/* ============================================================
   Tarot — A Complete Learning System
   Apple-inspired minimalist design system
   ============================================================ */

:root{
  /* color */
  --bg:        #ffffff;
  --bg-soft:   #fbfbfd;
  --bg-panel:  #f5f5f7;
  --bg-hover:  #f0f0f2;
  --ink:       #1d1d1f;
  --ink-soft:  #424245;
  --ink-mute:  #86868b;
  --ink-faint: #aeaeb2;
  --line:      #ececee;
  --line-soft: #f3f3f5;
  --accent:    #4b4b88;          /* calm indigo */
  --accent-ink:#3a3a6e;
  --accent-soft:#ececf6;
  --gold:      #b08d4f;          /* used only for certificate / seals */
  --good:      #2f8f5b;
  --good-soft: #e7f4ec;
  --bad:       #c2533f;
  --bad-soft:  #f8ece9;

  /* type */
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --serif: "New York", "Iowan Old Style", Georgia, "Times New Roman", serif;

  /* radius */
  --r-pill: 980px;
  --r-lg: 22px;
  --r-md: 16px;
  --r-sm: 11px;

  /* shadow */
  --sh-1: 0 1px 2px rgba(0,0,0,.04), 0 4px 14px rgba(0,0,0,.04);
  --sh-2: 0 2px 6px rgba(0,0,0,.05), 0 14px 40px rgba(0,0,0,.07);
  --sh-pop: 0 18px 60px rgba(0,0,0,.14);

  /* motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
  --t-fast: .22s;
  --t: .42s;
  --t-slow: .7s;

  --rail: 286px;
  --maxw: 920px;
}

*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; height:100%; }
body{
  font-family:var(--sans);
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  font-size:17px;
  line-height:1.6;
  letter-spacing:-0.01em;
  overflow:hidden;
}
::selection{ background:var(--accent-soft); }
a{ color:var(--accent); text-decoration:none; }
button{ font-family:inherit; }
h1,h2,h3,h4{ letter-spacing:-0.025em; font-weight:600; line-height:1.1; margin:0; }

/* ---------- ambient background ---------- */
.ambient{ position:fixed; inset:0; z-index:0; pointer-events:none; overflow:hidden; }
.ambient .orb{
  position:absolute; border-radius:50%; filter:blur(60px); opacity:.5;
  background:radial-gradient(circle at 30% 30%, rgba(180,180,220,.30), transparent 70%);
  animation:drift 26s var(--ease-soft) infinite alternate;
}
.ambient .orb.b{ background:radial-gradient(circle at 30% 30%, rgba(200,180,170,.22), transparent 70%); animation-duration:34s; }
.ambient .orb.c{ background:radial-gradient(circle at 30% 30%, rgba(170,195,205,.22), transparent 70%); animation-duration:30s; }
@keyframes drift{ from{ transform:translate(0,0) scale(1); } to{ transform:translate(40px,-30px) scale(1.15); } }

/* ============================================================
   App shell
   ============================================================ */
.app{ position:relative; z-index:1; display:flex; height:100vh; height:100dvh; }

/* ---------- sidebar ---------- */
.rail{
  width:var(--rail); flex:0 0 var(--rail); height:100%;
  background:rgba(251,251,253,.82); backdrop-filter:saturate(180%) blur(20px);
  border-right:1px solid var(--line);
  display:flex; flex-direction:column; z-index:40;
  transition:transform var(--t) var(--ease);
}
.rail__brand{ padding:22px 22px 14px; }
.rail__mark{ display:flex; align-items:center; gap:11px; cursor:pointer; }
.rail__glyph{
  width:30px; height:30px; border-radius:9px; flex:0 0 30px;
  background:var(--ink); color:#fff; display:grid; place-items:center;
  font-size:15px; font-weight:600;
}
.rail__title{ font-size:15px; font-weight:600; letter-spacing:-0.02em; }
.rail__title small{ display:block; font-size:11.5px; font-weight:400; color:var(--ink-mute); letter-spacing:0; }

.search{ padding:6px 16px 12px; }
.search__box{
  display:flex; align-items:center; gap:8px;
  background:var(--bg-panel); border-radius:var(--r-pill);
  padding:9px 14px; border:1px solid transparent; transition:.2s var(--ease);
}
.search__box:focus-within{ background:#fff; border-color:var(--line); box-shadow:var(--sh-1); }
.search__box svg{ width:15px; height:15px; color:var(--ink-mute); flex:0 0 auto; }
.search__box input{
  border:0; background:transparent; outline:0; width:100%;
  font-family:inherit; font-size:14px; color:var(--ink);
}
.search__results{ list-style:none; margin:6px 10px 0; padding:0; max-height:300px; overflow:auto; }
.search__results li{ padding:8px 12px; border-radius:10px; cursor:pointer; font-size:13.5px; color:var(--ink-soft); transition:.15s; }
.search__results li:hover{ background:var(--bg-hover); color:var(--ink); }
.search__results .sr-k{ font-size:11px; color:var(--ink-faint); text-transform:uppercase; letter-spacing:.06em; }
.search__results .sr-empty{ color:var(--ink-faint); font-size:13px; padding:8px 12px; }

.nav{ flex:1; overflow-y:auto; padding:6px 12px 18px; }
.nav::-webkit-scrollbar{ width:7px; }
.nav::-webkit-scrollbar-thumb{ background:#e2e2e6; border-radius:4px; }
.nav__item{
  display:flex; align-items:center; gap:11px; width:100%;
  padding:9px 14px; border-radius:11px; border:0; background:transparent;
  color:var(--ink-soft); font-size:14.5px; font-weight:450; cursor:pointer;
  text-align:left; transition:background var(--t-fast) var(--ease), color var(--t-fast);
}
.nav__item svg{ width:17px; height:17px; flex:0 0 17px; color:var(--ink-mute); transition:.2s; }
.nav__item:hover{ background:var(--bg-hover); color:var(--ink); }
.nav__item.active{ background:var(--accent-soft); color:var(--accent-ink); font-weight:550; }
.nav__item.active svg{ color:var(--accent); }
.nav__sec{ font-size:11px; font-weight:600; letter-spacing:.07em; text-transform:uppercase; color:var(--ink-faint); padding:16px 16px 7px; }

