/* ============================================================================
   DECODED - STYLES  (playful, friendly, mobile-game look)
   ----------------------------------------------------------------------------
   Design tokens live at the top. Default theme is bright and light; a redesigned
   dark theme lives under :root[data-theme="dark"]. Change the tokens to rebrand.
   ============================================================================ */

:root {
  /* Grounds (light, soft green-tinted) */
  --bg: #EEF5E4;
  --bg-2: #E4EFD5;
  --panel: #FFFFFF;
  --panel-2: #F2F7EA;
  --border: #E1E9D3;
  --border-strong: #CEDAB8;

  /* Brand + play colors */
  --green: #5BCB2E;        /* primary action, juicy green */
  --green-deep: #3E9A1B;   /* pressable button bottom edge */
  --lime: #C6FF3A;         /* signature accent (progress, highlights) */
  --lime-deep: #93C71E;
  --cyan: #22C4E6;
  --cyan-deep: #1499B7;
  --amber: #FFB020;
  --amber-deep: #E08A00;
  --coral: #FF5C6C;
  --coral-deep: #E23B4C;
  --purple: #A970FF;
  --purple-deep: #8A4DE0;

  /* Text */
  --text: #1E2A15;
  --muted: #6C7560;
  --ink: #10220A;          /* dark text used on green/lime/amber fills */

  --red: var(--coral);
  --grad: linear-gradient(90deg, var(--lime-deep), var(--lime));

  --radius: 24px;
  --radius-sm: 16px;
  --maxw: 720px;
  --shadow-card: 0 6px 22px rgba(45, 70, 20, 0.08);
  --shadow-pop: 0 14px 34px rgba(45, 70, 20, 0.16);
  --bounce: cubic-bezier(.34, 1.56, .64, 1);

  --font: "Nunito", ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Fredoka", "Nunito", ui-rounded, "SF Pro Rounded", system-ui, sans-serif;
}

/* ------------------------------- Dark theme ------------------------------ */
:root[data-theme="dark"] {
  --bg: #0D120A;
  --bg-2: #10160C;
  --panel: #171E12;
  --panel-2: #1F2818;
  --border: #2C3823;
  --border-strong: #3A4A2D;

  --green: #62D634;
  --green-deep: #3C8C1D;
  --lime: #C6FF3A;
  --lime-deep: #9FD728;
  --cyan: #3AE8FF;
  --cyan-deep: #1FA9C4;
  --amber: #FFB93A;
  --amber-deep: #C9860F;
  --coral: #FF6B79;
  --coral-deep: #D24350;

  --text: #F1F7EA;
  --muted: #97A388;
  --ink: #0C1707;

  --shadow-card: 0 6px 22px rgba(0, 0, 0, 0.35);
  --shadow-pop: 0 14px 34px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  color: var(--text);
  font-family: var(--font);
  font-weight: 600;
  -webkit-font-smoothing: antialiased;
  min-height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(60% 40% at 85% 0%, color-mix(in srgb, var(--lime) 22%, transparent) 0%, transparent 60%),
    radial-gradient(50% 40% at 5% 15%, color-mix(in srgb, var(--cyan) 16%, transparent) 0%, transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  background-attachment: fixed;
}

a { color: var(--cyan-deep); font-weight: 800; }
:root[data-theme="dark"] a { color: var(--cyan); }

/* ------------------------- Moving-code background ------------------------- */
#bg-code { position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.bg-line {
  position: absolute;
  bottom: -40px;
  color: var(--green-deep);
  opacity: 0.06;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-weight: 700;
  white-space: nowrap;
  animation-name: drift;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}
:root[data-theme="dark"] .bg-line { color: var(--lime); opacity: 0.05; }
@keyframes drift { from { transform: translateY(0); } to { transform: translateY(-115vh); } }

/* -------------------------------- Layout --------------------------------- */
.topbar {
  position: relative; z-index: 5;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 16px; max-width: var(--maxw); margin: 0 auto; width: 100%;
}
.brandbar { display: flex; align-items: center; }
.brand { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; color: var(--text); }
.brand-mascot { display: inline-flex; width: 40px; }
.brand-word { font-family: var(--font-display); font-weight: 700; letter-spacing: 0.5px; font-size: 22px; }

/* HUD lives on its own row under the top bar so it never crowds it on phones. */
.hud {
  display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 8px;
  position: relative; z-index: 5;
  width: 100%; max-width: var(--maxw);
  margin: -2px auto 0; padding: 0 16px 4px;
}
.hud[hidden] { display: none; }
.hud-item {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 14px; font-weight: 800;
  white-space: nowrap;
  box-shadow: var(--shadow-card);
}
.hud-item .ic { color: var(--lime-deep); }
.hud-item.flame { color: var(--amber-deep); border-color: color-mix(in srgb, var(--amber) 55%, var(--border)); }
.hud-item.flame .ic { color: var(--amber-deep); }

.screen { position: relative; z-index: 1; flex: 1; width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 8px 16px 44px; }

.sitefoot { position: relative; z-index: 1; text-align: center; color: var(--muted); font-size: 13px; font-weight: 700; padding: 20px 16px 28px; }
.back-to-site { display: inline-block; margin-top: 8px; color: var(--text); text-decoration: underline; text-underline-offset: 3px; }

/* ------------------------------- Buttons --------------------------------- */
/* Chunky, pressable "candy" buttons: a colored bottom edge that squashes down. */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  border: none;
  background: var(--panel);
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  padding: 14px 22px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  box-shadow: 0 4px 0 var(--border-strong);
  transition: transform .07s var(--bounce), box-shadow .07s ease, filter .15s ease, background .15s ease;
  -webkit-tap-highlight-color: transparent;
}
.btn:hover { filter: brightness(1.03); }
.btn:active { transform: translateY(4px); box-shadow: 0 0 0 var(--border-strong); }
.btn.primary { background: var(--green); color: #fff; box-shadow: 0 4px 0 var(--green-deep); text-shadow: 0 1px 0 rgba(0,0,0,.14); }
.btn.ghost { background: var(--panel); color: var(--text); box-shadow: 0 4px 0 var(--border-strong); }
.btn.danger { background: var(--panel); color: var(--coral-deep); box-shadow: 0 4px 0 color-mix(in srgb, var(--coral) 40%, var(--border-strong)); }
.btn.big { font-size: 19px; padding: 16px 36px; margin-top: 10px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: 0 4px 0 var(--border-strong); filter: none; }
.btn.primary:disabled { box-shadow: 0 4px 0 var(--green-deep); }

