:root {
  --bg: #0b1020;
  --bg2: #0f1630;
  --panel: #151d38;
  --line: #26315a;
  --text: #e7ecff;
  --muted: #9aa7d0;
  --accent: #38e0c9;
  --accent2: #7c8cff;
  --win: #163b34;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 22px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* HERO */
.hero {
  background: radial-gradient(1200px 500px at 70% -10%, rgba(124,140,255,.25), transparent 60%),
              radial-gradient(900px 500px at 10% 0%, rgba(56,224,201,.18), transparent 55%),
              var(--bg2);
  border-bottom: 1px solid var(--line);
  padding: 80px 0 70px;
  text-align: center;
}
.badge {
  display: inline-block; font-size: 13px; letter-spacing: .4px;
  color: var(--accent); border: 1px solid var(--line);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 20px;
  background: rgba(56,224,201,.06);
}
.hero h1 { font-size: 60px; letter-spacing: -1px; margin-bottom: 14px; }
.tagline { max-width: 720px; margin: 0 auto 28px; color: var(--muted); font-size: 19px; }
.tagline b { color: var(--text); }
.cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block; padding: 12px 22px; border-radius: 10px;
  font-weight: 600; font-size: 15px; cursor: pointer; border: 1px solid transparent;
  transition: transform .06s ease, opacity .2s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #071018; }
.btn.ghost { background: transparent; border-color: var(--line); color: var(--text); }
.btn.full { width: 100%; margin-top: 14px; }
.btn.small { padding: 8px 14px; font-size: 13px; }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }

/* SECTIONS */
.section { padding: 66px 0; border-bottom: 1px solid var(--line); }
.section.alt { background: var(--bg2); }
h2 { font-size: 32px; margin-bottom: 10px; letter-spacing: -.5px; }
.lead { color: var(--muted); max-width: 760px; margin-bottom: 34px; font-size: 17px; }

/* STEPS */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.step {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 14px; padding: 22px 20px;
}
.step .num {
  width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center;
  font-weight: 700; color: #071018; margin-bottom: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
}
.step h3 { font-size: 18px; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 14.5px; }
.step b { color: var(--text); }

/* DEMO */
.demo-grid { display: grid; grid-template-columns: 340px 1fr; gap: 22px; align-items: start; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 20px; }
.drop {
  display: block; border: 2px dashed var(--line); border-radius: 12px;
  padding: 40px 16px; text-align: center; color: var(--muted); cursor: pointer;
  transition: border-color .2s, color .2s;
}
.drop:hover, .drop.hover { border-color: var(--accent); color: var(--text); }
.hint { color: var(--muted); font-size: 13px; margin-top: 12px; }

.imgs { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.imgs figure { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.imgs img { width: 100%; display: block; background: #000; min-height: 120px; object-fit: contain; }
.imgs figcaption { text-align: center; font-size: 13px; color: var(--muted); padding: 8px; }

.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 16px; }
.metric { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 12px; text-align: center; }
.metric .v { font-size: 24px; font-weight: 700; color: var(--accent); }
.metric .k { font-size: 12px; color: var(--muted); margin-top: 2px; }
.results .btn { margin-top: 16px; }

.status { margin-top: 16px; color: var(--muted); min-height: 22px; font-size: 14.5px; }
.status.err { color: #ff8a8a; }

/* TABLE */
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: var(--panel); border-radius: 12px; overflow: hidden; }
th, td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--line); font-size: 15px; }
th { color: var(--muted); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: .4px; }
tr.win td { background: var(--win); font-weight: 600; }
.note { color: var(--muted); margin-top: 20px; font-size: 15px; }
.note b { color: var(--text); }

footer { padding: 30px 0; text-align: center; color: var(--muted); font-size: 14px; }

@media (max-width: 820px) {
  .hero h1 { font-size: 44px; }
  .steps { grid-template-columns: 1fr 1fr; }
  .demo-grid { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: 1fr 1fr; }
}