/* TeachMeLike5 — a warm, playful "explain it like I'm five" design system.
   Vanilla CSS, no build step. Theming via CSS variables. */

:root {
  --sky-1: #eaf4ff;
  --sky-2: #d7ebff;
  --ink: #24324a;
  --ink-soft: #5b6b86;
  --card: #ffffff;
  --line: #e6eefb;

  --blue: #3d7cf0;
  --blue-deep: #2b5fd0;
  --sun: #ffcf5c;
  --coral: #ff7a6b;
  --mint: #37c99b;
  --grape: #9b7bff;

  --shadow: 0 10px 30px rgba(45, 84, 160, 0.12);
  --shadow-sm: 0 4px 14px rgba(45, 84, 160, 0.10);
  --radius: 22px;
  --radius-sm: 14px;

  --font: "Nunito", "Quicksand", -apple-system, BlinkMacSystemFont, "Segoe UI",
    system-ui, sans-serif;
  --font-display: "Space Grotesk", var(--font);
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: linear-gradient(180deg, var(--sky-1), var(--sky-2) 60%, #eef6ff);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue-deep); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- layout ---------- */
.wrap { max-width: 1000px; margin: 0 auto; padding: 0 20px; }
.stack > * + * { margin-top: 18px; }

/* ---------- header ---------- */
header.site {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
/* thin 40px strip: everything sits on one compact line */
header.site .bar {
  max-width: 1120px; margin: 0 auto; padding: 0 20px;
  height: 40px; display: flex; align-items: center; gap: 12px; flex-wrap: nowrap;
}
.brand { display: flex; align-items: center; gap: 7px; font-weight: 800; font-size: 15px; color: var(--ink); white-space: nowrap; }
.brand .logo { font-size: 18px; }
.brand small { font-weight: 700; color: var(--ink-soft); font-size: 10px; letter-spacing: .3px; }
.spacer { flex: 1; }

/* keep the auth controls on one line (a flex child .user-chip is block-level
   and would otherwise force Terminal / name / Sign out onto three rows) */
#auth-slot { display: flex; align-items: center; gap: 10px; }
header.site .btn { padding: 5px 12px; font-size: 12.5px; }
.user-chip { display: flex; align-items: center; gap: 7px; font-weight: 700; font-size: 13px; white-space: nowrap; }
.user-chip img, .avatar-fallback { width: 24px; height: 24px; border-radius: 50%; }
.avatar-fallback {
  display: grid; place-items: center;
  background: var(--grape); color: #fff; font-weight: 800; font-size: 12px;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  border: none; cursor: pointer; font-family: var(--font); font-weight: 800;
  font-size: 15px; padding: 11px 18px; border-radius: 999px; color: #fff;
  background: var(--blue); box-shadow: var(--shadow-sm);
  transition: transform .08s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-1px); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn.secondary { background: #fff; color: var(--blue-deep); border: 2px solid var(--line); }
.btn.ghost { background: transparent; color: var(--ink-soft); box-shadow: none; }
.btn.sun { background: var(--sun); color: #6b4b00; }
.btn.mint { background: var(--mint); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.btn.big { font-size: 17px; padding: 14px 26px; }

/* ---------- hero ---------- */
.hero { text-align: center; padding: 54px 0 30px; }
.hero h1 { font-size: clamp(30px, 5vw, 46px); margin: 0 0 12px; line-height: 1.08; }
.hero p.lead { font-size: 19px; color: var(--ink-soft); max-width: 620px; margin: 0 auto 22px; }
.hero .cloud-emoji { font-size: 60px; display: block; margin-bottom: 6px; animation: bob 4s ease-in-out infinite; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* ---------- cards ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.card {
  background: var(--card); border-radius: var(--radius); padding: 22px;
  box-shadow: var(--shadow); border: 1px solid var(--line);
}
.course-card { display: flex; flex-direction: column; gap: 10px; transition: transform .1s ease; }
.course-card:hover { transform: translateY(-3px); text-decoration: none; }
.course-card .icon { font-size: 40px; }
.course-card h3 { margin: 0; font-size: 20px; }
.course-card p { margin: 0; color: var(--ink-soft); font-size: 14px; }
.pill { display: inline-block; font-size: 12px; font-weight: 800; padding: 4px 10px; border-radius: 999px; background: var(--sky-2); color: var(--blue-deep); }

