/* ==========================================================================
   Runbookly · System Design course ("the maze")
   Scoped under .ac-page: the game world keeps its own night palette whatever
   the site's theme, like a game's screen.
   ========================================================================== */

.ac-page, .ac-modal, .ac-term-card, .ac-toast, .ac-paywall {
  --ac-bg: #05070f;
  --ac-bg-2: #0b1220;
  --ac-panel: rgba(17, 26, 46, 0.72);
  --ac-panel-solid: #101a2d;
  --ac-panel-2: #16223a;
  --ac-line: rgba(148, 178, 255, 0.14);
  --ac-line-strong: rgba(148, 178, 255, 0.26);
  --ac-text: #e8f1ff;
  --ac-muted: #95a6c6;
  --ac-faint: #5d6f8f;
  --ac-cyan: #00e5ff;
  --ac-cyan-deep: #0891b2;
  --ac-violet: #a78bfa;
  --ac-green: #2ee6a6;
  --ac-amber: #ffc24b;
  --ac-red: #ff4d6d;
  --ac-gold: #ffd166;
  --ac-radius: 18px;
  --ac-display: "Epilogue", "IBM Plex Sans", system-ui, sans-serif;
  --ac-body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --ac-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}
.ac-page {
  background: var(--ac-bg);
  color: var(--ac-text);
  font-family: var(--ac-body);
  -webkit-font-smoothing: antialiased;
}
.ac-page *, .ac-page *::before, .ac-page *::after { box-sizing: border-box; }
.ac-noscript { padding: 40px; text-align: center; }
.ac-kicker.is-gold { color: var(--ac-gold); }
.ac-page a { color: inherit; }
.ac-sr-only { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.ac-kicker { margin: 0 0 6px; color: var(--ac-cyan); font: 700 11px/1.4 var(--ac-mono); letter-spacing: .14em; text-transform: uppercase; }

/* ------------------------------------------------------------- buttons */
.ac-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 10px 20px; border-radius: 14px; border: 1px solid transparent;
  font: 700 15px/1.2 var(--ac-body); letter-spacing: .01em; text-decoration: none; cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, opacity .2s ease;
  -webkit-tap-highlight-color: transparent;
}
.ac-btn:focus-visible { outline: 3px solid rgba(0, 229, 255, .6); outline-offset: 3px; }
.ac-btn:active { transform: translateY(2px); }
.ac-btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.ac-btn.is-primary {
  color: #03131a; background: linear-gradient(180deg, #5ff1ff 0%, #00d4ee 100%);
  box-shadow: 0 4px 0 #0891b2, 0 10px 30px rgba(0, 229, 255, .28);
}
.ac-btn.is-primary:hover:not(:disabled) { box-shadow: 0 4px 0 #0891b2, 0 14px 40px rgba(0, 229, 255, .45); transform: translateY(-1px); }
.ac-btn.is-primary:active:not(:disabled) { box-shadow: 0 1px 0 #0891b2, 0 6px 20px rgba(0, 229, 255, .3); transform: translateY(3px); }
.ac-btn.is-ghost { color: var(--ac-text); background: rgba(255,255,255,.04); border-color: var(--ac-line-strong); }
.ac-btn.is-ghost:hover { background: rgba(255,255,255,.08); border-color: rgba(0,229,255,.45); }
.ac-btn.is-gold { color: #1b1300; background: linear-gradient(180deg, #ffe08a, #ffbf3c); box-shadow: 0 4px 0 #b7791f, 0 10px 30px rgba(255, 191, 60, .25); }
.ac-btn.is-small { min-height: 36px; padding: 7px 14px; font-size: 13.5px; border-radius: 11px; }
.ac-btn.is-big { min-height: 54px; padding: 14px 28px; font-size: 16.5px; border-radius: 16px; }
.ac-btn.is-hidden, .is-hidden { display: none !important; }
.ac-icon-btn {
  display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 12px;
  color: var(--ac-muted); background: transparent; border: 0; cursor: pointer; transition: color .2s, background .2s;
}
.ac-icon-btn:hover { color: var(--ac-text); background: rgba(255,255,255,.06); }
.ac-icon-btn:focus-visible { outline: 3px solid rgba(0,229,255,.55); }

.ac-chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; font: 600 12px/1.3 var(--ac-body); color: var(--ac-cyan); background: rgba(0,229,255,.08); border: 1px solid rgba(0,229,255,.22); }
.ac-chip.is-recall { color: var(--ac-violet); background: rgba(167,139,250,.1); border-color: rgba(167,139,250,.3); }
.ac-chip.is-retry { color: var(--ac-amber); background: rgba(255,194,75,.1); border-color: rgba(255,194,75,.3); margin-bottom: 10px; }
.ac-chip.is-enterprise { color: var(--ac-green); background: rgba(46,230,166,.1); border-color: rgba(46,230,166,.3); }

/* ------------------------------------------------- glossary terms & card */
.ac-term {
  display: inline; padding: 0 1px; margin: 0; border: 0; background: none; color: inherit; font: inherit; cursor: help;
  text-decoration: underline dotted rgba(0, 229, 255, .8); text-decoration-thickness: 2px; text-underline-offset: 4px;
  border-radius: 4px; transition: background .2s, color .2s;
}
.ac-term:hover, .ac-term[aria-expanded="true"] { color: #8ff6ff; background: rgba(0,229,255,.08); }
.ac-term:focus-visible { outline: 2px solid var(--ac-cyan); outline-offset: 2px; }
.ac-term-card {
  position: absolute; z-index: 9000; padding: 16px 18px; border-radius: 16px; color: #e8f1ff;
  background: linear-gradient(160deg, rgba(23, 34, 60, .98), rgba(12, 19, 35, .98)); border: 1px solid rgba(0,229,255,.32);
  box-shadow: 0 24px 60px rgba(0,0,0,.55), 0 0 0 1px rgba(0,0,0,.4), 0 0 40px rgba(0,229,255,.12);
  opacity: 0; transform: translateY(-6px) scale(.98); transition: opacity .18s ease, transform .18s ease; font-family: "IBM Plex Sans", system-ui, sans-serif;
}
.ac-term-card.is-open { opacity: 1; transform: none; }
.ac-term-kicker { margin: 0; color: #00e5ff; font: 700 10px/1.4 "IBM Plex Mono", monospace; letter-spacing: .14em; text-transform: uppercase; }
.ac-term-name { margin: 2px 0 6px; font: 800 18px/1.25 "Epilogue", system-ui, sans-serif; }
.ac-term-def { margin: 0 0 8px; font-size: 14.5px; line-height: 1.55; color: #d7e3f8; }
.ac-term-example { margin: 0 0 8px; padding: 8px 10px; border-radius: 10px; font-size: 13.5px; line-height: 1.5; color: #b9c7e0; background: rgba(255,255,255,.04); }
.ac-term-example span:first-child { color: #ffc24b; font-weight: 700; }
.ac-term-more { color: #00e5ff; font-size: 13px; font-weight: 600; text-decoration: none; }
.ac-term-card code { font-family: "IBM Plex Mono", monospace; font-size: .92em; color: #ffd166; }

/* ------------------------------------------------------------- modals */
.ac-modal {
  position: fixed; inset: 0; z-index: 8000; display: grid; place-items: center; padding: 16px;
  background: rgba(2, 5, 12, .66); backdrop-filter: blur(6px); opacity: 0; transition: opacity .22s ease;
  font-family: "IBM Plex Sans", system-ui, sans-serif; color: #e8f1ff;
}
.ac-modal.is-open { opacity: 1; }
.ac-modal-panel {
  width: min(520px, 100%); max-height: calc(100vh - 32px); overflow: auto; padding: 24px; border-radius: 22px;
  background: linear-gradient(170deg, #17233c, #0e1628); border: 1px solid rgba(148,178,255,.2);
  box-shadow: 0 30px 90px rgba(0,0,0,.6); transform: translateY(16px) scale(.97); transition: transform .26s cubic-bezier(.2,.9,.3,1.2);
}
.ac-modal.is-open .ac-modal-panel { transform: none; }
.ac-modal-panel.is-bad { border-color: rgba(255,77,109,.45); box-shadow: 0 30px 90px rgba(0,0,0,.6), 0 0 60px rgba(255,77,109,.18); }
.ac-modal-title { margin: 0 0 12px; font: 800 22px/1.25 "Epilogue", system-ui, sans-serif; }
.ac-modal-panel.is-bad .ac-modal-title { color: #ff8099; }
.ac-modal-body { margin: 0 0 8px; color: #c8d5ea; line-height: 1.6; }
.ac-modal-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; margin-top: 18px; }
.ac-modal .ac-btn.is-primary { color: #03131a; background: linear-gradient(180deg, #5ff1ff 0%, #00d4ee 100%); box-shadow: 0 4px 0 #0891b2; }
.ac-modal .ac-btn.is-ghost { color: #e8f1ff; background: rgba(255,255,255,.05); border: 1px solid rgba(148,178,255,.26); }
.ac-modal .ac-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 18px; border-radius: 13px; font: 700 15px/1.2 "IBM Plex Sans", system-ui, sans-serif; cursor: pointer; text-decoration: none; }
.ac-explain { display: grid; gap: 12px; }
.ac-explain-given { margin: 0; padding: 10px 12px; border-radius: 12px; color: #ffb3c1; background: rgba(255,77,109,.08); border: 1px solid rgba(255,77,109,.2); font-size: 14px; }
.ac-explain-answer { padding: 12px 14px; border-radius: 12px; background: rgba(46,230,166,.08); border: 1px solid rgba(46,230,166,.24); }
.ac-explain-label { margin: 0 0 4px; font: 700 12px/1.3 "IBM Plex Mono", monospace; letter-spacing: .08em; text-transform: uppercase; color: #8ff0c9; }
.ac-explain-why .ac-explain-label { color: #ffd166; }
.ac-explain-text { margin: 0; white-space: pre-line; color: #e8f1ff; font-weight: 600; line-height: 1.5; }
.ac-explain .ac-prose p { color: #d4dff2; }