.nav__group{ }
.nav__toggle{ display:flex; align-items:center; justify-content:space-between; }
.nav__chev{ transition:transform .25s var(--ease); width:13px !important; height:13px !important; }
.nav__group.open .nav__chev{ transform:rotate(90deg); }
.nav__sub{ overflow:hidden; max-height:0; transition:max-height .4s var(--ease); }
.nav__group.open .nav__sub{ max-height:1600px; }
.nav__subitem{
  display:flex; align-items:center; gap:10px; width:100%; text-align:left;
  padding:7px 14px 7px 30px; border:0; background:transparent; cursor:pointer;
  font-size:13.5px; color:var(--ink-mute); border-radius:9px; transition:.15s;
}
.nav__subitem:hover{ background:var(--bg-hover); color:var(--ink); }
.nav__subitem.active{ color:var(--accent-ink); font-weight:550; }
.nav__dot{ width:7px; height:7px; border-radius:50%; border:1.5px solid var(--ink-faint); flex:0 0 7px; transition:.2s; }
.nav__subitem.done .nav__dot{ background:var(--good); border-color:var(--good); }
.nav__subitem.active .nav__dot{ border-color:var(--accent); }

.rail__foot{ padding:12px 18px 16px; border-top:1px solid var(--line); }
.rail__progress{ font-size:12px; color:var(--ink-mute); display:flex; justify-content:space-between; margin-bottom:7px; }
.bartrack{ height:6px; background:var(--bg-panel); border-radius:4px; overflow:hidden; }
.barfill{ height:100%; background:var(--accent); border-radius:4px; width:0; transition:width .8s var(--ease); }

/* ---------- mobile top bar ---------- */
.topbar{ display:none; }
.scrim{ display:none; }

/* ---------- main / view ---------- */
.main{ flex:1; height:100%; overflow-y:auto; scroll-behavior:smooth; position:relative; }
.main::-webkit-scrollbar{ width:10px; }
.main::-webkit-scrollbar-thumb{ background:#e2e2e6; border-radius:5px; }
.main::-webkit-scrollbar-thumb:hover{ background:#d2d2d6; }
.view{ min-height:100%; }
.wrap{ max-width:var(--maxw); margin:0 auto; padding:64px 40px 120px; }
.wrap--wide{ max-width:1120px; }

/* page transition */
@keyframes viewIn{ from{ opacity:0; transform:translateY(14px); } to{ opacity:1; transform:none; } }
.view.enter{ animation:viewIn var(--t) var(--ease); }

/* ============================================================
   Buttons & pills
   ============================================================ */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-size:15px; font-weight:500; line-height:1; cursor:pointer;
  padding:13px 24px; border-radius:var(--r-pill); border:1px solid transparent;
  background:var(--bg-panel); color:var(--ink);
  transition:transform var(--t-fast) var(--ease), background var(--t-fast), box-shadow var(--t-fast), color .2s;
  -webkit-tap-highlight-color:transparent;
}
.btn:hover{ background:var(--bg-hover); transform:translateY(-1px); box-shadow:var(--sh-1); }
.btn:active{ transform:scale(.97); box-shadow:none; }
.btn--primary{ background:var(--accent); color:#fff; }
.btn--primary:hover{ background:var(--accent-ink); }
.btn--ghost{ background:transparent; border-color:var(--line); }
.btn--ghost:hover{ background:var(--bg-soft); }
.btn--dark{ background:var(--ink); color:#fff; }
.btn--dark:hover{ background:#000; }
.btn--sm{ padding:9px 17px; font-size:13.5px; }
.btn--lg{ padding:16px 32px; font-size:17px; }
.btn[disabled]{ opacity:.4; pointer-events:none; }
.btn svg{ width:16px; height:16px; }

.pill{
  display:inline-flex; align-items:center; gap:6px; padding:5px 13px;
  border-radius:var(--r-pill); background:var(--bg-panel); color:var(--ink-soft);
  font-size:12.5px; font-weight:500; letter-spacing:.01em;
}
.pill--accent{ background:var(--accent-soft); color:var(--accent-ink); }
.pill--good{ background:var(--good-soft); color:var(--good); }

/* ============================================================
   Reveal on scroll
   ============================================================ */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in{ opacity:1; transform:none; }

/* ============================================================
   Welcome / hero
   ============================================================ */
.hero{ text-align:center; padding:46px 0 30px; }
.hero__eyebrow{ font-size:13px; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-mute); margin-bottom:22px; }
.hero h1{ font-size:clamp(40px,6.2vw,72px); font-weight:600; letter-spacing:-0.035em; line-height:1.02; }
.hero .sub{ font-family:var(--serif); font-size:clamp(20px,2.6vw,27px); color:var(--ink-soft); margin-top:18px; font-weight:400; font-style:italic; letter-spacing:-0.01em; }
.hero .by{ font-size:15px; color:var(--ink-mute); margin-top:20px; }
.hero__cta{ display:flex; gap:13px; justify-content:center; margin-top:38px; flex-wrap:wrap; }