/* ---------- progress ---------- */
.progress-track { height: 14px; background: var(--sky-2); border-radius: 999px; overflow: hidden; }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--mint), var(--blue)); border-radius: 999px; transition: width .5s ease; }

/* ---------- level list ---------- */
.levels { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.level-row {
  display: flex; align-items: center; gap: 14px; padding: 16px 18px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}
.level-row.locked { opacity: .55; }
.level-badge {
  width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  font-weight: 800; font-size: 18px; flex-shrink: 0;
}
.level-badge.completed { background: var(--mint); color: #fff; }
.level-badge.unlocked { background: var(--sun); color: #6b4b00; }
.level-badge.locked { background: #e7ecf5; color: #9aa8c0; }
.level-row .meta { flex: 1; }
.level-row .meta h4 { margin: 0 0 2px; font-size: 17px; }
.level-row .meta p { margin: 0; color: var(--ink-soft); font-size: 13px; }

/* ---------- lesson blocks ---------- */
.lesson { max-width: 720px; margin: 0 auto; }
.learning-lab-layout {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: 22px; align-items: start; max-width: 1180px; margin: 0 auto;
}
.learning-lab-layout .lesson { max-width: none; margin: 0; }
.lesson .kicker { color: var(--blue-deep); font-weight: 800; letter-spacing: .4px; text-transform: uppercase; font-size: 13px; }
.lesson h1 { font-size: 32px; margin: 4px 0 24px; }
.block { margin: 18px 0; font-size: 18px; line-height: 1.6; }
.block.intro { font-size: 20px; }
/* Lesson Standard v2 sections */
.block.objectives, .block.analogy-set, .block.misconceptions, .block.mission {
  border-radius: var(--radius); padding: 18px 22px; box-shadow: var(--shadow-sm);
}
.block.objectives { background: var(--sky-1); }
.block.objectives ul, .block.misconceptions ul { margin: 8px 0 0; padding-left: 22px; }
.block.objectives li, .block.misconceptions li { margin: 4px 0; }
.block.analogy-set { background: linear-gradient(135deg, #fff7e6, #fff); border: 2px solid var(--sun); }
.block.analogy-set h3, .block.misconceptions h3, .block.mission h3 { margin: 0 0 10px; font-size: 20px; }
.block.analogy-set p { margin: 7px 0; font-size: 16.5px; }
.block.misconceptions { background: #fff2f0; border-left: 4px solid var(--coral); }
.block.mission { background: #eafaf4; border-left: 4px solid var(--mint); }
.block.analogy {
  background: linear-gradient(135deg, #fff7e6, #fff);
  border: 2px solid var(--sun); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow-sm);
}
.block.analogy .emoji { font-size: 40px; }
.block.analogy h3 { margin: 6px 0 8px; font-size: 21px; }
.block.point { padding-left: 34px; position: relative; }
.block.point::before { content: "✦"; position: absolute; left: 6px; color: var(--coral); font-size: 18px; }
.block.example {
  background: #eefaf4; border-left: 5px solid var(--mint);
  border-radius: var(--radius-sm); padding: 16px 18px;
}
.block.example h3 { margin: 0 0 6px; font-size: 17px; color: #1f8f6d; }
.keywords { display: flex; flex-wrap: wrap; gap: 10px; }
.keyword { background: var(--sky-1); border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; max-width: 320px; }
.keyword b { color: var(--blue-deep); }
.keyword span { display: block; color: var(--ink-soft); font-size: 14px; margin-top: 3px; }
.recap { background: linear-gradient(135deg, #efe9ff, #fff); border: 2px solid var(--grape); border-radius: var(--radius); padding: 22px; }
.recap ol { margin: 10px 0 0; padding-left: 20px; }
.recap li { margin: 6px 0; }

