body{
  background:var(--deep);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

  /* NAV */
  nav{padding:1rem 2.5rem;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,0.12);}
  .nav-logo{font-family:'Lora', serif;font-size:1.3rem;font-weight:900;color:var(--gold);text-decoration:none;}
  .nav-right{display:flex;gap:1.5rem;align-items:center;}
  .nav-link{text-decoration:none;color:rgba(255,255,255,0.96);font-size:0.85rem;transition:color 0.2s;}
  .nav-link:hover{color:var(--gold);}

  /* HEADER */
  .fc-header{padding:2rem 2.5rem 1rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;}
  .fc-title{font-family:'Lora', serif;font-size:1.8rem;font-weight:900;}
  .fc-title em{color:var(--gold);font-style:italic;}

  /* DECK SELECTOR */
  .deck-bar{padding:0 2.5rem 1.5rem;display:flex;gap:0.5rem;flex-wrap:wrap;}
  .deck-btn{padding:0.45rem 1rem;border-radius:100px;border:1.5px solid rgba(255,255,255,0.18);background:transparent;color:rgba(255,255,255,0.90);font-size:0.8rem;font-weight:500;cursor:pointer;transition:all 0.2s;font-family:'Source Sans 3', sans-serif;white-space:nowrap;}
  .deck-btn:hover{border-color:rgba(212,168,71,0.4);color:var(--gold);}
  .deck-btn.active{background:rgba(212,168,71,0.12);border-color:rgba(212,168,71,0.5);color:var(--gold);}

  /* STATS BAR */
  .stats-bar{padding:0 2.5rem 2rem;display:flex;gap:2rem;flex-wrap:wrap;}
  .stat-item{text-align:center;}
  .stat-val{font-family:'Lora', serif;font-size:1.6rem;font-weight:700;}
  .stat-val.green{color:#4ade80;}
  .stat-val.red{color:#f87171;}
  .stat-val.gold{color:var(--gold);}
  .stat-lbl{font-size:0.7rem;color:rgba(255,255,255,0.84);text-transform:uppercase;letter-spacing:0.08em;margin-top:0.1rem;}

  /* PROGRESS */
  .progress-row{padding:0 2.5rem 2rem;}
  .progress-track{background:rgba(255,255,255,0.14);border-radius:100px;height:5px;width:100%;max-width:600px;}
  .progress-fill{background:linear-gradient(90deg,var(--terracotta),var(--gold));height:5px;border-radius:100px;transition:width 0.5s ease;}
  .progress-text{font-size:0.75rem;color:rgba(255,255,255,0.84);margin-top:0.5rem;}

  /* MAIN AREA */
  .main-area{flex:1;display:flex;align-items:center;justify-content:center;padding:2rem;}

  /* CARD */
  .card-scene{perspective:1000px;width:100%;max-width:560px;}
  .card-inner{position:relative;width:100%;height:320px;transform-style:preserve-3d;transition:transform 0.55s cubic-bezier(0.4,0,0.2,1);cursor:pointer;}
  .card-inner.flipped{transform:rotateY(180deg);}
  .card-face{position:absolute;inset:0;border-radius:20px;backface-visibility:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2.5rem;text-align:center;}
  .card-front{background:linear-gradient(145deg,#2D1B00,#1A1208);border:1px solid rgba(212,168,71,0.2);}
  .card-back{background:linear-gradient(145deg,var(--terracotta),#8B3B1A);transform:rotateY(180deg);}
  .card-label{font-size:0.68rem;text-transform:uppercase;letter-spacing:0.12em;margin-bottom:1.5rem;opacity:0.5;}
  .card-word{font-family:'Lora', serif;font-size:clamp(1.8rem,5vw,3rem);font-style:italic;margin-bottom:0.8rem;line-height:1.2;}
  .card-chapter{font-family:'DM Mono', monospace;font-size:0.72rem;color:var(--gold);background:rgba(212,168,71,0.12);padding:0.2rem 0.6rem;border-radius:4px;margin-bottom:1rem;display:inline-block;}
  .card-hint{font-size:0.82rem;opacity:0.45;margin-top:1rem;}
  .card-ipa{font-family:'DM Mono', monospace;font-size:1rem;color:rgba(255,255,255,0.92);margin-bottom:0.5rem;}
  .card-example{font-size:0.88rem;opacity:0.7;font-style:italic;margin-top:0.8rem;max-width:380px;}

