/* CoTrader marketing site */
:root { --bg: #0b0f17; --bg2: #0e1420; --panel: #121826; --panel2: #161d2e; --line: #232c40; --text: #e6ebf5; --muted: #8e9ab4; --accent: #4f8cff; --up: #26c281; --down: #ef5350; --warn: #f5a524; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; } a:hover { text-decoration: underline; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 22px; } .narrow { max-width: 780px; }
h1, h2, h3, h4 { line-height: 1.15; margin: 0; letter-spacing: -.01em; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 9px 18px; border-radius: 10px; border: 1px solid var(--line); color: var(--text); background: var(--panel2); font: 600 14px system-ui; cursor: pointer; text-decoration: none !important; transition: .15s; }
.btn:hover { border-color: var(--accent); }
.btn.pri { background: var(--accent); border-color: var(--accent); color: #fff; } .btn.pri:hover { filter: brightness(1.12); }
.btn.ghost { background: transparent; } .btn.big { padding: 13px 26px; font-size: 15.5px; border-radius: 12px; } .btn.wide { width: 100%; }

/* nav */
.nav { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.nav.scrolled { border-bottom-color: var(--line); }
.nav-in { display: flex; align-items: center; gap: 22px; height: 62px; }
.logo { display: inline-flex; align-items: center; gap: 9px; color: var(--text); } .logo svg { width: 28px; height: 28px; } .logo b { font-size: 17px; letter-spacing: -.01em; }
.beta { font: 700 9px system-ui; letter-spacing: .08em; color: var(--accent); border: 1px solid var(--accent); border-radius: 4px; padding: 1px 5px; }
.links { display: flex; gap: 22px; margin-left: 12px; flex: 1; } .links a { color: var(--muted); font-size: 14px; } .links a:hover { color: var(--text); text-decoration: none; }
.nav-cta { display: flex; gap: 8px; } .nav-cta .btn { padding: 7px 14px; font-size: 13.5px; }
.burger { display: none; background: none; border: 0; color: var(--text); font-size: 22px; cursor: pointer; margin-left: auto; }

/* hero */
.hero { position: relative; padding: 54px 0 20px; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -120px 0 auto 0; height: 560px; background: radial-gradient(ellipse 60% 70% at 50% 0%, color-mix(in srgb, var(--accent) 24%, transparent), transparent 70%); pointer-events: none; }
.hero .wrap { position: relative; }
.hero-txt { max-width: 780px; margin: 0 auto; text-align: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 4px 14px; margin: 0 0 18px; background: var(--panel); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--up); box-shadow: 0 0 0 3px color-mix(in srgb, var(--up) 22%, transparent); }
.hero h1 { font-size: clamp(34px, 5.4vw, 60px); font-weight: 800; letter-spacing: -.03em; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, var(--accent), #8fb5ff 60%, var(--up)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: clamp(16px, 1.7vw, 19px); color: var(--muted); max-width: 680px; margin: 18px auto 24px; }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.trust { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 22px; justify-content: center; padding: 0; margin: 20px 0 0; color: var(--muted); font-size: 13px; }
.trust li::before { content: "✓ "; color: var(--up); font-weight: 700; }
.shot { margin: 40px auto 0; max-width: 1080px; }
.frame { border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: var(--panel); box-shadow: 0 40px 120px rgba(0,0,0,.55), 0 0 0 1px rgba(255,255,255,.02); }
.frame-bar { display: flex; align-items: center; gap: 6px; padding: 9px 12px; background: var(--panel2); border-bottom: 1px solid var(--line); }
.frame-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--line); } .frame-bar span { margin: 0 auto; font-size: 11.5px; color: var(--muted); transform: translateX(-24px); }
.frame-view { position: relative; width: 100%; overflow: hidden; background: var(--bg); }
.frame-view iframe { position: absolute; left: 0; top: 0; width: 1440px; height: 900px; border: 0; transform-origin: 0 0; pointer-events: none; }

/* strip */
.strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg2); margin-top: 52px; }
.strip-in { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; padding: 22px; }
.strip-in div { display: flex; flex-direction: column; } .strip-in b { font-size: 20px; } .strip-in span { color: var(--muted); font-size: 13px; }

