:root{
    --bg:#0b1020;
    --text:#e9ecff;
    --muted: rgba(233,236,255,.72);
    --card: rgba(255,255,255,.07);
    --stroke: rgba(255,255,255,.14);
    --shadow: 0 18px 45px rgba(0,0,0,.28);

    --gradA:#22d3ee; /* turquesa */
    --gradB:#8b5cf6; /* violeta */
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
    margin:0;
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
    color:var(--text);
    background: radial-gradient(1200px 600px at 15% 10%, rgba(34,211,238,.18), transparent 60%),
    radial-gradient(900px 500px at 85% 35%, rgba(139,92,246,.18), transparent 60%),
    var(--bg);
}

a{ color:inherit; text-decoration:none; }
.container{
    width:min(1100px, calc(100% - 48px));
    margin:0 auto;
}

/* Topbar */
.topbar{
    position:sticky; top:0; z-index:50;
    background: rgba(11,16,32,.72);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.topbar__inner{
    display:flex; align-items:center; justify-content:space-between;
    padding:14px 0;
}
.brand__logo{ height:34px; width:auto; display:block; }
.nav{
    display:flex; gap:18px; align-items:center;
}
.nav a{ opacity:.9; }
.nav a:hover{ opacity:1; }

.burger{
    display:none;
    width:44px; height:38px;
    border:1px solid rgba(255,255,255,.14);
    background:transparent;
    border-radius:12px;
}
.burger span{
    display:block;
    height:2px;
    margin:6px 10px;
    background: rgba(255,255,255,.85);
    border-radius:999px;
}
.mobile-nav{
    display:none;
    border-top: 1px solid rgba(255,255,255,.08);
    padding:12px 0;
}
.mobile-nav a{
    display:block;
    padding:12px 24px;
    opacity:.9;
}
.mobile-nav a:hover{ opacity:1; }

/* Hero */
.hero{
    position:relative;
    padding:82px 0 56px;
    overflow:hidden;
}
.hero__bg{
    position:absolute; inset:0;
    background:
            linear-gradient(135deg, rgba(34,211,238,.22), rgba(139,92,246,.22)),
            url("../img/banner.jpg") center/cover no-repeat;
    filter: saturate(1.05) contrast(1.04);
    opacity: .92;
}
.hero__bg::after{
    content:"";
    position:absolute; inset:0;
    background: linear-gradient(180deg, rgba(11,16,32,.35), rgba(11,16,32,.88));
}
.hero__inner{
    position:relative;
    text-align:center;
}
.hero__title{
    font-size: clamp(28px, 3.6vw, 46px);
    line-height: 1.08;
    margin:0 0 14px;
    letter-spacing: -.02em;
}
.hero__titleAccent{
    background: linear-gradient(90deg, var(--gradA), var(--gradB));
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
}
.hero__subtitle{
    max-width: 760px;
    margin: 0 auto 26px;
    color: var(--muted);
    font-size: 16px;
    line-height: 1.5;
}
.hero__cta{ display:flex; gap:12px; justify-content:center; flex-wrap:wrap; }
.hero__pill{
    display:inline-flex;
    margin-top:22px;
    padding:10px 14px;
    border-radius:999px;
    border: 1px solid rgba(255,255,255,.14);
    background: rgba(255,255,255,.06);
    box-shadow: var(--shadow);
    color: rgba(233,236,255,.85);
    font-size: 13px;
}

/* Buttons */
.btn{
    display:inline-flex; align-items:center; justify-content:center;
    padding:12px 16px;
    border-radius:14px;
    border: 1px solid rgba(255,255,255,.12);
    background: linear-gradient(90deg, rgba(34,211,238,.95), rgba(139,92,246,.95));
    color:#0b1020;
    font-weight: 700;
    box-shadow: var(--shadow);
    cursor:pointer;
}
.btn:hover{ transform: translateY(-1px); }
.btn--ghost{
    background: rgba(255,255,255,.06);
    color: var(--text);
}
.btn--sm{ padding:9px 12px; border-radius:12px; }