  /* SRS BUTTONS */
  .srs-btns{display:flex;gap:0.8rem;justify-content:center;margin-top:2rem;flex-wrap:wrap;}
  .srs-btn{padding:0.75rem 1.5rem;border-radius:10px;border:none;font-weight:700;font-size:0.9rem;cursor:pointer;font-family:'Source Sans 3', sans-serif;transition:all 0.2s;min-width:100px;}
  .srs-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,0.3);}
  .btn-again{background:#c0392b;color:white;}
  .btn-hard{background:#e67e22;color:white;}
  .btn-good{background:var(--sage);color:white;}
  .btn-easy{background:#27ae60;color:white;}
  .srs-label{font-size:0.65rem;display:block;opacity:0.7;font-weight:400;margin-top:2px;}

  /* COMPLETE STATE */
  .complete-screen{text-align:center;padding:3rem 2rem;}
  .complete-icon{font-size:4rem;margin-bottom:1.5rem;}
  .complete-title{font-family:'Lora', serif;font-size:2.5rem;font-weight:900;margin-bottom:0.8rem;}
  .complete-sub{color:rgba(255,255,255,0.91);margin-bottom:2rem;font-size:1rem;}
  .complete-stats{display:flex;gap:2rem;justify-content:center;margin-bottom:2.5rem;flex-wrap:wrap;}
  .cs-num{font-family:'Lora', serif;font-size:2rem;font-weight:700;}
  .cs-lbl{font-size:0.75rem;color:rgba(255,255,255,0.86);text-transform:uppercase;letter-spacing:0.08em;}
  .complete-btn{background:var(--terracotta);color:white;border:none;padding:0.9rem 2rem;border-radius:10px;font-weight:700;font-size:1rem;cursor:pointer;font-family:'Source Sans 3', sans-serif;transition:all 0.2s;margin:0 0.4rem;}
  .complete-btn:hover{background:var(--gold);color:var(--deep);}
  .complete-btn.secondary{background:rgba(255,255,255,0.14);color:white;}
  .complete-btn.secondary:hover{background:rgba(255,255,255,0.15);}

  /* FLIP HINT */
  .flip-hint{text-align:center;font-size:0.8rem;color:rgba(255,255,255,0.78);margin-top:1rem;}

  /* KEYBOARD HINTS */
  .keyboard-hints{display:flex;gap:1.5rem;justify-content:center;padding:1rem 2.5rem;flex-wrap:wrap;}
  .kb-hint{font-size:0.72rem;color:rgba(255,255,255,0.78);display:flex;align-items:center;gap:0.4rem;}
  .kb-key{background:rgba(255,255,255,0.14);border:1px solid rgba(255,255,255,0.12);border-radius:4px;padding:0.1rem 0.4rem;font-family:'DM Mono', monospace;font-size:0.68rem;color:rgba(255,255,255,0.86);}

  @media(max-width:600px){
    nav,fc-header,.deck-bar,.stats-bar,.progress-row{padding-left:1.2rem;padding-right:1.2rem;}
    .card-inner{height:260px;}
    .srs-btn{min-width:72px;padding:0.65rem 0.9rem;font-size:0.82rem;}
  }