/* ---------- lesson hook + connection chain ---------- */
.lesson .hook-q {
  font-family: var(--font-display, var(--font)); font-weight: 700;
  font-size: clamp(26px, 3.6vw, 38px); line-height: 1.15; letter-spacing: -0.6px;
  margin: 4px 0 6px;
}
.lesson .hook-sub { color: var(--ink-soft); font-size: 17px; margin: 0 0 24px; font-weight: 700; }
.panel-kicker {
  color: var(--blue-deep); font-weight: 900; letter-spacing: .08em;
  text-transform: uppercase; font-size: 11px; margin: 0 0 8px;
}

.food-lab { position: sticky; top: 58px; display: grid; gap: 14px; }
.lab-panel {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow-sm);
}
.lab-panel h2 { margin: 0 0 12px; font-size: 20px; }
.phone-shell {
  border: 1px solid #d8e4f6; border-radius: 26px; padding: 14px;
  background: linear-gradient(180deg, #f8fbff, #edf5ff);
}
.phone-top {
  display: flex; align-items: center; justify-content: space-between;
  color: var(--ink); font-size: 13px; margin-bottom: 12px;
}
.order-card {
  display: flex; gap: 10px; align-items: center; background: #fff;
  border: 1px solid var(--line); border-radius: 16px; padding: 12px;
}
.order-card p { margin: 2px 0 0; color: var(--ink-soft); font-size: 12px; }
.food-emoji { font-size: 28px; }
.app-status {
  margin: 12px 0; padding: 11px 12px; border-radius: 14px;
  background: #10233f; color: #7CFFB2; font-family: var(--font-mono);
  font-size: 12px; font-weight: 800; min-height: 42px;
}
.app-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 12px;
}
.app-stats div {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 10px;
}
.app-stats span {
  display: block; color: var(--ink-soft); font-size: 11px; font-weight: 900;
  letter-spacing: .06em; text-transform: uppercase;
}
.app-stats b { display: block; font-size: 18px; margin-top: 2px; }
.lab-action { width: 100%; box-shadow: none; }
.code-panel-lite pre {
  margin: 0; background: #10233f; color: #d9f7ff; border-radius: 14px;
  padding: 14px; font-family: var(--font-mono); font-size: 13px;
  line-height: 1.7; overflow-x: auto;
}
.code-panel-lite pre span { display: block; padding: 1px 6px; border-radius: 7px; }
.code-panel-lite pre span.active { background: rgba(124, 255, 178, .16); color: #7CFFB2; }
.code-panel-lite p { color: var(--ink-soft); font-weight: 700; font-size: 13px; line-height: 1.45; margin: 12px 0 0; }

.connect-btn {
  display: inline-flex; align-items: center; gap: 9px; margin: 10px 0;
  font-family: var(--font); font-weight: 800; font-size: 15px; cursor: pointer;
  color: var(--blue-deep); background: var(--sky-1); border: 2px dashed var(--blue);
  border-radius: 999px; padding: 11px 20px;
  transition: background 0.15s ease, transform 0.1s ease;
}
.connect-btn:hover { background: var(--sky-2); transform: translateY(-1px); }

.chain { list-style: none; margin: 18px 0 0; padding: 0; text-align: left; }
.chain li {
  position: relative; padding: 10px 0 10px 30px; opacity: 0;
  animation: chain-in 0.45s ease forwards;
}
.chain li::before {
  content: "○"; position: absolute; left: 4px; top: 10px; color: var(--blue); font-weight: 800;
}
.chain li:not(:last-child)::after {
  content: ""; position: absolute; left: 10px; top: 34px; bottom: -6px;
  width: 2px; background: linear-gradient(var(--blue), var(--grape));
}
.chain li b { font-size: 16.5px; }
.chain li span { display: block; color: var(--ink-soft); font-size: 13.5px; }
.chain li:last-child::before { content: "◉"; color: var(--grape); }
@keyframes chain-in { from { opacity: 0; transform: translateX(-10px); } to { opacity: 1; transform: translateX(0); } }
.chain-moral {
  margin-top: 18px; font-weight: 800; color: var(--blue-deep); text-align: center;
  opacity: 0; animation: chain-in 0.5s ease forwards;
}
@media (prefers-reduced-motion: reduce) {
  .chain li, .chain-moral { animation: none; opacity: 1; }
}

