/* CoinDuro — launch page. No inline styles/scripts (strict CSP). */
:root{
  --bg:#0b0f17; --bg2:#0e1320; --surface:#121826; --surface2:#171f30;
  --line:rgba(255,255,255,.08); --line2:rgba(255,255,255,.14);
  --fg:#eaeef6; --muted:#97a1b5; --faint:#6b7489;
  --mint:#3ee6a8; --blue:#6f8dff; --amber:#ffc56b;
  --grad:linear-gradient(120deg,var(--mint),var(--blue));
  --r:18px; --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
.wrap{width:100%;max-width:72rem;margin:0 auto;padding-inline:clamp(1rem,4vw,2rem)}

/* background */
.bg{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.glow{position:absolute;border-radius:50%;filter:blur(90px);opacity:.42}
.g1{width:46rem;height:46rem;background:radial-gradient(circle,#1d8f6c 0,transparent 65%);top:-18rem;right:-12rem}
.g2{width:40rem;height:40rem;background:radial-gradient(circle,#2b3f9e 0,transparent 65%);top:24rem;left:-18rem}
.grid{position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:64px 64px;-webkit-mask-image:radial-gradient(ellipse at 60% 0,#000 0,transparent 70%);mask-image:radial-gradient(ellipse at 60% 0,#000 0,transparent 70%);opacity:.55}

/* nav */
.nav{display:flex;align-items:center;justify-content:space-between;padding-block:1.4rem;gap:1rem}
.brand{display:inline-flex;align-items:center;gap:.6rem;text-decoration:none;font-weight:650;font-size:1.15rem;letter-spacing:-.01em}
.brand b{font-weight:650;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.logo-mark{width:34px;height:34px;flex:none}
.brand.small .logo-mark{width:26px;height:26px}.brand.small{font-size:1rem}
.nav-links{display:flex;align-items:center;gap:1.6rem;font-size:.95rem}
.nav-links a:not(.btn){color:var(--muted);text-decoration:none}
.nav-links a:not(.btn):hover{color:var(--fg)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.85rem 1.35rem;border-radius:12px;font-weight:600;font-size:.97rem;text-decoration:none;transition:transform .15s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;white-space:nowrap}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:3px}
.btn-primary{background:var(--grad);color:#06110d;box-shadow:0 8px 30px -8px rgba(62,230,168,.55)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 36px -8px rgba(62,230,168,.7)}
.btn-ghost{border:1px solid var(--line2);background:rgba(255,255,255,.03);color:var(--fg)}
.btn-ghost:hover{border-color:rgba(255,255,255,.28);background:rgba(255,255,255,.06)}
.btn-sm{padding:.5rem .95rem;font-size:.9rem;border-radius:10px}

/* hero */
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(2rem,5vw,4.5rem);align-items:center;padding-block:clamp(2.5rem,7vw,6rem) clamp(3rem,7vw,6rem)}
.pill{display:inline-flex;align-items:center;gap:.55rem;margin:0 0 1.4rem;padding:.4rem .85rem;border:1px solid rgba(62,230,168,.3);background:rgba(62,230,168,.07);border-radius:999px;font-size:.85rem;color:#bff5df}
.dot{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 0 rgba(62,230,168,.6);animation:ping 2s infinite}
h1{font-size:clamp(2.4rem,5.6vw,4.1rem);line-height:1.04;letter-spacing:-.035em;margin:0 0 1.25rem;font-weight:700}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{font-size:clamp(1.05rem,1.6vw,1.2rem);color:var(--muted);margin:0 0 2rem;max-width:34rem}
.cta{display:flex;flex-wrap:wrap;gap:.8rem}
.cta.center{justify-content:center}
.ticks{list-style:none;padding:0;margin:2rem 0 0;display:flex;flex-wrap:wrap;gap:.6rem 1.5rem;color:var(--muted);font-size:.92rem}
.ticks li{display:flex;align-items:center;gap:.5rem}
.ticks li::before{content:"";width:16px;height:16px;border-radius:50%;background:rgba(62,230,168,.14) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.2l2.2 2.2 4.8-4.9' fill='none' stroke='%233ee6a8' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat}

