:root {
    --bg: #0f172a;
    --text: #0b1020;
    --muted: #64748b;
    --white: #ffffff;
    --primary: #4f46e5;
    --accent: #22d3ee;
    --green: #10b981;
    --red: #ef4444;
    --card: #0b1226;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: radial-gradient(1200px 800px at 80% -20%, rgba(79,70,229,0.25), transparent 70%),
                radial-gradient(800px 600px at -20% 10%, rgba(34,211,238,0.25), transparent 60%),
                linear-gradient(180deg, #0b1226 0%, #0f172a 60%, #0b1226 100%);
    color: var(--white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
header { padding: 1.25rem 2rem; }
.header-inner { display: flex; justify-content: space-between; align-items: center; max-width: 1200px; margin: 0 auto; width: 100%; }
.logo { display: inline-flex; align-items: center; text-decoration: none; }
.nav { display: flex; align-items: center; gap: 1rem; }
.nav a { color: #cbd5e1; text-decoration: none; font-weight: 500; }
.nav a:hover { color: var(--white); }
.lang-select { padding: .5rem .6rem; border-radius: 8px; border: 1px solid #1f2937; background: #0b1226; color: #cbd5e1; }
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: .9rem 1.2rem; border-radius: 12px; border: none; cursor: pointer;
    font-size: 1.1rem; font-weight: 600; color: var(--white);
    background: linear-gradient(90deg, var(--primary), var(--accent));
    box-shadow: 0 10px 30px rgba(79,70,229,.35);
    transition: all .2s ease, box-shadow .2s ease-in-out;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(79,70,229,.45); }
.btn.secondary { background: #0b1226; border: 1px solid #1f2937; color: #cbd5e1; box-shadow: none; transition: all .2s ease, box-shadow .2s ease-in-out; }
.btn.secondary:hover { background: #0b1226; border: 1px solid rgba(79,70,229,.45); color: #cbd5e1; box-shadow: none; }
main { flex: 1; }
.hero { display: grid; grid-template-columns: 1.1fr .9fr; gap: 2rem; padding: 4rem 2rem 5rem; align-items: center; max-width: 1200px; margin: 0 auto; }
.hero h1 { font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.05; font-weight: 800; }
.hero p { margin-top: 1rem; color: #cbd5e1; font-size: 1.1rem; }
.cta { margin-top: 1.75rem; display: flex; gap: 1rem; flex-wrap: wrap; }
.visual { position: relative; min-height: 340px; border-radius: 18px; overflow: hidden; background: #0b1226; box-shadow: 0 20px 60px rgba(0,0,0,.35), inset 0 0 0 1px #1f2937; }
.orb { position: absolute; filter: blur(30px); opacity: .8; }
.orb.one { width: 240px; height: 240px; left: -30px; top: -30px; background: #22d3ee; }
.orb.two { width: 320px; height: 320px; right: -40px; bottom: -40px; background: #4f46e5; }
.device { position: absolute; inset: 30px; border-radius: 16px; background: #101934; box-shadow: 0 10px 30px rgba(0,0,0,.45), inset 0 0 0 1px #1f2937; padding: 18px; }
.bar { height: 10px; border-radius: 8px; background: #1f2937; overflow: hidden; margin-top: 12px; }
.bar > span { display: block; height: 100%; width: 65%; background: linear-gradient(90deg, var(--green), #34d399); }
.file { display: flex; justify-content: space-between; padding: 10px 12px; margin-top: 10px; border-radius: 10px; background: #0b1226; border: 1px solid #1f2937; color: #cbd5e1; font-size: .95rem; }
.section { max-width: 1200px; margin: 0 auto; padding: 5rem 2.25rem; position: relative; }
.section h2 { font-size: 2.2rem; font-weight: 800; }
.muted { color: #94a3b8; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; margin-top: 1.5rem; }
.card { background: var(--card); border: 1px solid #1f2937; border-radius: 16px; padding: 1.4rem; box-shadow: 0 10px 30px rgba(15,23,42,.25); }
.card .title { display: flex; align-items: center; gap: .7rem; font-weight: 700; }
.icon { width: 38px; height: 38px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; background: #0b1226; border: 1px solid #1f2937; font-size: 1.2rem; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-top: 1.2rem; }
.step { background: var(--card); border: 1px solid #1f2937; border-radius: 16px; padding: 1.2rem; }
.security { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 1.2rem; }
.badge { display: inline-block; padding: .4rem .6rem; border-radius: 999px; background: rgba(16,185,129,.15); color: #34d399; font-weight: 700; font-size: .85rem; }
.note { margin-top: .8rem; color: #94a3b8; font-size: .95rem; }
.split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 2rem; align-items: center; }
.media { position: relative; border-radius: 18px; background: #0b1226; border: 1px solid #1f2937; min-height: 320px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,.35); }
