/* ═══════════════════════════════════════════════════════════
   CLAUDE CODE QUEST
   Aesthetic: Warm editorial meets soft dark UI
   Fonts: Outfit (body) + JetBrains Mono (code) + Rubik (display)
   Desktop-first. No em dashes. No terminal commands.
   ═══════════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;700&family=Rubik:wght@400;500;600;700;800;900&display=swap');

*{margin:0;padding:0;box-sizing:border-box}

:root{
  --bg:#0C0A09;
  --bg2:#1C1917;
  --bg3:#292524;
  --bg4:#3F3A36;
  --claude:#E8714A;
  --claude-glow:rgba(232,113,74,.15);
  --claude-bright:#FF8C5A;
  --gold:#F59E0B;
  --gold-glow:rgba(245,158,11,.12);
  --emerald:#10B981;
  --emerald-glow:rgba(16,185,129,.1);
  --sky:#38BDF8;
  --rose:#FB7185;
  --cream:#FAF7F2;
  --cream2:#E7E0D6;
  --cream3:#C4BCB0;
  --stone:#78716C;
  --stone2:#57534E;
  --r:14px;
  --r2:20px;
  --mono:'JetBrains Mono',monospace;
  --sans:'Outfit',sans-serif;
  --display:'Rubik',sans-serif;
}

html{scroll-behavior:smooth;font-size:16px;overflow-x:hidden}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--cream);
  min-height:100vh;
  line-height:1.75;
  overflow-x:hidden;
  max-width:100vw;
}
body::before{
  content:'';position:fixed;inset:0;z-index:-1;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%,rgba(232,113,74,.05),transparent),
    radial-gradient(ellipse 60% 50% at 80% 90%,rgba(245,158,11,.03),transparent),
    var(--bg);
}

::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--bg4);border-radius:3px}

/* ═════ TOPBAR ═════ */
.topbar{
  position:fixed;top:0;right:0;left:0;z-index:100;
  height:52px;display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;
  background:rgba(12,10,9,.92);
  backdrop-filter:blur(24px) saturate(1.4);
  border-bottom:1px solid rgba(255,255,255,.04);
  transition:box-shadow .3s ease;
}
.topbar.scrolled{
  box-shadow:0 4px 24px rgba(0,0,0,.4),0 1px 0 rgba(232,113,74,.06);
}
.topbar-brand{display:flex;align-items:center;gap:10px}
.topbar-right{display:flex;align-items:center;gap:8px}
.topbar-logo{width:28px;height:28px;border-radius:7px;box-shadow:0 0 16px rgba(232,113,74,.15)}
.topbar-name{
  font-family:var(--display);font-weight:800;font-size:.88rem;
  background:linear-gradient(135deg,var(--claude),var(--gold));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  letter-spacing:-.02em;
}
.topbar-stats{display:flex;align-items:center;gap:14px}
.topbar-left{display:flex;align-items:center;gap:14px}
.xp-pill{
  display:flex;align-items:center;gap:7px;
  background:var(--bg2);border:1px solid var(--bg4);
  padding:3px 12px 3px 5px;border-radius:100px;
  font-family:var(--mono);font-size:.72rem;color:var(--gold);
}
.xp-pill .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--gold);box-shadow:0 0 8px var(--gold);
  animation:blink 2s ease infinite;
}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.4}}
.xp-bar{width:72px;height:3px;background:var(--bg4);border-radius:2px;overflow:hidden}
.xp-fill{height:100%;background:linear-gradient(90deg,var(--claude),var(--gold));border-radius:2px;transition:width .8s cubic-bezier(.4,0,.2,1)}
.lvl-badge{
  font-family:var(--mono);font-weight:700;font-size:.65rem;
  color:var(--bg);background:var(--claude);
  padding:2px 9px;border-radius:100px;letter-spacing:.05em;
}

/* ═════ LAYOUT ═════ */
.sidebar{
  position:fixed;top:52px;right:0;bottom:0;
  width:240px;background:var(--bg2);
  border-left:1px solid rgba(255,255,255,.03);
  padding:20px 10px;overflow-y:auto;z-index:50;
}
.sidebar-label{
  font-family:var(--mono);font-size:.58rem;font-weight:700;
  color:var(--stone);letter-spacing:.15em;
  text-transform:uppercase;padding:0 10px;margin-bottom:14px;
}

