-content: space-between; align-items: center; font: 10px "Press Start 2P", monospace; color: #8a857d; }
.blitz-hud b { color: #e9f5ec; font-weight: 400; }
.blitz-hud .combo { color: #f5b36b; font-size: 16px; }
.blitz-hud .combo.pop { animation: pop .35s cubic-bezier(.2,1.6,.4,1); }
.blitz-bar { height: 6px; background: #1b1f1c; border-radius: 6px; margin: 12px 0 18px; overflow: hidden; }
.blitz-bar i { display: block; height: 100%; background: #6ef08a; transition: width .1s linear; }
.blitz-bar i.low { background: #f87171; }
.blitz-q { font-size: 16.5px; font-weight: 600; line-height: 1.5; margin: 0 0 16px; }
.blitz-q code, .blitz-opts code { background: #1b1f1c; border-color: #2c352f; color: #e9f5ec; }
.blitz-opts { display: grid; gap: 8px; margin-top: auto; }
.blitz-opts button { display: flex; gap: 12px; align-items: flex-start; text-align: left; font: 500 15px/1.4 var(--font); color: #e9f5ec; background: #0e1210; border: 1px solid #2c352f; border-radius: 10px; padding: 11px 12px; cursor: pointer; }
.blitz-opts button:hover { border-color: #6ef08a; }
.blitz-opts kbd { font: 10px "Press Start 2P", monospace; color: #6ef08a; padding-top: 3px; }
.blitz-opts button.right { border-color: #4ade80; background: #0f2a17; }
.blitz-opts button.wrong { border-color: #f87171; background: #2a0f0f; }

/* ---------- 1995 mode (Konami code) ---------- */
html.retro body::after {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 200;
  background: repeating-linear-gradient(0deg, rgba(0,0,0,.18) 0 1px, transparent 1px 3px);
}
html.retro h1, html.retro h2, html.retro .brand span { font-family: "Press Start 2P", var(--font-mono); letter-spacing: 0; line-height: 1.35; }
html.retro h1 { font-size: clamp(22px, 4.6vw, 44px); }
html.retro h2 { font-size: clamp(18px, 3vw, 28px); }
html.retro .card, html.retro .btn { border-radius: 0; }
html.retro .btn { box-shadow: 4px 4px 0 var(--text) !important; }

/* ---------- Tenzing promotion ---------- */
.made-by-card {
  position: relative; overflow: hidden; display: flex; flex-direction: column; align-items: flex-start;
  width: 100%; max-width: 360px; margin-top: 22px; padding: 18px 20px 16px 24px; border-radius: 16px; text-decoration: none;
  background: var(--surface); border: 1px solid var(--border);
  box-shadow: 0 1px 2px rgba(0,0,0,.04), 0 12px 28px -20px rgba(0,0,0,.35);
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.made-by-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: #C8F241; }
.made-by-card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, #C8F241 70%, var(--border)); box-shadow: 0 1px 2px rgba(0,0,0,.04), 0 16px 32px -18px rgba(0,0,0,.4); }
.made-by-card .mb-kicker { font-size: 12.5px; color: var(--text-3); }
.made-by-card .tz-lockup { margin-top: 8px; }
.made-by-card .mb-line { font-size: 14px; line-height: 1.5; color: var(--text-2); margin-top: 12px; }
.made-by-card .mb-cta { align-self: stretch; display: flex; justify-content: space-between; margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--border); font-size: 14px; font-weight: 600; color: var(--text); }
.made-by-card .mb-cta span { transition: transform .2s; }
.made-by-card:hover .mb-cta span { transform: translateX(4px); }
.made-by-card + .made-by { margin-top: 14px; }
.tenzing-band {
  display: grid; gap: 28px; align-items: center; padding: 40px 28px; border-radius: 28px; border: 1px solid var(--border-strong);
  background: radial-gradient(600px 260px at 90% 50%, color-mix(in srgb, var(--accent-3) 18%, transparent), transparent), var(--surface);
}
@media (min-width: 900px) { .tenzing-band { grid-template-columns: 1fr 240px; padding: 48px; } }
.tenzing-band .lead { margin-bottom: 26px; }
.tenzing-note { display: flex; gap: 14px; align-items: flex-start; margin-top: 16px; padding: 16px 18px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border); font-size: 15px; color: var(--text-2); }
.tenzing-note p { margin: 0; }
.tenzing-note a { color: var(--accent-2); font-weight: 600; }

