*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:radial-gradient(1100px 640px at 50% -10%, #1a1f30 0%, var(--ink-900) 55%) fixed;color:var(--text-hi);font-family:var(--font-ui);-webkit-font-smoothing:antialiased;min-height:100vh}
.wrap{max-width:680px;margin:0 auto;padding:24px 20px 72px;min-height:100vh;display:flex;flex-direction:column}
/* lesson + quiz are full-card experiences (brand header hidden) — give them room
   to match the design-system reveal card, which renders ~760px wide. */
body[data-screen="lesson"] .wrap,
body[data-screen="quiz"] .wrap{max-width:820px}

/* brand header (welcome / packs / results) */
.brand{display:flex;flex-direction:column;align-items:center;gap:3px;margin:12px 0 2px}
.brand b{font-family:var(--font-display);font-weight:var(--fw-bold);font-size:22px;letter-spacing:-.02em}
.brand small{font-size:11px;letter-spacing:.06em;color:var(--text-mid)}
.brand.hide{display:none}
.lockup{display:flex;align-items:center;gap:9px}

.screen{flex:1;display:flex;flex-direction:column;animation:rise .45s ease both}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
/* respect users who opt out of motion — collapse every transition/animation */
@media (prefers-reduced-motion:reduce){*{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}

/* buttons */

.cta{display:flex;gap:12px;justify-content:center;margin-top:38px;flex-wrap:wrap}
.small{font-size:13px;color:var(--text-lo)}

/* welcome — design-system horizontal lockup, hero scale */
/* translateX optically centers the visible ink: the door art sits at x40-88 of its
   0-120 viewBox, so the 96px mark box carries ~31px of dead left padding that pushes
   the lockup's bounding-box center ~15px right of its visual center. */
.hero-lockup{display:flex;align-items:center;justify-content:center;gap:0;margin:6vh auto 0;transform:translateX(-15px)}
.hero-lockup .mark{margin-right:-7px}
.hero-lockup .wordmark{font-family:var(--font-display);font-weight:var(--fw-bold);font-size:44px;letter-spacing:-.03em;line-height:1;color:var(--text-hi)}
.hero-descriptor{text-align:center;margin:7px auto 0;font-size:13.5px;letter-spacing:.06em;color:var(--text-mid);white-space:nowrap}
.hero{margin-top:6vh;text-align:center}
.hero h2{font-family:var(--font-display);font-size:var(--fs-32);line-height:1.3;margin:24px auto 0;max-width:13em;font-weight:var(--fw-semibold)}
.hero h2 .hl{color:var(--accent-400)}
/* carousel now lives in the bottom foot (where the gentle note used to sit) */
.welcome-foot{margin-top:auto;padding-top:56px;text-align:center}
.welcome-foot .rule{display:block;width:30px;height:1px;background:var(--line-dark);margin:0 auto 24px}
.carousel{margin:0 auto;min-height:3em;max-width:25em;display:flex;align-items:center;justify-content:center;padding:0 8px}
.carousel .q{font-family:var(--font-serif);font-style:italic;color:var(--text-mid);font-size:var(--fs-16);line-height:1.55;transition:opacity .55s ease}
.carousel .q.fade{opacity:0}

/* pack picker */
.section-title{font-family:var(--font-display);font-size:24px;margin:18px 0 4px}
.section-sub{color:var(--text-mid);margin:0 0 18px;font-size:15px}
.pack{display:flex;align-items:center;gap:16px;width:100%;text-align:left;background:var(--ink-700);border:1px solid var(--line-dark);border-radius:var(--radius);padding:18px;margin-bottom:14px;cursor:pointer;transition:border .2s,transform .12s}
.pack:hover{border-color:var(--accent-500);transform:translateY(-2px)}
.pack .num{flex:none;width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-weight:var(--fw-bold);background:linear-gradient(135deg,#2a2350,#1c2740);color:var(--accent-500);border:1px solid var(--line-dark)}
.pack h3{margin:0 0 3px;font-size:17px}
.pack p{margin:0;color:var(--text-mid);font-size:var(--fs-14)}
.pack .count{margin-left:auto;color:var(--text-lo);font-size:13px;white-space:nowrap}