/* hero visual */
.hero-visual{position:relative;min-height:30rem}
.card{background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));border:1px solid var(--line2);border-radius:var(--r);box-shadow:0 30px 80px -30px rgba(0,0,0,.8),inset 0 1px 0 rgba(255,255,255,.06);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.checkout{position:relative;z-index:2;padding:1.4rem;max-width:25rem;margin-left:auto;animation:float 7s ease-in-out infinite}
.co-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1.2rem}
.co-k{margin:0;font-size:.78rem;color:var(--faint);letter-spacing:.04em;text-transform:uppercase}
.co-v{margin:.1rem 0 0;font-family:var(--mono);font-size:.95rem}
.co-body{display:flex;gap:1.2rem;align-items:center}
.qr{width:7.2rem;height:7.2rem;flex:none;padding:.55rem;background:#eef3f8;border-radius:12px;fill:#0b0f17}
.qr .qr-bg{fill:#eef3f8}
.amount{margin:.15rem 0 0;font-size:1.75rem;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.amount span{font-size:.95rem;color:var(--muted);font-weight:600}
.fiat{text-transform:none;letter-spacing:0;font-size:.85rem}
.addr{margin-top:.8rem;display:flex;flex-direction:column;font-size:.75rem;color:var(--faint)}
.addr code{font-family:var(--mono);color:var(--fg);font-size:.85rem}
.tag{display:inline-block;padding:.22rem .6rem;border-radius:999px;font-size:.74rem;font-weight:600;letter-spacing:.02em;border:1px solid var(--line2);color:var(--muted);background:rgba(255,255,255,.03)}
.tag-live{color:var(--amber);border-color:rgba(255,197,107,.35);background:rgba(255,197,107,.08)}
.steps-mini{list-style:none;display:flex;justify-content:space-between;padding:0;margin:1.4rem 0 .6rem;font-size:.78rem;color:var(--faint)}
.steps-mini li{display:flex;align-items:center;gap:.4rem}
.steps-mini li::before{content:"";width:8px;height:8px;border-radius:50%;border:1.5px solid var(--faint)}
.steps-mini .done{color:var(--muted)}.steps-mini .done::before{background:var(--mint);border-color:var(--mint)}
.steps-mini .active{color:var(--fg)}.steps-mini .active::before{border-color:var(--amber);background:var(--amber);animation:ping-amber 1.6s infinite}
.bar{height:4px;border-radius:4px;background:rgba(255,255,255,.07);overflow:hidden}
.bar span{display:block;height:100%;width:55%;background:var(--grad);border-radius:4px;animation:load 3.2s ease-in-out infinite}
.hook{position:absolute;z-index:3;left:0;bottom:1.2rem;padding:1rem 1.1rem;width:min(20rem,78%);animation:float 7s ease-in-out -3.5s infinite}
.hook-h{margin:0 0 .5rem;font-size:.8rem;color:var(--muted);display:flex;align-items:center;gap:.5rem}
.led{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint)}
pre{margin:0;overflow-x:auto}
code{font-family:var(--mono)}
.hook pre{font-size:.76rem;line-height:1.6;color:#c9d2e3}
.k{color:var(--blue)}.s{color:#9fb4ff}.v{color:var(--mint)}.ok{color:var(--mint)}.c{color:var(--faint)}
.chip-balance{position:absolute;z-index:1;left:8%;top:0;padding:.9rem 1.1rem;width:13rem;animation:float 8s ease-in-out -1.5s infinite}
.bal{margin:.1rem 0 .35rem;font-size:1.35rem;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.bal span{color:var(--muted);font-size:1rem}
.spark{display:block;width:100%;height:30px}

/* sections */
.section{padding-block:clamp(3.5rem,8vw,6.5rem)}
.eyebrow{margin:0 0 .8rem;font-size:.8rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--mint)}
h2{font-size:clamp(1.75rem,3.6vw,2.6rem);line-height:1.12;letter-spacing:-.025em;margin:0 0 2.5rem;max-width:40rem;font-weight:700}
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}
.product{position:relative;padding:1.8rem;border-radius:var(--r);border:1px solid var(--line);background:linear-gradient(180deg,var(--surface),var(--bg2));transition:border-color .25s ease,transform .25s ease}
.product:hover{border-color:var(--line2);transform:translateY(-3px)}
.product h3{margin:1.2rem 0 .5rem;font-size:1.3rem;letter-spacing:-.01em}
.product p{margin:0 0 1.1rem;color:var(--muted);font-size:.97rem}
.product ul{list-style:none;padding:0;margin:0 0 1.5rem;display:grid;gap:.45rem;font-size:.92rem}
.product li{display:flex;gap:.55rem;align-items:center}
.product li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--mint);flex:none}
.p-icon{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(140deg,rgba(62,230,168,.18),rgba(111,141,255,.18));border:1px solid rgba(255,255,255,.1)}
.p-icon svg{width:24px;height:24px;fill:none;stroke:#cfe9ff;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

