/* ============================================================
   Token system
   Ink   #12131A   dark section bg
   Paper #FAF8F4   light section bg
   Signal#2FD6BE   primary accent — waveform / active states
   Ember #FF6B4A   premium / paid accent, used sparingly
   Graphite #23232B  body text on paper
   Fog   #C9C7D6   body text on ink
   Mist  #8B899C   muted / secondary text
   Line  hairline borders
   ============================================================ */
:root{
  --ink:#12131A;
  --ink-2:#1B1C26;
  --paper:#FAF8F4;
  --paper-2:#F1EEE6;
  --signal:#2FD6BE;
  --signal-dim: rgba(47,214,190,.14);
  --ember:#FF6B4A;
  --ember-dim: rgba(255,107,74,.12);
  --graphite:#23232B;
  --fog:#CCCAD9;
  --mist:#8B899C;
  --line: rgba(35,35,43,.12);
  --line-ink: rgba(255,255,255,.10);
  --radius: 10px;
  --display: 'Space Grotesk', 'Noto Sans SC', sans-serif;
  --body: 'IBM Plex Sans', 'Noto Sans SC', 'IBM Plex Sans JP', sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--graphite);
  font-family:var(--body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%;}
a{color:inherit;}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px;}

/* ---------- Nav ---------- */
.nav{
  position:sticky;top:0;z-index:40;
  background:rgba(250,248,244,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:600;font-size:19px;letter-spacing:-.01em;text-decoration:none;color:var(--graphite);}
.brand-mark{width:22px;height:22px;flex:none;}
.nav-links{display:flex;align-items:center;gap:28px;font-size:14.5px;}
.nav-links a{text-decoration:none;color:var(--graphite);opacity:.75;}
.nav-links a:hover{opacity:1;}
.lang-switch{display:flex;gap:2px;border:1px solid var(--line);border-radius:999px;padding:3px;font-family:var(--mono);font-size:12.5px;}
.lang-switch a{padding:5px 10px;border-radius:999px;text-decoration:none;color:var(--mist);}
.lang-switch a.active{background:var(--ink);color:var(--paper);}
.nav-cta{background:var(--ink);color:var(--paper);padding:9px 18px;border-radius:999px;text-decoration:none;font-size:14px;font-weight:600;white-space:nowrap;}

/* ---------- Hero ---------- */
.hero{background:var(--ink);color:var(--fog);padding:64px 0 88px;position:relative;overflow:hidden;}
.hero .wrap{position:relative;z-index:2;}
.eyebrow{
  font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;color:var(--signal);
  display:inline-flex;align-items:center;gap:8px;margin-bottom:22px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 4px var(--signal-dim);}
.hero h1{
  font-family:var(--display);font-size:clamp(34px,5.4vw,58px);line-height:1.06;letter-spacing:-.02em;
  color:#fff;margin:0 0 22px;max-width:820px;font-weight:600;
}
.hero h1 em{font-style:normal;color:var(--signal);}
.hero p.lead{font-size:17.5px;color:var(--fog);max-width:560px;margin:0 0 34px;}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:56px;}
.btn{
  font-family:var(--body);font-weight:600;font-size:15px;padding:13px 24px;border-radius:999px;
  text-decoration:none;display:inline-flex;align-items:center;gap:8px;border:1px solid transparent;cursor:pointer;
}
.btn-primary{background:var(--signal);color:#08211D;}
.btn-primary:hover{filter:brightness(1.06);}
.btn-ghost{background:transparent;color:var(--fog);border-color:var(--line-ink);}
.btn-ghost:hover{border-color:var(--fog);}

/* ---- ticker: same phrase cycling through scripts ---- */
.ticker-row{display:flex;align-items:baseline;gap:14px;font-family:var(--mono);font-size:12.5px;color:var(--mist);margin-bottom:10px;}
.ticker{
  font-family:var(--body);font-size:clamp(22px,3.2vw,32px);font-weight:500;color:#fff;
  height:1.5em;overflow:hidden;position:relative;
}
.ticker-track{display:flex;flex-direction:column;animation:tick 12s steps(6) infinite;}
.ticker-track span{height:1.5em;display:flex;align-items:center;}
@keyframes tick{
  0%,14%{transform:translateY(0);}
  16.6%,30.6%{transform:translateY(-1.5em);}
  33.2%,47.2%{transform:translateY(-3em);}
  49.8%,63.8%{transform:translateY(-4.5em);}
  66.4%,80.4%{transform:translateY(-6em);}
  83%,97%{transform:translateY(-7.5em);}
  100%{transform:translateY(-9em);}
}

/* waveform */
.wave{display:flex;align-items:flex-end;gap:3px;height:46px;margin-top:40px;opacity:.9;}
.wave i{width:3px;background:var(--signal);border-radius:2px;animation:wv 1.4s ease-in-out infinite;opacity:.55;}
.wave i:nth-child(odd){opacity:.9;}
@keyframes wv{0%,100%{transform:scaleY(.25);}50%{transform:scaleY(1);}}

