:root {
  --bg: #0a0a0b;
  --steel: #111114;
  --plate: #16161a;
  --line: #232328;
  --bone: #e4e4e7;
  --mute: #8b8b94;
  --ghost: #7a7a84;
  --gold: #a78bfa;
  --gold-2: #c4b5fd;
  --ok: #34d399;
  --ember: #f87171;
  --cyan: #22d3ee;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", Inter, system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--bone); font: 15px/1.5 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: var(--gold); text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
img { max-width: 100%; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.nav {
  display: flex; align-items: center; gap: 18px;
  height: 56px; border-bottom: 1px solid var(--line); position: sticky; top: 0;
  background: rgba(10,10,11,.88); backdrop-filter: blur(16px); z-index: 20;
}
.brand { font-weight: 650; letter-spacing: -0.04em; color: var(--bone); font-size: 15px; }
.brand i { color: var(--gold); font-style: normal; }
.nav > a { color: var(--mute); font-size: 13px; white-space: nowrap; }
.nav > a:hover, .nav > a.on { color: var(--bone); }
.nav .sp { flex: 1; min-width: 8px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--gold); color: #12081f; border: 0; border-radius: 6px;
  padding: 10px 16px; font-weight: 650; cursor: pointer; font-size: 13px;
}
.btn-ghost { background: transparent; color: var(--bone); border: 1px solid var(--line); }
.btn:hover { filter: brightness(1.06); }

.hero {
  display: grid; grid-template-columns: 1fr 1.05fr; gap: 56px;
  padding: 64px 0 40px; align-items: center;
}
.hero h1 {
  font-size: clamp(40px, 5.4vw, 68px); line-height: .98; letter-spacing: -0.055em;
  margin: 12px 0 18px; font-weight: 650;
}
.hero .lead { color: var(--mute); font-size: 17px; max-width: 34ch; margin: 0 0 28px; line-height: 1.45; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.beta {
  display: inline-block; border: 1px solid #3b2b63; color: var(--gold-2);
  border-radius: 999px; padding: 3px 10px; font-size: 12px;
}

/* Characteristic object: 4:5 compose canvas */
.studio {
  background: var(--steel); border: 1px solid var(--line); border-radius: 10px;
  overflow: hidden; box-shadow: 0 40px 80px rgba(0,0,0,.55);
}
.studio-bar {
  display: flex; gap: 8px; align-items: center; padding: 10px 12px;
  border-bottom: 1px solid var(--line); font-size: 11px; color: var(--mute);
}
.studio-bar b { color: var(--bone); font-weight: 600; }
.studio-bar .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); }
.studio-body { display: grid; grid-template-columns: 1.1fr .9fr; min-height: 340px; }
.canvas {
  background: #050506; aspect-ratio: 4/5; max-height: 420px; width: 100%;
  position: relative; overflow: hidden;
}
.canvas .grain {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(167,139,250,.28), transparent 55%),
    linear-gradient(160deg, #1a1428 0%, #0a0a0b 60%);
}
.canvas .meta {
  position: absolute; left: 12px; bottom: 12px; right: 12px;
  font-size: 12px; color: var(--bone);
}
.canvas .meta span { display: block; color: var(--mute); font-size: 11px; margin-top: 4px; }
.side {
  padding: 14px; border-left: 1px solid var(--line); display: flex; flex-direction: column; gap: 10px;
}
.side label { font-size: 10px; color: var(--ghost); }
.cap-box {
  flex: 1; background: var(--plate); border: 1px solid var(--line); border-radius: 6px;
  padding: 10px; font-size: 12px; color: var(--mute); min-height: 88px;
}
.cap-box em { color: var(--bone); font-style: normal; }
.side .go {
  background: var(--gold); color: #12081f; border: 0; border-radius: 6px;
  padding: 8px; font-size: 12px; font-weight: 650;
}

.band { padding: 8px 0 72px; }
.band h2 { font-size: 28px; letter-spacing: -0.04em; margin: 0 0 8px; font-weight: 650; }
.band .sub { color: var(--mute); margin: 0 0 28px; max-width: 48ch; }
.split { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.split article { background: var(--bg); padding: 22px 20px; }
.split h3 { margin: 0 0 8px; font-size: 15px; }
.split p { margin: 0; color: var(--mute); font-size: 14px; }

.mods { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.mods div { background: var(--steel); padding: 16px; font-size: 13px; }
.mods b { display: block; margin-bottom: 4px; }
.mods span { color: var(--mute); font-size: 12px; }

.faq details { border-bottom: 1px solid var(--line); padding: 14px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { color: var(--mute); margin: 8px 0 0; }

.price-table { width: 100%; border-collapse: collapse; font-size: 13px; margin: 8px 0 48px; }
.price-table th, .price-table td { border-bottom: 1px solid var(--line); padding: 11px 10px; text-align: left; vertical-align: top; }
.price-table th { color: var(--mute); font-weight: 550; }
.ok { color: var(--ok); }
.no { color: #3a3a42; }

.pkg-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin: 24px 0 40px; }
.pkg {
  border: 1px solid var(--line); background: var(--steel); padding: 16px; border-radius: 8px;
  display: flex; flex-direction: column; gap: 8px;
}
.pkg h3 { margin: 0; font-size: 16px; }
.pkg p { margin: 0; color: var(--mute); font-size: 12px; flex: 1; }
.pkg.on { border-color: #3b2b63; }

form.stack { display: grid; gap: 10px; max-width: 420px; }
label { font-size: 12px; color: var(--mute); }
input, select, textarea {
  background: var(--plate); border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px;
}
.hint { font-size: 12px; color: var(--mute); font-family: var(--mono); }
.err { color: var(--ember); min-height: 1.2em; font-size: 13px; }

.auth-shell { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; padding: 48px 0 80px; align-items: start; }
.auth-shell h1 { letter-spacing: -.04em; margin: 0 0 8px; font-size: 36px; }

footer.site {
  border-top: 1px solid var(--line); padding: 28px 0 48px; color: var(--mute); font-size: 13px;
  display: flex; gap: 18px; flex-wrap: wrap; align-items: center;
}
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); display: inline-block; margin-right: 6px; }
.skip-link {
  position: absolute; left: 16px; top: -48px;
  background: var(--gold); color: #12081f; padding: 8px 12px;
  border-radius: 6px; z-index: 100; font-weight: 650;
}
.skip-link:focus, .skip-link:focus-visible { top: 12px; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.lang-switch { display: inline-flex; gap: 2px; }
.lang-switch button {
  background: transparent; border: 1px solid var(--line); color: var(--mute);
  border-radius: 4px; padding: 3px 7px; font-size: 10px; cursor: pointer;
}
.lang-switch button[aria-pressed="true"] { color: var(--bone); border-color: var(--gold); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media (max-width: 900px) {
  .hero, .studio-body, .split, .mods, .pkg-row, .auth-shell { grid-template-columns: 1fr; }
  .canvas { max-height: 280px; }
  .nav { gap: 10px; overflow-x: auto; }
}