/* ------------------------------------------------------------ toast, fx */
.ac-toast { position: fixed; left: 50%; bottom: 128px; z-index: 7000; max-width: min(560px, calc(100vw - 32px)); padding: 12px 18px; border-radius: 14px; font-weight: 700; transform: translate(-50%, 20px); opacity: 0; transition: all .25s ease; box-shadow: 0 12px 40px rgba(0,0,0,.45); }
.ac-toast.is-visible { opacity: 1; transform: translate(-50%, 0); }
.ac-toast.is-good { color: #052016; background: #2ee6a6; }
.ac-toast.is-bad { color: #fff; background: #c81e45; font-weight: 600; line-height: 1.5; }
.ac-confetti { position: fixed; inset: 0; width: 100vw; height: 100vh; pointer-events: none; z-index: 9500; }
.ac-flash { position: fixed; inset: 0; pointer-events: none; z-index: 6000; animation: ac-flash .5s ease-out forwards; }
.ac-flash.is-bad { background: radial-gradient(circle at 50% 50%, rgba(255,77,109,.0), rgba(255,77,109,.28)); }
@keyframes ac-flash { from { opacity: 1; } to { opacity: 0; } }
.ac-shake { animation: ac-shake .45s cubic-bezier(.36,.07,.19,.97) both; }
@keyframes ac-shake { 10%, 90% { transform: translateX(-2px); } 20%, 80% { transform: translateX(4px); } 30%, 50%, 70% { transform: translateX(-7px); } 40%, 60% { transform: translateX(7px); } }
.ac-fly-xp { position: fixed; z-index: 9600; padding: 6px 12px; border-radius: 999px; font: 800 15px/1 "IBM Plex Mono", monospace; color: #1b1300; background: linear-gradient(180deg, #ffe08a, #ffbf3c); box-shadow: 0 6px 24px rgba(255,191,60,.45); pointer-events: none; }

/* ========================================================== simulation */
.ac-sim { display: grid; gap: 10px; }
.ac-sim-hud { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.ac-metric { padding: 8px 10px; border-radius: 12px; background: rgba(255,255,255,.035); border: 1px solid var(--ac-line); min-width: 0; }
.ac-metric span { display: block; color: var(--ac-muted); font: 600 10.5px/1.3 var(--ac-mono); letter-spacing: .04em; text-transform: uppercase; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ac-metric strong { display: block; margin-top: 2px; font: 700 16px/1.2 var(--ac-mono); white-space: nowrap; transition: color .3s; }
.ac-metric.is-ok strong { color: var(--ac-green); }
.ac-metric.is-warn strong { color: var(--ac-amber); }
.ac-metric.is-bad strong { color: var(--ac-red); }
.ac-sim-stage { position: relative; border-radius: 16px; overflow: hidden; background:
  radial-gradient(ellipse at 20% 0%, rgba(0,229,255,.08), transparent 55%),
  radial-gradient(ellipse at 90% 100%, rgba(167,139,250,.08), transparent 55%),
  linear-gradient(rgba(148,178,255,.045) 1px, transparent 1px) 0 0 / 22px 22px,
  linear-gradient(90deg, rgba(148,178,255,.045) 1px, transparent 1px) 0 0 / 22px 22px,
  #070c18; border: 1px solid var(--ac-line); }
.ac-sim-stage canvas { display: block; width: 100%; }
.ac-sim-stage canvas.is-clickable { touch-action: manipulation; }
.ac-sim-banner { position: absolute; top: 10px; left: 50%; transform: translate(-50%, -12px); opacity: 0; padding: 7px 14px; border-radius: 999px; font: 700 13px/1.2 var(--ac-body); white-space: nowrap; transition: all .25s ease; pointer-events: none; }
.ac-sim-banner.is-visible { opacity: 1; transform: translate(-50%, 0); }
.ac-sim-banner.is-warn { color: #241500; background: var(--ac-amber); box-shadow: 0 6px 22px rgba(255,194,75,.35); }
.ac-sim-banner.is-bad { color: #fff; background: #e11d48; box-shadow: 0 6px 22px rgba(255,77,109,.4); }
@media (max-width: 560px) { .ac-sim-hud { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* =============================================================== player */
.ac-lesson-page { min-height: 100vh; min-height: 100dvh; background:
  radial-gradient(1200px 600px at 50% -10%, rgba(0,229,255,.1), transparent 60%),
  radial-gradient(900px 500px at 100% 100%, rgba(167,139,250,.08), transparent 60%), var(--ac-bg); }
.ac-player { min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column; }
.ac-player-bar { position: sticky; top: 0; z-index: 50; display: flex; align-items: center; gap: 12px; width: min(980px, 100%); margin: 0 auto; padding: 14px 16px; background: linear-gradient(180deg, rgba(5,7,15,.96), rgba(5,7,15,.75)); backdrop-filter: blur(8px); }
.ac-progress { position: relative; flex: 1; height: 16px; border-radius: 999px; background: rgba(255,255,255,.08); overflow: hidden; }
.ac-progress-fill { position: absolute; inset: 0 auto 0 0; width: 0; border-radius: inherit; background: linear-gradient(90deg, #00b8d4, #00e5ff 60%, #8ff6ff); box-shadow: 0 0 18px rgba(0,229,255,.55); transition: width .5s cubic-bezier(.2,.9,.3,1); }
.ac-progress-fill::after { content: ""; position: absolute; top: 3px; left: 8px; right: 8px; height: 4px; border-radius: 999px; background: rgba(255,255,255,.4); }
.ac-hearts { display: flex; gap: 2px; font-size: 20px; line-height: 1; }
.ac-heart { color: #ff4d6d; text-shadow: 0 0 12px rgba(255,77,109,.6); transition: transform .2s; }
.ac-heart.is-empty { color: #2b3550; text-shadow: none; }
.ac-heart.is-breaking { animation: ac-heart-break .6s ease; }
@keyframes ac-heart-break { 0% { transform: scale(1.6); color: #ff4d6d; } 40% { transform: scale(.6) rotate(-20deg); } 100% { transform: scale(1); } }
.ac-combo { min-width: 0; padding: 4px 10px; border-radius: 999px; font: 800 13px/1 var(--ac-mono); color: #2a1300; background: linear-gradient(180deg, #ffd166, #ff9f43); opacity: 0; transform: scale(.6); transition: all .2s ease; white-space: nowrap; }
.ac-combo.is-visible { opacity: 1; transform: scale(1); }
.ac-combo.is-pop { animation: ac-pop .35s ease; }
@keyframes ac-pop { 50% { transform: scale(1.25); } }
.ac-xp-counter { font: 700 13px/1 var(--ac-mono); color: var(--ac-gold); white-space: nowrap; transition: transform .2s; }
.ac-xp-counter.is-pop { transform: scale(1.3); }
.ac-stage { flex: 1; width: min(860px, 100%); margin: 0 auto; padding: 12px 16px 200px; }
.ac-step { display: grid; gap: 18px; transition: opacity .35s ease, transform .35s cubic-bezier(.2,.9,.3,1); }
.ac-step.is-entering { opacity: 0; transform: translateX(28px); }
.ac-step-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.ac-step-title { margin: 0; font: 800 clamp(24px, 4.2vw, 34px)/1.15 var(--ac-display); letter-spacing: -.02em; }
.ac-question-text { margin: 0; font: 800 clamp(20px, 3.4vw, 27px)/1.25 var(--ac-display); letter-spacing: -.015em; }
.ac-question-hint { margin: 6px 0 0; color: var(--ac-muted); font-size: 14px; }
.ac-prose { color: #cfdcf2; font-size: 17px; line-height: 1.7; }
.ac-prose p { margin: 0 0 12px; }
.ac-prose p:last-child { margin-bottom: 0; }
/* the site's reset removes list markers: the course draws its own */
.ac-prose ul { margin: 0 0 12px; padding-left: 22px; list-style: none; }
.ac-prose li { position: relative; margin: 4px 0; }
.ac-prose li::before { content: ""; position: absolute; left: -15px; top: .7em; width: 6px; height: 6px; border-radius: 50%; background: var(--ac-cyan); box-shadow: 0 0 8px rgba(0,229,255,.6); }
.ac-prose strong { color: #fff; }
.ac-prose em { color: #c4b5fd; font-style: normal; }
.ac-prose code, .ac-question code, .ac-choice code, .ac-situation code { padding: 1px 6px; border-radius: 6px; font: 500 .9em var(--ac-mono); color: var(--ac-gold); background: rgba(255,209,102,.08); }
.ac-tip { display: flex; gap: 12px; padding: 14px 16px; border-radius: 16px; background: rgba(255,209,102,.06); border: 1px solid rgba(255,209,102,.22); color: #f3e3b9; line-height: 1.6; }
.ac-tip p { margin: 0; }
.ac-tip-icon { font-size: 20px; }
.ac-situation { padding: 14px 16px; border-radius: 16px; background: rgba(167,139,250,.07); border: 1px solid rgba(167,139,250,.22); color: #ddd6fe; line-height: 1.65; font-size: 15.5px; }
.ac-situation p { margin: 0 0 8px; }
.ac-situation p:last-child { margin: 0; }
.ac-visual { min-height: 120px; }