/* ═════ NAV LIST + PROGRESS LINE ═════ */
.nav-list{list-style:none;position:relative}
.nav-list::before{
  content:'';position:absolute;top:18px;right:20px;bottom:18px;
  width:2px;border-radius:1px;
  background:linear-gradient(180deg,var(--emerald) var(--progress,0%),var(--bg4) var(--progress,0%));
  z-index:0;
}
.nav-item{
  display:flex;align-items:center;gap:9px;
  padding:7px 10px;border-radius:9px;
  cursor:pointer;margin-bottom:1px;
  font-size:.8rem;font-weight:500;color:var(--stone);
  transition:all .2s ease;
  position:relative;z-index:1;
}
.nav-item:hover{background:var(--bg3);color:var(--cream2)}
.nav-item.active{background:var(--claude-glow);color:var(--claude-bright);font-weight:600}
.nav-item.active::after{
  content:'';position:absolute;right:-10px;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:2px;
  background:var(--claude);
  box-shadow:0 0 8px rgba(232,113,74,.4);
}
.nav-item.done{color:var(--emerald)}
.nav-item.locked{opacity:.25;pointer-events:none}
.nav-dot{
  width:22px;height:22px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:.6rem;font-weight:700;font-family:var(--mono);
  background:var(--bg4);color:var(--stone);flex-shrink:0;transition:all .2s;
}
.nav-item.active .nav-dot{background:var(--claude);color:#fff;box-shadow:0 0 10px rgba(232,113,74,.3)}
.nav-item.done .nav-dot{background:var(--emerald);color:#fff}

/* ═════ MAIN ═════ */
.main-wrapper{
  margin-right:240px;display:flex;justify-content:center;
  padding-top:52px;min-height:100vh;
}
.main{padding:40px 48px 100px;max-width:820px;width:100%}
.view{display:none}
.view.on{display:block;animation:fadeUp .45s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

/* ═════ STAGGERED CARD ENTRANCE ═════ */
.view.on > *{
  opacity:0;
  animation:cardIn .5s ease both;
}
.view.on > :nth-child(1){animation-delay:.0s}
.view.on > :nth-child(2){animation-delay:.05s}
.view.on > :nth-child(3){animation-delay:.1s}
.view.on > :nth-child(4){animation-delay:.15s}
.view.on > :nth-child(5){animation-delay:.2s}
.view.on > :nth-child(6){animation-delay:.25s}
.view.on > :nth-child(7){animation-delay:.3s}
.view.on > :nth-child(8){animation-delay:.35s}
.view.on > :nth-child(9){animation-delay:.4s}
.view.on > :nth-child(10){animation-delay:.45s}
.view.on > :nth-child(11){animation-delay:.5s}
.view.on > :nth-child(12){animation-delay:.55s}

@keyframes cardIn{
  from{opacity:0;transform:translateY(18px)}
  to{opacity:1;transform:none}
}

/* ═════ CHAPTER HEADER ═════ */
.ch-tag{
  display:inline-block;
  font-family:var(--mono);font-size:.62rem;font-weight:700;
  color:var(--claude);background:var(--claude-glow);
  padding:3px 11px;border-radius:100px;
  letter-spacing:.08em;margin-bottom:14px;
}
.ch-h{
  font-family:var(--display);font-weight:900;
  font-size:2.1rem;line-height:1.15;
  letter-spacing:-.03em;margin-bottom:8px;
}
.ch-sub{font-size:.95rem;color:var(--cream3);line-height:1.7;margin-bottom:36px}

/* ═════ CARDS ═════ */
.card{
  background:var(--bg2);
  border:1px solid rgba(255,255,255,.04);
  border-radius:var(--r2);
  padding:28px;margin-bottom:16px;
  position:relative;overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card::before{
  content:'';position:absolute;top:0;right:0;left:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.05),transparent);
}
.card:hover{
  transform:translateY(-2px);
  border-color:rgba(232,113,74,.08);
  box-shadow:0 8px 24px rgba(0,0,0,.2);
}
.card h3{
  font-family:var(--display);font-weight:700;
  font-size:1.08rem;margin-bottom:10px;letter-spacing:-.01em;
}
.card p{font-size:.9rem;color:var(--cream3);line-height:1.8}
.card ul{padding-right:18px;margin:8px 0}
.card li{font-size:.9rem;color:var(--cream3);margin-bottom:5px}
.card-icon{font-size:1.6rem;margin-bottom:12px;display:block}

/* ═════ EXAMPLE VIDEO ═════ */
.example-video-card{
  background:linear-gradient(135deg,var(--bg2),rgba(232,113,74,.03));
  border-color:rgba(232,113,74,.1);
}
.example-badge{
  font-family:var(--mono);font-size:.7rem;font-weight:700;
  color:var(--gold);background:var(--gold-glow);
  display:inline-block;padding:4px 12px;border-radius:100px;
  margin-bottom:12px;letter-spacing:.04em;
}
.example-video{
  width:100%;border-radius:var(--r);
  box-shadow:0 8px 32px rgba(0,0,0,.4);
  border:1px solid rgba(255,255,255,.06);
}

