/* ========== Design System (moderno e responsivo) ========== */
:root{--bg:#0B1220;--card:#0f172a;--muted:#94a3b8;--text:#E6EAF2;--brand:#6EE7F9;--grad1:#22d3ee;--grad2:#818cf8;--ring: rgba(110, 231, 249, .35)}
*{box-sizing:border-box}html,body{margin:0}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Cantarell,Ubuntu,sans-serif;background:radial-gradient(1200px 600px at 20% -10%,rgba(129,140,248,.18),transparent),radial-gradient(1000px 400px at 90% 10%,rgba(34,211,238,.16),transparent),var(--bg);color:var(--text);line-height:1.5}
img{display:block;max-width:100%;height:auto}.container{max-width:1120px;margin:0 auto;padding:0 20px}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
.muted{color:var(--muted)}.small{font-size:.875rem}
.site-header{position:sticky;top:0;z-index:50;background:rgba(15,23,42,.6);backdrop-filter:saturate(160%) blur(8px);border-bottom:1px solid rgba(148,163,184,.12)}
.site-header .nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;letter-spacing:.3px}
.brand span{font-size:1.05rem}.brand.mini span{font-size:1rem}
.menu{display:flex;gap:18px;align-items:center}.menu a{color:#e2e8f0}
.hamb{display:none;background:none;border:0;cursor:pointer}
.hamb span{display:block;width:24px;height:2px;background:#e2e8f0;margin:5px 0;border-radius:2px}
.btn{background:linear-gradient(135deg,var(--grad1),var(--grad2));color:#0b1220;border:0;padding:12px 16px;border-radius:12px;font-weight:700;box-shadow:0 10px 30px rgba(129,140,248,.25);transition:transform .05s ease, box-shadow .2s;display:inline-block}
.btn:hover{transform:translateY(-1px);text-decoration:none}.btn.ghost{background:transparent;color:#e2e8f0;border:1px solid rgba(226,232,240,.22);box-shadow:none}.btn.small{padding:8px 12px;font-size:.9rem;border-radius:10px}
.hero{padding:64px 0;background:linear-gradient(180deg,rgba(2,6,23,0) 0%, rgba(2,6,23,.35) 100%)}
.grid-2{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.hero h1{font-size:clamp(2rem,4vw,3rem);line-height:1.1;margin:0 0 10px}.hero p{color:var(--muted);margin:0 0 16px}
.grad{background:linear-gradient(135deg,var(--grad1),var(--grad2));-webkit-background-clip:text;background-clip:text;color:transparent}
.glass{background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));border:1px solid rgba(255,255,255,.12);box-shadow:0 10px 30px rgba(0,0,0,.25);border-radius:16px;padding:20px}
.hero-card .stamp{font-size:.85rem;color:var(--muted);margin-bottom:10px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:8px 0 6px}
.hero-stats div{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:12px;text-align:center}
.hero-stats strong{font-size:1.35rem;display:block}
.section{padding:64px 0}.section.alt{background:linear-gradient(180deg, rgba(129,140,248,.06), rgba(34,211,238,.06))}
.section h2{font-size:1.8rem;margin:0 0 10px}.lead{color:var(--muted);margin:0 0 24px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:16px}
.card h3{margin:0 0 8px}.card p{color:var(--muted);margin:0 0 8px}.card ul{margin:0;padding-left:18px;color:#cbd5e1}
.bullets .bullet{background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:16px}
.bullet .ico{font-size:1.2rem;margin-bottom:8px}
.about .ticks{list-style: '✔ ';padding-left:18px;color:#cbd5e1}.about-card ol{margin:0 0 8px 18px}
.form{background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:16px}
.input{width:100%;padding:12px 14px;background:#0b1220;border:1px solid rgba(226,232,240,.15);border-radius:12px;color:#e2e8f0;outline:none}
.input:focus{box-shadow:0 0 0 4px var(--ring);border-color:transparent}.input::placeholder{color:#64748b}.form label{display:block;margin:10px 0 6px;color:#cbd5e1}
.contact{list-style:none;padding:0;margin:0}.contact li{margin:8px 0}.ticks{margin:10px 0 0}
details{background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:12px;margin:10px 0}
details>summary{cursor:pointer;font-weight:600}details[open]{box-shadow:0 10px 24px rgba(0,0,0,.15)}
.site-footer{border-top:1px solid rgba(148,163,184,.12);padding:24px 0;background:rgba(2,6,23,.35);backdrop-filter:blur(4px)}
.footer-grid{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center}.foot-links{display:flex;gap:14px;flex-wrap:wrap}.brand.mini{display:flex;align-items:center;gap:8px}
dialog{border:none;border-radius:16px;max-width:720px;width:90%;padding:0;background:#0b1220;color:#e2e8f0;border:1px solid rgba(255,255,255,.12)}
dialog article{padding:20px}dialog::backdrop{background:rgba(0,0,0,.4)}
@media (max-width: 960px){.grid-2{grid-template-columns:1fr;gap:20px}.cards{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:1fr}}
@media (max-width: 720px){.menu{display:none}.hamb{display:block}.cards{grid-template-columns:1fr}}