/* choices */
.ac-choices { display: grid; gap: 12px; }
.ac-choices.is-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 640px) { .ac-choices.is-grid { grid-template-columns: 1fr; } }
.ac-choice {
  display: flex; align-items: flex-start; gap: 14px; width: 100%; padding: 16px 18px; text-align: left; cursor: pointer;
  color: var(--ac-text); font: 500 16px/1.5 var(--ac-body); border-radius: 16px; background: var(--ac-panel);
  border: 2px solid var(--ac-line-strong); box-shadow: 0 4px 0 rgba(148,178,255,.16); transition: transform .12s ease, border-color .2s, box-shadow .2s, background .2s;
}
.ac-choice:hover { border-color: rgba(0,229,255,.5); background: rgba(0,229,255,.05); }
.ac-choice:active { transform: translateY(3px); box-shadow: 0 1px 0 rgba(148,178,255,.16); }
.ac-choice:focus-visible { outline: 3px solid rgba(0,229,255,.55); outline-offset: 2px; }
.ac-choice.is-selected { border-color: var(--ac-cyan); background: rgba(0,229,255,.1); box-shadow: 0 4px 0 #0891b2, 0 0 24px rgba(0,229,255,.18); }
.ac-choice.is-correct { border-color: var(--ac-green); background: rgba(46,230,166,.12); box-shadow: 0 4px 0 #059669; }
.ac-choice.is-wrong { border-color: var(--ac-red); background: rgba(255,77,109,.1); box-shadow: 0 4px 0 #be123c; }
.ac-choices.is-locked .ac-choice { cursor: default; }
.ac-choice-key { flex: none; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 9px; font: 700 13px/1 var(--ac-mono); color: var(--ac-muted); border: 1.5px solid var(--ac-line-strong); }
.ac-choice-key:empty { border-radius: 8px; }
.ac-choice[role="checkbox"].is-selected .ac-choice-key::after { content: "✓"; color: var(--ac-cyan); font-weight: 800; }
.ac-choice.is-selected .ac-choice-key { color: var(--ac-cyan); border-color: var(--ac-cyan); }
.ac-choice-text { flex: 1; min-width: 0; }

/* order, match */
.ac-token { display: inline-flex; align-items: center; padding: 12px 16px; border-radius: 14px; color: var(--ac-text); font: 600 15px/1.4 var(--ac-body); text-align: left; cursor: pointer; background: var(--ac-panel-2); border: 2px solid var(--ac-line-strong); box-shadow: 0 3px 0 rgba(148,178,255,.16); transition: all .15s ease; }
.ac-token:hover { border-color: rgba(0,229,255,.5); }
.ac-order-pool { display: flex; flex-wrap: wrap; gap: 10px; min-height: 52px; }
.ac-order-answer { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.ac-order-slot { display: flex; align-items: center; gap: 12px; min-height: 54px; padding: 4px; border-radius: 16px; border: 2px dashed var(--ac-line-strong); }
.ac-order-slot:not(.is-empty) { border-style: solid; border-color: rgba(0,229,255,.25); }
.ac-order-slot .ac-token { flex: 1; }
.ac-order-rank { flex: none; display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; font: 700 13px/1 var(--ac-mono); color: var(--ac-cyan); background: rgba(0,229,255,.1); }
.ac-order-slot.is-correct { border-color: var(--ac-green); background: rgba(46,230,166,.08); }
.ac-order-slot.is-wrong { border-color: var(--ac-red); background: rgba(255,77,109,.08); }
.ac-match-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ac-match-col { display: grid; gap: 10px; align-content: start; }
.ac-match-item { width: 100%; min-height: 58px; }
.ac-match-item.is-selected { border-color: var(--ac-cyan); background: rgba(0,229,255,.12); }
.ac-match-item.is-matched { border-color: rgba(46,230,166,.6); background: rgba(46,230,166,.1); opacity: .55; cursor: default; }
.ac-match-item.is-wrong { border-color: var(--ac-red); animation: ac-shake .4s; }

/* estimate */
.ac-estimate-row { display: flex; align-items: center; gap: 12px; padding: 10px 16px; border-radius: 18px; background: var(--ac-panel); border: 2px solid var(--ac-line-strong); }
.ac-estimate-input { flex: 1; min-width: 0; padding: 8px 0; border: 0; background: transparent; color: var(--ac-text); font: 700 30px/1.2 var(--ac-mono); outline: none; }
.ac-estimate-input.is-correct { color: var(--ac-green); }
.ac-estimate-input.is-wrong { color: var(--ac-red); }
.ac-estimate-unit { color: var(--ac-muted); font: 600 15px/1.3 var(--ac-body); }

/* verdicts */
.ac-verdict { display: none; padding: 12px 16px; border-radius: 14px; font-size: 14.5px; line-height: 1.5; }
.ac-verdict.is-ok, .ac-verdict.is-slow, .ac-verdict.is-down { display: grid; gap: 2px; }
.ac-verdict.is-ok { background: rgba(46,230,166,.08); border: 1px solid rgba(46,230,166,.3); color: #b7f7de; }
.ac-verdict.is-slow { background: rgba(255,194,75,.08); border: 1px solid rgba(255,194,75,.3); color: #ffe2a3; }
.ac-verdict.is-down { background: rgba(255,77,109,.08); border: 1px solid rgba(255,77,109,.32); color: #ffc0cc; }
.ac-verdict strong { font-size: 15.5px; }

/* debate */
.ac-debate-head { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 16px; background: var(--ac-panel); border: 1px solid var(--ac-line); }
.ac-debate-name { margin: 0; font-weight: 800; }
.ac-debate-role { margin: 0; color: var(--ac-muted); font-size: 13.5px; }
.ac-avatar { --avatar: #a78bfa; flex: none; display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; font: 800 16px/1 var(--ac-display); color: #0b0618; background: var(--avatar); box-shadow: 0 0 0 3px rgba(255,255,255,.06), 0 0 20px color-mix(in srgb, var(--avatar) 40%, transparent); }
.ac-thread { display: grid; gap: 10px; }
.ac-bubble { display: flex; align-items: flex-end; gap: 8px; max-width: 88%; animation: ac-bubble .3s cubic-bezier(.2,.9,.3,1.2); }
@keyframes ac-bubble { from { opacity: 0; transform: translateY(10px) scale(.96); } }
.ac-bubble .ac-avatar { width: 30px; height: 30px; font-size: 13px; }
.ac-bubble-text { padding: 12px 15px; border-radius: 18px; line-height: 1.55; font-size: 15.5px; }
.ac-bubble.is-them .ac-bubble-text { background: var(--ac-panel-2); border: 1px solid var(--ac-line-strong); border-bottom-left-radius: 6px; }
.ac-bubble.is-me { margin-left: auto; }
.ac-bubble.is-me .ac-bubble-text { color: #03131a; background: linear-gradient(180deg, #5ff1ff, #00d4ee); border-bottom-right-radius: 6px; font-weight: 600; }
.ac-bubble.is-me.is-corrected .ac-bubble-text { color: #052016; background: linear-gradient(180deg, #6ef5c3, #2ee6a6); }
.ac-bubble.is-me.is-corrected .ac-bubble-text::before { content: "✓ "; font-weight: 800; }
.ac-bubble.is-typing .ac-bubble-text { display: flex; gap: 4px; padding: 14px 16px; }
.ac-bubble.is-typing .ac-bubble-text span { width: 7px; height: 7px; border-radius: 50%; background: var(--ac-muted); animation: ac-typing 1s infinite ease-in-out; }
.ac-bubble.is-typing .ac-bubble-text span:nth-child(2) { animation-delay: .15s; }
.ac-bubble.is-typing .ac-bubble-text span:nth-child(3) { animation-delay: .3s; }
@keyframes ac-typing { 0%, 60%, 100% { transform: translateY(0); opacity: .5; } 30% { transform: translateY(-5px); opacity: 1; } }
.ac-replies { display: grid; gap: 10px; }
.ac-reply { padding: 14px 16px; border-radius: 16px; text-align: left; cursor: pointer; color: var(--ac-text); font: 500 15.5px/1.5 var(--ac-body); background: rgba(0,229,255,.05); border: 2px solid rgba(0,229,255,.28); box-shadow: 0 3px 0 rgba(0,229,255,.18); transition: all .15s ease; }
.ac-reply:hover { background: rgba(0,229,255,.11); }
.ac-reply:active { transform: translateY(2px); }