.link-btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: none; border: none; color: var(--muted);
  font-family: var(--font-display); font-size: 15px; font-weight: 600;
  cursor: pointer; padding: 6px 4px;
}
.link-btn:hover { color: var(--cyan-deep); }
:root[data-theme="dark"] .link-btn:hover { color: var(--cyan); }

:focus-visible { outline: 3px solid var(--cyan-deep); outline-offset: 3px; border-radius: 8px; }

/* -------------------------------- Cards ---------------------------------- */
.card {
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  margin: 16px 0;
  box-shadow: var(--shadow-card);
}

.screen-center { text-align: center; display: flex; flex-direction: column; align-items: center; padding: 20px 8px 8px; }
.screen-pad { padding-top: 8px; }
.screen-title { font-family: var(--font-display); font-weight: 700; font-size: 30px; margin: 8px 0 4px; text-wrap: balance; }
.screen-sub { color: var(--muted); margin: 0 0 18px; font-weight: 700; }
.lead { color: var(--muted); font-size: 17px; max-width: 30em; margin: 12px auto 8px; line-height: 1.5; font-weight: 700; }

/* ------------------------------- Mascot ---------------------------------- */
.dc-mascot { display: block; }
.hero-mascot { margin: 6px auto 2px; filter: drop-shadow(0 10px 18px rgba(45, 70, 20, 0.18)); }
.wordmark { font-family: var(--font-display); font-size: 58px; font-weight: 700; letter-spacing: 1px; margin: 8px 0 0; }
.wordmark-sub { color: var(--muted); font-weight: 800; letter-spacing: 2px; font-size: 13px; }

.dc-bob { animation: bob 3.4s ease-in-out infinite; transform-box: view-box; transform-origin: center; }
.dc-eyes { animation: look 5s ease-in-out infinite; transform-box: view-box; transform-origin: center; }
.dc-eye { animation: blink 4.2s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@keyframes look {
  0%,18% { transform: translate(0,0); } 25%,38% { transform: translate(5px,-2px); }
  45%,58% { transform: translate(-5px,1px); } 65%,78% { transform: translate(0,3px); } 85%,100% { transform: translate(0,0); }
}
@keyframes blink { 0%,92%,100% { transform: scaleY(1); } 95% { transform: scaleY(0.12); } }

/* Glitch on the DECODED wordmark */
.wordmark.glitch { position: relative; animation: glitch-jitter 3.2s steps(2) infinite; }
.wordmark.glitch::before, .wordmark.glitch::after {
  content: attr(data-text); position: absolute; top: 0; left: 0; right: 0;
  text-align: center; letter-spacing: inherit; overflow: hidden; pointer-events: none;
}
.wordmark.glitch::before { color: var(--cyan); text-shadow: -2px 0 var(--cyan); animation: glitch-slice-1 2.6s infinite linear alternate-reverse; }
.wordmark.glitch::after { color: var(--coral); text-shadow: 2px 0 var(--coral); animation: glitch-slice-2 3.4s infinite linear alternate-reverse; }
@keyframes glitch-jitter { 0%,92%,100% { transform: translate(0,0); } 93% { transform: translate(-2px,1px); } 95% { transform: translate(2px,-1px); } 97% { transform: translate(-1px,0); } }
@keyframes glitch-slice-1 {
  0% { clip-path: inset(0 0 82% 0); transform: translate(-3px,-1px); } 15% { clip-path: inset(38% 0 40% 0); transform: translate(3px,1px); }
  30% { clip-path: inset(70% 0 8% 0); transform: translate(-2px,0); } 45% { clip-path: inset(12% 0 68% 0); transform: translate(2px,-1px); }
  60% { clip-path: inset(52% 0 30% 0); transform: translate(-3px,1px); } 75% { clip-path: inset(24% 0 60% 0); transform: translate(1px,0); }
  100% { clip-path: inset(80% 0 4% 0); transform: translate(-2px,1px); }
}
@keyframes glitch-slice-2 {
  0% { clip-path: inset(66% 0 12% 0); transform: translate(3px,1px); } 15% { clip-path: inset(18% 0 62% 0); transform: translate(-3px,-1px); }
  30% { clip-path: inset(46% 0 34% 0); transform: translate(2px,1px); } 45% { clip-path: inset(80% 0 6% 0); transform: translate(-2px,0); }
  60% { clip-path: inset(30% 0 54% 0); transform: translate(3px,-1px); } 75% { clip-path: inset(60% 0 22% 0); transform: translate(-1px,1px); }
  100% { clip-path: inset(8% 0 78% 0); transform: translate(2px,0); }
}

/* ---------------------------- Guide picker ------------------------------- */
.guide-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 20px; }
.guide-card {
  background: var(--panel); border: 3px solid var(--border); border-radius: var(--radius);
  padding: 18px 14px; cursor: pointer; text-align: center; color: var(--text); font-family: var(--font);
  box-shadow: var(--shadow-card);
  transition: border-color .15s ease, transform .12s var(--bounce), box-shadow .15s ease;
}
.guide-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-pop); }
.guide-card.selected { border-color: var(--green); background: color-mix(in srgb, var(--green) 8%, var(--panel)); }
.guide-mascot { min-height: 140px; display: flex; align-items: center; justify-content: center; }
.guide-name { font-family: var(--font-display); font-size: 24px; font-weight: 700; margin-top: 6px; }
.guide-pers { color: var(--muted); font-size: 14px; margin-top: 4px; line-height: 1.4; font-weight: 700; }