/* Tenzing brand lockup (matches tenzing.ie: lime T mark, DM Serif wordmark with a pink full stop) */
.tz-mark { width: 40px; height: 40px; border-radius: 10px; flex: none; }
.tz-lockup { display: flex; align-items: center; gap: 10px; margin-top: 6px; }
.tz-wordmark { display: inline-flex; flex-direction: column; line-height: 1; }
.tz-name { font-family: "DM Serif Display", Georgia, serif; font-size: 24px; color: var(--text); letter-spacing: -0.01em; }
.tz-name::after { content: ""; display: inline-block; width: .19em; height: .19em; margin-left: .05em; border-radius: 50%; background: #FF0099; }
.tz-sub { font: 700 8.5px var(--font); letter-spacing: .42em; text-transform: uppercase; color: #C8F241; margin-top: 4px; }
:root[data-theme="light"] .tz-sub { color: #4E7000; }
@media (prefers-color-scheme: light) { :root:not([data-theme="dark"]) .tz-sub { color: #4E7000; } }
.tenzing-badge {
  display: grid; justify-items: center; gap: 12px; padding: 28px 20px; border-radius: 24px; text-decoration: none; text-align: center;
  background: var(--bg-2); border: 1px solid var(--border-strong); transition: transform .25s, border-color .25s;
}
.tenzing-badge:hover { transform: translateY(-3px) rotate(-1deg); border-color: #C8F241; }
.tenzing-badge img { width: 96px; height: 96px; border-radius: 22px; box-shadow: 0 10px 28px -14px rgba(200, 242, 65, .55); }
.tenzing-badge .tz-name { font-size: 30px; }
.tenzing-badge b { font-size: 14px; font-weight: 600; color: var(--text-2); }
@media (max-width: 899px) {
  .tenzing-badge {
    grid-template-columns: auto 1fr auto; align-items: center; justify-items: start; gap: 14px;
    padding: 14px 18px; border-radius: 18px; text-align: left;
  }
  .tenzing-badge:hover { transform: translateY(-2px); }
  .tenzing-badge img { width: 52px; height: 52px; border-radius: 13px; box-shadow: 0 6px 18px -8px rgba(200, 242, 65, .6); }
  .tenzing-badge .tz-name { font-size: 24px; }
  .tenzing-badge b { justify-self: end; white-space: nowrap; }
}
.tenzing-note .tz-mark { width: 32px; height: 32px; border-radius: 8px; }
.tenzing-badge img, .tz-mark { max-width: none; }
.tz-name { white-space: nowrap; }
@media (max-width: 360px) { .tenzing-badge b { display: none; } .tenzing-badge { grid-template-columns: auto 1fr; } }

/* ---------- Scenario framing and select-TWO questions ---------- */
.scenario-box { margin: -4px 0 18px; padding: 14px 16px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--border); font-size: 14.5px; }
.scenario-box .scenario-label { display: block; font: 600 12px var(--font-mono); color: var(--text-3); margin-bottom: 2px; }
.scenario-box strong { font-family: var(--font-display); font-size: 16px; }
.scenario-box p { margin: 4px 0 0; color: var(--text-2); }
.opt.multi .key { border-radius: 6px; }
.qnav-head { grid-column: 1 / -1; font: 600 11.5px var(--font); color: var(--text-3); margin: 8px 0 2px; }
.qnav-head:first-child { margin-top: 0; }