/* enterprise */
.ac-enterprise { position: relative; padding: 22px; border-radius: 24px; background: linear-gradient(160deg, rgba(46,230,166,.06), rgba(0,229,255,.03) 50%, rgba(17,26,46,.6)); border: 1px solid rgba(46,230,166,.25); }
.ac-enterprise-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.ac-pattern { font: 700 12px/1.3 var(--ac-mono); color: var(--ac-muted); letter-spacing: .06em; text-transform: uppercase; }
.ac-apply { padding: 14px 16px; border-radius: 16px; background: rgba(5,7,15,.45); border: 1px solid var(--ac-line); }
.ac-apply-title { margin: 0 0 6px; font-weight: 800; color: #b7f7de; }
.ac-apply ul { margin: 0; padding-left: 22px; list-style: none; color: #d3e0f4; line-height: 1.6; }
.ac-apply li { position: relative; margin: 4px 0; }
.ac-apply li::before { content: "→"; position: absolute; left: -20px; color: var(--ac-green); font-weight: 800; }
.ac-say { position: relative; margin: 0; padding: 16px 18px; border-radius: 18px; background: rgba(167,139,250,.08); border: 1px solid rgba(167,139,250,.3); }
.ac-say-label { margin: 0 0 6px; font: 700 12px/1.3 var(--ac-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--ac-violet); }
.ac-say-text { margin: 0 0 12px; font: 600 17px/1.55 var(--ac-body); color: #ede9fe; }

/* ADR */
.ac-adr-details { display: grid; gap: 4px; margin-top: 8px; font-size: 13.5px; line-height: 1.45; }
.ac-adr-pros { color: #9eeccc; }
.ac-adr-cons { color: #ffb3c1; }
.ac-adr-record { padding: 20px; border-radius: 18px; background: #0d1424; border: 1px solid var(--ac-line-strong); box-shadow: inset 0 0 0 1px rgba(255,255,255,.02); font-family: var(--ac-body); animation: ac-bubble .4s ease; }
.ac-adr-kicker { margin: 0 0 4px; font: 700 11px/1.4 var(--ac-mono); color: var(--ac-cyan); letter-spacing: .12em; text-transform: uppercase; }
.ac-adr-title { margin: 0 0 12px; font: 800 19px/1.3 var(--ac-display); }
.ac-adr-line { display: grid; grid-template-columns: 130px 1fr; gap: 12px; padding: 10px 0; border-top: 1px solid var(--ac-line); color: #cfdcf2; line-height: 1.55; font-size: 14.5px; }
.ac-adr-line p { margin: 0; }
.ac-adr-label { font: 700 12px/1.6 var(--ac-mono); color: var(--ac-muted); text-transform: uppercase; letter-spacing: .05em; }
@media (max-width: 560px) { .ac-adr-line { grid-template-columns: 1fr; gap: 4px; } }

/* build */
.ac-build-goals { padding: 12px 14px; border-radius: 16px; background: var(--ac-panel); border: 1px solid var(--ac-line); }
.ac-goals { display: grid; gap: 6px; margin: 6px 0 0; padding: 0; list-style: none; }
.ac-goals li { display: flex; align-items: center; gap: 10px; font-size: 14.5px; color: #d3e0f4; }
.ac-goals li strong { margin-left: auto; font-family: var(--ac-mono); }
.ac-goals li.is-ok strong { color: var(--ac-green); }
.ac-goals li.is-bad strong { color: var(--ac-red); }
.ac-build-controls { display: grid; gap: 12px; }
.ac-slot-label { margin: 0 0 8px; font: 700 12px/1.4 var(--ac-mono); color: var(--ac-muted); letter-spacing: .08em; text-transform: uppercase; }
.ac-slot-options { display: flex; flex-wrap: wrap; gap: 8px; }
.ac-slot-option { padding: 9px 14px; border-radius: 12px; color: var(--ac-text); font: 600 14px/1.3 var(--ac-body); cursor: pointer; background: rgba(255,255,255,.04); border: 2px solid var(--ac-line-strong); transition: all .15s ease; }
.ac-slot-option:hover { border-color: rgba(0,229,255,.45); }
.ac-slot-option.is-selected { color: #03131a; background: var(--ac-cyan); border-color: var(--ac-cyan); box-shadow: 0 0 20px rgba(0,229,255,.3); }

/* concept extras */
.ac-concept .ac-kicker:empty { display: none; }

/* check bar */
.ac-check-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; padding: 16px 16px calc(16px + env(safe-area-inset-bottom)); background: rgba(8, 12, 24, .94); border-top: 1px solid var(--ac-line); backdrop-filter: blur(10px); transition: background .25s ease, border-color .25s; }
.ac-check-bar.is-correct { background: rgba(6, 46, 34, .96); border-color: rgba(46,230,166,.4); }
.ac-check-bar.is-wrong { background: rgba(58, 10, 22, .96); border-color: rgba(255,77,109,.4); }
.ac-check-inner { display: flex; align-items: center; gap: 16px; width: min(860px, 100%); margin: 0 auto; }
.ac-feedback { flex: 1; min-width: 0; max-height: 34vh; overflow: auto; }
.ac-feedback-title { margin: 0; font: 800 19px/1.3 var(--ac-display); }
.ac-check-bar.is-correct .ac-feedback-title { color: var(--ac-green); }
.ac-check-bar.is-wrong .ac-feedback-title { color: #ff8099; }
.ac-feedback-text { margin-top: 4px; color: #d3e0f4; font-size: 14.5px; line-height: 1.55; }
.ac-feedback-text p { margin: 0 0 6px; }
.ac-check-actions { display: flex; gap: 10px; flex: none; }
.ac-check { min-width: 180px; }
.ac-check-bar.is-correct .ac-check { background: linear-gradient(180deg, #6ef5c3, #2ee6a6); box-shadow: 0 4px 0 #059669; }
.ac-check-bar.is-wrong .ac-check { color: #fff; background: linear-gradient(180deg, #ff7a93, #ff4d6d); box-shadow: 0 4px 0 #be123c; }
@media (max-width: 640px) {
  .ac-check-inner { flex-direction: column; align-items: stretch; gap: 10px; }
  .ac-check-actions { flex-direction: column-reverse; }
  .ac-check { width: 100%; }
  .ac-player-bar { gap: 8px; padding: 10px 12px; }
  .ac-xp-counter { display: none; }
  .ac-hearts { font-size: 17px; }
  .ac-stage { padding-bottom: 240px; }
  .ac-prose { font-size: 16px; }
}

/* intro */
.ac-intro { display: grid; gap: 14px; justify-items: start; padding: clamp(24px, 6vw, 56px) 0 0; animation: ac-bubble .5s ease; }
.ac-intro-title { margin: 0; font: 800 clamp(30px, 6vw, 52px)/1.06 var(--ac-display); letter-spacing: -.03em; background: linear-gradient(180deg, #ffffff, #a6f6ff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ac-intro-goal { color: #cfdcf2; font-size: 18px; line-height: 1.6; max-width: 640px; }
.ac-intro-goal p { margin: 0; }
.ac-intro-meta { display: flex; flex-wrap: wrap; gap: 10px; }
.ac-intro-meta span { padding: 6px 12px; border-radius: 999px; font: 600 13px/1.2 var(--ac-mono); color: var(--ac-muted); background: rgba(255,255,255,.04); border: 1px solid var(--ac-line); }
.ac-intro-hint { margin: 0; color: var(--ac-faint); font-size: 13.5px; }
.ac-intro.is-boss .ac-intro-title { background: linear-gradient(180deg, #ffffff, #ffb3c1); -webkit-background-clip: text; background-clip: text; }
.ac-intro-alert { padding: 8px 16px; border-radius: 10px; font: 800 14px/1 var(--ac-mono); letter-spacing: .2em; color: #fff; background: #e11d48; box-shadow: 0 0 40px rgba(225,29,72,.55); animation: ac-alarm 1s infinite; }
@keyframes ac-alarm { 50% { box-shadow: 0 0 10px rgba(225,29,72,.2); opacity: .8; } }

