@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;800&display=swap');
:root {
    --bg-dark: #04231c;
    --accent: #0d9488;
    --accent-light: #14b8a6;
    --text-dark: #0f172a;
    --text-muted: #475569;
    --border: #e2e8f0;
    --card-bg: #ffffff;
    --section-alt: #f1f5f9;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    background: #f8fafc;
    color: var(--text-dark);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 40px; }

/* ── NAV (тёмный) ── */
nav {
    height: 80px;
    background: #04231c;
    position: fixed; width: 100%; top: 0; z-index: 1000;
    display: flex; align-items: center;
    border-bottom: 1px solid rgba(45, 212, 191, 0.2);
}
.nav-container { display: flex; justify-content: space-between; align-items: center; width: 100%; }
.logo { font-size: 1.5rem; font-weight: 800; letter-spacing: 1px; color: #fff; }
.nav-links { display: flex; list-style: none; gap: 28px; align-items: center; }
.nav-links a { color: rgba(255,255,255,0.85); text-decoration: none; font-size: 0.88rem; font-weight: 600; transition: 0.2s; }
.nav-links a:hover { color: var(--accent-light); }
.lang-link { cursor: pointer; color: rgba(255,255,255,0.4); transition: 0.2s; font-size: 0.85rem; }
.lang-link.active { color: var(--accent-light); font-weight: 800; }
.nav-logo-img { height: 56px; width: auto; display: block; }

/* ── HERO (тёмный) ── */
.hero {
    padding: 200px 0 120px;
    text-align: center;
    background: linear-gradient(135deg, #04231c 0%, #063d30 60%, #04231c 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute; inset: 0;
    background: url('https://images.unsplash.com/photo-1550751827-4bd374c3f58b?auto=format&fit=crop&q=80&w=2000') center/cover;
    opacity: 0.07;
}
.hero .container { position: relative; }
.hero h1 { font-size: 3.4rem; font-weight: 800; margin-bottom: 20px; line-height: 1.1; color: #fff; }
.hero p { font-size: 1.15rem; color: rgba(255,255,255,0.7); max-width: 600px; margin: 0 auto; }
.hero-stats { display: flex; justify-content: center; gap: 80px; margin-top: 64px; }
.stat-item { text-align: center; }
.stat-num { font-size: 3.2rem; font-weight: 800; color: var(--accent-light); display: block; }
.stat-item p { color: rgba(255,255,255,0.6); font-size: 0.9rem; margin-top: 4px; }

/* ── SECTIONS (светлые) ── */
section { padding: 90px 0; background: #fff; }
section.alt-bg { background: var(--section-alt); }

h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 56px;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-dark);
}
h2::after {
    content: '';
    display: block;
    width: 48px; height: 3px;
    background: var(--accent);
    margin: 14px auto 0;
    border-radius: 2px;
}

/* ── CARDS ── */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }

.card {
    background: #fff;
    padding: 36px;
    border-radius: 16px;
    border: 1px solid var(--border);
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    transition: transform 0.25s, box-shadow 0.25s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 8px 28px rgba(0,0,0,0.1); }
.card i { font-size: 2.4rem; color: var(--accent); margin-bottom: 18px; display: block; }
.card h3 { color: var(--text-dark); font-size: 1.1rem; margin-bottom: 10px; }
.card p { color: var(--text-muted); font-size: 0.95rem; }

/* ── MISSION ── */
.mission {
    text-align: center;
    font-size: 1.15rem;
    max-width: 820px;
    margin: 0 auto 56px;
    color: var(--text-dark);
    font-weight: 500;
    border-left: 4px solid var(--accent);
    padding: 24px 32px;
    border-radius: 0 12px 12px 0;
    background: #f0fdfb;
    text-align: left;
    line-height: 1.75;
}

/* ── SERVICES ── */
.service-group {
    background: #fff;
    padding: 36px;
    border-radius: 16px;
    border: 1px solid var(--border);
    box-shadow: 0 2px 12px rgba(0,0,0,0.05);
}
.service-group h3 { color: var(--accent); margin-bottom: 18px; font-size: 1.15rem; }
.service-group ul { list-style: none; }
.service-group li {
    margin-bottom: 10px;
    padding-left: 22px;
    position: relative;
    color: var(--text-muted);
    font-size: 0.95rem;
}
.service-group li::before { content: '→'; position: absolute; left: 0; color: var(--accent); }

/* ── TECH CARDS ── */
.tech-card {
    background: #fff;
    padding: 36px;
    border-radius: 16px;
    border: 1px solid var(--border);
    box-shadow: 0 2px 12px rgba(0,0,0,0.05);
}
.tech-card h3 { color: var(--accent); font-size: 1.4rem; margin-bottom: 12px; }
.tech-card p { color: var(--text-muted); font-size: 0.95rem; }