/* ═════ INSIGHT BOX ═════ */
.insight{
  background:linear-gradient(135deg,rgba(232,113,74,.05),rgba(245,158,11,.03));
  border:1px solid rgba(232,113,74,.1);
  border-radius:var(--r2);
  padding:24px 28px;margin-bottom:16px;
  position:relative;
  transition:transform .25s ease,box-shadow .25s ease;
}
.insight:hover{
  transform:translateY(-1px);
  box-shadow:0 6px 20px rgba(232,113,74,.06);
}
.insight::after{
  content:'';position:absolute;top:-1px;right:32px;
  width:48px;height:2px;border-radius:0 0 2px 2px;
  background:linear-gradient(90deg,var(--claude),var(--gold));
}
.insight h3{
  font-family:var(--display);font-weight:700;
  font-size:1rem;color:var(--claude-bright);margin-bottom:6px;
}
.insight p{font-size:.9rem;color:var(--cream2);line-height:1.8}

/* ═════ PROMPT CARD (say) ═════ */
.say{
  border:1.5px solid rgba(232,113,74,.15);
  border-radius:var(--r2);
  padding:20px 24px;margin:14px 0;
  background:linear-gradient(135deg,rgba(232,113,74,.04),transparent);
}
.say-label{
  font-family:var(--mono);font-size:.62rem;font-weight:700;
  color:var(--claude);letter-spacing:.08em;
  margin-bottom:8px;display:flex;align-items:center;gap:6px;
}
.say-tabs{display:flex;gap:4px;margin-bottom:6px}
.say-tab{font-size:.7rem;padding:2px 10px;border-radius:20px;border:1px solid rgba(255,255,255,.12);background:transparent;color:var(--cream3);cursor:pointer;font-family:var(--display);font-weight:600;transition:all .15s}
.say-tab.active{background:var(--claude);color:#fff;border-color:var(--claude)}
.say-tab:hover:not(.active){border-color:rgba(255,255,255,.25);color:var(--cream)}
.say-en{direction:ltr!important;text-align:left}

.say-content{
  position:relative;
  background:rgba(0,0,0,.3);
  border-radius:var(--r);
  padding:14px 18px 14px 48px;
}
.say-content p{
  font-size:.9rem;color:var(--cream);line-height:1.8;
  font-family:var(--sans);
}
.say-copy{
  position:absolute;top:10px;left:10px;
  background:rgba(232,113,74,.08);border:1px solid rgba(232,113,74,.15);
  color:var(--claude);border-radius:7px;
  width:30px;height:30px;display:flex;align-items:center;justify-content:center;
  cursor:pointer;font-size:.8rem;transition:all .15s;
}
.say-copy:hover{background:rgba(232,113,74,.18);border-color:var(--claude);transform:scale(1.08)}
.say-copy.ok{background:rgba(16,185,129,.12);border-color:var(--emerald);color:var(--emerald)}

/* ═════ COPY TOOLTIP ═════ */
.say-copy .copy-tip{
  position:absolute;bottom:calc(100% + 6px);left:50%;transform:translateX(-50%);
  background:var(--emerald);color:#fff;
  font-family:var(--mono);font-size:.6rem;font-weight:700;
  padding:3px 8px;border-radius:5px;white-space:nowrap;
  opacity:0;pointer-events:none;
  animation:tipUp .8s ease forwards;
}
@keyframes tipUp{
  0%{opacity:0;transform:translateX(-50%) translateY(4px)}
  20%{opacity:1;transform:translateX(-50%) translateY(0)}
  80%{opacity:1;transform:translateX(-50%) translateY(0)}
  100%{opacity:0;transform:translateX(-50%) translateY(-8px)}
}

/* ═════ INFO PREVIEW (replaces terminal for UI demos) ═════ */
.preview{
  background:#0D1117;border:1px solid rgba(255,255,255,.05);
  border-radius:var(--r);overflow:hidden;margin:12px 0;
  font-family:var(--mono);font-size:.8rem;
  direction:ltr;text-align:left;
}
.preview-top{
  display:flex;align-items:center;justify-content:space-between;
  padding:7px 12px;background:#161B22;
  border-bottom:1px solid rgba(255,255,255,.04);
}
.preview-dots{display:flex;gap:5px}
.preview-dots i{width:8px;height:8px;border-radius:50%;display:block}
.preview-dots i:nth-child(1){background:#FF5F56}
.preview-dots i:nth-child(2){background:#FFBD2E}
.preview-dots i:nth-child(3){background:#27C93F}
.preview-label{font-size:.6rem;color:var(--stone);letter-spacing:.05em}
.preview-body{padding:12px 14px;white-space:pre-wrap;line-height:1.6;color:var(--cream3)}
.preview-body .g{color:#7EE787}
.preview-body .o{color:var(--claude)}
.preview-body .d{color:var(--stone2)}
.preview-body .y{color:var(--gold)}

