:root {
  --bg: #0c0c0c;
  --panel: #121212;
  --soft: #1a1a1a;
  --text: #f1f1f1;
  --muted: #b8b8b8;
  --brand: #62ffa1;
  --brand-2: #88f;
  --accent: #ffe066;
  --danger: #ff6b6b;
  --ok: #5efc8d;
  --grid: rgba(255,255,255,.06);
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Space Grotesk', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, 'Apple Color Emoji', 'Segoe UI Emoji';
  background: radial-gradient(1200px 800px at 85% -10%, rgba(98,255,161,.08), transparent 60%),
              radial-gradient(1200px 800px at 10% -10%, rgba(136,136,255,.12), transparent 60%),
              var(--bg);
  color: var(--text);
  line-height: 1.4;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(12,12,12,.7);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand .logo { font-size: 18px; filter: drop-shadow(0 4px 20px rgba(98,255,161,.45)); }
.brand .name { font-weight: 700; letter-spacing: 0.4px; }

.nav { display: flex; align-items: center; gap: 20px; }
.nav a {
  color: var(--text);
  text-decoration: none;
  opacity: .85;
  transition: opacity .2s ease;
}
.nav a:hover { opacity: 1; }
.nav .cta {
  padding: 10px 14px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 999px;
}

/* Hero */
.hero { padding: 72px 0 40px; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: center;
}
.hero-copy h1 {
  font-size: clamp(32px, 4.2vw, 56px);
  line-height: 1.05;
  margin: 0 0 12px;
}
.hero-copy p { color: var(--muted); max-width: 54ch; }
.hero-ctas { display: flex; gap: 12px; margin: 20px 0 8px; }
.privacy-note { color: var(--muted); font-size: 14px; }

.hero-art { display: grid; place-items: center; }
.grid {
  display: grid;
  grid-template-columns: repeat(4, 120px);
  grid-auto-rows: 120px;
  gap: 12px;
  transform: rotate(-3deg);
}
.grid .cell {
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  box-shadow: var(--shadow);
}
.grid .cell.large { grid-column: span 2; grid-row: span 2; }

/* Sections */
.section-header { text-align: center; margin: 60px auto 24px; }
.section-header h2 { margin: 0 0 6px; font-size: clamp(24px, 3vw, 36px); }
.section-header p { color: var(--muted); margin: 0; }

/* Buttons */
.btn {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 12px;
  padding: 12px 16px;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn.primary { background: linear-gradient(90deg, var(--brand), var(--brand-2)); color: #0b0b0b; border: none; }
.btn.ghost { background: rgba(255,255,255,.04); }
.btn.xl { font-size: 18px; padding: 16px 20px; border-radius: 14px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* Demo */
.demo { padding: 24px 0 64px; }
.demo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.panel {
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
}
.panel-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 10px; }
.panel-head .hint { color: var(--muted); font-size: 12px; }

.dropzone {
  display: block;
  position: relative;
  border: 1px dashed rgba(255,255,255,.22);
  border-radius: var(--radius-sm);
  aspect-ratio: 4/3;
  overflow: hidden;
  cursor: pointer;
}
.dropzone input { display: none; }
.dz-inner { position: absolute; inset: 0; display: grid; place-items: center; gap: 8px; color: var(--muted); }
.dz-icon { font-size: 20px; opacity: .9; }
.dz-text { font-size: 14px; }
.dropzone img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: none; }

.status { color: var(--muted); font-size: 13px; margin-top: 8px; }

.controls .slider-row { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; align-items: center; }
input[type="range"] { width: 100%; }
.slider-meta { color: var(--muted); }
.slider-meta.small { font-size: 12px; opacity: .9; }

.actions { display: flex; gap: 10px; margin: 16px 0; }

.result {
  background: rgba(0,0,0,.25);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-sm);
  padding: 12px;
}
.result-title { font-weight: 600; margin-bottom: 6px; }
.result-line { display: flex; justify-content: space-between; color: var(--muted); }
.result-note { margin-top: 8px; color: var(--muted); font-size: 13px; }

.footnote { color: var(--muted); text-align: center; margin-top: 12px; font-size: 13px; }

/* Features */
.features { padding: 40px 0 60px; }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.card { background: var(--soft); border: 1px solid rgba(255,255,255,.06); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); }
.card-title { font-weight: 600; margin-bottom: 6px; }
.card p { color: var(--muted); margin: 0; }

/* Pricing */
.pricing { padding: 20px 0 60px; }
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.price-card { background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02)); border: 1px solid rgba(255,255,255,.08); border-radius: var(--radius); padding: 18px; position: relative; box-shadow: var(--shadow); }
.price-card .price-head { font-weight: 700; margin-bottom: 6px; }
.price-card .price-tag { font-family: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, 'Liberation Mono', monospace; font-size: 22px; margin-bottom: 8px; }
.price-card ul { margin: 0; padding-left: 18px; color: var(--muted); }
.price-card.highlight { border-color: rgba(98,255,161,.5); box-shadow: 0 12px 50px rgba(98,255,161,.18); }
.price-card .badge { position: absolute; top: -10px; right: 12px; background: linear-gradient(90deg, var(--brand), var(--brand-2)); color: #0b0b0b; border-radius: 999px; padding: 4px 10px; font-size: 12px; font-weight: 700; }

/* Contact */
.contact { padding: 40px 0 80px; }
.contact-inner { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; align-items: center; background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02)); border: 1px solid rgba(255,255,255,.08); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.contact-copy p { color: var(--muted); }
.contact-cta { text-align: right; }
.contact-cta .sub { color: var(--muted); font-size: 13px; margin-top: 6px; }

/* Footer */
.site-footer { border-top: 1px solid rgba(255,255,255,.06); padding: 20px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; }
.foot-meta { color: var(--muted); }
.foot-links { display: flex; align-items: center; gap: 10px; }
.foot-links a { color: var(--muted); text-decoration: none; }
.foot-links a:hover { color: var(--text); }

/* Responsive */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; }
  .grid { transform: none; grid-template-columns: repeat(4, 90px); grid-auto-rows: 90px; }
}
@media (max-width: 900px) {
  .demo-grid { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr 1fr; }
  .price-grid { grid-template-columns: 1fr; }
  .contact-inner { grid-template-columns: 1fr; text-align: left; }
  .contact-cta { text-align: left; }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: repeat(4, 70px); grid-auto-rows: 70px; }
}