.hero__ring{ display:flex; justify-content:center; margin:38px 0 8px; }

/* hero card fan */
.hero__fan{ display:flex; justify-content:center; margin:42px 0 30px; min-height:230px; }
.herofan{ position:relative; width:0; display:flex; justify-content:center; }
.herofan__card{
  position:absolute; top:0; left:-65px; width:130px; cursor:zoom-in;
  transform-origin:bottom center;
  animation:fanIn .9s var(--ease) both; animation-delay:calc(var(--i) * .09s + .1s);
}
.herofan__card img{
  width:100%; display:block; border-radius:10px; background:#fff;
  box-shadow:0 4px 14px rgba(0,0,0,.12), 0 14px 40px rgba(0,0,0,.12);
  transition:transform var(--t) var(--ease), box-shadow var(--t);
}
.herofan__card:hover{ z-index:20 !important; }
.herofan__card:hover img{ transform:translateY(-14px) scale(1.04); box-shadow:0 12px 30px rgba(0,0,0,.2), 0 24px 60px rgba(0,0,0,.16); }
@keyframes fanIn{ from{ opacity:0; transform:translateY(40px) rotate(0deg) scale(.8); } }
@media(max-width:560px){
  .hero__fan{ min-height:170px; }
  .herofan__card{ width:94px; left:-47px; }
}

/* ring */
.ring{ position:relative; }
.ring svg{ transform:rotate(-90deg); }
.ring__track{ stroke:var(--line); fill:none; }
.ring__fill{ stroke:var(--accent); fill:none; stroke-linecap:round; transition:stroke-dashoffset 1s var(--ease); }
.ring__label{ position:absolute; inset:0; display:grid; place-items:center; text-align:center; }
.ring__pct{ font-size:26px; font-weight:600; letter-spacing:-0.03em; }
.ring__sub{ font-size:11px; color:var(--ink-mute); }

/* ============================================================
   Section / dashboard cards
   ============================================================ */
.sec-head{ margin:62px 0 4px; }
.sec-head h2{ font-size:30px; font-weight:600; letter-spacing:-0.03em; }
.sec-head .meta{ color:var(--ink-mute); font-size:15px; margin-top:8px; }

.dash-sec{
  border:1px solid var(--line); border-radius:var(--r-lg); padding:30px 30px 26px;
  margin-top:22px; background:var(--bg-soft);
  transition:box-shadow var(--t) var(--ease), transform var(--t) var(--ease), border-color var(--t);
}
.dash-sec:hover{ box-shadow:var(--sh-2); transform:translateY(-2px); border-color:#e3e3e6; }
.dash-sec__top{ display:flex; align-items:center; gap:22px; }
.dash-sec__info{ flex:1; min-width:0; }
.dash-sec__kicker{ font-size:12px; font-weight:600; letter-spacing:.1em; text-transform:uppercase; color:var(--accent); }
.dash-sec__info h3{ font-size:23px; margin-top:6px; }
.dash-sec__info p{ color:var(--ink-mute); font-size:14.5px; margin:8px 0 0; }
.dash-sec__stats{ display:flex; gap:26px; margin-top:18px; }
.stat{ }
.stat b{ font-size:21px; font-weight:600; letter-spacing:-0.02em; display:block; }
.stat span{ font-size:12.5px; color:var(--ink-mute); }

.parts-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:13px; margin-top:24px; }
.part-card{
  border:1px solid var(--line); border-radius:var(--r-md); padding:17px 18px; background:#fff;
  cursor:pointer; transition:transform var(--t-fast) var(--ease), box-shadow var(--t-fast), border-color .2s;
  position:relative; overflow:hidden;
}
.part-card:hover{ transform:translateY(-3px); box-shadow:var(--sh-2); border-color:#e0e0e4; }
.part-card:active{ transform:translateY(-1px) scale(.99); }
.part-card__n{ font-size:11.5px; font-weight:600; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-faint); }
.part-card h4{ font-size:15.5px; margin:7px 0 0; letter-spacing:-0.02em; }
.part-card__bar{ height:4px; background:var(--bg-panel); border-radius:3px; margin-top:14px; overflow:hidden; }
.part-card__bar i{ display:block; height:100%; background:var(--accent); border-radius:3px; width:0; transition:width .8s var(--ease); }
.part-card__meta{ font-size:11.5px; color:var(--ink-mute); margin-top:8px; display:flex; justify-content:space-between; }
.part-card__check{ position:absolute; top:14px; right:14px; width:18px; height:18px; opacity:0; transform:scale(.5); transition:.4s var(--ease); color:var(--good); }
.part-card.complete .part-card__check{ opacity:1; transform:scale(1); }

/* tiles row (learn/games/practice quick links on home) */
.tiles{ display:grid; grid-template-columns:repeat(auto-fill,minmax(180px,1fr)); gap:14px; margin-top:22px; }
.tile{
  border:1px solid var(--line); border-radius:var(--r-md); padding:22px; background:#fff; cursor:pointer;
  transition:transform var(--t-fast) var(--ease), box-shadow var(--t-fast), border-color .2s; text-align:left;
}
.tile:hover{ transform:translateY(-3px); box-shadow:var(--sh-2); border-color:#e0e0e4; }
.tile__icon{ width:40px; height:40px; border-radius:11px; background:var(--accent-soft); color:var(--accent); display:grid; place-items:center; margin-bottom:14px; }
.tile__icon svg{ width:20px; height:20px; }
.tile h4{ font-size:16px; }
.tile p{ font-size:13px; color:var(--ink-mute); margin:6px 0 0; }

/* ============================================================
   Chapter page
   ============================================================ */
.chap-top{ display:flex; align-items:center; justify-content:space-between; gap:16px; margin-bottom:30px; }
.chap-crumbs{ font-size:13px; color:var(--ink-mute); }
.chap-crumbs b{ color:var(--ink-soft); font-weight:550; }
.chap-nav-mini{ display:flex; gap:8px; }
.iconbtn{
  width:38px; height:38px; border-radius:50%; border:1px solid var(--line); background:#fff;
  display:grid; place-items:center; cursor:pointer; color:var(--ink-soft);
  transition:transform var(--t-fast) var(--ease), background .2s, box-shadow .2s;
}
.iconbtn:hover{ background:var(--bg-soft); box-shadow:var(--sh-1); transform:translateY(-1px); }
.iconbtn:active{ transform:scale(.92); }
.iconbtn[disabled]{ opacity:.35; pointer-events:none; }
.iconbtn svg{ width:17px; height:17px; }