/* results */
.ac-results { display: grid; gap: 18px; justify-items: center; padding-top: 18px; text-align: center; animation: ac-bubble .5s ease; }
.ac-results-trophy { font-size: 72px; line-height: 1; filter: drop-shadow(0 10px 30px rgba(255,209,102,.4)); animation: ac-trophy 1.2s cubic-bezier(.2,.9,.3,1.3); }
@keyframes ac-trophy { from { transform: scale(.2) rotate(-25deg); opacity: 0; } }
.ac-results-title { margin: 0; font: 800 clamp(30px, 6vw, 46px)/1.1 var(--ac-display); letter-spacing: -.03em; color: var(--ac-gold); text-shadow: 0 0 40px rgba(255,209,102,.35); }
.ac-results-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; width: min(560px, 100%); }
.ac-stat { display: grid; gap: 4px; padding: 14px 10px; border-radius: 18px; border: 2px solid; }
.ac-stat span { font: 700 11px/1.2 var(--ac-mono); letter-spacing: .08em; text-transform: uppercase; }
.ac-stat strong { font: 800 26px/1.1 var(--ac-mono); }
.ac-stat.is-xp { border-color: var(--ac-gold); color: var(--ac-gold); background: rgba(255,209,102,.06); }
.ac-stat.is-accuracy { border-color: var(--ac-green); color: var(--ac-green); background: rgba(46,230,166,.06); }
.ac-stat.is-time { border-color: var(--ac-cyan); color: var(--ac-cyan); background: rgba(0,229,255,.06); }
.ac-results-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.ac-streak-card, .ac-goal-card { display: grid; justify-items: center; gap: 4px; min-width: 150px; padding: 14px 18px; border-radius: 18px; background: var(--ac-panel); border: 1px solid var(--ac-line); }
.ac-streak-card strong { font: 800 30px/1 var(--ac-mono); color: #ff9f43; }
.ac-streak-card span:last-child, .ac-goal-card > span { color: var(--ac-muted); font-size: 13px; }
.ac-flame { font-size: 30px; }
.ac-streak-card.is-up .ac-flame { animation: ac-flame 1.2s ease infinite; }
@keyframes ac-flame { 50% { transform: scale(1.18) translateY(-3px); filter: drop-shadow(0 0 12px #ff9f43); } }
.ac-ring { --value: 0; display: grid; place-items: center; width: 64px; height: 64px; border-radius: 50%; background: radial-gradient(closest-side, #101a2d 78%, transparent 80% 100%), conic-gradient(var(--ac-green) calc(var(--value) * 1%), rgba(255,255,255,.08) 0); font: 700 12px/1 var(--ac-mono); }
.ac-results-extra { display: grid; gap: 6px; }
.ac-results-note { margin: 0; font-weight: 800; }
.ac-results-note.is-goal { color: var(--ac-green); }
.ac-results-note.is-perfect { color: var(--ac-gold); }
.ac-results-note.is-streak { color: #ff9f43; }
.ac-badges { display: grid; gap: 10px; width: min(560px, 100%); }
.ac-badge { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: 18px; text-align: left; background: linear-gradient(120deg, rgba(255,209,102,.12), rgba(167,139,250,.08)); border: 1px solid rgba(255,209,102,.35); }
.ac-badge.is-new { opacity: 0; animation: ac-badge-in .6s cubic-bezier(.2,.9,.3,1.3) forwards; }
@keyframes ac-badge-in { from { opacity: 0; transform: scale(.7) translateY(14px); } to { opacity: 1; transform: none; } }
.ac-badge-icon { font-size: 34px; }
.ac-badge-kicker { margin: 0; font: 700 10.5px/1.3 var(--ac-mono); color: var(--ac-gold); letter-spacing: .12em; text-transform: uppercase; }
.ac-badge-title { margin: 0; font-weight: 800; }
.ac-badge-desc { margin: 0; color: var(--ac-muted); font-size: 13.5px; }
.ac-level-done { width: min(560px, 100%); padding: 20px; border-radius: 22px; background: linear-gradient(140deg, rgba(255,209,102,.14), rgba(0,229,255,.06)); border: 1px solid rgba(255,209,102,.4); box-shadow: 0 0 60px rgba(255,209,102,.12); }
.ac-level-done h2 { margin: 0 0 6px; font: 800 24px/1.2 var(--ac-display); }
.ac-level-done p { margin: 0 0 12px; color: #d7e3f8; line-height: 1.55; }
.ac-results-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.ac-practice { display: grid; gap: 8px; width: min(560px, 100%); text-align: left; }
.ac-practice-link { display: flex; justify-content: space-between; gap: 12px; padding: 12px 16px; border-radius: 14px; text-decoration: none; background: var(--ac-panel); border: 1px solid var(--ac-line-strong); transition: border-color .2s; }
.ac-practice-link:hover { border-color: var(--ac-cyan); }

/* paywall */
.ac-paywall { display: grid; gap: 10px; width: min(560px, 100%); padding: 22px; border-radius: 24px; text-align: left; background: radial-gradient(500px 200px at 0% 0%, rgba(255,209,102,.16), transparent 60%), linear-gradient(160deg, #1a1630, #0e1628); border: 1px solid rgba(255,209,102,.45); box-shadow: 0 0 70px rgba(255,209,102,.14); color: #e8f1ff; font-family: "IBM Plex Sans", system-ui, sans-serif; }
.ac-paywall h2 { margin: 0; font: 800 26px/1.15 "Epilogue", system-ui, sans-serif; }
.ac-paywall p { margin: 0; color: #d7e3f8; line-height: 1.6; }
.ac-paywall ul { display: grid; gap: 6px; margin: 4px 0; padding: 0; list-style: none; color: #fff0c2; font-weight: 600; }
.ac-paywall-price { font: 700 15px/1.3 "IBM Plex Mono", monospace; color: #ffd166 !important; }
.ac-paywall .ac-btn.is-primary { display: inline-flex; align-items: center; justify-content: center; min-height: 54px; border-radius: 16px; color: #03131a; text-decoration: none; font: 800 16px/1 "IBM Plex Sans", system-ui, sans-serif; background: linear-gradient(180deg, #5ff1ff 0%, #00d4ee 100%); box-shadow: 0 4px 0 #0891b2, 0 10px 30px rgba(0,229,255,.28); }
.ac-modal-panel.is-paywall { padding: 10px; background: transparent; border: 0; box-shadow: none; }
.ac-modal-panel.is-paywall .ac-modal-actions { justify-content: center; }

/* ================================================================= map */
/* the doors' rows are shifted sideways: never let them widen the page on a phone */
.ac-learn-page { min-height: 100vh; overflow-x: clip; background:
  radial-gradient(1200px 700px at 50% -200px, rgba(0,229,255,.12), transparent 60%),
  linear-gradient(rgba(148,178,255,.035) 1px, transparent 1px) 0 0 / 34px 34px,
  linear-gradient(90deg, rgba(148,178,255,.035) 1px, transparent 1px) 0 0 / 34px 34px, var(--ac-bg); }
/* the site's navbar is fixed and 5rem tall: the map starts below it */
.ac-learn { width: min(980px, 100%); margin: 0 auto; padding: calc(5rem + 20px) 16px 90px; }
/* sticks just below the site's fixed 5rem navbar */
.ac-topbar { position: sticky; top: calc(5rem + 8px); z-index: 30; display: grid; grid-template-columns: 1fr auto; gap: 12px 18px; padding: 16px 18px; border-radius: 22px; background: rgba(10, 15, 28, .86); border: 1px solid var(--ac-line-strong); backdrop-filter: blur(12px); box-shadow: 0 20px 50px rgba(0,0,0,.35); }
.ac-topbar-title h1 { margin: 0; font: 800 clamp(20px, 3vw, 26px)/1.15 var(--ac-display); letter-spacing: -.02em; }
.ac-course-progress { height: 8px; margin-top: 10px; border-radius: 999px; background: rgba(255,255,255,.08); overflow: hidden; }
.ac-course-progress-fill { height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--ac-violet), var(--ac-cyan)); box-shadow: 0 0 14px rgba(0,229,255,.5); }
.ac-course-progress-label { margin: 4px 0 0; color: var(--ac-muted); font: 600 12px/1 var(--ac-mono); }
.ac-topbar-stats { display: flex; align-items: center; gap: 8px; }
.ac-pill { display: inline-flex; align-items: center; gap: 6px; padding: 7px 11px; border-radius: 999px; font: 700 14px/1 var(--ac-mono); background: rgba(255,255,255,.05); border: 1px solid var(--ac-line); }
.ac-pill.is-streak strong { color: #ff9f43; }
.ac-pill.is-streak:not(.is-lit) span { filter: grayscale(1); opacity: .6; }
.ac-pill.is-xp strong { color: var(--ac-gold); }
.ac-mini-ring { --value: 0; width: 18px; height: 18px; border-radius: 50%; background: radial-gradient(closest-side, #0b1220 62%, transparent 66% 100%), conic-gradient(var(--ac-green) calc(var(--value) * 1%), rgba(255,255,255,.12) 0); }
.ac-rank { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; font-size: 13.5px; }
.ac-rank-label { color: var(--ac-muted); }
.ac-rank strong { color: var(--ac-violet); }
.ac-rank-bar { flex: 1; min-width: 120px; height: 6px; border-radius: 999px; background: rgba(255,255,255,.08); overflow: hidden; }
.ac-rank-bar div { height: 100%; background: var(--ac-violet); border-radius: inherit; }
.ac-rank-next { color: var(--ac-faint); font-size: 12.5px; }
.ac-topbar-actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 8px; }
.ac-badge-strip { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 6px; }
.ac-badge-mini { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; font-size: 18px; background: rgba(255,209,102,.08); border: 1px solid rgba(255,209,102,.25); }
@media (max-width: 640px) { .ac-topbar { grid-template-columns: 1fr; position: static; } .ac-topbar-stats { flex-wrap: wrap; } }