/* ELITE PRIORITY SWEEP */
.fc-subtitle{font-size:0.96rem;color:rgba(255,255,255,0.94);margin-top:0.35rem;}
.learning-banner{max-width:900px;margin:0 2.5rem 1.25rem;padding:0.95rem 1.1rem;background:linear-gradient(135deg,#fff5e2,#f8ecd0);border-left:4px solid var(--terracotta);border-radius:10px;color:#2b180a;font-weight:700;box-shadow:0 8px 24px rgba(0,0,0,0.12);}
.download-btn{background:linear-gradient(135deg,var(--terracotta),#d2602d) !important;border:none !important;color:#fff !important;font-weight:800;box-shadow:0 8px 22px rgba(184,77,35,0.32);padding:0.9rem 1.2rem;min-height:48px;display:inline-flex;align-items:center;justify-content:center;}
.download-btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(184,77,35,0.42);}
.stats-bar{align-items:flex-end;}
.stat-val{transition:transform .2s ease, opacity .2s ease;}
.stat-val.update{transform:scale(1.12);}
.progress-track{height:9px;max-width:680px;box-shadow:inset 0 1px 2px rgba(0,0,0,0.18);}
.progress-fill{height:9px;background:linear-gradient(90deg,var(--gold),var(--terracotta));box-shadow:0 0 18px rgba(212,168,71,0.35);}
.main-area{padding:2.2rem 1.5rem 2.8rem;}
.card-shell{width:100%;max-width:620px;margin:0 auto;padding:0.8rem;border-radius:28px;background:linear-gradient(145deg,rgba(255,255,255,0.08),rgba(255,255,255,0.02));box-shadow:0 24px 60px rgba(0,0,0,0.32);transition:background-color .18s ease,border-color .18s ease, transform .18s ease, box-shadow .18s ease;border:1px solid rgba(255,255,255,0.08);}
.card-scene{max-width:none;}
.card-inner{height:380px;}
.card-face{padding:2.8rem 2.5rem;}
.card-front{background:linear-gradient(155deg,#fffdfa 0%, #f7ead7 54%, #f0dfc5 100%);border:1px solid rgba(212,168,71,0.32);color:#1a1208;box-shadow:0 16px 36px rgba(0,0,0,0.14);}
.card-back{background:linear-gradient(155deg,#b84d23 0%, #9a3f1c 55%, #7d2f14 100%);box-shadow:0 18px 38px rgba(0,0,0,0.18);}
.card-topline{font-size:0.74rem;text-transform:uppercase;letter-spacing:0.16em;font-weight:800;opacity:0.76;margin-bottom:0.6rem;}
.card-label{font-size:0.74rem;letter-spacing:0.14em;margin-bottom:1.2rem;opacity:0.58;font-weight:700;}
.card-word{font-family:'Lora', serif;font-size:clamp(2.5rem,6vw,3.5rem);font-style:normal;font-weight:700;line-height:1.14;margin-bottom:0.9rem;}
.card-meaning{font-size:clamp(2rem,5vw,2.8rem);}
.card-chapter{font-size:0.78rem;padding:0.35rem 0.75rem;margin-bottom:1.3rem;}
.card-front .card-chapter{background:rgba(184,77,35,0.1);color:#8a3518;}
.card-hint{font-size:0.95rem;opacity:0.65;font-weight:600;}
.card-ipa{font-size:1.02rem;color:rgba(255,255,255,0.92);padding:0.45rem 0.7rem;border-radius:999px;background:rgba(255,255,255,0.1);margin-bottom:0.8rem;}
.card-example{font-size:1rem;opacity:0.9;font-style:italic;max-width:420px;line-height:1.55;}
.flash-feedback-good{background:linear-gradient(145deg,rgba(39,174,96,0.28),rgba(39,174,96,0.10));border-color:rgba(39,174,96,0.75);transform:translateY(-2px);}
.flash-feedback-again{background:linear-gradient(145deg,rgba(192,57,43,0.28),rgba(192,57,43,0.10));border-color:rgba(192,57,43,0.8);transform:translateY(-2px);}
.srs-btns{margin-top:1.35rem;}
.srs-btn{min-width:112px;min-height:50px;box-shadow:0 8px 18px rgba(0,0,0,0.18);}
.flip-hint{font-size:0.88rem;color:rgba(255,255,255,0.84);font-weight:600;}
.keyboard-hints{gap:1rem 1.2rem;}
.kb-key{background:#1e1408;border:1px solid rgba(212,168,71,0.35);color:#fff;padding:0.2rem 0.5rem;font-weight:700;}
@media(max-width:600px){
  .fc-header,.deck-bar,.stats-bar,.progress-row{padding-left:1.2rem;padding-right:1.2rem;}
  .learning-banner{margin:0 1.2rem 1rem;font-size:0.95rem;}
  .card-shell{padding:0.55rem;border-radius:22px;}
  .card-inner{height:330px;}
  .card-face{padding:2rem 1.25rem;}
  .card-word{font-size:clamp(2rem,9vw,2.7rem);}
  .srs-btns{gap:0.6rem;}
  .srs-btn{min-width:calc(50% - 0.6rem);padding:0.7rem 0.75rem;font-size:0.84rem;}
}