.dev{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.dev h2{margin-bottom:2rem}
.how{list-style:none;counter-reset:s;padding:0;margin:0;display:grid;gap:1.4rem}
.how li{counter-increment:s;display:grid;grid-template-columns:2.4rem 1fr;column-gap:1rem;row-gap:.15rem}
.how li::before{content:counter(s);grid-row:span 2;width:2.4rem;height:2.4rem;border-radius:12px;display:grid;place-items:center;font-weight:700;font-size:.95rem;color:var(--mint);background:rgba(62,230,168,.08);border:1px solid rgba(62,230,168,.25)}
.how b{font-size:1.05rem}
.how span{color:var(--muted);font-size:.95rem}
.code{padding:0;overflow:hidden}
.code-h{display:flex;align-items:center;gap:.4rem;padding:.8rem 1rem;border-bottom:1px solid var(--line)}
.code-h span{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.14)}
.code-h em{margin-left:auto;font-style:normal;font-size:.75rem;color:var(--faint)}
.code pre{padding:1.3rem 1.4rem;font-size:.85rem;line-height:1.75;color:#d5dcea}

.final-card{text-align:center;padding:clamp(2.5rem,6vw,4.5rem) clamp(1.25rem,5vw,4rem);border-radius:24px;border:1px solid rgba(62,230,168,.22);background:radial-gradient(ellipse at top,rgba(62,230,168,.13),transparent 60%),linear-gradient(180deg,var(--surface),var(--bg2))}
.final-card h2{margin:0 auto 1rem}
.final-card p{color:var(--muted);max-width:34rem;margin:0 auto 2rem;font-size:1.05rem}

/* footer */
.foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem 2rem;padding-block:2.5rem 3rem;border-top:1px solid var(--line);color:var(--faint);font-size:.88rem}
.foot nav{display:flex;flex-wrap:wrap;gap:1.4rem}
.foot nav a{color:var(--muted);text-decoration:none}.foot nav a:hover{color:var(--fg)}
.foot p{margin:0;width:100%}

/* document pages (security) */
.doc{max-width:46rem;padding-block:1rem 4rem}
.doc h1{font-size:clamp(2rem,5vw,2.8rem);margin:2.5rem 0 1rem}
.doc h2{font-size:1.2rem;margin:2.4rem 0 .6rem}
.doc p,.doc li{color:#c3cad8}
.doc ul{padding-left:1.2rem}.doc li{margin:.3rem 0}
.doc a{color:var(--mint);text-underline-offset:3px}
.doc .lede{margin-bottom:0}
.meta{color:var(--faint);font-size:.9rem;margin-top:2.5rem}

/* motion */
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes load{0%{width:18%}60%{width:78%}100%{width:18%}}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(62,230,168,.55)}80%,100%{box-shadow:0 0 0 9px rgba(62,230,168,0)}}
@keyframes ping-amber{0%{box-shadow:0 0 0 0 rgba(255,197,107,.55)}80%,100%{box-shadow:0 0 0 7px rgba(255,197,107,0)}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}html{scroll-behavior:auto}}

/* responsive */
@media (max-width:960px){
  .hero,.dev{grid-template-columns:1fr}
  .hero-visual{min-height:27rem;max-width:32rem;width:100%;margin:0 auto}
  .products{grid-template-columns:1fr}
}
@media (max-width:560px){
  .nav-links a:not(.btn){display:none}
  .hero-visual{min-height:25rem}
  .checkout{margin:3.2rem 0 0;padding:1.1rem}
  .qr{width:5.8rem;height:5.8rem}
  .amount{font-size:1.45rem}
  .chip-balance{left:auto;right:0;top:0;width:11rem}
  .hook{width:88%;bottom:0}
  .btn{width:100%}
}