/* ---------- quiz ---------- */
.quiz { background: #fff; border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); border: 1px solid var(--line); margin-top: 28px; }
.quiz h2 { margin: 0 0 4px; }
.qitem { margin: 20px 0; }
.qitem p.q { font-weight: 800; font-size: 17px; margin: 0 0 10px; }
.opt {
  display: block; width: 100%; text-align: left; padding: 12px 15px; margin: 8px 0;
  border-radius: 12px; border: 2px solid var(--line); background: #fff; cursor: pointer;
  font-family: var(--font); font-size: 15px; font-weight: 700; color: var(--ink);
  transition: border-color .15s ease, background .15s ease;
}
.opt:hover { border-color: var(--blue); }
.opt.chosen { border-color: var(--blue); background: var(--sky-1); }
.opt.correct { border-color: var(--mint); background: #e7f9f1; }
.opt.wrong { border-color: var(--coral); background: #ffeeec; }

/* ---------- badges / toast ---------- */
.badge-pop {
  position: fixed; inset: 0; display: grid; place-items: center; z-index: 50;
  background: rgba(36, 50, 74, 0.45); backdrop-filter: blur(3px);
}
.badge-pop .card { text-align: center; max-width: 380px; animation: pop .4s ease; }
.badge-pop .medal { font-size: 74px; }
@keyframes pop { 0% { transform: scale(.7); opacity: 0; } 100% { transform: scale(1); opacity: 1; } }

.note { background: #fff8e6; border: 1px solid var(--sun); border-radius: var(--radius-sm); padding: 12px 16px; color: #7a5a00; font-weight: 700; }

/* ---------- simulator ---------- */
.sim-toolbar { display: flex; flex-wrap: wrap; gap: 10px; }
.tool {
  position: relative; display: flex; flex-direction: column; align-items: center; gap: 4px;
  border: 2px solid var(--line); background: #fff; border-radius: 16px; padding: 12px 14px;
  cursor: pointer; font-family: var(--font); font-weight: 800; color: var(--ink); min-width: 92px;
}
.tool .t-icon { font-size: 24px; }
.tool small { font-size: 12px; color: var(--ink-soft); font-weight: 700; }
.tool:hover:not(.locked) { border-color: var(--blue); transform: translateY(-1px); }
.tool.locked { opacity: .5; cursor: not-allowed; }
.tool.locked::after { content: "🔒"; position: absolute; top: 6px; right: 8px; font-size: 13px; }

.stage {
  position: relative; min-height: 320px; background:
    radial-gradient(circle at 20% 20%, #fff 0, transparent 40%),
    linear-gradient(180deg, #f2f8ff, #e9f2ff);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-top: 16px;
  overflow: hidden;
}
.servers { display: flex; flex-wrap: wrap; gap: 12px; }
.server {
  width: 74px; height: 88px; border-radius: 14px; background: #cfe0f7; border: 2px solid #b6cff0;
  display: grid; place-items: center; font-size: 30px; position: relative;
  transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}
.server.on { background: #dcefff; box-shadow: 0 0 0 3px rgba(61,124,240,.25), var(--shadow-sm); }
.server .light { position: absolute; top: 8px; right: 8px; width: 10px; height: 10px; border-radius: 50%; background: #b6b6b6; }
.server.on .light { background: var(--mint); box-shadow: 0 0 8px var(--mint); }
.server.spawn { animation: pop .3s ease; }