.ac-maze { display: grid; gap: 34px; margin-top: 34px; }
.ac-floor { --floor: #00e5ff; position: relative; padding: 22px 18px 26px; border-radius: 28px; background: linear-gradient(170deg, color-mix(in srgb, var(--floor) 9%, transparent), rgba(10,15,28,.6) 40%); border: 1px solid color-mix(in srgb, var(--floor) 28%, transparent); }
.ac-floor::before { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; background: linear-gradient(rgba(148,178,255,.05) 1px, transparent 1px) 0 0 / 48px 48px, linear-gradient(90deg, rgba(148,178,255,.05) 1px, transparent 1px) 0 0 / 48px 48px; mask: radial-gradient(ellipse at center, #000 30%, transparent 80%); }
.ac-floor-head { position: relative; display: flex; align-items: center; gap: 16px; }
.ac-floor-head h2 { margin: 0; font: 800 clamp(20px, 3vw, 26px)/1.15 var(--ac-display); }
.ac-floor-tagline { margin: 4px 0 0; color: var(--ac-muted); font-size: 14.5px; line-height: 1.5; }
.ac-nines { flex: none; display: grid; place-items: center; width: 74px; height: 74px; padding: 6px; border-radius: 22px; text-align: center; font: 800 12px/1.15 var(--ac-mono); letter-spacing: .04em; color: #03131a; background: var(--floor); box-shadow: 0 0 34px color-mix(in srgb, var(--floor) 45%, transparent); text-transform: uppercase; }
.ac-floor-count { margin-left: auto; font: 700 14px/1 var(--ac-mono); color: var(--ac-muted); }
.ac-floor.is-complete .ac-floor-count { color: var(--ac-green); }
/* phones: badge, title and count on one line, the tagline across the whole floor below */
@media (max-width: 640px) {
  .ac-floor-head { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; column-gap: 12px; row-gap: 2px; align-items: center; }
  .ac-floor-text { display: contents; }
  .ac-nines { grid-row: 1 / 3; width: 56px; height: 56px; border-radius: 16px; font-size: 10px; }
  .ac-floor-head .ac-kicker { grid-column: 2; grid-row: 1; align-self: end; margin: 0; }
  .ac-floor-head h2 { grid-column: 2; grid-row: 2; align-self: start; }
  .ac-floor-count { grid-column: 3; grid-row: 1 / 3; }
  .ac-floor-tagline { grid-column: 1 / -1; grid-row: 3; margin-top: 12px; }
}
.ac-floor-foot { position: relative; display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
/* room above the first door for its "start" bubble, clear of the floor's tagline */
.ac-path { position: relative; display: grid; gap: 26px; padding: 56px 0 6px; overflow-x: clip; }
.ac-path-svg { position: absolute; inset: 0; pointer-events: none; overflow: visible; }
.ac-corridor { fill: none; stroke: rgba(148,178,255,.08); stroke-width: 22; stroke-linecap: round; }
.ac-corridor-line { fill: none; stroke: rgba(148,178,255,.22); stroke-width: 3; stroke-dasharray: 2 9; stroke-linecap: round; }
.ac-corridor-line.is-lit { stroke: var(--floor); stroke-dasharray: none; filter: drop-shadow(0 0 6px var(--floor)); }
.ac-door-row { position: relative; display: flex; justify-content: center; transform: translateX(var(--offset)); }
/* room for the "start" bubble above the next door, clear of the previous door's name */
.ac-door-row:has(.ac-door-bubble):not(:first-of-type) { margin-top: 34px; }
@media (max-width: 640px) { .ac-door-row { transform: translateX(calc(var(--offset) * .6)); } }
.ac-door { position: relative; display: grid; justify-items: center; gap: 8px; width: 170px; padding: 0; border: 0; background: none; color: var(--ac-text); cursor: pointer; font-family: var(--ac-body); }
.ac-door-ring { position: relative; display: block; width: 78px; height: 78px; border-radius: 50%; background: radial-gradient(circle at 35% 30%, #2a3a5e, #111a2e 70%); border: 3px solid var(--ac-line-strong); box-shadow: 0 6px 0 #0a1020, 0 12px 30px rgba(0,0,0,.4); transition: transform .2s ease, box-shadow .2s ease; }
.ac-door:hover .ac-door-ring { transform: translateY(-3px); }
.ac-door:active .ac-door-ring { transform: translateY(3px); box-shadow: 0 2px 0 #0a1020; }
.ac-door:focus-visible { outline: none; }
.ac-door:focus-visible .ac-door-ring { outline: 3px solid var(--ac-cyan); outline-offset: 4px; }
.ac-door-icon { position: absolute; top: 20px; left: 50%; transform: translateX(-50%); font-size: 32px; line-height: 1; pointer-events: none; }
.ac-door-state { position: absolute; top: 2px; right: 42px; display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; font-size: 13px; font-weight: 800; color: #03131a; background: var(--ac-green); box-shadow: 0 0 12px rgba(46,230,166,.6); }
.ac-door.is-locked .ac-door-state, .ac-door.is-paywall .ac-door-state { background: #2b3550; color: #fff; box-shadow: none; }
.ac-door.is-paywall .ac-door-state { background: linear-gradient(180deg, #ffe08a, #ffbf3c); }
.ac-door-title { max-width: 170px; font: 700 13.5px/1.3 var(--ac-body); text-align: center; color: #d3e0f4; }
.ac-door.is-done .ac-door-ring { border-color: var(--floor); background: radial-gradient(circle at 35% 30%, color-mix(in srgb, var(--floor) 45%, #1b2a48), #0f1a30 72%); box-shadow: 0 6px 0 color-mix(in srgb, var(--floor) 45%, #05080f), 0 0 26px color-mix(in srgb, var(--floor) 35%, transparent); }
.ac-door.is-open .ac-door-ring { border-color: var(--ac-cyan); }
.ac-door.is-locked .ac-door-ring, .ac-door.is-paywall .ac-door-ring { filter: grayscale(.9) brightness(.7); }
.ac-door.is-locked .ac-door-title, .ac-door.is-paywall .ac-door-title { color: var(--ac-faint); }
.ac-door.is-current .ac-door-ring { border-color: var(--ac-cyan); animation: ac-door-pulse 1.8s ease-in-out infinite; }
@keyframes ac-door-pulse { 0%, 100% { box-shadow: 0 6px 0 #0891b2, 0 0 0 0 rgba(0,229,255,.55); } 50% { box-shadow: 0 6px 0 #0891b2, 0 0 0 16px rgba(0,229,255,0); } }
.ac-door-bubble { position: absolute; top: -38px; left: 50%; transform: translateX(-50%); padding: 7px 14px; border-radius: 12px; font: 800 13px/1 var(--ac-body); letter-spacing: .04em; text-transform: uppercase; color: #03131a; background: var(--ac-cyan); box-shadow: 0 8px 22px rgba(0,229,255,.4); white-space: nowrap; animation: ac-bob 1.6s ease-in-out infinite; }
.ac-door-bubble::after { content: ""; position: absolute; left: 50%; bottom: -6px; width: 12px; height: 12px; background: inherit; transform: translateX(-50%) rotate(45deg); border-radius: 2px; }
@keyframes ac-bob { 50% { transform: translate(-50%, -5px); } }
.ac-door.is-boss .ac-door-ring { width: 100px; height: 100px; border-radius: 30px; transform: rotate(45deg); }
.ac-door.is-boss:hover .ac-door-ring { transform: rotate(45deg) translateY(-3px); }
.ac-door.is-boss .ac-door-icon { top: 26px; font-size: 42px; }
.ac-door.is-boss .ac-door-state { right: 30px; top: -4px; }
.ac-door.is-boss .ac-door-title { margin-top: 12px; color: #ffb3c1; font-weight: 800; }
.ac-door.is-boss.is-open .ac-door-ring, .ac-door.is-boss.is-current .ac-door-ring { border-color: #ff4d6d; box-shadow: 0 6px 0 #9f1239, 0 0 40px rgba(255,77,109,.35); }
.ac-door.is-flagged .ac-door-ring { outline: 3px dashed var(--ac-amber); outline-offset: 6px; }
.ac-door-card { display: grid; gap: 10px; }
.ac-door-goal { margin: 0; color: #d3e0f4; line-height: 1.6; }
.ac-door-note { margin: 0; padding: 10px 12px; border-radius: 12px; color: #ffe2a3; background: rgba(255,194,75,.08); border: 1px solid rgba(255,194,75,.25); font-size: 14px; }
.ac-modal-panel.is-door .ac-modal-title { font-size: 20px; }
.ac-final { position: relative; overflow: hidden; display: grid; gap: 10px; justify-items: center; padding: 34px 22px; border-radius: 28px; text-align: center; background: linear-gradient(160deg, rgba(167,139,250,.12), rgba(0,229,255,.06)); border: 1px solid rgba(167,139,250,.35); }
.ac-final h2 { margin: 0; font: 800 26px/1.2 var(--ac-display); }
.ac-final p { margin: 0; max-width: 560px; color: #cfdcf2; line-height: 1.6; }
.ac-final-glow { position: absolute; inset: -40% -10% auto; height: 300px; background: radial-gradient(closest-side, rgba(167,139,250,.25), transparent); pointer-events: none; }
.ac-settings { display: grid; gap: 14px; }
.ac-goal-options { display: flex; flex-wrap: wrap; gap: 8px; }
.ac-switch { display: flex; align-items: center; gap: 10px; color: #d3e0f4; cursor: pointer; }
.ac-switch input { width: 20px; height: 20px; accent-color: #00e5ff; }