.chap-head{ margin-bottom:8px; }
.chap-head .num{ font-size:14px; font-weight:600; letter-spacing:.08em; text-transform:uppercase; color:var(--accent); }
.chap-head h1{ font-size:clamp(32px,4.6vw,48px); font-weight:600; letter-spacing:-0.035em; margin-top:12px; }
.chap-quote{
  font-family:var(--serif); font-style:italic; font-size:clamp(20px,2.5vw,25px);
  line-height:1.4; color:var(--ink-soft); margin:30px 0 8px; padding-left:22px;
  border-left:2px solid var(--accent); max-width:760px;
}

.lesson{ margin-top:30px; }
.lesson h3{ font-size:24px; margin:40px 0 14px; letter-spacing:-0.025em; }
.lesson p{ font-size:17.5px; line-height:1.72; color:var(--ink-soft); margin:0 0 18px; text-wrap:pretty; }
.lesson ul{ margin:0 0 20px; padding:0; list-style:none; }
.lesson ul li{ position:relative; padding:5px 0 5px 26px; font-size:17px; color:var(--ink-soft); line-height:1.6; }
.lesson ul li::before{ content:""; position:absolute; left:6px; top:15px; width:6px; height:6px; border-radius:50%; background:var(--accent); }

/* lesson section blocks (the modular cards) */
.block{
  margin-top:26px; border:1px solid var(--line); border-radius:var(--r-lg);
  padding:28px 30px; background:var(--bg-soft);
}
.block__label{ display:flex; align-items:center; gap:9px; font-size:12.5px; font-weight:600; letter-spacing:.08em; text-transform:uppercase; color:var(--accent); margin-bottom:16px; }
.block__label svg{ width:16px; height:16px; }
.block h3{ font-size:21px; margin-bottom:12px; }
.block p{ font-size:16.5px; color:var(--ink-soft); line-height:1.66; margin:0 0 14px; }
.block ul{ list-style:none; padding:0; margin:0 0 8px; }
.block ul li{ position:relative; padding:5px 0 5px 24px; font-size:16px; color:var(--ink-soft); }
.block ul li::before{ content:""; position:absolute; left:4px; top:14px; width:5px; height:5px; border-radius:50%; background:var(--accent); }

/* key ideas */
.keys{ display:grid; gap:10px; }
.keys__row{ display:flex; gap:12px; align-items:flex-start; padding:11px 0; border-bottom:1px solid var(--line-soft); }
.keys__row:last-child{ border-bottom:0; }
.keys__n{ width:24px; height:24px; flex:0 0 24px; border-radius:50%; background:var(--accent-soft); color:var(--accent-ink); font-size:12px; font-weight:600; display:grid; place-items:center; margin-top:1px; }
.keys__row p{ margin:0; font-size:16px; }

/* journal */
.journal textarea, .notes-area textarea{
  width:100%; min-height:130px; resize:vertical; border:1px solid var(--line);
  border-radius:var(--r-md); padding:16px 18px; font-family:inherit; font-size:16px;
  line-height:1.6; color:var(--ink); background:#fff; outline:0; transition:.2s var(--ease);
}
.journal textarea:focus, .notes-area textarea:focus{ border-color:var(--accent); box-shadow:0 0 0 4px var(--accent-soft); }
.journal__save{ display:flex; align-items:center; gap:12px; margin-top:12px; }
.saved-tag{ font-size:13px; color:var(--good); opacity:0; transition:opacity .3s; display:flex; align-items:center; gap:5px; }
.saved-tag.show{ opacity:1; }

/* affirmation */
.affirm{ text-align:center; padding:40px 30px; background:linear-gradient(180deg,#fbfbfd,#f5f5f7); border:1px solid var(--line); border-radius:var(--r-lg); margin-top:26px; }
.affirm__label{ font-size:12px; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color:var(--gold); margin-bottom:20px; }
.affirm p{ font-family:var(--serif); font-style:italic; font-size:22px; line-height:1.7; color:var(--ink); margin:0; }

/* complete bar */
.chap-foot{ display:flex; align-items:center; justify-content:space-between; gap:16px; margin-top:50px; padding-top:30px; border-top:1px solid var(--line); flex-wrap:wrap; }
.complete-btn.done{ background:var(--good); color:#fff; }
.complete-btn.done:hover{ background:#27794d; }

/* ============================================================
   Quiz
   ============================================================ */
.quiz__q{ margin-bottom:26px; }
.quiz__q.lock .opt{ pointer-events:none; }
.quiz__qhead{ display:flex; gap:11px; font-size:17px; font-weight:550; margin-bottom:14px; }
.quiz__qhead .qn{ color:var(--accent); font-weight:600; }
.opts{ display:grid; gap:9px; }
.opt{
  display:flex; align-items:flex-start; gap:13px; padding:14px 17px; border:1px solid var(--line);
  border-radius:var(--r-md); background:#fff; cursor:pointer; font-size:15.5px; color:var(--ink-soft);
  transition:transform var(--t-fast) var(--ease), border-color .2s, background .2s, box-shadow .2s;
  text-align:left; width:100%;
}
.opt:hover{ border-color:#dadade; background:var(--bg-soft); }
.opt:active{ transform:scale(.99); }
.opt__letter{
  width:24px; height:24px; flex:0 0 24px; border-radius:50%; border:1.5px solid var(--ink-faint);
  display:grid; place-items:center; font-size:12px; font-weight:600; color:var(--ink-mute); transition:.2s;
}
.opt.selected{ border-color:var(--accent); background:var(--accent-soft); }
.opt.selected .opt__letter{ border-color:var(--accent); background:var(--accent); color:#fff; }
.opt.correct{ border-color:var(--good); background:var(--good-soft); animation:glow .6s var(--ease); }
.opt.correct .opt__letter{ border-color:var(--good); background:var(--good); color:#fff; }
.opt.wrong{ border-color:var(--bad); background:var(--bad-soft); animation:shake .4s; }
.opt.wrong .opt__letter{ border-color:var(--bad); background:var(--bad); color:#fff; }
@keyframes glow{ 0%{ box-shadow:0 0 0 0 rgba(47,143,91,.4);} 100%{ box-shadow:0 0 0 10px rgba(47,143,91,0);} }
@keyframes shake{ 10%,90%{transform:translateX(-1px);} 20%,80%{transform:translateX(2px);} 30%,50%,70%{transform:translateX(-4px);} 40%,60%{transform:translateX(4px);} }
.opt__expl{ font-size:13.5px; color:var(--ink-mute); margin-top:8px; padding:0 17px; display:none; }
.opt__expl.show{ display:block; animation:viewIn .4s var(--ease); }