/* ═════ SKILL CARD ═════ */
.skill{
  border:1px solid rgba(16,185,129,.12);
  border-radius:var(--r2);
  padding:16px 20px;margin:8px 0;
  background:linear-gradient(135deg,rgba(16,185,129,.03),transparent);
}
.skill h4{font-family:var(--mono);font-size:.82rem;color:var(--emerald);font-weight:600;margin-bottom:3px}
.skill p{font-size:.82rem;color:var(--cream3)}

/* ═════ QUIZ ═════ */
.quiz{
  background:var(--bg2);border:1.5px solid var(--sky);
  border-radius:var(--r2);padding:24px 28px;margin:20px 0;
}
.quiz-head{
  font-family:var(--display);font-weight:700;
  font-size:.9rem;color:var(--sky);margin-bottom:12px;
}
.quiz-q{font-size:.9rem;margin-bottom:14px;color:var(--cream2)}
.quiz-opts{display:flex;flex-direction:column;gap:7px}
.quiz-opt{
  background:var(--bg3);border:1px solid rgba(255,255,255,.04);
  border-radius:var(--r);padding:11px 16px;
  cursor:pointer;font-size:.85rem;color:var(--cream3);transition:all .15s;
}
.quiz-opt:hover{border-color:var(--sky);color:var(--cream)}
.quiz-opt.yes{
  border-color:var(--emerald);background:var(--emerald-glow);color:var(--emerald);
  animation:quizCorrect .5s ease;
}
.quiz-opt.no{border-color:var(--rose);background:rgba(251,113,133,.06);color:var(--rose)}
.quiz-msg{margin-top:10px;font-size:.85rem;font-weight:600;display:none}

/* Quiz correct celebration ripple */
@keyframes quizCorrect{
  0%{box-shadow:0 0 0 0 rgba(16,185,129,.3)}
  50%{box-shadow:0 0 0 10px rgba(16,185,129,.0)}
  100%{box-shadow:none}
}

/* ═════ API FLOW ═════ */
.api-flow{
  background:var(--bg3);border-radius:var(--r2);
  padding:20px 24px;margin:16px 0;
  display:flex;flex-direction:column;gap:0;
}
.api-step{
  display:flex;flex-direction:row-reverse;align-items:center;gap:14px;
  background:var(--bg2);border:1px solid rgba(255,255,255,.06);
  border-radius:var(--r);padding:12px 16px;direction:rtl;
}
.api-step.u{border-color:var(--sky)}
.api-step.u .api-st{color:var(--sky)}
.api-step.c{border-color:var(--claude)}
.api-step.c .api-st{color:var(--claude)}
.api-step.a{border-color:var(--emerald)}
.api-step.a .api-st{color:var(--emerald)}
.api-step.s{border-color:var(--gold)}
.api-step.s .api-st{color:var(--gold)}
.api-step.win{background:rgba(56,189,248,.06)}
.api-si{font-size:1.5rem;flex-shrink:0}
.api-sb{flex:1}
.api-st{font-weight:700;font-size:.95rem;font-family:var(--display)}
.api-sd{font-size:.8rem;color:var(--cream3);margin-top:2px}
.api-arr{
  text-align:center;font-size:1.3rem;color:var(--stone2);
  padding:3px 0;line-height:1;
}

/* ═════ STEPS ═════ */
.step{display:flex;align-items:flex-start;gap:12px;margin-bottom:16px}
.step-n{
  width:28px;height:28px;border-radius:50%;
  background:var(--claude);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-weight:700;font-size:.75rem;flex-shrink:0;
}
.step-body h4{font-size:.9rem;font-weight:600;margin-bottom:2px}
.step-body p{font-size:.85rem;color:var(--cream3)}

/* ═════ BUTTONS ═════ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--display);font-weight:700;font-size:.92rem;
  padding:13px 32px;border:none;border-radius:var(--r);
  cursor:pointer;transition:all .2s;
  color:#fff;position:relative;overflow:hidden;
}
.btn-go{
  background:linear-gradient(135deg,var(--claude),#D35F20);
  box-shadow:0 4px 20px rgba(232,113,74,.2);
  display:block;margin:0 auto;
}
.btn-go:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(232,113,74,.3)}
.btn-go::after{content:'\2190';font-size:1rem}
.btn-start{
  background:linear-gradient(135deg,var(--claude),var(--gold));
  box-shadow:0 6px 28px rgba(232,113,74,.25);
  font-size:1.1rem;padding:18px 52px;
  letter-spacing:.01em;
}
.btn-start:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 8px 36px rgba(232,113,74,.35)}
.hero-cta{display:flex;gap:12px;justify-content:center;align-items:center;flex-wrap:wrap;margin-bottom:20px}
.hero-cta-note{font-size:.78rem;color:var(--stone);text-align:center;margin-bottom:8px}
.hero-cta-notice{font-size:.82rem;color:var(--cream2);text-align:center;margin-bottom:20px;background:rgba(255,160,60,.1);border:1px solid rgba(255,160,60,.3);border-radius:var(--r);padding:10px 16px;display:inline-block}
.btn-free{
  background:transparent;border:1.5px solid rgba(255,255,255,.15);
  color:var(--cream2);padding:14px 26px;font-size:1rem;border-radius:var(--r);
}
.btn-free:hover{border-color:rgba(255,255,255,.35);color:var(--cream);background:rgba(255,255,255,.04)}
.btn-join{
  background:linear-gradient(135deg,var(--claude),#c95a2a);
  color:#fff;padding:14px 28px;font-size:1rem;font-weight:700;border-radius:var(--r);
  box-shadow:0 4px 22px rgba(232,113,74,.38);letter-spacing:.01em;
}
.btn-join:hover{transform:translateY(-2px);box-shadow:0 7px 30px rgba(232,113,74,.5)}

