:root {
    --bg:#ffffff;
    --ink:#0b1220;
    --muted:#667085;
    --primary:#3468ff;
    --primary-ink:#fff;
    --surface:#f6f8ff;
    --stroke:#e6e9f5;
    --accent:#0f1f5b;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
    margin: 0;
    font-family: Inter, system-ui, Segoe UI, Roboto, Arial, sans-serif;
    color: var(--ink);
    background: var(--bg);
}

/* Layout & Header */
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
header {
    position: sticky;
    top: 0;
    background: rgba(255,255,255,.9);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--stroke);
    z-index: 50;
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: flex; gap: 10px; align-items: center; font-weight: 800; letter-spacing: .2px; }
.menu { display: flex; gap: 28px; align-items: center; }
.menu a { color: var(--ink); text-decoration: none; font-weight: 500; }
.menu a.active { color: var(--primary); }

/* Buttons */
.cta { display: flex; gap: 12px; align-items: center; }
.btn { padding: 10px 16px; border-radius: 12px; font-weight: 600; border: 1px solid transparent;
    cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; }
.btn-ghost { background:#fff; border-color: var(--stroke); color: var(--ink); }
.btn-ghost:hover { border-color:#cfd5ea; }
.btn-primary { background: var(--primary); color: var(--primary-ink); }
.btn-primary:hover { filter: brightness(.95); }

/* Hero */
.hero { padding: 56px 0 32px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.eyebrow { color: var(--accent); font-weight: 700; text-transform: uppercase; font-size: 12px; letter-spacing: .12em; }

h1 {
    font-size: 44px;
    line-height: 1.1;
    margin: 28px 0 16px;
}

.lead {
    color: var(--muted);
    max-width: 48ch;
}

/* Features & Cards */

.features {
    padding: 8px 0 20px;
}
.grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 18px;
    margin: 20px 0;
}


/* Cards */

.card {
    background: #fff;
    border: 1px solid var(--stroke);
    border-radius: 18px;
    padding: 18px;
}

.card-icon {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.card h3 { margin:0 0 6px; font-size:18px; }
.icon { width:42px; height:42px; border-radius:12px; background:var(--surface);
    display:grid; place-items:center; border:1px solid var(--stroke);
    font-size:20px; color:var(--primary); }
.muted { color: var(--muted); }

/* About page helpers */
.kpi { font-size:36px; font-weight:800; }
.list { display:grid; gap:10px; margin:10px 0; }

/* Contacts: form, map, layout */
.grid-contacts {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 22px;
    margin:24px 0;
}

.contacts-form {
    width: 100%;
}

label {
    display: block;
    font-weight: 600;
    margin: 10px 0 6px;
}
input, textarea {
    width: 100%;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid var(--stroke);
    font:inherit; background:#fff;
}
textarea {
    min-height:140px;
    resize:vertical;
}
.btn-primary-form {
    display:inline-block;
    margin-top:12px;
    padding:12px 18px;
    border-radius:12px;
    background:var(--primary);
    color:#fff;
    text-decoration:none;
    border:0;
}
.info {
    display:grid;
    gap:10px;
}
.map {
    height: 260px;
    border-radius: 16px;
    background: var(--surface);
    border: 1px solid var(--stroke); display:grid; place-items:center; color:var(--muted);
}

/* Footer */
footer { margin-top:28px; border-top:1px solid var(--stroke); padding:24px 0; color:var(--muted); }
.foot { display:flex; flex-wrap:wrap; gap:18px; justify-content:center; }

/* Responsive */
@media (max-width: 900px) {
    .hero-grid { grid-template-columns:1fr; gap:28px; }
    h1 { font-size:36px; }
    .grid { grid-template-columns:1fr; }
    .grid-contacts { grid-template-columns:1fr; }
}
@media (max-width:640px) {
    .menu { display:none; }
}