/* ---------- Section shell ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--paper-2);}
.section-head{max-width:600px;margin-bottom:52px;}
.tc{font-family:var(--mono);font-size:12.5px;color:var(--mist);letter-spacing:.04em;margin-bottom:14px;display:block;}
.section-head h2{font-family:var(--display);font-size:clamp(26px,3.4vw,36px);letter-spacing:-.015em;margin:0 0 14px;font-weight:600;}
.section-head p{color:var(--mist);font-size:16px;margin:0;max-width:520px;}

/* ---------- steps (timecode structure) ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.step{background:var(--paper);padding:30px 24px;}
.step .tc{color:var(--signal-2, var(--mist));}
.step .tc{color:#0E8C7A;}
.step h3{font-family:var(--display);font-size:18px;margin:6px 0 8px;font-weight:600;}
.step p{color:var(--mist);font-size:14.5px;margin:0;}

/* ---------- feature grid ---------- */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:var(--paper);}
.card h3{font-family:var(--display);font-size:17px;margin:14px 0 8px;font-weight:600;}
.card p{color:var(--mist);font-size:14.5px;margin:0;}
.badge-free{display:inline-block;font-family:var(--mono);font-size:11px;color:#0E8C7A;background:var(--signal-dim);padding:3px 9px;border-radius:999px;}
.badge-pro{display:inline-block;font-family:var(--mono);font-size:11px;color:#B84B32;background:var(--ember-dim);padding:3px 9px;border-radius:999px;}
.icon-box{width:34px;height:34px;border-radius:8px;background:var(--ink);display:flex;align-items:center;justify-content:center;}
.icon-box svg{width:17px;height:17px;stroke:var(--signal);}

/* ---------- language showcase ---------- */
.lang-cloud{display:flex;flex-wrap:wrap;gap:10px;}
.lang-chip{border:1px solid var(--line);border-radius:999px;padding:9px 16px;font-size:14.5px;background:var(--paper);}
.lang-chip b{font-weight:600;}
.lang-chip span{color:var(--mist);font-size:12.5px;margin-left:6px;font-family:var(--mono);}

/* ---------- pricing ---------- */
.price-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.price-card{border:1px solid var(--line);border-radius:14px;padding:34px;background:var(--paper);}
.price-card.pro{background:var(--ink);color:var(--fog);border-color:var(--ink);position:relative;}
.price-card.pro .plan-name, .price-card.pro h4{color:#fff;}
.plan-name{font-family:var(--mono);font-size:12.5px;color:var(--mist);letter-spacing:.05em;}
.price-card h4{font-family:var(--display);font-size:32px;margin:10px 0 4px;font-weight:600;}
.price-card h4 small{font-size:14px;font-weight:400;color:var(--mist);}
.price-card ul{list-style:none;padding:0;margin:22px 0 28px;display:flex;flex-direction:column;gap:11px;font-size:14.5px;}
.price-card.pro ul{color:var(--fog);}
.price-card li{display:flex;gap:10px;align-items:flex-start;}
.price-card li svg{flex:none;width:15px;height:15px;margin-top:3px;stroke:var(--signal);}
.price-card .locked svg{stroke:var(--mist);}
.price-card .locked{color:var(--mist);}
.price-card.pro .locked{color:var(--fog);}
.price-card.pro .locked svg{stroke:var(--signal);}

/* ---------- demo panel ---------- */
.demo{border:1px solid var(--line);border-radius:16px;background:var(--paper);overflow:hidden;}
.demo-top{display:flex;justify-content:space-between;align-items:center;padding:16px 22px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:12.5px;color:var(--mist);}
.dropzone{margin:26px;border:1.5px dashed var(--line);border-radius:12px;padding:44px 20px;text-align:center;color:var(--mist);font-size:14.5px;}
.dropzone strong{color:var(--graphite);display:block;margin-bottom:6px;font-size:15.5px;}
.demo-out{margin:0 26px 26px;background:var(--ink);border-radius:10px;padding:20px 22px;font-family:var(--mono);font-size:13px;color:var(--fog);line-height:1.9;}
.demo-out .t{color:var(--signal);margin-right:10px;}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);padding:22px 0;}
.faq-item h4{font-family:var(--display);font-size:16.5px;margin:0 0 8px;font-weight:600;}
.faq-item p{color:var(--mist);font-size:14.5px;margin:0;max-width:640px;}

/* ---------- footer ---------- */
footer{background:var(--ink);color:var(--mist);padding:44px 0;font-size:13.5px;}
footer .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;}
footer a{color:var(--fog);text-decoration:none;margin-left:18px;}

/* ---------- responsive ---------- */
@media (max-width:860px){
  .nav-links{display:none;}
  .steps{grid-template-columns:1fr 1fr;}
  .grid3{grid-template-columns:1fr;}
  .price-grid{grid-template-columns:1fr;}
}

@media (prefers-reduced-motion: reduce){
  .ticker-track,.wave i{animation:none !important;}
}

:focus-visible{outline:2px solid var(--signal);outline-offset:2px;}