/* ------------------------------ Home map --------------------------------- */
.home-hero {
  display: flex; align-items: center; gap: 12px;
  background: var(--panel); border: 2px solid var(--border); border-radius: var(--radius);
  padding: 14px; margin: 8px 0 16px; box-shadow: var(--shadow-card);
}
.hero-mascot.small { flex: 0 0 auto; width: 100px; }
.speech {
  position: relative; background: var(--panel-2); border: 2px solid var(--border);
  border-radius: 16px; padding: 12px 14px; font-size: 15px; line-height: 1.45; font-weight: 700;
}
.speech::before {
  content: ""; position: absolute; left: -9px; top: 22px; width: 16px; height: 16px;
  background: var(--panel-2); border-left: 2px solid var(--border); border-bottom: 2px solid var(--border);
  transform: rotate(45deg);
}

.xp-panel { background: var(--panel); border: 2px solid var(--border); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow-card); }
.xp-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; gap: 8px; }
.rank-pill {
  background: color-mix(in srgb, var(--lime) 16%, var(--panel));
  border: 2px solid var(--lime-deep); color: var(--green-deep);
  border-radius: 999px; padding: 4px 14px; font-family: var(--font-display); font-weight: 700; font-size: 14px; letter-spacing: 0.5px;
}
:root[data-theme="dark"] .rank-pill { color: var(--lime); }
.xp-score { color: var(--muted); font-size: 14px; font-weight: 800; }

.meter-track { background: var(--panel-2); border: 2px solid var(--border); border-radius: 999px; height: 18px; overflow: hidden; }
.meter-fill { display: block; height: 100%; background: var(--grad); border-radius: 999px; transition: width .7s var(--bounce); position: relative; overflow: hidden; }
.meter-fill::after {
  content: ""; position: absolute; inset: 0; border-radius: 999px;
  background: linear-gradient(180deg, rgba(255,255,255,.45), rgba(255,255,255,0) 55%);
}

.home-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 16px 0; }

.chapter-title { font-family: var(--font-display); font-size: 15px; letter-spacing: 0.5px; text-transform: uppercase; color: var(--muted); margin: 22px 0 10px; font-weight: 600; }

.level-list { display: flex; flex-direction: column; gap: 12px; }
.level-row {
  display: flex; align-items: center; gap: 12px; width: 100%; text-align: left;
  background: var(--panel); border: 2px solid var(--border); border-radius: var(--radius-sm);
  padding: 12px 14px; color: var(--text); font-family: var(--font); cursor: pointer;
  box-shadow: 0 4px 0 var(--border-strong);
  transition: transform .1s var(--bounce), box-shadow .1s ease, border-color .15s ease;
}
.level-row.open:hover { transform: translateY(-2px); border-color: var(--accent, var(--green)); }
.level-row.open:active { transform: translateY(4px); box-shadow: 0 0 0 var(--border-strong); }
.level-row.locked { opacity: 0.55; cursor: not-allowed; box-shadow: none; }
.level-row.done { border-color: color-mix(in srgb, var(--accent, var(--green)) 45%, var(--border)); }
.lv-num {
  flex: 0 0 auto; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
  background: var(--panel-2); border: 2px solid var(--border); border-radius: 14px;
  font-family: var(--font-display); font-weight: 700; font-size: 18px; color: var(--accent, var(--text));
}
.level-row.open .lv-num { background: color-mix(in srgb, var(--accent, var(--green)) 16%, var(--panel)); border-color: var(--accent, var(--green)); }
.level-row.done .lv-num { background: var(--accent, var(--green)); color: #fff; border-color: transparent; }
.lv-main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.lv-title { font-family: var(--font-display); font-weight: 600; font-size: 17px; }
.lv-tag { color: var(--muted); font-size: 13px; font-weight: 700; }
.lv-state { flex: 0 0 auto; display: inline-flex; align-items: center; gap: 5px; font-size: 13px; font-weight: 800; color: var(--muted); white-space: nowrap; }
.level-row.open .lv-state { color: var(--accent, var(--green)); }
.level-row.done .lv-state { color: var(--green-deep); }
:root[data-theme="dark"] .level-row.done .lv-state { color: var(--green); }

/* ------------------------------- Level ----------------------------------- */
.level-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 6px; }
.level-counter { color: var(--muted); font-size: 14px; font-weight: 800; }
.level-title { font-family: var(--font-display); font-weight: 700; font-size: 27px; margin: 4px 0 14px; text-wrap: balance; }
.guide-line { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.gl-mascot { flex: 0 0 auto; width: 44px; }
.gl-text { background: var(--panel); border: 2px solid var(--border); border-radius: 14px; padding: 10px 14px; font-size: 15px; line-height: 1.4; font-weight: 700; box-shadow: var(--shadow-card); }
.howto {
  display: flex; align-items: center; gap: 8px;
  background: color-mix(in srgb, var(--lime) 18%, var(--panel));
  border: 2px solid var(--lime-deep); color: var(--text);
  border-radius: var(--radius-sm); padding: 12px 14px; font-weight: 800; font-size: 15px; margin-bottom: 16px;
}

/* ------------------------------- Quiz ------------------------------------ */
.quiz-count { color: var(--muted); font-size: 13px; font-weight: 800; letter-spacing: 0.5px; text-transform: uppercase; margin-bottom: 12px; }
.quiz-prompt { font-family: var(--font-display); font-size: 21px; font-weight: 600; line-height: 1.35; margin-bottom: 16px; display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; }
.big-icon { line-height: 0; color: var(--green); display: inline-flex; }
.prompt-label { font-size: 21px; }
.statement { font-family: var(--font-display); font-size: 21px; font-weight: 600; line-height: 1.35; text-align: center; }