/* ═════ HIGHLIGHT TEXT ═════ */
.hl{color:var(--claude-bright);font-weight:600}
.hlg{color:var(--emerald);font-weight:600}
.hla{color:var(--sky);font-weight:500}
.say-body mark{background:transparent;color:var(--cream1);border-bottom:1px dashed rgba(232,113,74,.5);padding:0;font-style:normal}
.say-content mark{background:transparent;color:var(--cream1);border-bottom:1px dashed rgba(232,113,74,.5);padding:0;font-style:normal}

/* ═════ HERO ═════ */
/* ═════ HERO ═════ */
.hero{
  text-align:center;
  padding:72px 20px 56px;
  position:relative;
  margin:-40px -48px 0;
  padding-left:48px;padding-right:48px;
  overflow:hidden;
}
.hero::before{
  content:'';position:absolute;top:-60px;left:50%;transform:translateX(-50%);
  width:600px;height:600px;border-radius:50%;
  background:radial-gradient(circle,rgba(232,113,74,.08),transparent 65%);
  pointer-events:none;
}
.hero-logo{
  width:80px;height:80px;border-radius:20px;margin-bottom:28px;
  box-shadow:0 0 48px rgba(232,113,74,.2),0 0 120px rgba(232,113,74,.06);
  position:relative;
}
.hero-label{
  font-family:var(--display);font-weight:700;font-size:1.1rem;
  color:var(--claude-bright);letter-spacing:.02em;
  margin-bottom:12px;
  text-shadow:0 0 24px rgba(232,113,74,.2);
}
.hero h1{
  font-family:var(--display);font-weight:900;
  font-size:2.8rem;letter-spacing:-.03em;line-height:1.2;
  margin-bottom:18px;
  color:var(--cream);
}
.hero h1 .gr{
  background:linear-gradient(135deg,var(--claude-bright),var(--gold));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  font-size:3.2rem;
  letter-spacing:-.04em;
}
.hero .sub{
  font-size:1.1rem;color:var(--cream3);
  max-width:480px;margin:0 auto 40px;line-height:1.8;
}
.hero-img{
  width:100%;max-width:580px;border-radius:var(--r2);
  margin:0 auto;display:block;
  box-shadow:0 12px 48px rgba(0,0,0,.5),0 0 0 1px rgba(255,255,255,.06);
}
.video-wrap{
  position:relative;width:100%;max-width:580px;
  margin:0 auto 32px;border-radius:var(--r2);overflow:hidden;
}
.video-wrap .hero-img{margin:0;max-width:100%;border-radius:0;box-shadow:none}
.unmute-btn{
  position:absolute;bottom:14px;left:50%;transform:translateX(-50%);
  display:flex;align-items:center;gap:8px;
  padding:9px 18px 9px 14px;
  background:rgba(12,10,9,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(232,113,74,.45);
  border-radius:100px;cursor:pointer;
  color:var(--cream);font-family:var(--display);font-size:.82rem;font-weight:600;
  transition:all .25s ease;white-space:nowrap;
  box-shadow:0 4px 24px rgba(0,0,0,.4),0 0 0 0 rgba(232,113,74,.3);
}
.unmute-btn:hover{
  background:rgba(232,113,74,.18);
  border-color:var(--claude);
  box-shadow:0 4px 24px rgba(0,0,0,.4),0 0 16px rgba(232,113,74,.25);
}
.unmute-btn.sounding{
  padding:9px 14px;gap:0;
  background:rgba(12,10,9,.55);
  border-color:rgba(255,255,255,.12);
}
.unmute-btn.sounding:hover{
  border-color:rgba(232,113,74,.35);
  background:rgba(232,113,74,.1);
}
.unmute-icon{width:18px;height:18px;flex-shrink:0;color:var(--claude)}
.unmute-label{transition:all .2s ease}
.unmute-btn.sounding .unmute-label{display:none}
.unmute-ripple{
  position:absolute;inset:-1px;border-radius:100px;
  border:2px solid rgba(232,113,74,.5);
  animation:muteRipple 2s ease-out infinite;
  pointer-events:none;
}
.unmute-btn.sounding .unmute-ripple{display:none}
@keyframes muteRipple{
  0%{transform:scale(1);opacity:.7}
  100%{transform:scale(1.35);opacity:0}
}