/* sections */
.sec { padding: 84px 0; } .sec.alt { background: var(--bg2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 800; letter-spacing: -.02em; text-align: center; }
.sub { color: var(--muted); text-align: center; max-width: 640px; margin: 12px auto 36px; } .sub.left { text-align: left; margin-left: 0; }
.cards { display: grid; gap: 16px; } .c3 { grid-template-columns: repeat(3, 1fr); } .c4 { grid-template-columns: repeat(4, 1fr); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 22px; } .card h3 { font-size: 17px; margin-bottom: 8px; } .card p { margin: 0; color: var(--muted); font-size: 14.5px; }
.card.f { position: relative; padding-top: 28px; } .card.f i { position: absolute; top: 12px; right: 16px; font: 700 12px ui-monospace, monospace; color: var(--accent); font-style: normal; opacity: .8; }
.card:hover { border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); }
.two { display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px; align-items: center; } .two h2 { text-align: left; }
.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; } .ticks li { padding-left: 30px; position: relative; color: var(--muted); } .ticks li b { color: var(--text); }
.ticks li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 20px; height: 20px; border-radius: 50%; background: color-mix(in srgb, var(--up) 18%, transparent); color: var(--up); display: grid; place-items: center; font-size: 12px; font-weight: 700; }
.quote { background: linear-gradient(160deg, var(--panel), var(--panel2)); border: 1px solid var(--line); border-radius: 16px; padding: 30px; } .quote p { font-size: 19px; line-height: 1.5; margin: 0 0 14px; } .quote span { color: var(--muted); font-size: 13px; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 34px; }
.step { padding: 4px 6px; } .step b { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--accent); color: #fff; margin-bottom: 12px; } .step h3 { font-size: 17px; margin-bottom: 6px; } .step p { margin: 0; color: var(--muted); font-size: 14.5px; }

/* pricing */
.toggle { display: flex; width: max-content; margin: 0 auto 28px; background: var(--panel); border: 1px solid var(--line); border-radius: 999px; padding: 3px; }
.toggle button { background: none; border: 0; color: var(--muted); padding: 7px 18px; border-radius: 999px; font: 600 13.5px system-ui; cursor: pointer; } .toggle button.on { background: var(--accent); color: #fff; } .toggle small { opacity: .85; font-weight: 500; }
.plan { display: flex; flex-direction: column; position: relative; } .plan.hot { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 20px 60px color-mix(in srgb, var(--accent) 16%, transparent); }
.badge { position: absolute; top: -11px; left: 50%; transform: translateX(-50%); background: var(--accent); color: #fff; font: 700 11px system-ui; padding: 3px 12px; border-radius: 999px; }
.price { font: 800 40px ui-monospace, "Cascadia Mono", Menlo, monospace; margin-top: 10px; } .per { margin: 0 0 14px !important; font-size: 13px !important; }
.plan ul { list-style: none; margin: 0 0 20px; padding: 0; flex: 1; display: grid; gap: 8px; } .plan li { padding-left: 22px; position: relative; font-size: 14.5px; } .plan li::before { content: "✓"; position: absolute; left: 0; color: var(--up); font-weight: 700; } .plan em { color: var(--muted); font-size: 12px; font-style: normal; }

/* faq */
details { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 0 18px; margin-bottom: 10px; }
summary { cursor: pointer; padding: 16px 0; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; } summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--accent); font-size: 20px; line-height: 1; } details[open] summary::after { content: "–"; }
details p { margin: 0 0 16px; color: var(--muted); font-size: 15px; }

/* final + footer */
.final { text-align: center; padding: 90px 0; background: radial-gradient(ellipse 60% 100% at 50% 100%, color-mix(in srgb, var(--accent) 20%, transparent), transparent 70%); }
.final h2 { font-size: clamp(26px, 3.6vw, 40px); font-weight: 800; letter-spacing: -.02em; } .final p { color: var(--muted); margin: 12px 0 24px; }
.foot { border-top: 1px solid var(--line); background: var(--bg2); padding: 40px 0 28px; }
.foot-in { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 28px; }
.fcol { display: flex; flex-direction: column; gap: 8px; } .fcol h4 { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: 4px; } .fcol a { color: var(--text); font-size: 14px; } .fcol p { color: var(--muted); font-size: 14px; margin: 4px 0 0; }
.disclaimer { margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; line-height: 1.6; }

@media (max-width: 920px) {
  .c4, .strip-in { grid-template-columns: repeat(2, 1fr); } .c3 { grid-template-columns: 1fr; } .two { grid-template-columns: 1fr; } .steps { grid-template-columns: repeat(2, 1fr); }
  .links { display: none; position: absolute; top: 62px; left: 0; right: 0; background: var(--bg); border-bottom: 1px solid var(--line); flex-direction: column; padding: 14px 22px; gap: 14px; margin: 0; } .links.open { display: flex; }
  .burger { display: block; } .nav-cta { margin-left: 0; } .nav-cta .ghost { display: none; }
  .foot-in { grid-template-columns: 1fr 1fr; } .sec { padding: 60px 0; }
}
@media (max-width: 520px) { .c4, .strip-in, .steps { grid-template-columns: 1fr; } .nav-cta .btn { padding: 6px 10px; } .foot-in { grid-template-columns: 1fr; } }