.options { display: grid; gap: 12px; }
.options.word-options { grid-template-columns: 1fr 1fr; }
.option-btn {
  display: flex; align-items: center; gap: 12px; width: 100%;
  background: var(--panel); border: 2px solid var(--border); border-radius: var(--radius-sm);
  padding: 15px 16px; color: var(--text); font-family: var(--font); font-size: 16px; font-weight: 800; cursor: pointer;
  box-shadow: 0 4px 0 var(--border-strong);
  transition: transform .08s var(--bounce), box-shadow .1s ease, border-color .15s ease, background .15s ease;
}
.option-btn:hover:not(:disabled) { border-color: var(--cyan); }
.option-btn:active:not(:disabled) { transform: translateY(4px); box-shadow: 0 0 0 var(--border-strong); }
.option-btn:disabled { cursor: default; }
.option-btn.correct { border-color: var(--green); background: color-mix(in srgb, var(--green) 12%, var(--panel)); box-shadow: 0 4px 0 var(--green-deep); }
.option-btn.wrong { border-color: var(--coral); background: color-mix(in srgb, var(--coral) 12%, var(--panel)); box-shadow: 0 4px 0 var(--coral-deep); }
.word-btn { justify-content: center; font-family: var(--font-display); font-weight: 600; font-size: 18px; }
.opt-icon { display: inline-flex; color: var(--green); flex: 0 0 auto; }
.opt-icon .ic { width: 22px; height: 22px; }

.feedback { margin-top: 16px; }
.feedback.show { animation: popIn .3s var(--bounce); }
.fb-head { font-family: var(--font-display); font-weight: 700; font-size: 17px; margin-bottom: 4px; display: flex; align-items: center; gap: 7px; }
.feedback.good .fb-head { color: var(--green-deep); }
.feedback.bad .fb-head { color: var(--coral-deep); }
:root[data-theme="dark"] .feedback.good .fb-head { color: var(--green); }
.fb-why { color: var(--muted); font-size: 15px; line-height: 1.45; font-weight: 700; }
.next-btn { margin-top: 16px; width: 100%; }

/* Probability bars (level 3) */
.prob-bars { margin-top: 16px; display: flex; flex-direction: column; gap: 9px; }
.prob-row { display: grid; grid-template-columns: 90px 1fr 46px; align-items: center; gap: 8px; font-size: 14px; font-weight: 800; }
.prob-word { font-weight: 800; }
.prob-row.top .prob-word { color: var(--green-deep); }
:root[data-theme="dark"] .prob-row.top .prob-word { color: var(--green); }
.prob-track { background: var(--panel-2); border: 2px solid var(--border); border-radius: 999px; height: 16px; overflow: hidden; }
.prob-fill { display: block; height: 100%; background: var(--cyan); border-radius: 999px; transition: width .6s var(--bounce); }
.prob-row.top .prob-fill { background: var(--grad); }
.prob-pct { text-align: right; color: var(--muted); font-weight: 800; }
.blank { color: var(--green-deep); border-bottom: 3px dashed var(--green); padding: 0 6px; }
.you-pick { color: var(--cyan-deep); font-weight: 800; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; margin-left: 4px; }

/* Train model test grid (level 2) */
.test-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 6px 0; }
.test-cell { display: flex; flex-direction: column; align-items: center; gap: 4px; background: var(--panel-2); border: 2px solid var(--border); border-radius: var(--radius-sm); padding: 12px; }
.test-cell.good { border-color: var(--green); }
.test-cell.bad { border-color: var(--coral); }
.test-cell .big-icon { color: var(--green-deep); }
:root[data-theme="dark"] .test-cell .big-icon { color: var(--lime); }
.test-pred { font-size: 13px; color: var(--muted); text-align: center; font-weight: 800; }
.test-mark { line-height: 0; }
.test-cell.good .test-mark { color: var(--green-deep); }
.test-cell.bad .test-mark { color: var(--coral-deep); }

/* Prompt upgrade (level 5) */
.prompt-preview { background: var(--panel-2); border: 2px solid var(--border); border-radius: var(--radius-sm); padding: 14px; font-family: "SFMono-Regular", Consolas, monospace; font-size: 14px; line-height: 1.6; min-height: 60px; margin-bottom: 14px; font-weight: 600; }
.pp-base { display: block; color: var(--text); }
.pp-add { display: block; color: var(--green-deep); animation: popIn .25s var(--bounce); }
:root[data-theme="dark"] .pp-add { color: var(--lime); }
.meter-wrap { margin-bottom: 16px; }
.meter-label { display: flex; justify-content: space-between; font-size: 13px; color: var(--muted); font-weight: 800; margin-bottom: 6px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--panel); border: 2px solid var(--border); border-radius: 999px; padding: 10px 16px;
  color: var(--text); font-family: var(--font); font-size: 15px; font-weight: 800; cursor: pointer;
  box-shadow: 0 3px 0 var(--border-strong);
  transition: transform .08s var(--bounce), box-shadow .1s ease, border-color .15s ease, background .15s ease;
}
.chip:hover { border-color: var(--cyan); }
.chip:active { transform: translateY(3px); box-shadow: 0 0 0 var(--border-strong); }
.chip.on { background: color-mix(in srgb, var(--green) 14%, var(--panel)); border-color: var(--green); box-shadow: 0 3px 0 var(--green-deep); }
.chip-icon { display: inline-flex; color: var(--green); }
.chip-icon .ic { width: 18px; height: 18px; }