/* V2 LEARNING SYSTEM */
.system-bar{
  margin:0 2.5rem 1rem;
  padding:0.85rem 1.1rem;
  border-radius:12px;
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.08);
  color:rgba(255,255,255,0.92);
  font-weight:700;
  text-align:center;
  letter-spacing:0.02em;
}
.study-dashboard{
  margin:0 2.5rem 1.5rem;
  padding:1.15rem;
  border-radius:20px;
  background:linear-gradient(145deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
  border:1px solid rgba(255,255,255,0.08);
  box-shadow:0 20px 45px rgba(0,0,0,0.22);
}
.dashboard-grid{
  display:grid;
  grid-template-columns:repeat(4, minmax(0,1fr));
  gap:0.9rem;
}
.dash-card{
  padding:1rem 1rem 0.95rem;
  border-radius:16px;
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.08);
}
.dash-label{
  font-size:0.72rem;
  text-transform:uppercase;
  letter-spacing:0.12em;
  color:rgba(255,255,255,0.72);
  margin-bottom:0.45rem;
  font-weight:700;
}
.dash-value{
  font-family:'Lora', serif;
  font-size:1.5rem;
  font-weight:700;
  color:#fff7e6;
  line-height:1.15;
}
.dash-sub{
  margin-top:0.35rem;
  color:rgba(255,255,255,0.72);
  font-size:0.88rem;
  line-height:1.4;
}
.dashboard-controls{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:1rem;
  margin-top:1rem;
  flex-wrap:wrap;
}
.goal-picker{
  display:flex;
  align-items:center;
  gap:0.55rem;
  flex-wrap:wrap;
}
.goal-picker-label{
  color:rgba(255,255,255,0.82);
  font-weight:700;
  margin-right:0.15rem;
}
.goal-btn{
  min-height:42px;
  min-width:48px;
  padding:0.5rem 0.8rem;
  border-radius:999px;
  border:1px solid rgba(255,255,255,0.12);
  background:rgba(255,255,255,0.05);
  color:#fff;
  cursor:pointer;
  font-weight:700;
  transition:all .18s ease;
}
.goal-btn:hover,
.goal-btn.active{
  background:linear-gradient(135deg,var(--gold),var(--terracotta));
  border-color:transparent;
  color:#1a1208;
  transform:translateY(-1px);
}
.session-strip{
  display:flex;
  align-items:center;
  gap:0.7rem;
  flex-wrap:wrap;
}
.session-pill{
  padding:0.55rem 0.9rem;
  border-radius:999px;
  background:rgba(255,255,255,0.06);
  color:rgba(255,255,255,0.85);
  font-size:0.9rem;
  border:1px solid rgba(255,255,255,0.08);
}
.session-pill strong{color:#fff}
.reset-link{
  min-height:42px;
  padding:0.55rem 0.95rem;
  border:none;
  background:transparent;
  color:#f7c98d;
  text-decoration:underline;
  text-underline-offset:0.18em;
  cursor:pointer;
  font-weight:700;
}
.goal-meter{
  margin-top:1rem;
  height:10px;
  border-radius:999px;
  background:rgba(255,255,255,0.08);
  overflow:hidden;
}
.goal-meter-fill{
  height:100%;
  width:0%;
  border-radius:999px;
  background:linear-gradient(90deg,#4ade80,var(--gold),var(--terracotta));
  box-shadow:0 0 20px rgba(212,168,71,0.35);
  transition:width .35s ease;
}
.card-meta-row{
  display:flex;
  gap:0.6rem;
  flex-wrap:wrap;
  justify-content:center;
  margin-bottom:0.8rem;
}
.meta-pill{
  padding:0.38rem 0.75rem;
  border-radius:999px;
  background:rgba(255,255,255,0.08);
  color:rgba(255,255,255,0.9);
  font-size:0.8rem;
  border:1px solid rgba(255,255,255,0.08);
  font-weight:700;
}
.complete-badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:0.45rem 0.85rem;
  margin-bottom:1rem;
  border-radius:999px;
  background:rgba(255,255,255,0.08);
  color:#f7c98d;
  border:1px solid rgba(255,255,255,0.08);
  font-size:0.85rem;
  font-weight:800;
  text-transform:uppercase;
  letter-spacing:0.08em;
}
.reward-strip{
  margin:0 auto 1.75rem;
  max-width:38rem;
  padding:0.9rem 1rem;
  border-radius:14px;
  background:linear-gradient(135deg,rgba(74,222,128,0.14),rgba(212,168,71,0.16));
  border:1px solid rgba(255,255,255,0.08);
  color:rgba(255,255,255,0.96);
  font-weight:700;
}

