:root {
    --primary: #0a5cff;
    --primary-dark: #0043c7;
    --text: #1a2233;
    --muted: #6b7688;
    --bg: #ffffff;
    --bg-alt: #f4f7fc;
    --radius: 14px;
    --container: 1200px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Inter', -apple-system, Segoe UI, Roboto, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #fff;
    box-shadow: 0 2px 12px rgba(0,0,0,.05);
}
.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 24px;
}
.header__logo img { display: block; }
.nav {
    display: flex;
    gap: 24px;
}
.nav a { color: var(--muted); font-weight: 500; transition: color .2s; }
.nav a:hover { color: var(--primary); }

.btn {
    display: inline-block;
    padding: 12px 22px;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
    border: none;
    font-size: 15px;
}
.btn--primary { background: var(--primary); color: #fff; }
.btn--primary:hover { background: var(--primary-dark); }
.btn--ghost { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn--ghost:hover { background: var(--primary); color: #fff; }
.btn--phone { background: var(--bg-alt); color: var(--text); }

.burger { display: none; background: none; border: none; flex-direction: column; gap: 5px; cursor: pointer; }
.burger span { width: 26px; height: 2px; background: var(--text); }

/* Hero */
.hero {
    background: linear-gradient(135deg, #eaf1ff 0%, #ffffff 100%);
    padding: 80px 0;
}
.hero__inner {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 48px;
    align-items: center;
}
.hero h1 { font-size: clamp(28px, 4vw, 48px); line-height: 1.15; margin: 16px 0 20px; }
.hero__lead { font-size: 18px; color: var(--muted); max-width: 640px; }
.badge {
    display: inline-block;
    background: #fff;
    color: var(--primary);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(10,92,255,.15);
}
.hero__actions { display: flex; gap: 14px; margin: 28px 0; flex-wrap: wrap; }
.hero__stats {
    display: flex;
    gap: 40px;
    margin-top: 32px;
    flex-wrap: wrap;
}
.hero__stats div { display: flex; flex-direction: column; }
.hero__stats strong { font-size: 32px; color: var(--primary); }
.hero__stats span { color: var(--muted); font-size: 14px; }
.hero__icon { width: 100%; max-width: 340px; display: block; margin: 0 auto; }

/* Sections */
.section { padding: 80px 0; }
.section--alt { background: var(--bg-alt); }
.section__title { font-size: clamp(26px, 3.2vw, 38px); margin-bottom: 16px; }
.section__lead { font-size: 17px; color: var(--muted); max-width: 760px; margin-bottom: 40px; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
    background: #fff;
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: 0 6px 24px rgba(20,40,90,.06);
    transition: transform .2s;
}
.card:hover { transform: translateY(-4px); }
.card__icon { font-size: 32px; margin-bottom: 12px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--muted); }

/* Services */
.services { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.service {
    background: #fff;
    border-radius: var(--radius);
    padding: 28px;
    border-left: 4px solid var(--primary);
}
.service h3 { margin-bottom: 10px; color: var(--primary-dark); }
.service p { color: var(--muted); }

/* Advantages */
.advantages { list-style: none; display: grid; gap: 14px; font-size: 17px; }
.advantages li {
    padding: 16px 20px;
    background: var(--bg-alt);
    border-radius: var(--radius);
}
.advantages strong { color: var(--primary); }

/* Form */
.form { max-width: 720px; display: grid; gap: 16px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form input, .form textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #dbe2ee;
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 15px;
    outline: none;
    transition: border .2s;
}
.form input:focus, .form textarea:focus { border-color: var(--primary); }
.form__result { font-weight: 600; }
.form__result--ok { color: #14a44d; }
.form__result--err { color: #dc3545; }

/* Footer */
.footer { background: #0a1020; color: #c9d2e3; padding: 60px 0 0; margin-top: 0; }
.footer__inner { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer h4 { color: #fff; margin-bottom: 14px; }
.footer a { display: block; color: #c9d2e3; margin-bottom: 8px; }
.footer a:hover { color: #fff; }
.footer__bottom {
    border-top: 1px solid rgba(255,255,255,.1);
    padding: 20px 0;
    font-size: 14px;
    color: #8a94a8;
}

/* Responsive */
@media (max-width: 900px) {
    .hero__inner, .cards, .services, .footer__inner, .form__row { grid-template-columns: 1fr; }
    .hero__visual { display: none; }
    .nav { display: none; }
    .nav.is-open {
        display: flex;
        position: absolute;
        top: 72px; left: 0; right: 0;
        background: #fff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 8px 16px rgba(0,0,0,.1);
    }
    .burger { display: flex; }
    .header { position: relative; }
    .btn--phone { display: none; }
}