/* ── STEPS ── */
.steps-box { display: flex; flex-direction: column; justify-content: center; }
.steps-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 10px; }
.steps-grid div { display: flex; align-items: center; gap: 12px; font-weight: 600; color: var(--text-muted); font-size: 0.95rem; }
.steps-grid span:first-child {
    background: var(--accent);
    color: #fff;
    width: 30px; height: 30px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 0.85rem;
    flex-shrink: 0;
}

/* ── PROJECTS TABLE ── */
table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 12px; overflow: hidden; border: 1px solid var(--border); }
th, td { padding: 20px 24px; text-align: left; border-bottom: 1px solid var(--border); color: var(--text-dark); }
th { background: #f0fdfb; color: var(--accent); text-transform: uppercase; font-size: 0.78rem; letter-spacing: 0.08em; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #f8fafc; }

/* ── EQUIPMENT CARDS ── */
.equip-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.equip-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 2px 16px rgba(0,0,0,0.07);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
}
.equip-card:hover {
    border-color: var(--accent);
    transform: translateY(-6px);
    box-shadow: 0 12px 36px rgba(13,148,136,0.15);
}
.equip-img-wrap {
    height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 28px 16px;
    background: #f8fafc;
}
.equip-img-wrap img {
    max-width: 100%;
    max-height: 100%;
    width: auto; height: auto;
    object-fit: contain;
    display: block;
    transition: transform 0.4s ease;
    filter: drop-shadow(0 6px 16px rgba(0,0,0,0.15));
}
.equip-card:hover .equip-img-wrap img { transform: scale(1.05); }
.equip-card-label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    border-top: 1px solid var(--border);
    font-size: 0.87rem;
    font-weight: 600;
    color: var(--accent);
    background: #f0fdfb;
}
.equip-card-label i { font-size: 0.75rem; opacity: 0.6; flex-shrink: 0; }

/* ── FOOTER (тёмный) ── */
footer {
    padding: 72px 0;
    background: #04231c;
    border-top: 3px solid var(--accent);
}
.footer-grid { display: flex; justify-content: space-between; align-items: flex-start; }
.footer-contacts h3 { color: #fff; margin-bottom: 20px; font-size: 1.1rem; }
.footer-contacts p { margin-bottom: 12px; color: rgba(255,255,255,0.65); font-size: 0.9rem; }
.footer-contacts a { color: rgba(255,255,255,0.65); }
.footer-contacts i { color: var(--accent-light); margin-right: 10px; }
.footer-brand .logo { color: #fff; font-size: 1.4rem; font-weight: 800; margin-bottom: 8px; }
.footer-brand p { color: rgba(255,255,255,0.4); font-size: 0.85rem; }

/* ── АДАПТИВНОСТЬ (MEDIA QUERIES) ── */

/* Кнопка меню (по умолчанию скрыта) */
.menu-toggle {
    display: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1001;
}

@media (max-width: 1024px) {
    .container { padding: 0 24px; }
    .hero h1 { font-size: 2.8rem; }
    .hero-stats { gap: 40px; }
}

@media (max-width: 768px) {
    /* Навигация */
    nav { height: 70px; }
    .menu-toggle { display: block; } /* Показываем бургер */

    .nav-links {
        display: none; /* Прячем обычное меню */
        flex-direction: column;
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: #04231c;
        padding: 40px 24px;
        gap: 20px;
        border-bottom: 2px solid var(--accent);
        text-align: center;
        box-shadow: 0 10px 15px rgba(0,0,0,0.3);
    }

    /* Класс, который будет добавляться через JS */
    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        font-size: 1.1rem;
        display: block;
        padding: 10px 0;
    }

    .lang-switch {
        margin-top: 20px;
        padding-top: 20px;
        border-top: 1px solid rgba(255,255,255,0.1);
    }

    .nav-logo-img { height: 40px; }

    /* Hero секция */
    .hero { padding: 140px 0 80px; }
    .hero h1 { font-size: 2.1rem; }
    .hero-stats { 
        flex-direction: column; 
        gap: 32px; 
    }
    .stat-num { font-size: 2.6rem; }

    /* Сетки */
    .grid-2, .grid-3, .equip-grid { 
        grid-template-columns: 1fr; 
        gap: 20px;
    }

    /* Таблицы */
    .project-table {
        overflow-x: auto;
        border-radius: 12px;
    }
    table { min-width: 500px; }

    /* Футер */
    .footer-grid {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }
    .footer-contacts, .footer-brand { width: 100%; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 1.8rem; }
    h2 { font-size: 1.6rem; }
    .card { padding: 24px; }
    .equip-img-wrap { height: 180px; }
}