@media(max-width:900px){
  .dashboard-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media(max-width:600px){
  .system-bar,
  .study-dashboard{margin-left:1.2rem;margin-right:1.2rem;}
  .dashboard-grid{grid-template-columns:1fr;}
  .dashboard-controls{align-items:flex-start;}
  .goal-picker-label{width:100%;}
  .session-strip{width:100%;}
  .session-pill{width:100%;justify-content:space-between;}
  .card-meta-row{margin-bottom:0.65rem;}
  .meta-pill{font-size:0.75rem;}
}

/* FREEMIUM UNLOCK OVERLAY */
.deck-btn.locked {
  opacity: 0.7;
}

.unlock-overlay-fc {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 500px;
  padding: 2rem;
}

.unlock-box-fc {
  max-width: 520px;
  background: white;
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 8px 32px rgba(22,14,3,0.12);
  border: 1px solid rgba(196,87,42,0.15);
  text-align: center;
}

.unlock-icon-fc {
  font-size: 3.5rem;
  margin-bottom: 1.2rem;
  opacity: 0.9;
}

.unlock-title-fc {
  font-family: 'Lora', serif;
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--deep);
  margin-bottom: 0.9rem;
  line-height: 1.2;
}

.unlock-text-fc {
  font-size: 1rem;
  color: #2a1f0f;
  line-height: 1.65;
  margin-bottom: 1.8rem;
}

.unlock-features-fc {
  list-style: none;
  padding: 0;
  margin: 1.8rem 0;
  text-align: left;
  background: rgba(196,87,42,0.04);
  border-radius: 8px;
  padding: 1.2rem 1.5rem;
}

.unlock-features-fc li {
  padding: 0.5rem 0;
  font-size: 0.92rem;
  color: var(--deep);
  line-height: 1.5;
}

.unlock-btn-fc {
  display: inline-block;
  background: var(--terracotta);
  color: white;
  padding: 0.95rem 1.8rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: all 0.2s;
  margin-top: 0.8rem;
  border: none;
  cursor: pointer;
}

.unlock-btn-fc:hover {
  background: var(--deep);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(196,87,42,0.3);
}

.unlock-note-fc {
  font-size: 0.82rem;
  color: #8b7d6b;
  margin-top: 0.9rem;
  margin-bottom: 1.5rem;
}

.unlock-back-fc {
  background: none;
  border: none;
  color: var(--terracotta);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.6rem 1rem;
  transition: all 0.2s;
  text-decoration: none;
}

.unlock-back-fc:hover {
  color: var(--deep);
  text-decoration: underline;
}

.usd-notice-checkout {
  font-size: 0.85rem;
  color: #8a7762;
  margin-top: 10px;
  text-align: center;
}

.hero-proof{
  margin-top: 1rem;
  font-size: .95rem;
  color: rgba(246,239,226,0.9);
  font-weight: 700;
}