/* ============================================================== landing */
/* clip, not hidden: hidden would make this a scroll container and break the journey's sticky rail */
.ac-landing { overflow-x: clip; }
/* in-page links (#essai, #prix…) land below the site's fixed navbar */
.ac-landing [id] { scroll-margin-top: 6rem; }
.ac-hero { position: relative; min-height: min(92vh, 900px); display: grid; align-items: center; padding: 110px 16px 80px; isolation: isolate; }
.ac-hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; }
.ac-hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(5,7,15,.92) 0%, rgba(5,7,15,.72) 40%, rgba(5,7,15,.18) 74%, rgba(5,7,15,.08) 100%), linear-gradient(180deg, rgba(5,7,15,.35) 0%, rgba(5,7,15,0) 30%, rgba(5,7,15,0) 62%, var(--ac-bg)); }
@media (max-width: 860px) { .ac-hero::before { background: linear-gradient(180deg, rgba(5,7,15,.6), rgba(5,7,15,.82) 55%, var(--ac-bg)); } }
.ac-hero-inner { width: min(1180px, 100%); margin: 0 auto; display: grid; gap: 22px; }
.ac-hero-badge { justify-self: start; display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px 7px 8px; border-radius: 999px; font: 600 13.5px/1.2 var(--ac-body); color: #cfe9ff; background: rgba(0,229,255,.07); border: 1px solid rgba(0,229,255,.28); backdrop-filter: blur(6px); }
.ac-hero-badge b { padding: 3px 9px; border-radius: 999px; color: #03131a; background: var(--ac-cyan); font: 800 11px/1.2 var(--ac-mono); letter-spacing: .08em; }
.ac-hero-title { margin: 0; max-width: 980px; font: 800 clamp(42px, 8.4vw, 104px)/.95 var(--ac-display); letter-spacing: -.045em; }
.ac-hero-title .ac-word { display: inline-block; opacity: 0; transform: translateY(40px) rotate(4deg); filter: blur(8px); animation: ac-word .9s cubic-bezier(.2,.9,.3,1) forwards; }
@keyframes ac-word { to { opacity: 1; transform: none; filter: none; } }
.ac-gradient-text { background: linear-gradient(100deg, #8ff6ff 0%, #00e5ff 30%, #a78bfa 65%, #ff7ab6 100%); background-size: 200% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; animation: ac-word .9s cubic-bezier(.2,.9,.3,1) forwards, ac-sheen 6s linear infinite; }
@keyframes ac-sheen { to { background-position: 200% 0; } }
.ac-hero-lead { margin: 0; max-width: 680px; color: #c4d3ec; font-size: clamp(17px, 2vw, 21px); line-height: 1.6; opacity: 0; animation: ac-rise .9s .6s ease forwards; }
@keyframes ac-rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.ac-hero-ctas { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; opacity: 0; animation: ac-rise .9s .8s ease forwards; }
.ac-hero-note { color: var(--ac-muted); font-size: 14px; }
.ac-hero-proof { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 8px; opacity: 0; animation: ac-rise .9s 1s ease forwards; }
.ac-hero-proof div { display: grid; }
.ac-hero-proof strong { font: 800 30px/1 var(--ac-mono); color: #fff; }
.ac-hero-proof span { color: var(--ac-muted); font-size: 13px; }
.ac-sound-fab { position: fixed; right: 16px; bottom: 16px; z-index: 40; display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; font-size: 20px; cursor: pointer; background: rgba(16,24,42,.85); border: 1px solid var(--ac-line-strong); backdrop-filter: blur(8px); }
.ac-section { width: min(1180px, 100%); margin: 0 auto; padding: clamp(60px, 9vw, 120px) 16px; }
.ac-section-head { max-width: 760px; margin-bottom: 36px; }
.ac-section-title { margin: 0; font: 800 clamp(30px, 5vw, 56px)/1.02 var(--ac-display); letter-spacing: -.035em; }
.ac-section-lead { margin: 14px 0 0; color: var(--ac-muted); font-size: 18px; line-height: 1.6; }
/* Hidden only once the page's script runs: without it (or before it loads), everything stays readable. */
.is-animated [data-reveal] { opacity: 0; transform: translateY(36px); transition: opacity .9s cubic-bezier(.2,.9,.3,1), transform .9s cubic-bezier(.2,.9,.3,1); }
.is-animated [data-reveal].is-visible { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: .1s; } [data-reveal-delay="2"] { transition-delay: .2s; } [data-reveal-delay="3"] { transition-delay: .3s; }

/* teaser */
.ac-teaser-wrap { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 34px; align-items: start; }
@media (max-width: 900px) { .ac-teaser-wrap { grid-template-columns: 1fr; } }
.ac-teaser { display: grid; gap: 16px; padding: clamp(18px, 3vw, 28px); border-radius: 28px; background: linear-gradient(170deg, rgba(23,34,60,.85), rgba(10,15,28,.85)); border: 1px solid rgba(0,229,255,.25); box-shadow: 0 30px 80px rgba(0,0,0,.45), 0 0 0 1px rgba(0,0,0,.3), 0 0 80px rgba(0,229,255,.08); }
.ac-teaser-result { display: none; }
.ac-teaser-result.is-ok, .ac-teaser-result.is-bad { display: grid; gap: 10px; padding: 16px; border-radius: 18px; animation: ac-bubble .4s ease; }
.ac-teaser-result.is-ok { background: rgba(46,230,166,.08); border: 1px solid rgba(46,230,166,.3); }
.ac-teaser-result.is-bad { background: rgba(255,77,109,.08); border: 1px solid rgba(255,77,109,.3); }
.ac-teaser-verdict { margin: 0; font: 800 18px/1.3 var(--ac-display); }
.ac-teaser-numbers { margin: 0; font: 600 13px/1.4 var(--ac-mono); color: var(--ac-muted); }

/* journey */
.ac-journey { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 50px; }
@media (max-width: 860px) { .ac-journey { grid-template-columns: 1fr; } .ac-journey-rail { position: relative !important; top: 0 !important; } }
.ac-journey-rail { position: sticky; top: 110px; align-self: start; display: grid; gap: 10px; padding: 18px 18px 18px 46px; border-radius: 24px; background: rgba(10,15,28,.7); border: 1px solid var(--ac-line); }
.ac-journey-rail::before { content: ""; position: absolute; left: 25px; top: 30px; bottom: 30px; width: 2px; background: linear-gradient(180deg, var(--ac-cyan), var(--ac-violet)); opacity: .35; }
.ac-journey-dot { position: absolute; left: 18px; top: 0; width: 16px; height: 16px; border-radius: 50%; background: #fff; box-shadow: 0 0 0 4px rgba(0,229,255,.35), 0 0 24px var(--ac-cyan); transition: transform .6s cubic-bezier(.2,.9,.3,1.2); margin-top: -8px; }
.ac-station { position: relative; display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 12px; color: var(--ac-faint); font-weight: 700; transition: all .3s ease; }
.ac-station .ac-station-icon { font-size: 20px; filter: grayscale(1); transition: filter .3s; }
.ac-station.is-passed { color: var(--ac-muted); }
.ac-station.is-passed .ac-station-icon, .ac-station.is-active .ac-station-icon { filter: none; }
.ac-station.is-active { color: #fff; background: rgba(0,229,255,.09); box-shadow: inset 0 0 0 1px rgba(0,229,255,.35); }
.ac-journey-steps { display: grid; gap: 30vh; padding: 10vh 0 20vh; }
@media (max-width: 860px) { .ac-journey-steps { gap: 24px; padding: 0; } }
.ac-journey-step { padding: 26px; border-radius: 24px; background: rgba(17,26,46,.5); border: 1px solid var(--ac-line); opacity: .35; transform: scale(.97); transition: all .5s ease; }
.ac-journey-step.is-active { opacity: 1; transform: none; border-color: rgba(0,229,255,.35); box-shadow: 0 0 60px rgba(0,229,255,.08); }
.ac-journey-step h3 { margin: 0 0 8px; font: 800 26px/1.15 var(--ac-display); }
.ac-journey-step p { margin: 0; color: #c8d6ee; font-size: 17px; line-height: 1.65; }
.ac-journey-step .ac-journey-fact { margin-top: 12px; padding: 10px 14px; border-radius: 14px; font-family: var(--ac-mono); font-size: 13.5px; color: var(--ac-gold); background: rgba(255,209,102,.06); border: 1px solid rgba(255,209,102,.2); }