/* Agent tools (level 6) */
.goal-box { display: flex; align-items: center; gap: 9px; background: color-mix(in srgb, var(--cyan) 12%, var(--panel)); border: 2px solid var(--cyan); border-radius: var(--radius-sm); padding: 14px; font-size: 17px; font-weight: 800; margin-bottom: 16px; }
.goal-icon { display: inline-flex; color: var(--cyan-deep); }
.tool-hint { color: var(--muted); font-size: 14px; margin-bottom: 10px; font-weight: 700; }
.tool-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.tool-btn {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  background: var(--panel); border: 2px solid var(--border); border-radius: var(--radius-sm); padding: 16px;
  color: var(--text); font-family: var(--font); font-size: 15px; font-weight: 800; cursor: pointer;
  box-shadow: 0 4px 0 var(--border-strong);
  transition: transform .08s var(--bounce), box-shadow .1s ease, border-color .15s ease, background .15s ease;
}
.tool-btn:active { transform: translateY(4px); box-shadow: 0 0 0 var(--border-strong); }
.tool-btn.on { border-color: var(--green); background: color-mix(in srgb, var(--green) 14%, var(--panel)); box-shadow: 0 4px 0 var(--green-deep); }
.tool-icon { display: inline-flex; color: var(--green); }
.run-btn { width: 100%; }
.agent-log { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }
.log-line { display: flex; align-items: center; gap: 6px; font-family: "SFMono-Regular", Consolas, monospace; font-size: 14px; font-weight: 600; padding: 10px 12px; border-radius: 12px; border: 2px solid var(--border); background: var(--panel-2); }
.log-line.ok { border-color: color-mix(in srgb, var(--green) 50%, var(--border)); }
.log-line.stall { border-color: var(--coral); color: var(--coral-deep); }
.log-mark { display: inline-flex; }
.log-line.ok .log-mark { color: var(--green-deep); }
.log-line.stall .log-mark { color: var(--coral-deep); }
:root[data-theme="dark"] .log-line.ok .log-mark { color: var(--green); }

/* Order steps (level 7) */
.order-hint { color: var(--muted); font-size: 14px; margin-bottom: 12px; font-weight: 700; }
.order-slots { list-style: none; margin: 0 0 14px; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.order-slot { display: flex; align-items: center; gap: 10px; background: var(--panel-2); border: 2px dashed var(--border-strong); border-radius: var(--radius-sm); padding: 12px 14px; min-height: 54px; font-size: 15px; font-weight: 800; }
.order-slot.filled { border-style: solid; }
.order-slot.good { border-color: var(--green); background: color-mix(in srgb, var(--green) 12%, var(--panel)); }
.order-slot.bad { border-color: var(--coral); background: color-mix(in srgb, var(--coral) 12%, var(--panel)); }
.slot-num { flex: 0 0 auto; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; background: var(--panel); border: 2px solid var(--border); border-radius: 999px; font-family: var(--font-display); font-weight: 700; font-size: 14px; }
.slot-empty { color: var(--muted); font-weight: 700; }
.order-pool { display: flex; flex-direction: column; gap: 10px; }
.step-chip {
  display: flex; align-items: center; gap: 10px; text-align: left;
  background: var(--panel); border: 2px solid var(--border); border-radius: var(--radius-sm); padding: 12px 14px;
  color: var(--text); font-family: var(--font); font-size: 15px; font-weight: 800; cursor: pointer;
  box-shadow: 0 4px 0 var(--border-strong);
  transition: transform .08s var(--bounce), box-shadow .1s ease, border-color .15s ease;
}
.step-chip:hover { border-color: var(--cyan); }
.step-chip:active { transform: translateY(4px); box-shadow: 0 0 0 var(--border-strong); }
.step-icon { display: inline-flex; color: var(--green); flex: 0 0 auto; }
.order-actions { margin-top: 12px; }

/* Spot the error (tap the wrong phrases in a paragraph) */
.spot-para { font-size: 18px; line-height: 2.1; font-weight: 700; margin: 4px 0 14px; }
.spot-claim {
  display: inline; cursor: pointer; padding: 2px 6px; border-radius: 8px;
  background: var(--panel-2); border: 2px solid var(--border); box-decoration-break: clone; -webkit-box-decoration-break: clone;
  transition: border-color .15s ease, background .15s ease;
}
.spot-claim:hover:not(.tapped) { border-color: var(--cyan); }
.spot-claim.tapped { cursor: default; }
.spot-claim.err-correct { background: color-mix(in srgb, var(--green) 18%, var(--panel)); border-color: var(--green); color: var(--green-deep); }
.spot-claim.err-true { background: color-mix(in srgb, var(--cyan) 16%, var(--panel)); border-color: var(--cyan); }
.spot-claim.err-missed { background: color-mix(in srgb, var(--coral) 16%, var(--panel)); border-color: var(--coral); color: var(--coral-deep); }
:root[data-theme="dark"] .spot-claim.err-correct { color: var(--green); }
.spot-counter { color: var(--muted); font-size: 14px; font-weight: 800; margin-bottom: 10px; }
.spot-done { width: 100%; margin-top: 6px; }

/* Audit the training data (flag skewed rows) */
.audit-table { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.audit-row { display: grid; grid-template-columns: 2fr 1.3fr 52px; align-items: center; gap: 8px; width: 100%; text-align: left; background: var(--panel); border: 2px solid var(--border); border-radius: 12px; padding: 11px 12px; color: var(--text); font-family: var(--font); font-weight: 700; font-size: 14px; cursor: pointer; transition: border-color .15s ease, background .15s ease; }
.audit-row.audit-head { background: var(--panel-2); cursor: default; font-weight: 800; color: var(--muted); text-transform: uppercase; font-size: 12px; letter-spacing: 0.5px; }
.audit-cell { min-width: 0; overflow-wrap: anywhere; }
.audit-flagcell { text-align: center; justify-self: center; }
.audit-flag { display: inline-flex; color: var(--border-strong); }
.audit-row.flagged { border-color: var(--amber); background: color-mix(in srgb, var(--amber) 12%, var(--panel)); }
.audit-row.flagged .audit-flag { color: var(--amber-deep); }
.audit-row.good { border-color: var(--green); background: color-mix(in srgb, var(--green) 12%, var(--panel)); }
.audit-row.good .audit-flag { color: var(--green-deep); }
.audit-row.bad { border-color: var(--coral); background: color-mix(in srgb, var(--coral) 12%, var(--panel)); }
.audit-row.missed { border-color: var(--coral-deep); border-style: dashed; }