/* Pipeline */
.pipe{
  display:flex;flex-direction:column;gap:0;
  margin:0 auto 44px;max-width:320px;
}
.pipe-item{
  display:flex;align-items:center;gap:12px;
  padding:12px 20px;background:var(--bg2);
  border:1px solid rgba(255,255,255,.04);
  font-size:.9rem;font-weight:500;
  opacity:0;animation:pipeIn .4s ease both;
}
.pipe-item:nth-child(1){animation-delay:.1s}
.pipe-item:nth-child(3){animation-delay:.2s}
.pipe-item:nth-child(5){animation-delay:.3s}
.pipe-item:nth-child(7){animation-delay:.4s}
.pipe-item:nth-child(9){animation-delay:.5s}
.pipe-item:nth-child(11){animation-delay:.6s}
@keyframes pipeIn{
  from{opacity:0;transform:translateX(12px)}
  to{opacity:1;transform:none}
}
.pipe-item:first-child{border-radius:var(--r) var(--r) 0 0}
.pipe-item:last-child{border-radius:0 0 var(--r) var(--r)}
.pipe-item span{font-size:1.25rem}
.pipe-line{width:2px;height:8px;background:var(--claude);margin:0 auto;opacity:.25}

/* ═════ FLOATING PARTICLES ═════ */
.hero-particles{
  position:absolute;inset:0;pointer-events:none;overflow:hidden;
}
.particle{
  position:absolute;border-radius:50%;
  background:var(--claude);opacity:0;
  animation:particleFloat linear infinite;
}
@keyframes particleFloat{
  0%{opacity:0;transform:translateY(0) scale(0)}
  10%{opacity:.3}
  90%{opacity:.1}
  100%{opacity:0;transform:translateY(-300px) scale(1)}
}

/* ═════ ACHIEVEMENT ═════ */
.ach{
  position:fixed;top:64px;left:50%;z-index:200;
  transform:translateX(-50%) translateY(-140px);
  background:var(--bg2);border:1.5px solid var(--gold);
  border-radius:var(--r2);padding:16px 24px;
  display:flex;align-items:center;gap:12px;
  box-shadow:0 12px 40px rgba(0,0,0,.5),0 0 32px var(--gold-glow);
  transition:transform .5s cubic-bezier(.34,1.56,.64,1);
  min-width:280px;
}
.ach.show{transform:translateX(-50%) translateY(0)}
.ach-i{font-size:2rem}
.ach-t{font-family:var(--display);font-weight:700;font-size:.85rem;color:var(--gold)}
.ach-d{font-size:.75rem;color:var(--cream3)}

/* ═════ XP POPUP ═════ */
.xpp{
  position:fixed;z-index:250;pointer-events:none;
  font-family:var(--mono);font-weight:700;font-size:1rem;
  color:var(--gold);animation:xpUp 1.4s ease-out forwards;
}
@keyframes xpUp{0%{opacity:1;transform:translateY(0)}100%{opacity:0;transform:translateY(-50px)}}

/* ═════ CONFETTI ═════ */
#confetti{position:fixed;inset:0;pointer-events:none;z-index:300}

/* ═════ ABOUT ═════ */
.about-card{background:linear-gradient(135deg,var(--bg2),rgba(232,113,74,.03))}
.about-card h3{margin-bottom:6px}
.about-links{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.about-link{
  font-family:var(--mono);font-size:.75rem;
  color:var(--claude);background:rgba(232,113,74,.06);
  border:1px solid rgba(232,113,74,.12);
  padding:4px 12px;border-radius:100px;
  text-decoration:none;transition:all .15s;
}
.about-link:hover{background:rgba(232,113,74,.12);border-color:var(--claude)}

/* ═════ AUTH UI ═════ */
.topbar-right{display:flex;align-items:center;gap:8px}
.topbar-left{display:flex;align-items:center;gap:8px}
#authEmail{
  font-family:var(--mono);font-size:.72rem;color:var(--cream3);
  max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.btn-auth-login,.btn-auth-logout{
  font-family:var(--mono);font-size:.75rem;font-weight:600;
  padding:5px 14px;border-radius:100px;border:none;cursor:pointer;
  transition:all .15s;white-space:nowrap;display:inline-flex;align-items:center;
}
.btn-auth-login{
  background:rgba(232,113,74,.12);color:var(--claude);
  border:1px solid rgba(232,113,74,.25);
}
.btn-auth-login:hover{background:rgba(232,113,74,.22);border-color:var(--claude)}
.btn-auth-logout{
  background:rgba(255,255,255,.06);color:var(--cream3);
  border:1px solid rgba(255,255,255,.1);
}
.btn-auth-logout:hover{background:rgba(255,255,255,.1);color:var(--cream1)}

