:root{
  --bg:#0A1120;
  --surface:#121B30;
  --surface-2:#182544;
  --accent:#FFB648;
  --accent-ink:#2B1B04;
  --accent-2:#35D0BA;
  --text:#F4F6FB;
  --text-dim:#95A2BE;
  --text-faint:#5C6785;
  --line:rgba(255,255,255,.08);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0;}
html{font-size:16px;-webkit-text-size-adjust:100%;}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  min-height:100vh;
  position:relative;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(560px 380px at 12% -8%, rgba(255,182,72,.16), transparent 60%),
    radial-gradient(480px 360px at 112% 8%, rgba(53,208,186,.11), transparent 60%),
    radial-gradient(rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:auto,auto,24px 24px;
}
button{font-family:inherit;}
a{color:inherit;}
svg{display:block;}

.app{
  position:relative;
  z-index:1;
  max-width:480px;
  margin:0 auto;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

/* Header */
.header{
  position:sticky;
  top:0;
  z-index:10;
  padding:18px 20px 16px;
  background:rgba(9,15,28,.72);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.brand-row{display:flex;align-items:center;gap:10px;}
.logo{width:34px;height:34px;flex-shrink:0;}
.wordmark{font-size:1.28rem;font-weight:800;letter-spacing:-.02em;}
.tagline{font-size:.8rem;color:var(--text-dim);margin-top:1px;font-weight:500;}
.status-pill{
  margin-top:13px;
  display:inline-flex;
  align-items:center;
  gap:9px;
  background:rgba(53,208,186,.08);
  border:1px solid rgba(53,208,186,.28);
  color:#BFEEE7;
  padding:8px 13px;
  border-radius:999px;
  font-size:.76rem;
  font-weight:600;
  line-height:1.3;
}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:var(--accent-2);position:relative;flex-shrink:0;}
.pulse-dot::after{
  content:"";
  position:absolute;
  inset:-4px;
  border-radius:50%;
  border:1.5px solid var(--accent-2);
  animation:pulse 2s ease-out infinite;
}
@keyframes pulse{0%{transform:scale(.6);opacity:.9;}100%{transform:scale(1.9);opacity:0;}}
@media (prefers-reduced-motion:reduce){
  .pulse-dot::after{animation:none;opacity:0;}
  .slide.active{animation:none !important;}
}

/* Slide dots */
.dots{display:flex;justify-content:center;gap:6px;padding:16px 0 4px;}
.dot{width:6px;height:6px;border-radius:50%;background:var(--text-faint);opacity:.5;transition:all .25s ease;}
.dot.active{width:18px;border-radius:4px;background:var(--accent);opacity:1;}

/* Content / slides */
.content{flex:1;padding:6px 20px 108px;position:relative;}
.slide{display:none;}
.slide.active{display:block;animation:slideIn .35s ease;}
@keyframes slideIn{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}

.eyebrow{font-size:.72rem;font-weight:800;letter-spacing:.14em;color:var(--accent);text-transform:uppercase;}
.section-title{font-size:1.42rem;font-weight:800;letter-spacing:-.01em;margin-top:6px;}
.section-sub{font-size:.86rem;color:var(--text-dim);margin-top:8px;line-height:1.55;}

/* Cards */
.cards{display:flex;flex-direction:column;gap:16px;margin-top:22px;}
.card{position:relative;border-radius:20px;padding:20px;background:linear-gradient(160deg,var(--surface-2),var(--surface));border:1px solid var(--line);}
.card.free{border-color:rgba(53,208,186,.28);}
.card.expert{border-color:rgba(255,182,72,.3);}
.card.pro-wrap{padding:2px;border-radius:20px;background:linear-gradient(135deg,var(--accent),rgba(255,182,72,.15));border:none;}
.card.pro-wrap .card-inner{border-radius:18px;padding:19px;background:linear-gradient(160deg,#182544,#111a30);}