/* features */
.ac-features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 900px) { .ac-features { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .ac-features { grid-template-columns: 1fr; } }
.ac-feature { position: relative; overflow: hidden; padding: 24px; border-radius: 24px; background: rgba(17,26,46,.55); border: 1px solid var(--ac-line); transition: transform .3s ease, border-color .3s; transform-style: preserve-3d; }
.ac-feature::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(400px circle at var(--shine-x, 50%) var(--shine-y, 0%), rgba(0,229,255,.12), transparent 40%); opacity: 0; transition: opacity .3s; }
.ac-feature:hover { border-color: rgba(0,229,255,.35); }
.ac-feature:hover::after { opacity: 1; }
.ac-feature-icon { display: grid; place-items: center; width: 52px; height: 52px; margin-bottom: 14px; border-radius: 16px; font-size: 26px; background: rgba(0,229,255,.08); border: 1px solid rgba(0,229,255,.25); }
.ac-feature h3 { margin: 0 0 8px; font: 800 19px/1.25 var(--ac-display); }
.ac-feature p { margin: 0; color: var(--ac-muted); line-height: 1.6; font-size: 15px; }

/* floors on the landing */
.ac-floors { display: grid; gap: 14px; }
.ac-floor-card { --floor: #00e5ff; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 18px; align-items: center; padding: 18px 20px; border-radius: 22px; background: linear-gradient(100deg, color-mix(in srgb, var(--floor) 10%, transparent), rgba(17,26,46,.55) 45%); border: 1px solid color-mix(in srgb, var(--floor) 30%, transparent); transition: transform .3s ease; }
.ac-floor-card h3 { margin: 0; font: 800 20px/1.2 var(--ac-display); }
.ac-floor-card p { margin: 4px 0 0; color: var(--ac-muted); font-size: 14.5px; line-height: 1.5; }
.ac-floor-card .ac-nines { width: 64px; height: 64px; font-size: 11px; border-radius: 18px; }
.ac-floor-lessons { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.ac-floor-lessons span { padding: 4px 9px; border-radius: 999px; font-size: 12px; color: #cfdcf2; background: rgba(255,255,255,.05); border: 1px solid var(--ac-line); }
.ac-floor-lessons span.is-boss { color: #ffb3c1; border-color: rgba(255,77,109,.35); }
.ac-floor-count-lg { font: 800 22px/1 var(--ac-mono); color: var(--floor); text-align: right; }
.ac-floor-count-lg small { display: block; margin-top: 4px; font: 600 11px/1 var(--ac-mono); color: var(--ac-muted); }
@media (max-width: 640px) { .ac-floor-card { grid-template-columns: auto minmax(0, 1fr); } .ac-floor-count-lg { display: none; } }

/* outcomes */
.ac-outcomes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.ac-outcomes.is-stacked { grid-template-columns: 1fr; margin-top: 26px; }
@media (max-width: 760px) { .ac-outcomes { grid-template-columns: 1fr; } }
.ac-outcome { display: flex; gap: 14px; padding: 18px 20px; border-radius: 20px; background: rgba(46,230,166,.05); border: 1px solid rgba(46,230,166,.22); }
.ac-outcome span { font-size: 24px; }
.ac-outcome p { margin: 0; color: #d3e0f4; line-height: 1.6; }
.ac-outcome strong { display: block; color: #fff; font-size: 16.5px; margin-bottom: 2px; }

/* pricing & faq */
.ac-pricing { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 18px; }
@media (max-width: 860px) { .ac-pricing { grid-template-columns: 1fr; } }
.ac-price-card { display: grid; gap: 14px; align-content: start; padding: 28px; border-radius: 28px; background: rgba(17,26,46,.6); border: 1px solid var(--ac-line-strong); }
.ac-price-card.is-featured { background: radial-gradient(600px 240px at 0% 0%, rgba(255,209,102,.14), transparent 60%), linear-gradient(160deg, #1a1630, #0e1628); border-color: rgba(255,209,102,.45); box-shadow: 0 0 80px rgba(255,209,102,.1); }
.ac-price-card h3 { margin: 0; font: 800 24px/1.2 var(--ac-display); }
.ac-price { font: 800 44px/1 var(--ac-mono); }
.ac-price small { font-size: 15px; color: var(--ac-muted); font-weight: 600; }
.ac-price-card ul { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; color: #d3e0f4; }
.ac-price-card li::before { content: "✓ "; color: var(--ac-green); font-weight: 800; }
.ac-faq { display: grid; gap: 10px; max-width: 860px; }
.ac-faq details { padding: 18px 20px; border-radius: 18px; background: rgba(17,26,46,.55); border: 1px solid var(--ac-line); }
.ac-faq summary { cursor: pointer; font: 700 17px/1.4 var(--ac-body); list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.ac-faq summary::after { content: "+"; color: var(--ac-cyan); font-size: 22px; line-height: 1; transition: transform .2s; }
.ac-faq details[open] summary::after { transform: rotate(45deg); }
.ac-faq p { margin: 12px 0 0; color: var(--ac-muted); line-height: 1.65; }
.ac-final-cta { position: relative; overflow: hidden; padding: clamp(40px, 7vw, 80px) 24px; border-radius: 36px; text-align: center; background: radial-gradient(700px 300px at 50% 0%, rgba(0,229,255,.18), transparent 70%), linear-gradient(160deg, #111b33, #0a0f1e); border: 1px solid rgba(0,229,255,.25); }
.ac-final-cta h2 { margin: 0 auto 14px; max-width: 800px; font: 800 clamp(32px, 5.5vw, 62px)/1 var(--ac-display); letter-spacing: -.04em; }
.ac-final-cta p { margin: 0 auto 26px; max-width: 620px; color: var(--ac-muted); font-size: 18px; line-height: 1.6; }

/* glossary page */
.ac-glossary-page { min-height: 100vh; }
.ac-glossary-cta { margin-top: 40px; }
.ac-glossary { width: min(980px, 100%); margin: 0 auto; padding: calc(5rem + 44px) 16px 100px; }
.ac-glossary h1 { margin: 0; font: 800 clamp(34px, 6vw, 60px)/1 var(--ac-display); letter-spacing: -.04em; }
.ac-glossary-search { width: 100%; margin: 26px 0 10px; padding: 16px 18px; border-radius: 16px; color: var(--ac-text); font: 500 17px/1.3 var(--ac-body); background: rgba(17,26,46,.7); border: 2px solid var(--ac-line-strong); outline: none; }
.ac-glossary-search:focus { border-color: var(--ac-cyan); }
/* letters share the row (one line on a desktop), and wrap on a phone */
.ac-letters { display: flex; flex-wrap: wrap; gap: 5px; margin: 14px 0 30px; }
.ac-letters a { display: grid; place-items: center; flex: 1 1 28px; max-width: 40px; height: 34px; border-radius: 10px; font: 700 14px/1 var(--ac-mono); text-decoration: none; color: var(--ac-muted); background: rgba(255,255,255,.04); border: 1px solid var(--ac-line); }
.ac-letters a:hover { color: var(--ac-cyan); border-color: var(--ac-cyan); }
.ac-letter { margin-bottom: 28px; }
.ac-letter h2 { margin: 0 0 12px; font: 800 28px/1 var(--ac-mono); color: var(--ac-cyan); }
.ac-entry { scroll-margin-top: 100px; padding: 18px 20px; margin-bottom: 10px; border-radius: 18px; background: rgba(17,26,46,.55); border: 1px solid var(--ac-line); }
.ac-entry:target { border-color: var(--ac-cyan); box-shadow: 0 0 40px rgba(0,229,255,.15); }
.ac-entry h3 { margin: 0 0 6px; font: 800 19px/1.3 var(--ac-display); }
.ac-entry p { margin: 0; color: #cfdcf2; line-height: 1.65; }
.ac-entry .ac-entry-example { margin-top: 8px; color: var(--ac-muted); font-size: 14.5px; }
.ac-entry .ac-entry-example b { color: var(--ac-gold); }

@media (prefers-reduced-motion: reduce) {
  .ac-page *, .ac-page *::before, .ac-page *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .is-animated [data-reveal] { opacity: 1; transform: none; }
  .ac-hero-title .ac-word, .ac-hero-lead, .ac-hero-ctas, .ac-hero-proof { opacity: 1; transform: none; filter: none; }
}