/* lesson + quiz card (in-card chrome, top-right cluster) — design-system reveal card */
.revealcard{background:var(--ink-800);border:1px solid var(--line-dark);border-radius:18px;padding:16px 30px 30px;max-width:620px;width:100%;margin:5vh auto 0;align-self:center}
.rc-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:14px}
/* modern back control (shared via backButton() in ui.js) */
.back-btn{flex:none;display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;border:1px solid var(--line-dark);background:transparent;color:var(--text-mid);cursor:pointer;transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease),transform .12s var(--ease)}
.back-btn svg{display:block;transition:transform .18s var(--ease)}
.back-btn:hover{color:var(--text-hi);border-color:color-mix(in srgb,var(--accent-400) 55%,var(--line-dark));background:var(--ink-700)}
.back-btn:hover svg{transform:translateX(-2px)}
.back-btn:active{transform:translateY(1px)}
.back-btn:focus-visible{outline:2px solid var(--accent-400);outline-offset:2px}
.rc-meta{display:flex;flex-direction:column;align-items:flex-end;gap:6px}
.rc-cat{font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-400);font-weight:600}
.rc-prog{display:flex;align-items:center;gap:7px}
.rc-bar{width:58px;height:2px;background:var(--ink-600);border-radius:99px;overflow:hidden}
.rc-bar>i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent-400),var(--teal));border-radius:99px;transition:width .4s ease}
.rc-count{font-size:9.5px;color:var(--text-lo);font-variant-numeric:tabular-nums}
/* scene — the CONTINUOUS element across reveal. It transitions in place (dim+blur)
   when .revealed is toggled, so the reveal flows smoothly from the resting state
   instead of hard-swapping. Replay reverses the same transition. */
.rc-scene{text-align:center;padding:2px 0 0;max-height:240px;overflow:clip;transition:max-height .5s var(--ease)}
.rc-line{font-family:var(--font-serif);font-size:22px;line-height:1.55;color:var(--text-hi);margin:0 auto;max-width:24em;transform-origin:top center;will-change:transform,opacity,filter;transition:opacity .45s var(--ease),filter .45s var(--ease),transform .45s var(--ease)}
/* revealed: the scene recedes IN PLACE using only composited properties
   (transform + opacity + blur) — NOT font-size/max-width, which re-wrap the text
   every frame and made the reveal jump. The freed space then collapses on one
   smooth axis via the wrapper's max-height, so the concept rises without bouncing. */
.revealed .rc-scene{max-height:48px}
.revealed .rc-line{opacity:.26;filter:blur(2px);transform:scale(.72)}

/* sense (prompt + reveal button) — shown until revealed, then removed from flow */
.rc-sense{display:flex;flex-direction:column;align-items:center;padding-top:34px}
.revealed .rc-sense{display:none}
.rc-prompt{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-lo);font-weight:600;margin:0}
.rc-revealbtn{appearance:none;border:none;cursor:pointer;font-family:var(--font-ui);font-weight:600;font-size:14px;padding:11px 20px;border-radius:11px;background:var(--grad-accent);color:#0c0c12;box-shadow:var(--glow);margin-top:14px;transition:filter .2s var(--ease),transform .12s var(--ease)}
.rc-revealbtn:hover{filter:brightness(1.06)}
.rc-revealbtn:active{transform:translateY(1px)}

/* concept — hidden until revealed; narrowed reading column, centered, fades up */
.rc-concept{display:none;margin:0 auto;text-align:center}
.revealed .rc-concept{display:block}
.rc-reveal{margin-top:12px;animation:fadeUp .5s ease both}
.rc-kicker{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-400);font-weight:600}
.rc-term{font-family:var(--font-serif);font-size:34px;font-weight:600;letter-spacing:-.01em;margin-top:8px}
.rc-def{color:var(--text-mid);font-size:15px;line-height:1.65;margin:14px auto 0;max-width:34em}

/* what's-happening / how-it-feels — iconed containers (give them weight) */
/* stacked (not side by side) — full-width list-style cards */
.rc-layers{display:grid;grid-template-columns:1fr;gap:12px;margin-top:26px;text-align:left;animation:fadeUp .5s ease .08s both}
.rc-lcard{display:flex;gap:12px;background:var(--ink-700);border:1px solid var(--line-dark);border-radius:14px;padding:16px 18px}
.rc-lic{flex:none;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;color:var(--accent-400);background:rgba(167,139,250,.12);border:1px solid rgba(167,139,250,.22)}
.rc-lcard b{display:block;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-lo);font-weight:600}
.rc-lcard p{margin:5px 0 0;font-size:14px;color:var(--text-mid);line-height:1.5}