.media .glow { position:absolute; inset: -40% -20% auto auto; width: 70%; height: 70%; background: radial-gradient(closest-side, rgba(34,211,238,.25), transparent 60%); filter: blur(20px); }
.media .strip { position:absolute; right: 0; top: 0; bottom: 0; width: 40%; background: linear-gradient(180deg, rgba(79,70,229,.35), transparent); }
.media img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; opacity:.9; }
.bullets { display: grid; gap: .9rem; margin-top: 1rem; }
.bullets .item { background: var(--card); border: 1px solid #1f2937; border-radius: 12px; padding: .9rem 1rem; }
.showcase { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 1.5rem; }
.show-card { border-radius: 16px; border:1px solid #1f2937; background: linear-gradient(180deg, #0f1a34, #0b1226); min-height: 220px; box-shadow: 0 10px 40px rgba(0,0,0,.35); padding: 1rem; color:#cbd5e1; }
.cta-banner { border-radius: 18px; padding: 2rem; background: linear-gradient(90deg, var(--primary), var(--accent)); display: flex; justify-content: space-between; align-items: center; gap: 1rem; box-shadow: 0 20px 60px rgba(79,70,229,.45); }
.footer { margin-top: 2rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; padding-top: 2rem; }
.footer-col h4 { color: var(--white); margin-bottom: .6rem; }
.footer-col a, footer a { display:block; color:#94a3b8; text-decoration:none; margin:.3rem 0; }
footer a {display:inline-block}
.footer-col a:hover, footer a:hover { color: var(--white); }
footer { padding: 2rem; text-align: center; color: #94a3b8; }
.footer-inner { max-width: 1200px; margin: 0 auto; }
.page-header { padding: 1rem 2rem; display:flex; justify-content:space-between; align-items:center; }
.header-right { display:flex; align-items:center; }
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: none; align-items: center; justify-content: center; z-index: 1000; }
.modal-overlay.show { display: flex; }
.modal { background: var(--card); border: 1px solid #1f2937; border-radius: 16px; padding: 1.5rem; width: 100%; max-width: 560px; color: var(--white); box-shadow: 0 20px 60px rgba(0,0,0,.45); }
.modal h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: .4rem; }
.modal .muted { color: #94a3b8; margin-bottom: 1rem; }
.modal .row { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; }
.modal .field { margin: .6rem 0; }
.modal label { display:block; margin-bottom:.3rem; color:#cbd5e1; font-weight:600; }
.modal input, .modal textarea { width: 100%; padding: .8rem; border: 2px solid #1f2937; background: #0b1226; color: #cbd5e1; border-radius: 8px; }
.modal textarea { min-height: 120px; resize: vertical; }
.modal .actions { display: flex; justify-content: flex-end; gap: .6rem; margin-top: 1rem; }
.modal .status { display:none; margin-top:.8rem; }
.modal .status.success { color:#6ee7b7; }
.modal .status.error { color:#fca5a5; }
.section.section-alt::before {
    content:"";
    position:absolute;
    left:50%;
    transform:translateX(-50%);
    top:0;
    width:100vw;
    height:100%;
    background: linear-gradient(180deg, #0a1328 0%, #0b1226 60%, #0a1328 100%);
    border-top: 1px solid #1f2937;
    border-bottom: 1px solid #1f2937;
    z-index:-1;
}
.legal { max-width: 980px; margin: 0 auto; padding: 2rem; }
.paper { background: var(--card); border: 1px solid #1f2937; border-radius: 16px; padding: 2rem 2.2rem; box-shadow: 0 20px 60px rgba(0,0,0,.35); }
.prose { color: #cbd5e1; font-size: 1.05rem; line-height: 1.7; }
.prose h1 { color: var(--white); font-size: 2rem; line-height: 1.2; font-weight: 800; margin-bottom: .4rem; }
.prose h2 { color: var(--white); font-size: 1.5rem; line-height: 1.3; font-weight: 800; margin-top: 1.6rem; margin-bottom: .4rem; }
.prose h3 { color: var(--white); font-size: 1.2rem; line-height: 1.3; font-weight: 700; margin-top: 1.2rem; margin-bottom: .3rem; }
.prose p { margin: .6rem 0 .9rem; }
.prose ul, .prose ol { margin: .4rem 0 1rem; padding-left: 1.2rem; }
.prose li { margin: .3rem 0; }
.prose a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.prose code { background: #0b1226; border: 1px solid #1f2937; padding: 2px 6px; border-radius: 6px; color: #e5e7eb; }
.prose .muted { color: #94a3b8; }
@media (max-width: 980px) {
    .section { padding: 3.5rem 1.25rem; }
    .hero { grid-template-columns: 1fr; padding: 3rem 1.25rem 4rem; }
    .grid { grid-template-columns: 1fr 1fr; }
    .steps { grid-template-columns: 1fr 1fr; }
    .security { grid-template-columns: 1fr; }
    .split { grid-template-columns: 1fr; }
    .showcase { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .legal { padding: 1rem; }
    .paper { padding: 1.4rem 1.2rem; border-radius: 14px; }
    .prose h1 { font-size: 1.6rem; }
    .prose h2 { font-size: 1.25rem; }
}