/* ---------- Teams page steps ---------- */
.steps { list-style: none; counter-reset: step; padding: 0; margin: 0; display: grid; gap: 14px; }
@media (min-width: 900px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.steps li { counter-increment: step; position: relative; padding: 22px 20px 20px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); display: grid; gap: 6px; }
.steps li::before { content: counter(step); width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font: 700 14px var(--font-display); background: #C8F241; color: #101310; margin-bottom: 6px; }
.steps strong { font-family: var(--font-display); font-size: 18px; }
.steps span { color: var(--text-2); font-size: 15px; }
.result-card { display: block; width: 100%; max-width: 640px; height: auto; margin: 18px auto 0; border-radius: 14px; border: 1px solid var(--border-strong); box-shadow: var(--shadow); }

/* ---------- Matching questions: Yes/No and classify ---------- */
.matrix { display: grid; gap: 10px; }
.m-row { display: grid; gap: 10px; padding: 14px 16px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border-strong); }
@media (min-width: 760px) { .m-row { grid-template-columns: 1fr auto; align-items: center; } }
.m-row p { margin: 0; font-size: 15.5px; }
.m-row.ok { border-color: var(--good); background: color-mix(in srgb, var(--good) 8%, transparent); }
.m-row.bad { border-color: var(--bad); background: color-mix(in srgb, var(--bad) 8%, transparent); }
.m-choices { display: flex; flex-wrap: wrap; gap: 6px; }
.m-choice { font: 600 14px var(--font); padding: 8px 14px; border-radius: 10px; cursor: pointer; background: var(--surface-2); color: var(--text); border: 1px solid var(--border-strong); }
.m-choice:hover:not([disabled]) { border-color: var(--accent); }
.m-choice.on { background: var(--accent-3); color: #120e1f; border-color: transparent; }
.m-choice.right { box-shadow: 0 0 0 2px var(--good); }
.m-choice[disabled] { cursor: default; }
.flash-list { text-align: left; margin: 0; padding-left: 1.1em; font-size: 15px; display: grid; gap: 6px; }
.flash-list b { color: var(--accent-2); margin-right: 6px; }

/* ---------- Question of the day ---------- */
.daily { padding: 24px; }
@media (min-width: 720px) { .daily { padding: 32px; } }
.daily-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; }
.daily-head h2 { font-size: clamp(24px, 3vw, 30px); margin: 0; }

/* ---------- Cheat sheet ---------- */
.cheatsheet { display: grid; gap: 18px; }
@media (min-width: 860px) { .cheatsheet { grid-template-columns: 1fr 1fr; } }
.cs-block { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 22px; break-inside: avoid; }
.cs-block h2 { font-size: 20px; margin-bottom: 12px; }
.cs-block ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.cs-block li { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 12px; align-items: baseline; font-size: 14.5px; }
.cs-block li code { justify-self: start; white-space: nowrap; overflow-wrap: anywhere; }
.cs-block li span { color: var(--text-2); }
@media (max-width: 520px) { .cs-block li { grid-template-columns: 1fr; gap: 2px; } }
@media print {
  .vinyl, .vinyl-footer, .crumbs, .lesson-head .btn-row, .badges88 { display: none !important; }
  .cheatsheet { grid-template-columns: 1fr 1fr; gap: 10px; }
  .cs-block { border: 1px solid #ccc; background: #fff; padding: 10px 12px; }
  .cs-block li { font-size: 11px; }
  .cs-block li span { color: #333; }
  .lesson-head h1 { font-size: 28px; color: #000; }
  .lesson-head .lead { font-size: 13px; color: #333; }
  .grad-text { -webkit-text-fill-color: #000; color: #000; background: none; }
}