/* ═════ MODALS ═════ */
.modal-overlay{
  position:fixed;inset:0;z-index:900;
  background:rgba(15,13,11,.75);backdrop-filter:blur(6px);
  display:flex;align-items:flex-start;justify-content:center;padding-top:5vh;
  opacity:0;pointer-events:none;transition:opacity .2s;
}
.modal-overlay.open{opacity:1;pointer-events:all}

.modal-box{
  background:var(--bg2);border:1px solid rgba(255,255,255,.08);
  border-radius:18px;padding:36px 32px;max-width:420px;width:calc(100% - 40px);
  position:relative;box-shadow:0 24px 64px rgba(0,0,0,.5);
  transform:translateY(12px);transition:transform .2s;
  max-height:90vh;overflow-y:auto;
}
.modal-overlay.open .modal-box{transform:translateY(0)}

.modal-close{
  position:absolute;top:14px;left:14px;
  background:none;border:none;color:var(--stone);font-size:1rem;
  cursor:pointer;padding:4px 8px;border-radius:6px;
}
.modal-close:hover{color:var(--cream1);background:rgba(255,255,255,.06)}

.modal-title{font-size:1.25rem;font-weight:700;color:var(--cream1);margin-bottom:8px}
.modal-desc{font-size:.88rem;color:var(--cream3);margin-bottom:18px;line-height:1.6}

.modal-input{
  width:100%;box-sizing:border-box;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  border-radius:10px;padding:11px 14px;color:var(--cream1);
  font-family:var(--mono);font-size:.9rem;margin-bottom:14px;
  outline:none;transition:border-color .15s;
}
.modal-input:focus{border-color:rgba(232,113,74,.4)}
.modal-input::placeholder{color:var(--stone)}

.modal-msg{font-size:.82rem;color:var(--cream3);margin-top:10px;min-height:1.2em;text-align:center}

/* ═════ PAYWALL ═════ */
.paywall-price{
  font-size:2rem;font-weight:800;color:var(--claude);
  text-align:center;margin:12px 0;
}
.link-btn{
  background:none;border:none;color:var(--claude);
  cursor:pointer;font-size:inherit;text-decoration:underline;padding:0;
}

.paywall-bit{margin-top:18px}
.paywall-divider{
  display:flex;align-items:center;gap:10px;
  color:var(--stone);font-size:.78rem;margin:14px 0 12px;
}
.paywall-divider::before,.paywall-divider::after{
  content:"";flex:1;height:1px;background:rgba(255,255,255,.12);
}
.paywall-bit-title{
  font-family:var(--font-display,inherit);
  font-weight:700;font-size:1rem;color:var(--cream);
  text-align:center;margin-bottom:6px;
}
.paywall-bit-desc{
  font-size:.85rem;color:var(--cream3);line-height:1.55;
  text-align:center;margin-bottom:12px;
}
.paywall-bit-number{
  font-family:'JetBrains Mono',monospace;
  color:var(--claude);font-weight:600;
  background:rgba(232,113,74,.08);
  padding:1px 6px;border-radius:5px;
}

/* ═════ PULSE ═════ */
@keyframes pulse{0%,100%{box-shadow:0 6px 28px rgba(232,113,74,.25)}50%{box-shadow:0 6px 28px rgba(232,113,74,.45),0 0 0 6px rgba(232,113,74,.06)}}
.pulse{animation:pulse 2.5s ease infinite}

/* ═════ RESPONSIVE ═════ */
.menu-btn{display:none;background:none;border:none;color:var(--cream);font-size:1.2rem;cursor:pointer;padding:4px 6px;border-radius:6px}
.menu-btn:hover{background:rgba(255,255,255,.06)}

@media(max-width:860px){
  /* ── Sidebar: drawer from the right ── */
  .menu-btn{display:block}
  .sidebar{
    transform:translateX(110%);
    transition:transform .28s cubic-bezier(.4,0,.2,1);
    width:72vw;max-width:280px;
  }
  .sidebar.open{transform:translateX(0)}
  .main-wrapper{margin-right:0}

  /* Backdrop */
  .sidebar-backdrop{
    display:none;position:fixed;inset:0;z-index:49;
    background:rgba(0,0,0,.6);
  }
  .sidebar-backdrop.open{display:block}

  /* ── Topbar: right=☰+auth, left=xp ── */
  .topbar{padding:0 14px}
  #authEmail{display:none!important}
  .xp-bar{display:none}
  .xp-pill{padding:3px 10px 3px 8px;gap:5px}

  /* ── Main content ── */
  .main{padding:24px 16px 100px}

  /* Chapter header */
  .ch-h{font-size:1.65rem}
  .ch-sub{font-size:.9rem;margin-bottom:22px}