.quiz__result{
  display:flex; align-items:center; gap:18px; margin-top:24px; padding:22px 26px;
  border-radius:var(--r-lg); background:var(--bg-panel); opacity:0; max-height:0; overflow:hidden;
  transition:opacity .5s var(--ease), max-height .5s var(--ease), padding .4s;
}
.quiz__result.show{ opacity:1; max-height:260px; }
.quiz__score{ font-size:40px; font-weight:600; letter-spacing:-0.03em; color:var(--accent); min-width:96px; }
.quiz__score small{ font-size:20px; color:var(--ink-mute); }
.quiz__rtext h4{ font-size:18px; } .quiz__rtext p{ font-size:14px; color:var(--ink-mute); margin:5px 0 0; }

/* ============================================================
   Flashcards
   ============================================================ */
.tabs{ display:inline-flex; gap:4px; padding:4px; background:var(--bg-panel); border-radius:var(--r-pill); margin:6px 0 4px; flex-wrap:wrap; }
.tab{ border:0; background:transparent; padding:9px 18px; border-radius:var(--r-pill); font-size:13.5px; font-weight:500; color:var(--ink-mute); cursor:pointer; transition:.25s var(--ease); white-space:nowrap; }
.tab:hover{ color:var(--ink); }
.tab.active{ background:#fff; color:var(--ink); box-shadow:var(--sh-1); }

.fc-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(190px,1fr)); gap:16px; margin-top:28px; }
.flip{ perspective:1400px; height:260px; cursor:pointer; animation:settle .6s var(--ease) both; }
@keyframes settle{ from{ opacity:0; transform:translateY(18px) scale(.96);} to{ opacity:1; transform:none;} }
.flip__inner{ position:relative; width:100%; height:100%; transition:transform .7s var(--ease); transform-style:preserve-3d; }
.flip.flipped .flip__inner{ transform:rotateY(180deg); }
.flip__face{
  position:absolute; inset:0; backface-visibility:hidden; -webkit-backface-visibility:hidden;
  border-radius:var(--r-lg); border:1px solid var(--line); padding:22px; display:flex; flex-direction:column;
  background:#fff; box-shadow:var(--sh-1);
}
.flip:hover .flip__face{ box-shadow:var(--sh-2); }
.flip__front{ justify-content:space-between; }
.flip__suitglyph{ font-size:34px; }
.flip__cat{ font-size:11px; font-weight:600; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-faint); }
.flip__name{ font-size:21px; font-weight:600; letter-spacing:-0.02em; line-height:1.12; }
.flip__hint{ font-size:11.5px; color:var(--ink-faint); display:flex; align-items:center; gap:5px; }
.flip__back{ transform:rotateY(180deg); background:var(--bg-soft); justify-content:flex-start; gap:10px; }
.flip__back .lab{ font-size:11px; font-weight:600; letter-spacing:.06em; text-transform:uppercase; color:var(--accent); }
.flip__back .up{ font-size:14.5px; color:var(--ink); line-height:1.45; }
.flip__back .rev{ font-size:13px; color:var(--ink-mute); line-height:1.45; margin-top:auto; padding-top:10px; border-top:1px solid var(--line); }
.flip__back .rev b{ color:var(--ink-soft); font-weight:600; }

/* ============================================================
   Games
   ============================================================ */
.game-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:16px; margin-top:28px; }
.game-card{ border:1px solid var(--line); border-radius:var(--r-lg); padding:26px; background:#fff; cursor:pointer; transition:transform var(--t-fast) var(--ease), box-shadow var(--t-fast), border-color .2s; }
.game-card:hover{ transform:translateY(-4px); box-shadow:var(--sh-2); border-color:#e0e0e4; }
.game-card__icon{ width:46px; height:46px; border-radius:13px; background:var(--accent-soft); color:var(--accent); display:grid; place-items:center; margin-bottom:16px; font-size:22px; }
.game-card h4{ font-size:18px; } .game-card p{ font-size:13.5px; color:var(--ink-mute); margin:7px 0 0; }
.game-card__best{ font-size:12px; color:var(--good); margin-top:12px; font-weight:550; }

.gamebar{ display:flex; align-items:center; justify-content:space-between; gap:14px; margin:24px 0 8px; flex-wrap:wrap; }
.gamebar .gstat{ display:flex; gap:24px; }
.gstat b{ font-size:20px; font-weight:600; } .gstat span{ font-size:12px; color:var(--ink-mute); display:block; }