/* a better response — two distinct cards (say = quote, opposite = named concept) */
.rc-resp-label{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-lo);font-weight:600;margin:30px 0 14px;animation:fadeUp .5s ease .16s both}
.rc-respgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px;text-align:left;animation:fadeUp .5s ease .16s both}
.rc-rcard{border-radius:14px;border:1px solid var(--line-dark);padding:16px 18px 18px}
.rc-rcard.say{background:rgba(94,234,212,.07);border-color:rgba(94,234,212,.22)}
.rc-rcard.opp{background:rgba(126,224,166,.06);border-color:rgba(126,224,166,.2);display:flex;flex-direction:column}
.rc-rhead{display:flex;align-items:center;gap:7px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;font-weight:700}
.rc-rcard.say .rc-rhead{color:var(--teal)}
.rc-rcard.opp .rc-rhead{color:var(--good)}
.rc-saytext{font-family:var(--font-serif);font-style:italic;font-size:17px;line-height:1.5;color:var(--text-hi);margin:12px 0 0}
.rc-opptext{font-family:var(--font-serif);font-size:23px;line-height:1.3;color:var(--text-hi);margin:auto 0;padding-top:12px}

.rc-cousins{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px;align-items:center;justify-content:center;animation:fadeUp .5s ease .24s both}
.rc-cousins .lbl{font-size:13px;color:var(--text-mid)}
.rc-cz{font-size:12.5px;padding:6px 12px;border-radius:99px;background:var(--ink-600);border:1px solid var(--line-dark)}
.rc-nav{display:flex;gap:10px;margin-top:30px;justify-content:center;animation:fadeUp .5s ease .3s both}
.rc-replay{display:inline-flex;align-items:center;gap:6px;appearance:none;cursor:pointer;font-family:var(--font-ui);font-weight:600;font-size:13px;padding:9px 16px;border-radius:10px;background:transparent;color:var(--text-mid);border:1px solid var(--line-dark);transition:.2s var(--ease)}
.rc-replay:hover{border-color:var(--accent-400);color:var(--text-hi)}
.rc-next{appearance:none;border:none;cursor:pointer;font-family:var(--font-ui);font-weight:600;font-size:13px;padding:9px 18px;border-radius:10px;background:var(--grad-accent);color:#0c0c12}

/* quiz */
.qscene{font-family:var(--font-serif);font-size:20px;line-height:1.5;margin:0 0 18px;text-align:center}
.opt{display:block;width:100%;text-align:left;background:var(--ink-600);border:1px solid var(--line-dark);color:var(--text-hi);padding:15px 16px;border-radius:13px;margin-bottom:11px;cursor:pointer;font-size:var(--fs-16);font-family:inherit;transition:border .15s,background .15s}
.opt:hover{border-color:var(--accent-500)}
.opt:disabled{cursor:default}
.opt.correct{border-color:var(--good);background:rgba(126,224,166,.12)}
.opt.wrong{border-color:var(--bad);background:rgba(244,124,140,.12)}
.qexpl{margin-top:6px;background:var(--ink-600);border:1px solid var(--line-dark);border-radius:13px;padding:14px 16px;color:var(--text-mid);font-size:15px;line-height:1.5;display:none}
.qexpl.show{display:block;animation:fadeUp .4s ease both}
.qexpl b{color:var(--text-hi)}

/* results / set-complete */
.result{text-align:center;margin-top:6vh}
.kick{font-size:13px;letter-spacing:.08em;text-transform:uppercase;font-weight:600}
.kick-teal{color:var(--teal)}
.kick-accent{color:var(--accent-400)}
.score-ring{font-family:var(--font-display);font-size:var(--fs-52);font-weight:var(--fw-semibold);margin:8px 0}
.result p{color:var(--text-mid);font-size:17px;max-width:26em;margin:6px auto 0;line-height:1.6}
.streak{display:inline-flex;gap:8px;align-items:center;background:var(--ink-700);border:1px solid var(--line-dark);padding:8px 14px;border-radius:999px;margin-top:18px;font-size:var(--fs-14);color:var(--text-mid)}
/* the "want more today?" offer the end-of-set quiz unlocks (spec §4) */
.offer{margin-top:34px}
.offer-q{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-lo);font-weight:600;margin-bottom:14px}
.offer .cta{margin-top:0}
.linklike{display:inline-block;margin-top:18px;background:none;border:none;color:var(--text-mid);font-family:inherit;font-size:14px;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.linklike:hover{color:var(--text-hi)}