/* Sections */
.section{ padding:56px 0; }
.section--alt{
    background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.00));
    border-top: 1px solid rgba(255,255,255,.06);
    border-bottom: 1px solid rgba(255,255,255,.06);
}
.section__title{
    font-size: 22px;
    margin:0 0 18px;
    letter-spacing: -.01em;
}

.cards{
    display:grid;
    grid-template-columns: repeat(3, 1fr);
    gap:14px;
}
.card{
    padding:18px 18px;
    border-radius: 18px;
    background: var(--card);
    border: 1px solid var(--stroke);
    box-shadow: var(--shadow);
}
.card h3{ margin:0 0 8px; font-size: 16px; }
.card p{ margin:0; color: var(--muted); line-height:1.5; }

.grid{
    display:grid;
    grid-template-columns: 1.1fr .9fr;
    gap:14px;
    align-items:stretch;
}
.panel{
    padding:18px;
    border-radius: 18px;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.12);
    box-shadow: var(--shadow);
}
.panel--glass{
    background: radial-gradient(700px 260px at 20% 10%, rgba(34,211,238,.15), transparent 50%),
    radial-gradient(700px 260px at 80% 50%, rgba(139,92,246,.16), transparent 55%),
    rgba(255,255,255,.05);
}
.panel__title{ margin:0 0 8px; }
.panel__text{ margin:0 0 14px; color: var(--muted); line-height:1.5; }

.list{ list-style:none; padding:0; margin:0; display:grid; gap:10px; }
.list li{ display:flex; gap:10px; align-items:flex-start; color: rgba(233,236,255,.88); }
.dot{
    width:10px; height:10px; border-radius:50%;
    margin-top:5px;
    background: linear-gradient(90deg, var(--gradA), var(--gradB));
    flex: 0 0 10px;
}
.note{ margin:14px 0 0; color: var(--muted); }

.mini{
    display:grid;
    grid-template-columns: repeat(3, 1fr);
    gap:10px;
}
.mini__item{
    padding:12px;
    border-radius:14px;
    border:1px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.05);
}
.mini__k{ display:block; font-size:12px; color: var(--muted); margin-bottom:4px; }
.mini__v{ display:block; font-weight:700; }

/* Contact */
.contact{
    display:grid;
    grid-template-columns: 1fr 1fr;
    gap:14px;
}
.lead{ margin:0 0 8px; font-size: 16px; line-height:1.5; }
.muted{ color: var(--muted); margin:0; }
.small{ font-size: 12px; margin-top:10px; }

.form{
    padding:18px;
    border-radius:18px;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.12);
    box-shadow: var(--shadow);
}
.field{ display:block; margin-bottom:12px; }
.field span{ display:block; font-size:12px; color: var(--muted); margin-bottom:6px; }
.field input, .field textarea{
    width:100%;
    border-radius:14px;
    border:1px solid rgba(255,255,255,.14);
    background: rgba(11,16,32,.55);
    color: var(--text);
    padding:12px 12px;
    outline:none;
}
.field input:focus, .field textarea:focus{
    border-color: rgba(34,211,238,.55);
}

/* Footer */
.footer{
    padding:24px 0 40px;
    border-top: 1px solid rgba(255,255,255,.06);
}
.footer__inner{
    display:flex; gap:10px; justify-content:center; flex-wrap:wrap;
    color: rgba(233,236,255,.8);
}
.footer__sep{ opacity:.6; }

/* Responsive */
@media (max-width: 900px){
    .cards{ grid-template-columns: 1fr; }
    .grid{ grid-template-columns: 1fr; }
    .contact{ grid-template-columns: 1fr; }
    .nav{ display:none; }
    .burger{ display:block; }
    .mobile-nav.is-open{ display:block; }
}