/* ---------- AI features: tutor, exam coach, readiness check ---------- */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.tutor { padding: 20px; }
.ai-log { display: flex; flex-direction: column; gap: 10px; margin: 4px 0 14px; }
.ai-log:empty { display: none; }
.ai-msg { padding: 12px 16px; border-radius: 14px; font-size: 15.5px; line-height: 1.6; max-width: 92%; }
.ai-msg p { margin: 0 0 8px; } .ai-msg p:last-child, .ai-msg ul:last-child { margin-bottom: 0; }
.ai-msg ul { margin: 0 0 8px; padding-left: 20px; }
.ai-msg.me { align-self: flex-end; background: var(--text); color: var(--bg); border-bottom-right-radius: 4px; }
.ai-msg.ai { align-self: flex-start; background: var(--surface-2); border: 1px solid var(--border); border-bottom-left-radius: 4px; color: var(--text); }
.ai-ask { display: flex; gap: 10px; align-items: flex-end; }
.ai-ask textarea, .readiness-form textarea, .lead-fields input[type="text"], .lead-fields input[type="email"] {
  width: 100%; font: 400 16px/1.5 var(--font); color: var(--text); background: var(--surface-2);
  border: 1px solid var(--border-strong); border-radius: 12px; padding: 10px 14px; resize: vertical;
}
.ai-ask textarea:focus, .readiness-form textarea:focus, .lead-fields input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.ai-ask .btn { flex-shrink: 0; }
.ai-wait { display: flex; align-items: center; gap: 10px; color: var(--text-2); margin: 0; }
.ai-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--grad); animation: ai-pulse 1s ease-in-out infinite alternate; }
@keyframes ai-pulse { from { opacity: .35; transform: scale(.8); } to { opacity: 1; transform: scale(1.1); } }
.ai-error { color: var(--bad); margin: 8px 0 0; }
.ai-why { margin-top: 12px; }
.ai-coach { margin-top: 16px; }
.ai-report h4 { margin: 22px 0 8px; }
.ai-focus { padding: 14px 16px; margin-bottom: 10px; border-radius: 14px; background: var(--surface-2); border-left: 3px solid var(--accent-3); }
.ai-focus p { margin: 6px 0 0; }
.ai-plan { padding-left: 20px; } .ai-plan li { margin-bottom: 8px; }
.ai-report [data-coach-quiz] { display: grid; gap: 14px; }
.readiness-cta { display: flex; gap: 20px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.readiness-cta p { margin: 6px 0 0; color: var(--text-2); }
.readiness-form fieldset { border: 0; padding: 0; margin: 0 0 22px; }
.readiness-form legend { font-weight: 700; font-size: 17px; margin-bottom: 10px; padding: 0; }
.picks { display: flex; flex-wrap: wrap; gap: 8px; }
.pick { position: relative; }
.pick input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.pick span { display: inline-block; font: 600 14.5px var(--font); padding: 9px 14px; border-radius: 999px; background: var(--surface); color: var(--text-2); border: 1px solid var(--border-strong); }
.pick input:checked + span { background: var(--text); color: var(--bg); border-color: var(--text); }
.pick input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.readiness-lead { margin: 4px 0 18px; padding: 14px 16px; border-radius: 14px; border: 1px dashed var(--border-strong); }
.readiness-lead summary { cursor: pointer; font-weight: 600; }
.lead-fields { display: grid; gap: 12px; margin-top: 14px; }
.lead-fields label { display: grid; gap: 6px; font-size: 14.5px; font-weight: 600; }
.lead-fields .consent { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; color: var(--text-2); }
.lead-fields .consent input { margin-top: 4px; width: 18px; height: 18px; flex-shrink: 0; }
.readiness-report h2 { margin-top: 0; }
.readiness-report li { margin-bottom: 8px; }
.ai-phases { display: grid; gap: 12px; }
@media (min-width: 720px) { .ai-phases { grid-template-columns: repeat(3, 1fr); } }
.ai-phases > div { padding: 14px 16px; border-radius: 14px; background: var(--surface-2); border: 1px solid var(--border); }
.ai-phases h4 { margin: 0 0 6px; }
.ai-phases ul { padding-left: 18px; margin: 0; font-size: 15px; }
@media (max-width: 719px) { .ai-ask { flex-direction: column; align-items: stretch; } .ai-msg { max-width: 100%; } }
@media print { .readiness-form, .breadcrumbs, .lesson-head, .no-print { display: none !important; } .readiness-report { border: 0; box-shadow: none; } }
.prose .ai-msg.me, .prose .ai-msg.me p { color: var(--bg); }
.prose .ai-msg.ai p, .prose .ai-msg.ai li { color: var(--text); }
.ai-coach .ai-report, .readiness-report > h3 { margin-top: 22px; }
.ai-coach .ai-report { padding-top: 18px; border-top: 1px solid var(--border); }