/* Set the confidence threshold (slider) */
.threshold-readout { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.thr-stat { background: var(--panel-2); border: 2px solid var(--border); border-radius: var(--radius-sm); padding: 14px 8px; text-align: center; }
.thr-num { display: block; font-family: var(--font-display); font-weight: 700; font-size: 24px; color: var(--green-deep); }
:root[data-theme="dark"] .thr-num { color: var(--lime); }
.thr-lab { display: inline-flex; align-items: center; gap: 6px; justify-content: center; color: var(--muted); font-size: 12px; font-weight: 800; margin-top: 4px; }
.thr-lab .ic { width: 15px; height: 15px; }
.threshold-wrap { display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
.threshold-val { font-family: var(--font-display); font-weight: 700; font-size: 20px; min-width: 56px; text-align: right; }
.threshold-slider { flex: 1; -webkit-appearance: none; appearance: none; height: 14px; border-radius: 999px; background: var(--panel-2); border: 2px solid var(--border); outline: none; }
.threshold-slider::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 30px; height: 30px; border-radius: 999px; background: var(--green); border: 3px solid var(--panel); box-shadow: 0 3px 0 var(--green-deep); cursor: pointer; }
.threshold-slider::-moz-range-thumb { width: 28px; height: 28px; border-radius: 999px; background: var(--green); border: 3px solid var(--panel); box-shadow: 0 3px 0 var(--green-deep); cursor: pointer; }
.threshold-slider:disabled { opacity: 0.7; }

/* ------------------------------- Reveal ---------------------------------- */
.reveal-badge { display: inline-flex; align-items: center; background: var(--green); color: #fff; font-family: var(--font-display); font-weight: 700; border-radius: 999px; padding: 7px 16px; font-size: 14px; margin: 6px 0; box-shadow: 0 4px 0 var(--green-deep); }
.reveal-badge.fail { background: var(--coral); box-shadow: 0 4px 0 var(--coral-deep); }
.reveal-card .reveal-title, .reveal-title { font-family: var(--font-display); display: flex; align-items: center; gap: 8px; font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.reveal-title .ui-ic { color: var(--amber-deep); }
.reveal-body { color: var(--text); line-height: 1.55; font-size: 16px; margin: 0; font-weight: 700; }
.concept-card { border-color: var(--green); background: color-mix(in srgb, var(--green) 7%, var(--panel)); }
.concept-tag { display: flex; align-items: center; gap: 7px; color: var(--green-deep); font-family: var(--font-display); font-weight: 600; font-size: 13px; letter-spacing: 0.5px; text-transform: uppercase; margin-bottom: 8px; }
:root[data-theme="dark"] .concept-tag { color: var(--lime); }
.concept-tag .ic { color: var(--amber-deep); }
.concept-term { display: flex; align-items: center; gap: 8px; font-family: var(--font-display); font-size: 21px; font-weight: 700; margin-bottom: 6px; }
.concept-card .concept-term { color: var(--text); }
.concept-card .concept-term .ic { color: var(--green); }
.concept-def { color: var(--muted); line-height: 1.5; font-size: 15px; font-weight: 700; }
.reveal-nav { display: flex; gap: 12px; margin-top: 18px; flex-wrap: wrap; }
.reveal-nav .btn { flex: 1; min-width: 150px; }

/* Assignment card */
.assignment-card { border-color: var(--amber); background: color-mix(in srgb, var(--amber) 10%, var(--panel)); }
.assignment-tag { display: flex; align-items: center; gap: 7px; color: var(--amber-deep); font-family: var(--font-display); font-weight: 600; font-size: 13px; letter-spacing: 0.5px; text-transform: uppercase; margin-bottom: 8px; }
.assignment-tag .ic { color: var(--amber-deep); }
.assignment-body { color: var(--text); line-height: 1.55; font-size: 16px; margin: 0; font-weight: 700; }

/* Deep Dive video card */
.deep-dive-card { text-align: center; }
.deep-dive-tag { display: flex; align-items: center; justify-content: center; gap: 7px; color: var(--cyan-deep); font-family: var(--font-display); font-weight: 600; font-size: 13px; letter-spacing: 0.5px; text-transform: uppercase; margin-bottom: 14px; }
.deep-dive-tag .ic { color: var(--cyan-deep); }
:root[data-theme="dark"] .deep-dive-tag, :root[data-theme="dark"] .deep-dive-tag .ic { color: var(--cyan); }
.video-link { display: block; text-decoration: none; color: inherit; border-radius: var(--radius-sm); transition: transform .12s var(--bounce); }
.video-link:hover { transform: translateY(-2px); }
.video-link:hover .thumb { border-color: var(--cyan); }
.thumb { display: block; position: relative; width: 100%; max-width: 420px; margin: 0 auto; aspect-ratio: 16 / 9; border-radius: var(--radius-sm); overflow: hidden; border: 2px solid var(--border); box-shadow: var(--shadow-card); background: var(--panel-2); transition: border-color .15s ease; }
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.play-overlay { position: absolute; inset: 0; margin: auto; width: 56px; height: 56px; border-radius: 999px; background: rgba(255, 0, 0, 0.9); color: #fff; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 16px rgba(0,0,0,0.3); }
.play-overlay .ic { width: 26px; height: 26px; margin-left: 3px; }
.video-title { display: block; font-family: var(--font-display); font-weight: 600; font-size: 16px; margin-top: 12px; color: var(--text); text-wrap: balance; }
.video-meta { display: block; color: var(--muted); font-size: 13px; font-weight: 700; margin-top: 4px; }

/* Failed a level */
.fail-card { border-color: var(--coral); background: color-mix(in srgb, var(--coral) 8%, var(--panel)); }
.fail-title { display: flex; align-items: center; gap: 8px; font-family: var(--font-display); font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.fail-title .ui-ic { color: var(--coral-deep); }
.fail-body { color: var(--text); line-height: 1.55; font-size: 16px; margin: 0; font-weight: 700; }

/* CTA */
.cta-card { border-color: var(--cyan); background: color-mix(in srgb, var(--cyan) 8%, var(--panel)); text-align: center; }
.cta-text { font-family: var(--font-display); font-size: 19px; font-weight: 600; line-height: 1.45; margin: 4px 0 16px; }