.bucket { width: 96px; height: 90px; border-radius: 8px 8px 18px 18px; background: linear-gradient(180deg, #ffe1a6, #ffcf5c); border: 2px solid #f2b73d; display: grid; place-items: center; position: relative; }
.bucket .files { position: absolute; bottom: 8px; display: flex; gap: 3px; }
.bucket .file { width: 12px; height: 15px; background: #fff; border-radius: 2px; box-shadow: var(--shadow-sm); }
.bucket.locked-box::after { content: "🔒"; position: absolute; top: -10px; right: -10px; font-size: 22px; }

.spark { font-size: 40px; transition: transform .2s ease, filter .2s ease; filter: grayscale(1) opacity(.5); }
.spark.active { filter: none; animation: zap .5s ease; }
@keyframes zap { 0%{ transform: scale(1);} 40%{ transform: scale(1.4) rotate(-8deg);} 100%{ transform: scale(1);} }

.packet {
  position: absolute; font-size: 22px; left: 10px; top: 50%;
  transition: left .9s cubic-bezier(.5,0,.5,1);
}

.zone { position: absolute; }
.zone-label { font-size: 12px; font-weight: 800; color: var(--ink-soft); margin-bottom: 6px; }

.billboard {
  display: inline-flex; align-items: center; gap: 8px; background: #10233f; color: #7CFFB2;
  font-weight: 800; padding: 10px 16px; border-radius: 14px; font-variant-numeric: tabular-nums;
  font-size: 18px; box-shadow: var(--shadow-sm);
}
.billboard .coin { color: var(--sun); }

.machine-stage {
  background:
    radial-gradient(circle at 18% 18%, rgba(255, 255, 255, 0.95), transparent 34%),
    linear-gradient(180deg, #f8fbff, #e9f2ff);
}
.machine-readout {
  display: inline-flex; align-items: center;
  background: #10233f; color: #7CFFB2; font-family: var(--font-mono);
  font-weight: 800; padding: 10px 14px; border-radius: 14px;
  box-shadow: var(--shadow-sm);
}
.machine-layout {
  display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(240px, .8fr);
  gap: 22px; margin-top: 18px; align-items: start;
}
.instruction-strip {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px; margin-top: 16px;
}
.instruction-card {
  border: 1px solid #b6cff0; background: rgba(255, 255, 255, 0.78);
  border-radius: 14px; padding: 12px; box-shadow: var(--shadow-sm);
}
.instruction-card span {
  display: block; color: var(--ink-soft); font-size: 11px; font-weight: 900;
  letter-spacing: .08em; text-transform: uppercase; margin-bottom: 4px;
}
.instruction-card b { display: block; font-size: 14px; line-height: 1.25; }
.instruction-card.active {
  border-color: var(--sun); background: #fff7df;
  box-shadow: 0 0 0 3px rgba(255, 207, 92, .22), var(--shadow-sm);
}
.memory-shelf {
  min-height: 168px; display: flex; flex-wrap: wrap; gap: 14px;
  border: 2px dashed #b6cff0; border-radius: 18px; padding: 16px;
  background: rgba(255, 255, 255, 0.72);
}
.memory-box {
  width: 138px; min-height: 112px; border: 2px solid #f2b73d;
  background: linear-gradient(180deg, #fff7df, #ffd978);
  border-radius: 12px; padding: 12px; cursor: pointer; font-family: var(--font);
  box-shadow: var(--shadow-sm); display: grid; align-content: space-between;
  text-align: left; transition: transform .12s ease, border-color .12s ease;
}
.memory-box:hover, .memory-box.active { transform: translateY(-2px); border-color: var(--blue); }
.box-name {
  display: block; color: #7a5a00; font-size: 12px; font-weight: 900;
  letter-spacing: .08em; text-transform: uppercase;
}
.box-value {
  display: block; font-family: var(--font-mono); font-size: 34px;
  color: var(--ink); font-weight: 900; line-height: 1;
}
.machine-history {
  margin: 0; padding-left: 20px; color: var(--ink-soft); font-weight: 700;
}
.machine-history li { margin: 8px 0; }

.muted { color: var(--ink-soft); }
.center { text-align: center; }
.hidden { display: none !important; }
footer.site { text-align: center; color: var(--ink-soft); padding: 40px 20px; font-size: 13px; }

