:root {
  --bg: #0b0e14;
  --bg-2: #10151f;
  --panel: #151b27;
  --line: #232b3a;
  --text: #e8ecf3;
  --muted: #94a0b5;
  --accent: #ff7a1a;
  --accent-2: #ffb347;
  --gold: #f5c542;
  --ok: #3ddc84;
  --bad: #ff5c5c;
  --radius: 14px;
  --shadow: 0 10px 40px rgba(0, 0, 0, .45);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, rgba(255, 122, 26, .18), transparent 60%), var(--bg);
  color: var(--text);
  line-height: 1.55;
}
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .6em; font-weight: 800; letter-spacing: -.01em; }
h1 { font-size: clamp(1.9rem, 4.2vw, 3.1rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; }
code { background: var(--bg-2); border: 1px solid var(--line); padding: .1em .4em; border-radius: 6px; font-size: .95em; }
.container { width: min(1120px, 100% - 32px); margin-inline: auto; }
.narrow { max-width: 760px; }
.center { text-align: center; }
.muted { color: var(--muted); }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: var(--accent); color: #000; padding: 8px 12px; z-index: 99; }

/* header */
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(11, 14, 20, .85); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .08em; color: var(--text); }
.brand-mark { width: 28px; height: 28px; color: var(--accent); }
.nav nav { display: flex; gap: 20px; margin-left: auto; }
.nav nav a { color: var(--muted); font-weight: 500; }
.nav nav a:hover { color: var(--text); text-decoration: none; }
@media (max-width: 820px) { .nav nav { display: none; } .nav .btn { margin-left: auto; } }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 18px; border-radius: 10px; font-weight: 600; border: 1px solid transparent; cursor: pointer; transition: transform .12s, box-shadow .12s, background .12s; white-space: nowrap; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #140a02; box-shadow: 0 6px 24px rgba(255, 122, 26, .35); }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--text); }
.btn-lg { padding: 14px 24px; font-size: 1.05rem; }
.btn:disabled { opacity: .6; cursor: progress; transform: none; }

/* hero */
.hero { padding: 72px 0 56px; }
.hero-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: center; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }
.eyebrow { color: var(--accent-2); font-weight: 600; text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 60ch; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0; }
.trust { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 18px; color: var(--muted); font-size: .92rem; }
.trust li::before { content: "✓ "; color: var(--ok); }
.hero-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); display: grid; gap: 12px; }
.hc-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; background: var(--bg-2); padding: 12px 14px; border-radius: 10px; }
.hc-arrow { text-align: center; color: var(--accent); font-size: 1.4rem; }
.tag { font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.tag-gold { color: var(--gold); }
.hc-chance { display: flex; justify-content: space-between; align-items: baseline; padding-top: 6px; border-top: 1px dashed var(--line); }
.hc-chance strong { font-size: 2rem; color: var(--accent-2); }

/* sections */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-lead { color: var(--muted); max-width: 72ch; font-size: 1.05rem; }
.steps { list-style: none; padding: 0; margin: 28px 0 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; counter-reset: s; }
.steps li { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.steps p { color: var(--muted); margin: 0; font-size: .95rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.card p { color: var(--muted); margin: 0; font-size: .95rem; }
.plain { padding-left: 1.2em; color: var(--muted); }
.plain li { margin-bottom: .5em; }

/* demo upgrader */
.upgrader { display: grid; grid-template-columns: 1fr 1.1fr 1fr; gap: 16px; margin-top: 28px; }
@media (max-width: 900px) { .upgrader { grid-template-columns: 1fr; } }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.panel-center { display: flex; flex-direction: column; align-items: center; gap: 14px; text-align: center; }
.field { display: grid; gap: 6px; font-size: .9rem; color: var(--muted); }
.field select, .field input[type=range] { width: 100%; }
.field select { background: var(--bg-2); color: var(--text); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font: inherit; }
.field-inline { width: 100%; grid-template-columns: 1fr auto; align-items: center; }
.field-inline input { grid-column: 1 / -1; accent-color: var(--accent); }
.price { margin: 12px 0 0; color: var(--muted); }
.price strong { color: var(--text); }
.wheel { position: relative; width: 190px; height: 190px; }
.wheel svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.wheel .track { fill: none; stroke: var(--line); stroke-width: 10; }
.wheel .arc { fill: none; stroke: var(--accent); stroke-width: 10; stroke-linecap: round; stroke-dasharray: 326.7; stroke-dashoffset: 326.7; transition: stroke-dashoffset .35s ease; }
.wheel-label { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; }
.wheel-label span { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; }
.wheel-label strong { font-size: 2.2rem; color: var(--accent-2); }
.pointer { position: absolute; left: 50%; top: -4px; width: 0; height: 0; border-left: 8px solid transparent; border-right: 8px solid transparent; border-top: 12px solid var(--gold); transform: translateX(-50%) rotate(0deg); transform-origin: 50% 99px; transition: transform 2.4s cubic-bezier(.15, .85, .2, 1); }
.result { min-height: 1.5em; font-weight: 600; margin: 0; }
.result.ok { color: var(--ok); }
.result.bad { color: var(--bad); }
.note { color: var(--muted); font-size: .88rem; margin-top: 16px; }

/* faq */
details { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 4px 18px; margin-bottom: 10px; }
summary { cursor: pointer; font-weight: 600; padding: 12px 0; list-style: none; position: relative; padding-right: 28px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 0; top: 10px; color: var(--accent-2); font-size: 1.3rem; }
details[open] summary::after { content: "−"; }
details p { color: var(--muted); margin: 0 0 14px; }

.cta-final { background: linear-gradient(180deg, transparent, rgba(255, 122, 26, .08)); }

/* footer */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0 24px; color: var(--muted); font-size: .92rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer nav { display: grid; gap: 8px; }
.site-footer .brand { color: var(--text); margin-bottom: 8px; }
.copyright { margin-top: 24px; font-size: .85rem; }