/* ----------------------------- Certificate ------------------------------- */
.cert-card { text-align: center; border-color: var(--lime-deep); background: linear-gradient(180deg, color-mix(in srgb, var(--lime) 12%, var(--panel)), var(--panel)); }
.cert-mascot { margin-bottom: 4px; }
.cert-title { font-family: var(--font-display); font-size: 32px; font-weight: 700; margin: 6px 0 16px; text-wrap: balance; }
.cert-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.cert-stat { background: var(--panel); border: 2px solid var(--border); border-radius: var(--radius-sm); padding: 14px 6px; box-shadow: var(--shadow-card); }
.cs-num { display: block; font-family: var(--font-display); font-size: 24px; font-weight: 700; color: var(--green-deep); }
:root[data-theme="dark"] .cs-num { color: var(--lime); }
.cs-lab { display: inline-flex; align-items: center; justify-content: center; gap: 5px; color: var(--muted); font-size: 12px; font-weight: 800; margin-top: 4px; }

.concept-pills { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 6px; }
.concept-pill { display: inline-flex; align-items: center; gap: 6px; background: var(--panel); border: 2px solid var(--border); border-radius: 999px; padding: 7px 13px; font-size: 13px; font-weight: 800; box-shadow: var(--shadow-card); }
.concept-pill .ic { color: var(--green); }

.concept-deck { display: flex; flex-direction: column; gap: 12px; margin-top: 8px; }
.mini-concept { margin: 0; }
.mini-concept .concept-term { font-size: 18px; }

.block-title { display: flex; align-items: center; gap: 8px; font-family: var(--font-display); font-size: 19px; font-weight: 700; margin: 0 0 6px; }
.block-sub { color: var(--muted); font-size: 14px; margin: 0 0 12px; font-weight: 700; }

/* Share */
.share-preview { width: 100%; max-width: 340px; aspect-ratio: 1/1; display: block; margin: 6px auto 14px; border: 2px solid var(--border); border-radius: var(--radius-sm); background: #0B0B0C; }
.share-actions { display: flex; gap: 12px; }
.share-actions .btn { flex: 1; }

/* Email */
.email-form { display: flex; gap: 10px; flex-wrap: wrap; }
.email-input, .lb-initials-input {
  flex: 1; min-width: 180px; background: var(--panel-2); border: 2px solid var(--border); border-radius: var(--radius-sm);
  padding: 13px 15px; color: var(--text); font-family: var(--font); font-size: 16px; font-weight: 700;
}
.email-input:focus, .lb-initials-input:focus { border-color: var(--green); outline: none; }
.email-msg { margin-top: 10px; font-size: 14px; font-weight: 800; }
.email-msg.good { color: var(--green-deep); }
.email-msg.bad { color: var(--coral-deep); }
:root[data-theme="dark"] .email-msg.good { color: var(--green); }

/* ---------------------------- Leaderboard -------------------------------- */
.lb-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }
.lb-row { display: grid; grid-template-columns: 46px 1fr auto; align-items: center; gap: 10px; background: var(--panel); border: 2px solid var(--border); border-radius: var(--radius-sm); padding: 13px 15px; box-shadow: var(--shadow-card); }
.lb-row.top { border-color: color-mix(in srgb, var(--lime) 50%, var(--border)); }
.lb-row.top-1 { border-color: var(--amber); background: color-mix(in srgb, var(--amber) 10%, var(--panel)); }
.lb-row.top-2 { border-color: #C9CDBE; }
.lb-row.top-3 { border-color: var(--amber-deep); }
.lb-row.you { border-color: var(--cyan); }
.lb-rank { display: inline-flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 18px; font-weight: 700; }
.lb-rank .ic { width: 22px; height: 22px; }
.lb-row.top-1 .lb-rank { color: var(--amber-deep); }
.lb-row.top-2 .lb-rank { color: #9AA08A; }
.lb-row.top-3 .lb-rank { color: var(--amber-deep); }
.lb-initials { font-weight: 800; }
.lb-score { font-family: var(--font-display); font-weight: 700; color: var(--green-deep); }
:root[data-theme="dark"] .lb-score { color: var(--lime); }
.lb-add { margin-top: 6px; }
.lb-form { display: flex; gap: 10px; margin-top: 8px; }
.lb-initials-input { text-transform: uppercase; letter-spacing: 3px; text-align: center; max-width: 120px; flex: 0 0 auto; font-family: var(--font-display); font-weight: 700; }
/* Shared-leaderboard display name: normal casing, full width */
.lb-initials-input.lb-name-input { text-transform: none; letter-spacing: 0; text-align: left; max-width: none; flex: 1 1 auto; font-family: var(--font); }
.auth-google-btn { width: 100%; max-width: 320px; }

/* ------------------------------- Icons ----------------------------------- */
.ic { display: inline-block; vertical-align: -0.15em; }
.ui-ic { display: inline-flex; align-items: center; }
.ui-ic .ic { width: 1.1em; height: 1.1em; }
.hud-item, .rank-pill, .lv-state, .concept-tag, .concept-term, .cs-lab, .block-title, .assignment-tag, .reveal-title, .goal-box { display: inline-flex; align-items: center; gap: 7px; }
.concept-term, .reveal-title, .block-title { display: flex; }
.cert-stat .cs-lab { justify-content: center; }
.lb-rank { display: inline-flex; align-items: center; justify-content: center; }
.btn .ui-ic .ic, .btn-ic .ic { width: 1.15em; height: 1.15em; }
.btn-ic { display: inline-flex; }
.howto-ic { display: inline-flex; color: var(--green-deep); }
.howto-ic .ic { width: 20px; height: 20px; }
.fb-mark { display: inline-flex; }
.fb-mark .ic { width: 20px; height: 20px; }
.feedback.good .fb-mark { color: var(--green-deep); }
.feedback.bad .fb-mark { color: var(--coral-deep); }
:root[data-theme="dark"] .feedback.good .fb-mark { color: var(--green); }
.rank-pill .ic { width: 16px; height: 16px; }
.big-icon .ic { width: auto; height: auto; }