@media (max-width: 640px) {
  .hero { padding: 34px 0 20px; }
  .level-row { padding: 13px; }
  .learning-lab-layout { grid-template-columns: 1fr; }
  .food-lab { position: static; }
  .instruction-strip { grid-template-columns: 1fr; }
  .machine-layout { grid-template-columns: 1fr; }
  .memory-box { width: 100%; }
}

/* ---------- fear/relief hero (landing page) ---------- */
.fear-hero {
  background:
    radial-gradient(900px 420px at 82% -10%, rgba(61, 124, 240, 0.22), transparent 60%),
    linear-gradient(160deg, #0c1a30, #10233f 55%, #0e1f39);
  color: #eaf1ff;
  overflow: hidden;
}
.fear-hero .inner {
  max-width: 1080px; margin: 0 auto; padding: 56px 20px 64px;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 48px; align-items: center;
}

/* --- left: the wall of code --- */
.code-panel {
  position: relative; height: 470px; border-radius: var(--radius);
  background: #0a1628; border: 1px solid #1d3557;
  box-shadow: inset 0 0 60px rgba(0, 0, 0, 0.45), 0 20px 50px rgba(2, 8, 20, 0.5);
  overflow: hidden;
}
.code-panel .chrome {
  display: flex; gap: 6px; padding: 12px 14px; position: relative; z-index: 3;
  background: rgba(10, 22, 40, 0.9);
}
.code-panel .chrome i { width: 11px; height: 11px; border-radius: 50%; background: #22385c; }
.code-scroll {
  position: absolute; inset: 40px 0 0 0; padding: 0 20px;
  font-family: var(--font-mono); font-size: 13px; line-height: 2.05;
  white-space: pre; animation: code-up 36s linear infinite;
}
.code-scroll .ln { display: block; color: #46628f; }
.code-scroll .ln.cmd { color: #6d8fc4; }
.code-scroll .ln.str { color: #4e9f83; }
.code-scroll .ln.cmt { color: #34507c; font-style: italic; }
.code-scroll .ln.err { color: #b05869; }
.code-scroll .ln.key { color: #8a7fc9; }
@keyframes code-up { from { transform: translateY(0); } to { transform: translateY(-50%); } }
/* fade the stream out at top and bottom so it reads as endless */
.code-panel::before, .code-panel::after {
  content: ""; position: absolute; left: 0; right: 0; height: 70px; z-index: 2; pointer-events: none;
}
.code-panel::before { top: 0; background: linear-gradient(#0a1628 30%, transparent); }
.code-panel::after { bottom: 0; background: linear-gradient(transparent, #0a1628 75%); }

/* --- the signature: live jargon decoder --- */
.decoder {
  position: absolute; left: 14px; right: 14px; top: 50%; transform: translateY(-50%);
  z-index: 4; border-radius: 14px; border: 2px solid var(--sun);
  background: rgba(13, 27, 49, 0.92); backdrop-filter: blur(2px);
  box-shadow: 0 0 0 4px rgba(255, 207, 92, 0.12), 0 0 34px rgba(255, 207, 92, 0.25);
  padding: 10px 14px 12px;
}
.decoder .tag {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 2px;
  color: var(--sun); display: flex; align-items: center; gap: 7px;
}
.decoder .tag .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--sun);
  animation: blink 1.2s ease-in-out infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }
.decoder-line { margin-top: 6px; min-height: 30px; font-size: 15px; font-weight: 700; }
.decoder-line code {
  font-family: var(--font-mono); font-size: 14px; color: #9fb8e0; font-weight: 400;
}
.decoder-line .plain { color: #fff; font-size: 17px; }
.decoder-line .plain b { color: var(--sun); }
.decoder-line.swap { animation: swap-in 0.35s ease; }
@keyframes swap-in {
  from { opacity: 0; transform: translateY(7px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- right: the hook --- */
.hook .eyebrow {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 2.5px;
  color: #7fa3d9; text-transform: uppercase; margin: 0 0 18px;
}
.hook h1 {
  font-family: var(--font-display); font-weight: 700; margin: 0;
  font-size: clamp(34px, 4.6vw, 54px); line-height: 1.04; letter-spacing: -1px;
}
.hook h1 .scared { color: var(--coral); display: block; font-size: 1.35em; }
.hook .promise {
  font-family: var(--font-display); font-weight: 500; margin: 20px 0 0;
  font-size: clamp(20px, 2.3vw, 27px); line-height: 1.3; color: #cfe0ff;
}
.hook .promise mark {
  background: linear-gradient(transparent 58%, rgba(255, 207, 92, 0.45) 0);
  color: var(--sun); padding: 0 2px;
}
.hook .fomo { margin: 18px 0 0; font-size: 16.5px; line-height: 1.6; color: #a9bfe2; max-width: 46ch; }
.hook .fomo b { color: #eaf1ff; }
.hook .cta-zone { margin-top: 26px; }
.hook .cta-zone .lead { color: #a9bfe2; }
.chips { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
.chip {
  font-size: 13px; font-weight: 800; color: #cfe0ff; padding: 7px 13px;
  border: 1px solid #2b4a79; border-radius: 999px; background: rgba(21, 40, 70, 0.55);
}