  /* Hero */
  .hero{margin:-24px -16px 0;padding:44px 16px 36px;overflow-x:hidden;max-width:100vw}
  .main-wrapper{overflow-x:hidden}
  .main{overflow-x:hidden}
  .hero h1{font-size:1.85rem}
  .hero h1 .gr{font-size:2rem}
  .hero .sub{font-size:.92rem;margin-bottom:24px;max-width:100%}
  .hero-img{max-width:100%!important;width:100%!important}
  .hero-logo{width:64px;height:64px}
  .pipe{max-width:100%}
  .hero p{max-width:100%!important}

  /* Cards */
  .card{padding:18px 16px}
  .insight{padding:16px 18px}
  .quiz{padding:16px 18px}
  .say{padding:14px 14px}
  .say-content{padding:12px 14px 12px 42px}

  /* 2-col grid: stack */
  .grid-2col{grid-template-columns:1fr!important}

  /* Buttons: full width */
  .btn-start{display:block;width:100%;padding:15px 20px;font-size:1rem;box-sizing:border-box;text-align:center}
  .btn-go{width:100%;justify-content:center;box-sizing:border-box}

  /* Steps */
  .step{gap:10px;margin-bottom:12px}

  /* Modal */
  .modal-box{padding:26px 18px}

  /* Achievement */
  .ach{min-width:calc(100vw - 40px);max-width:calc(100vw - 40px)}

  /* Prevent horizontal overflow */
  .preview{overflow-x:auto}
  .preview-body{overflow-x:auto;-webkit-overflow-scrolling:touch;white-space:pre}
}

@media(max-width:420px){
  .topbar{padding:0 10px}
  .btn-auth-login,.btn-auth-logout{font-size:.68rem;padding:4px 9px}
  #xpNum{font-size:.6rem}
  .xp-pill{padding:2px 8px 2px 6px}

  .ch-h{font-size:1.4rem}
  .ch-sub{font-size:.83rem}

  .hero h1{font-size:1.5rem}
  .hero h1 .gr{font-size:1.65rem}
  .hero-logo{width:52px;height:52px;border-radius:13px}
  .hero-label{font-size:.88rem}
  .hero{padding:36px 14px 28px}

  .card{padding:14px 12px;border-radius:var(--r)}
  .insight{padding:14px 14px;border-radius:var(--r)}
  .quiz{padding:14px 14px;border-radius:var(--r)}
  .say-content{padding:10px 10px 10px 38px;font-size:.83rem}

  .api-step{padding:9px 10px;gap:8px}
  .api-st{font-size:.85rem}
  .api-sd{font-size:.72rem}
  .api-si{font-size:1.15rem}

  .skill{padding:12px 14px}
  .modal-box{padding:22px 14px;border-radius:var(--r)}
  .modal-title{font-size:1.05rem}
}

/* ── SUPPORT CTA (buy me a coffee) ───────────────── */
.support-cta{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  margin:52px 0 8px;padding:22px 26px;
  background:linear-gradient(135deg,var(--bg2),rgba(245,158,11,.05));
  border:1px solid rgba(245,158,11,.18);
  border-radius:var(--r2);
  position:relative;overflow:hidden;
}
.support-cta__glow{
  position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(140px 140px at 10% 50%,var(--gold-glow),transparent 70%);
}
.support-cta__icon{
  font-size:2rem;line-height:1;flex-shrink:0;position:relative;z-index:1;
  filter:drop-shadow(0 2px 6px rgba(245,158,11,.35));
}
.support-cta__text{flex:1;min-width:170px;position:relative;z-index:1}
.support-cta__title{
  font-family:var(--display);font-weight:700;font-size:1.05rem;
  color:var(--cream);margin:0 0 2px;
}
.support-cta__sub{
  font-family:var(--sans);font-size:.86rem;color:var(--cream3);
  margin:0;line-height:1.5;
}
.support-cta__btn{
  position:relative;z-index:1;flex-shrink:0;
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--display);font-weight:700;font-size:.92rem;
  color:#1C1917;text-decoration:none;white-space:nowrap;
  padding:11px 22px;border-radius:999px;
  background:linear-gradient(135deg,var(--gold),var(--claude));
  box-shadow:0 4px 16px rgba(245,158,11,.28);
  transition:transform .18s cubic-bezier(.4,0,.2,1),box-shadow .18s;
}
.support-cta__btn:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(245,158,11,.42);
}
.support-cta__btn-emoji{font-size:1.05rem}
/* hero variant sits under the welcome CTA button */
.support-cta--hero{max-width:540px;margin:0 auto 8px}
/* keep only the persistent footer block off the landing page */
.main:has(#v0.on) .support-cta--footer{display:none}
@media(max-width:560px){
  .support-cta{flex-direction:column;text-align:center;align-items:center;gap:14px}
  .support-cta__text{min-width:0}
}