.badge{display:inline-flex;align-items:center;gap:6px;font-size:.66rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;padding:5px 10px;border-radius:999px;}
.badge.free{color:#BFEEE7;background:rgba(53,208,186,.12);border:1px solid rgba(53,208,186,.32);}
.badge.pro{color:var(--accent-ink);background:var(--accent);}
.badge.expert{color:#FFD9A0;background:rgba(255,182,72,.12);border:1px solid rgba(255,182,72,.32);}

.hero-duration{display:flex;align-items:baseline;gap:8px;margin-top:14px;}
.hero-num{font-size:2.5rem;font-weight:800;letter-spacing:-.02em;line-height:1;font-variant-numeric:tabular-nums;}
.hero-unit{font-size:.82rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-dim);}

.price-row{margin-top:8px;font-size:1rem;font-weight:700;font-variant-numeric:tabular-nums;}
.price-note{font-size:.78rem;color:var(--text-dim);margin-top:2px;line-height:1.4;}

.divider{height:1px;background:var(--line);margin:16px 0;}

.specs{display:flex;flex-direction:column;gap:10px;}
.spec-row{display:flex;align-items:flex-start;gap:10px;font-size:.85rem;color:var(--text-dim);line-height:1.4;}
.spec-row svg{width:18px;height:18px;flex-shrink:0;margin-top:1px;color:var(--accent-2);}
.spec-row b{color:var(--text);font-weight:600;}

.btn{margin-top:18px;width:100%;padding:14px;border:none;border-radius:14px;font-weight:700;font-size:.92rem;cursor:pointer;transition:transform .15s ease,filter .2s ease;}
.btn:active{transform:scale(.98);}
.btn:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px;}
.btn-primary{background:var(--accent);color:var(--accent-ink);}
.btn-teal{background:rgba(53,208,186,.14);color:#BFEEE7;border:1.5px solid rgba(53,208,186,.42);}

.disclaimer{margin-top:20px;font-size:.72rem;color:var(--text-faint);text-align:center;line-height:1.55;}

/* About */
.illustration{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  background:linear-gradient(160deg,#182544,#0F1830);
  border:1px dashed rgba(255,182,72,.35);
  aspect-ratio:16/10;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-top:18px;
}
.illustration svg{width:80%;height:80%;}
.illustration .ph-label{position:absolute;bottom:10px;left:0;right:0;text-align:center;font-size:.68rem;color:var(--text-faint);font-weight:600;padding:0 12px;}

.about-desc{margin-top:14px;font-size:.88rem;line-height:1.65;color:var(--text-dim);}

.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px;}
.info-item{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px;}
.info-item svg{width:20px;height:20px;color:var(--accent-2);margin-bottom:8px;}
.info-label{font-size:.66rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-faint);font-weight:700;}
.info-value{margin-top:4px;font-size:.85rem;font-weight:600;color:var(--text);line-height:1.4;}

.social-row{display:flex;gap:12px;margin-top:20px;}
.social-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;padding:12px 8px;background:var(--surface);border:1px solid var(--line);border-radius:14px;color:var(--text-dim);font-size:.72rem;font-weight:600;text-decoration:none;transition:border-color .2s;}
.social-btn:hover{border-color:rgba(255,182,72,.35);}
.social-btn svg{width:20px;height:20px;color:var(--accent);}

.footer-note{margin-top:26px;text-align:center;font-size:.72rem;color:var(--text-faint);}

/* Tab bar */
.tabbar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:20;
  max-width:480px;
  margin:0 auto;
  display:flex;
  gap:8px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(9,15,28,.86);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
}
.tab-btn{
  flex:1;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:4px;
  padding:8px 6px;
  border:none;
  background:transparent;
  color:var(--text-faint);
  font-size:.72rem;
  font-weight:700;
  letter-spacing:.02em;
  border-radius:14px;
  transition:color .2s,background .2s;
}
.tab-btn svg{width:20px;height:20px;}
.tab-btn.active{color:var(--accent);background:rgba(255,182,72,.09);}