/* match / drag pieces */
.match-cols{ display:grid; grid-template-columns:1fr 1fr; gap:30px; margin-top:24px; }
.match-col h5{ font-size:12px; text-transform:uppercase; letter-spacing:.08em; color:var(--ink-mute); margin-bottom:12px; }
.chip{
  display:block; width:100%; text-align:left; padding:14px 16px; border:1px solid var(--line); border-radius:var(--r-md);
  background:#fff; margin-bottom:10px; cursor:pointer; font-size:15px; color:var(--ink-soft);
  transition:transform var(--t-fast) var(--ease), border-color .2s, background .2s, box-shadow .2s, opacity .4s;
}
.chip:hover{ border-color:#d8d8dc; box-shadow:var(--sh-1); }
.chip.sel{ border-color:var(--accent); background:var(--accent-soft); transform:scale(1.02); }
.chip.matched{ border-color:var(--good); background:var(--good-soft); color:var(--good); pointer-events:none; }
.chip.pulse{ animation:pulse .5s var(--ease); }
.chip.miss{ animation:shake .4s; }
@keyframes pulse{ 0%{transform:scale(1);} 50%{transform:scale(1.05);} 100%{transform:scale(1);} }

/* memory grid */
.mem-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:12px; margin-top:24px; max-width:560px; }
.mem-card{ perspective:1000px; aspect-ratio:3/4; cursor:pointer; }
.mem-inner{ position:relative; width:100%; height:100%; transition:transform .5s var(--ease); transform-style:preserve-3d; }
.mem-card.up .mem-inner, .mem-card.done .mem-inner{ transform:rotateY(180deg); }
.mem-face{ position:absolute; inset:0; backface-visibility:hidden; border-radius:var(--r-md); display:grid; place-items:center; padding:10px; text-align:center; }
.mem-back{ background:var(--accent); color:#fff; font-size:22px; }
.mem-front{ background:#fff; border:1px solid var(--line); transform:rotateY(180deg); font-size:14px; font-weight:550; color:var(--ink); }
.mem-card.done .mem-front{ border-color:var(--good); background:var(--good-soft); color:var(--good); }

/* sequence game */
.seq-pool, .seq-slots{ display:flex; flex-wrap:wrap; gap:10px; margin-top:16px; min-height:90px; padding:14px; border:1px dashed var(--line); border-radius:var(--r-md); background:var(--bg-soft); }
.seq-slots{ border-style:solid; background:#fff; }
.seq-tile{
  padding:12px 15px; border:1px solid var(--line); border-radius:var(--r-sm); background:#fff; cursor:grab;
  font-size:14px; font-weight:550; user-select:none; transition:transform var(--t-fast) var(--ease), box-shadow .2s, border-color .2s;
}
.seq-tile:hover{ box-shadow:var(--sh-1); transform:translateY(-2px); }
.seq-tile.dragging{ opacity:.4; }
.seq-tile.correct{ border-color:var(--good); background:var(--good-soft); }
.seq-tile.wrong{ border-color:var(--bad); background:var(--bad-soft); }
.seq-tile .sn{ color:var(--ink-faint); font-size:11px; margin-right:6px; }

/* build a spread */
.spread-build{ display:grid; grid-template-columns:1fr 320px; gap:30px; margin-top:24px; }
@media(max-width:760px){ .spread-build{ grid-template-columns:1fr; } }
.spread-slots{ display:flex; flex-direction:column; gap:12px; }
.spread-slot{ border:1px dashed var(--line); border-radius:var(--r-md); padding:16px 18px; min-height:74px; display:flex; align-items:center; gap:14px; transition:.25s var(--ease); background:var(--bg-soft); }
.spread-slot.over{ border-color:var(--accent); background:var(--accent-soft); }
.spread-slot.filled{ border-style:solid; border-color:var(--good); background:#fff; }
.spread-slot__pos{ font-size:12px; font-weight:600; color:var(--accent); width:120px; flex:0 0 120px; }
.spread-pool{ display:flex; flex-direction:column; gap:10px; }

/* ============================================================
   Practice tools
   ============================================================ */
.tool-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(230px,1fr)); gap:16px; margin-top:26px; }

.draw-stage{ display:flex; flex-direction:column; align-items:center; gap:26px; margin-top:30px; }
.cardrow{ display:flex; gap:18px; justify-content:center; flex-wrap:wrap; perspective:1800px; }
.drawslot{ display:flex; flex-direction:column; align-items:center; width:170px; }
.tcard{ width:170px; height:296px; }
.tcard__inner{ position:relative; width:100%; height:100%; transition:transform .8s var(--ease); transform-style:preserve-3d; }
.tcard.reveal-on .tcard__inner{ transform:rotateY(180deg); }
.tcard__face{ position:absolute; inset:0; backface-visibility:hidden; -webkit-backface-visibility:hidden; border-radius:12px; overflow:hidden; box-shadow:var(--sh-2); }
.tcard__face img{ width:100%; height:100%; object-fit:cover; display:block; border-radius:12px; }
.tcard__back{ }
.tcard__front{ transform:rotateY(180deg); background:#fff; }
.tcard__front.rev img{ transform:rotate(180deg); }
.drawcap{ text-align:center; margin-top:14px; width:100%; }
.drawcap .pos{ font-size:11px; font-weight:600; letter-spacing:.07em; text-transform:uppercase; color:var(--accent); }
.drawcap .nm{ font-size:16px; font-weight:600; letter-spacing:-0.01em; margin-top:5px; opacity:0; transition:opacity .5s var(--ease); }
.drawcap .kw{ font-size:12.5px; color:var(--ink-mute); line-height:1.4; margin-top:4px; opacity:0; transition:opacity .5s var(--ease); }
.drawcap .rv{ font-size:11px; font-weight:600; color:var(--gold); margin-top:4px; opacity:0; transition:opacity .5s; }
.drawslot.shown .nm,.drawslot.shown .kw,.drawslot.shown .rv{ opacity:1; }
.tcard.dealing{ animation:deal .6s var(--ease) both; }
@keyframes deal{ from{ opacity:0; transform:translateY(-46px) rotate(-7deg) scale(.78); } to{ opacity:1; transform:none; } }