/* ----------------------------- Sign in ----------------------------------- */
.auth-btn-wrap { display: flex; justify-content: center; min-height: 48px; margin: 10px 0 6px; }
.auth-loading { color: var(--muted); font-size: 14px; padding: 12px 0; font-weight: 700; }
.auth-note { color: var(--muted); font-size: 13px; max-width: 30em; margin: 6px auto 0; line-height: 1.5; font-weight: 700; }
.auth-error { color: var(--amber-deep); background: color-mix(in srgb, var(--amber) 12%, var(--panel)); border: 2px solid var(--amber); border-radius: var(--radius-sm); padding: 12px 14px; font-size: 14px; max-width: 30em; line-height: 1.5; font-weight: 700; }

/* ---------------------------- Account chip ------------------------------- */
.account { display: flex; align-items: center; }
.account[hidden] { display: none; }
.account-chip { display: inline-flex; align-items: center; gap: 8px; background: var(--panel); border: 2px solid var(--border); border-radius: 999px; padding: 4px 12px 4px 4px; color: var(--text); font-family: var(--font); font-weight: 800; font-size: 14px; cursor: pointer; box-shadow: var(--shadow-card); transition: border-color .15s ease, transform .12s var(--bounce); }
.account-chip:hover { border-color: var(--green); transform: translateY(-1px); }
.account-avatar { width: 28px; height: 28px; border-radius: 999px; object-fit: cover; flex: 0 0 auto; }
.account-initial { display: inline-flex; align-items: center; justify-content: center; background: var(--green); color: #fff; font-family: var(--font-display); font-weight: 700; }
.account-name { max-width: 90px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (max-width: 520px) { .account-name { display: none; } .account-chip { padding: 4px; } }

/* ------------------------- Top bar toggles ------------------------------- */
.topright { display: flex; align-items: center; gap: 8px; flex: 0 0 auto; }
.pill-toggle { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; flex: 0 0 auto; background: var(--panel); border: 2px solid var(--border); border-radius: 14px; color: var(--amber-deep); cursor: pointer; box-shadow: var(--shadow-card); transition: border-color .15s ease, transform .12s var(--bounce); }
.pill-toggle:hover { border-color: var(--green); transform: translateY(-1px); }
.pill-toggle .ic { width: 20px; height: 20px; }
#music-toggle { color: var(--green-deep); }
#music-toggle.is-off { color: var(--muted); }
:root[data-theme="dark"] .pill-toggle { color: var(--lime); }
:root[data-theme="dark"] #music-toggle.is-off { color: var(--muted); }

/* Guide encouragement between levels */
.encourage-bubble { max-width: 30em; margin-top: 6px; font-size: 16px; text-align: center; border-bottom: 3px solid var(--gc, var(--green)); }
.encourage-bubble::before { display: none; }

/* ------------------------------ Animations ------------------------------- */
.fade-up { animation: fadeUp .4s var(--bounce) both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
.pop-in { animation: popIn .38s var(--bounce) both; }
@keyframes popIn { 0% { opacity: 0; transform: scale(0.9); } 100% { opacity: 1; transform: scale(1); } }

.points-burst { position: fixed; z-index: 50; transform: translate(-50%, -50%); font-family: var(--font-display); color: var(--green); font-weight: 700; font-size: 30px; pointer-events: none; text-shadow: 0 2px 0 var(--green-deep), 0 3px 10px rgba(0,0,0,0.2); animation: floatUp 1s ease-out forwards; }
@keyframes floatUp { 0% { opacity: 0; transform: translate(-50%,-40%) scale(0.7) rotate(-6deg); } 20% { opacity: 1; transform: translate(-50%,-72%) scale(1.15) rotate(3deg); } 100% { opacity: 0; transform: translate(-50%,-150%) scale(1) rotate(0); } }

.confetti-layer { position: fixed; inset: 0; z-index: 45; pointer-events: none; overflow: hidden; }
.confetti-bit { position: absolute; top: -20px; border-radius: 3px; animation-name: fall; animation-timing-function: linear; animation-iteration-count: 1; }
@keyframes fall { to { transform: translateY(110vh) rotate(540deg); opacity: 0.9; } }

/* -------------------------- Responsive tweaks ---------------------------- */
/* Keep the level counter and back button from ever colliding. */
.level-top { flex-wrap: wrap; }
.level-counter { flex: 0 0 auto; }
.level-top .link-btn { flex: 1 1 auto; min-width: 0; }

@media (max-width: 480px) {
  .topbar { padding: 12px 14px 8px; }
  .brand-word { font-size: 20px; }
  .wordmark { font-size: 44px; }
  .screen { padding: 8px 14px 44px; }
  .hud { padding: 0 14px 4px; }
  .screen-title { font-size: 25px; }
  .level-title { font-size: 24px; }
  .cert-stats { grid-template-columns: 1fr; }
  .cs-num { font-size: 22px; }
  .reveal-nav .btn { min-width: 130px; }
  .tool-grid, .test-grid, .threshold-readout { gap: 10px; }
  .audit-row { grid-template-columns: 1.8fr 1fr 44px; font-size: 13px; padding: 10px; }
  .spot-para { font-size: 17px; line-height: 2; }
}
@media (max-width: 360px) {
  .brand-word { display: none; }
  .wordmark { font-size: 38px; }
}

/* --------------------------- Reduced motion ------------------------------ */
@media (prefers-reduced-motion: reduce) {
  .dc-bob, .dc-eyes, .dc-eye { animation: none !important; }
  .bg-line { display: none; }
  .wordmark.glitch { animation: none !important; }
  .wordmark.glitch::before, .wordmark.glitch::after { display: none; }
  .fade-up, .pop-in, .points-burst, .confetti-bit { animation: none !important; }
  .points-burst { opacity: 1; }
  .btn:active, .option-btn:active, .chip:active, .tool-btn:active, .step-chip:active, .level-row.open:active { transform: none; }
  .guide-card:hover, .account-chip:hover, .pill-toggle:hover { transform: none; }
  .meter-fill, .prob-fill { transition: none; }
}