@media (max-width: 880px) {
  .fear-hero .inner { grid-template-columns: 1fr; gap: 30px; padding: 40px 20px 48px; }
  .hook { order: 1; }
  .code-panel { order: 2; height: 300px; }
}

@media (prefers-reduced-motion: reduce) {
  .code-scroll { animation: none; }
  .decoder .tag .dot { animation: none; }
  .decoder-line.swap { animation: none; }
  .hero .cloud-emoji { animation: none; }
}

/* ---------- dark mode ---------- */
/* A reusable token+rule set, applied for a MANUAL choice (data-theme=dark) and
   for the OS setting (unless the user has forced light via the theme toggle). */
:root[data-theme="dark"] {
  --sky-1: #161b24; --sky-2: #12161d; --ink: #eef1f6; --ink-soft: #a6adba;
  --card: #181d26; --line: #262c38;
}
:root[data-theme="dark"] body { background: linear-gradient(180deg, #0f1319, #0d1015 60%, #0b0d11); }
:root[data-theme="dark"] header.site { background: rgba(15, 19, 25, 0.85); }
:root[data-theme="dark"] .btn.secondary { background: #1c222c; color: #d4dae4; }
:root[data-theme="dark"] .block.analogy { background: linear-gradient(135deg, #2a2a17, #1c222c); }
:root[data-theme="dark"] .block.example { background: #12352b; }
:root[data-theme="dark"] .opt { background: #1c222c; color: var(--ink); }
:root[data-theme="dark"] .server { background: #232a36; border-color: #313a49; }
:root[data-theme="dark"] .server.on { background: #2e3745; }
:root[data-theme="dark"] .billboard { background: #0a0d12; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --sky-1: #161b24; --sky-2: #12161d; --ink: #eef1f6; --ink-soft: #a6adba;
    --card: #181d26; --line: #262c38;
  }
  :root:not([data-theme="light"]) body { background: linear-gradient(180deg, #0f1319, #0d1015 60%, #0b0d11); }
  :root:not([data-theme="light"]) header.site { background: rgba(15, 19, 25, 0.85); }
  :root:not([data-theme="light"]) .btn.secondary { background: #1c222c; color: #d4dae4; }
  :root:not([data-theme="light"]) .block.analogy { background: linear-gradient(135deg, #2a2a17, #1c222c); }
  :root:not([data-theme="light"]) .block.example { background: #12352b; }
  :root:not([data-theme="light"]) .opt { background: #1c222c; color: var(--ink); }
  :root:not([data-theme="light"]) .server { background: #232a36; border-color: #313a49; }
  :root:not([data-theme="light"]) .server.on { background: #2e3745; }
  :root:not([data-theme="light"]) .billboard { background: #0a0d12; }
}