.yn-result{ text-align:center; margin-top:30px; opacity:0; transition:opacity .6s var(--ease); }
.yn-result.show{ opacity:1; }
.yn-verdict{ font-size:54px; font-weight:600; letter-spacing:-0.04em; }
.yn-verdict.yes{ color:var(--good); } .yn-verdict.no{ color:var(--bad); } .yn-verdict.maybe{ color:var(--gold); }

.daily-card{ display:flex; gap:30px; align-items:center; margin-top:26px; flex-wrap:wrap; }
@media(max-width:620px){ .daily-card{ justify-content:center; text-align:center; } }

/* ============================================================
   Certificate
   ============================================================ */
.cert-gate{ }
.checklist{ display:grid; gap:11px; margin-top:22px; }
.check-item{ display:flex; align-items:center; gap:14px; padding:15px 18px; border:1px solid var(--line); border-radius:var(--r-md); background:#fff; cursor:pointer; transition:.2s var(--ease); }
.check-item:hover{ background:var(--bg-soft); }
.check-box{ width:24px; height:24px; flex:0 0 24px; border-radius:8px; border:1.5px solid var(--ink-faint); display:grid; place-items:center; transition:.25s var(--ease); color:#fff; }
.check-item.on .check-box{ background:var(--good); border-color:var(--good); }
.check-item.on .check-box svg{ opacity:1; transform:scale(1); }
.check-box svg{ width:14px; height:14px; opacity:0; transform:scale(.4); transition:.25s var(--ease); }
.check-item p{ margin:0; font-size:15.5px; }

.certificate{
  background:linear-gradient(160deg,#ffffff,#fbfaf7); border:1px solid #e8e2d4; border-radius:8px;
  padding:62px 60px; text-align:center; position:relative; margin-top:30px;
  box-shadow:var(--sh-2); aspect-ratio:1.414/1; max-width:900px; margin-left:auto; margin-right:auto;
  display:flex; flex-direction:column; justify-content:center;
}
.certificate::before{ content:""; position:absolute; inset:16px; border:1px solid #e0d8c4; border-radius:4px; pointer-events:none; }
.cert__seal{ width:78px; height:78px; border-radius:50%; border:2px solid var(--gold); color:var(--gold); display:grid; place-items:center; font-size:34px; margin:0 auto 22px; }
.cert__eyebrow{ font-size:12px; letter-spacing:.22em; text-transform:uppercase; color:var(--gold); font-weight:600; }
.cert__title{ font-family:var(--serif); font-size:clamp(28px,4vw,42px); margin:16px 0 6px; letter-spacing:-0.01em; }
.cert__name{ font-family:var(--serif); font-size:clamp(30px,5vw,52px); font-style:italic; color:var(--ink); margin:26px 0; border-bottom:1px solid #e3dcc9; display:inline-block; padding:0 30px 12px; }
.cert__body{ font-size:15px; color:var(--ink-soft); max-width:540px; margin:0 auto; line-height:1.6; }
.cert__foot{ display:flex; justify-content:space-between; margin-top:38px; font-size:12.5px; color:var(--ink-mute); }
.cert__foot b{ display:block; color:var(--ink); font-family:var(--serif); font-size:15px; margin-bottom:3px; }

.nameform{ display:flex; gap:12px; margin-top:20px; flex-wrap:wrap; align-items:center; }
.nameform input{ flex:1; min-width:220px; border:1px solid var(--line); border-radius:var(--r-pill); padding:13px 22px; font-family:inherit; font-size:16px; outline:0; transition:.2s; }
.nameform input:focus{ border-color:var(--accent); box-shadow:0 0 0 4px var(--accent-soft); }

/* ============================================================
   Card images, lightbox, galleries
   ============================================================ */
.cardimg{
  display:block; width:100%; height:auto; border-radius:10px;
  box-shadow:0 2px 8px rgba(0,0,0,.10), 0 10px 30px rgba(0,0,0,.08);
  background:#fff; transition:transform var(--t-fast) var(--ease), box-shadow var(--t-fast), filter .3s;
  -webkit-user-drag:none; user-select:none;
}
[data-lb]{ cursor:zoom-in; }
[data-lb]:hover{ transform:translateY(-3px); box-shadow:0 6px 16px rgba(0,0,0,.16), 0 18px 44px rgba(0,0,0,.12); }
.cardimg.is-rev{ transform:rotate(180deg); }
[data-lb].is-rev:hover{ transform:rotate(180deg) translateY(3px); }

/* chapter card strip */
.cardstrip{ margin:30px 0 6px; }
.cardstrip__head{ display:flex; align-items:center; gap:9px; font-size:12.5px; font-weight:600; letter-spacing:.08em; text-transform:uppercase; color:var(--accent); margin-bottom:16px; }
.cardstrip__rail{ display:flex; gap:14px; overflow-x:auto; padding:6px 2px 16px; scroll-snap-type:x proximity; }
.cardstrip__rail::-webkit-scrollbar{ height:7px; }
.cardstrip__rail::-webkit-scrollbar-thumb{ background:#e2e2e6; border-radius:4px; }
.cardstrip__item{ flex:0 0 132px; scroll-snap-align:start; animation:settle .6s var(--ease) both; }
.cardstrip__item .cap{ font-size:11.5px; color:var(--ink-mute); text-align:center; margin-top:8px; line-height:1.25; }
.cardstrip--grid .cardstrip__rail{ flex-wrap:wrap; overflow:visible; }

/* lightbox */
.lightbox{ position:fixed; inset:0; z-index:300; display:none; }
.lightbox.open{ display:block; }
.lightbox__scrim{ position:absolute; inset:0; background:rgba(20,20,24,.62); backdrop-filter:blur(6px); animation:fadeIn .3s var(--ease); }
@keyframes fadeIn{ from{opacity:0} to{opacity:1} }
.lightbox__inner{
  position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
  display:flex; gap:34px; align-items:center; background:#fff; border-radius:22px;
  padding:30px; max-width:760px; width:calc(100% - 40px); max-height:90vh; overflow:auto;
  box-shadow:var(--sh-pop); animation:lbIn .45s var(--ease);
}
@keyframes lbIn{ from{ opacity:0; transform:translate(-50%,-46%) scale(.94);} to{ opacity:1; transform:translate(-50%,-50%) scale(1);} }
.lightbox__card{ flex:0 0 230px; }
.lightbox__img{ width:230px; }
.lightbox__meta{ flex:1; min-width:0; }
.lightbox__meta .lb-cat{ font-size:12px; font-weight:600; letter-spacing:.08em; text-transform:uppercase; color:var(--accent); }
.lightbox__meta h3{ font-size:28px; margin:7px 0 18px; letter-spacing:-0.02em; }
.lb-row{ margin-bottom:14px; }
.lb-lab{ font-size:11px; font-weight:600; letter-spacing:.06em; text-transform:uppercase; color:var(--ink-faint); display:block; margin-bottom:3px; }
.lb-row p{ margin:0; font-size:15px; color:var(--ink-soft); line-height:1.5; }
.lightbox__close{ position:absolute; top:14px; right:18px; border:0; background:transparent; font-size:30px; line-height:1; color:var(--ink-mute); cursor:pointer; transition:.2s; }
.lightbox__close:hover{ color:var(--ink); transform:scale(1.1); }
@media(max-width:620px){ .lightbox__inner{ flex-direction:column; gap:18px; padding:20px; } .lightbox__card{ flex:none; } .lightbox__img{ width:160px; } }

/* flashcards with images */
.flip{ height:auto; aspect-ratio:1 / 1.84; }
.flip__face{ overflow:hidden; }
.flip__front{ padding:0; }
.fc-imgwrap{ flex:1 1 auto; min-height:0; width:100%; background:#f0f0f2; display:flex; }
.fc-imgwrap img{ width:100%; height:100%; object-fit:cover; object-position:top center; display:block; border-radius:var(--r-lg) var(--r-lg) 0 0; box-shadow:none; }
.fc-cardname{ flex:0 0 auto; padding:12px 15px 14px; background:#fff; }
.fc-cardname .nm{ font-size:15.5px; font-weight:600; letter-spacing:-0.01em; line-height:1.14; }
.fc-cardname .ct{ font-size:10.5px; color:var(--ink-faint); text-transform:uppercase; letter-spacing:.06em; margin-top:3px; }
.flip__back{ padding:20px; overflow:auto; }

/* library detail layout reused via lightbox */

.lede{ font-size:19px; color:var(--ink-soft); line-height:1.6; max-width:680px; margin-top:14px; text-wrap:pretty; }
.page-title{ font-size:clamp(30px,4.4vw,44px); font-weight:600; letter-spacing:-0.035em; }
.empty{ color:var(--ink-faint); font-size:15px; padding:30px 0; }
.divider{ height:1px; background:var(--line); margin:40px 0; border:0; }
.countup{ font-variant-numeric:tabular-nums; }

/* confetti */
.confetti{ position:fixed; inset:0; pointer-events:none; z-index:200; overflow:hidden; }
.confetti i{ position:absolute; width:9px; height:14px; top:-20px; opacity:.9; animation:fall 2.6s var(--ease-soft) forwards; }
@keyframes fall{ to{ transform:translateY(110vh) rotate(540deg); opacity:0; } }

/* ============================================================
   responsive
   ============================================================ */
@media(max-width:900px){
  body{ overflow:auto; }
  .topbar{
    display:flex; align-items:center; gap:14px; position:sticky; top:0; z-index:50;
    height:54px; padding:0 16px; background:rgba(251,251,253,.86); backdrop-filter:saturate(180%) blur(20px);
    border-bottom:1px solid var(--line);
  }
  .topbar__burger{ width:38px; height:38px; border-radius:10px; border:0; background:transparent; display:grid; place-items:center; cursor:pointer; }
  .topbar__burger svg{ width:22px; height:22px; }
  .topbar__title{ font-size:15px; font-weight:600; }
  .app{ display:block; height:auto; }
  .rail{
    position:fixed; top:0; left:0; bottom:0; transform:translateX(-100%); box-shadow:var(--sh-pop);
  }
  .rail.open{ transform:none; }
  .scrim{ position:fixed; inset:0; background:rgba(0,0,0,.28); z-index:35; opacity:0; pointer-events:none; transition:opacity .3s; }
  .scrim.show{ display:block; opacity:1; pointer-events:auto; }
  .main{ height:auto; overflow:visible; }
  .wrap{ padding:30px 20px 90px; }
}
@media(max-width:560px){
  .wrap{ padding:24px 16px 80px; }
  .match-cols{ grid-template-columns:1fr; gap:20px; }
  .mem-grid{ grid-template-columns:repeat(3,1fr); }
  .dash-sec{ padding:22px 20px; }
  .dash-sec__top{ flex-direction:column; align-items:flex-start; gap:16px; }
  .block{ padding:22px 20px; }
  .certificate{ padding:40px 26px; aspect-ratio:auto; }
}

/* ============================================================
   reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
  .ambient{ display:none; }
  .reveal{ opacity:1 !important; transform:none !important; }
}

/* ============================================================
   print (certificate)
   ============================================================ */
@media print{
  .rail, .topbar, .scrim, .ambient, .chap-foot, .cert-actions, .nav, .no-print{ display:none !important; }
  body, .app, .main{ overflow:visible; height:auto; }
  .wrap{ padding:0; max-width:none; }
  .certificate{ box-shadow:none; border:1px solid #d8d0bd; page-break-inside:avoid; margin:0; max-width:none; width:100%; }
  @page{ size:landscape; margin:14mm; }
}