/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-dark: #0f172a;
    --color-text: #334155;
    --color-light: #f8fafc;
    --color-border: #e2e8f0;
    --color-accent: #3b82f6;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,.08), 0 4px 12px rgba(0,0,0,.04);
    --shadow-lg: 0 4px 24px rgba(0,0,0,.10);
    --transition: .2s ease;
}

html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--color-text);
    line-height: 1.6;
    background: #fff;
}

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-dark); }

.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

.section-title {
    font-size: 2rem;
    color: var(--color-dark);
    text-align: center;
    margin-bottom: 48px;
    font-weight: 700;
}

/* === Header === */
.header {
    position: fixed; top: 0; left: 0; right: 0;
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
}
.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.logo {
    display: flex; align-items: center; gap: 10px;
    font-size: 1.25rem; font-weight: 700; color: var(--color-dark);
    text-decoration: none;
}
.logo__icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 36px; height: 36px;
    background: var(--color-primary);
    color: #fff; border-radius: 8px;
    font-weight: 800; font-size: 1.1rem;
}
.nav { display: flex; gap: 32px; }
.nav a {
    color: var(--color-text); font-weight: 500; font-size: .95rem;
    transition: color var(--transition);
}
.nav a:hover { color: var(--color-primary); }
.nav__product {
    padding: 6px 14px;
    background: var(--color-primary);
    color: #fff !important;
    border-radius: 8px;
    font-size: .85rem;
}
.nav__product:hover { background: var(--color-primary-dark); color: #fff !important; }

.nav-toggle {
    display: none;
    flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-toggle span {
    display: block; width: 24px; height: 2px;
    background: var(--color-dark); border-radius: 2px;
    transition: var(--transition);
}

/* === Hero === */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #eff6ff 0%, #f8fafc 100%);
    text-align: center;
}
.hero h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    color: var(--color-dark);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}
.hero__sub {
    font-size: 1.15rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto 36px;
}
.hero__actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* === Buttons === */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 14px 32px;
    font-size: 1rem; font-weight: 600;
    border-radius: 10px; border: 2px solid transparent;
    cursor: pointer; transition: all var(--transition);
    text-decoration: none;
}
.btn--primary {
    background: var(--color-primary); color: #fff; border-color: var(--color-primary);
}
.btn--primary:hover {
    background: var(--color-primary-dark); border-color: var(--color-primary-dark); color: #fff;
}
.btn--outline {
    background: transparent; color: var(--color-primary); border-color: var(--color-primary);
}
.btn--outline:hover {
    background: var(--color-primary); color: #fff;
}

/* === Services === */
.services { padding: 80px 0; }
.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}
.service-card {
    padding: 32px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: box-shadow var(--transition), transform var(--transition);
}
.service-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}
.service-card__icon { font-size: 2.2rem; margin-bottom: 16px; }
.service-card h3 {
    font-size: 1.15rem; color: var(--color-dark); margin-bottom: 10px; font-weight: 700;
}
.service-card p { color: #64748b; font-size: .95rem; line-height: 1.6; }

/* === Cases === */
.cases { padding: 80px 0; background: var(--color-light); }
.cases__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}
.case-card {
    background: #fff;
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: box-shadow var(--transition);
}
.case-card:hover { box-shadow: var(--shadow-lg); }
.case-card__tag {
    display: inline-block;
    padding: 4px 12px;
    background: #eff6ff;
    color: var(--color-primary);
    font-size: .8rem; font-weight: 600;
    border-radius: 6px;
    margin-bottom: 12px;
}
.case-card h3 { font-size: 1.1rem; color: var(--color-dark); margin-bottom: 10px; }
.case-card p { color: #64748b; font-size: .92rem; line-height: 1.6; }

/* === Tech === */
.tech { padding: 60px 0; }
.tech__logos {
    display: flex; flex-wrap: wrap; gap: 12px; justify-content: center;
}
.tech__logos span {
    padding: 8px 20px;
    background: var(--color-light);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: .9rem; font-weight: 500;
    color: var(--color-text);
}

/* === About === */
.about { padding: 80px 0; background: var(--color-light); }
.about__content { max-width: 720px; margin: 0 auto; text-align: center; }
.about__content p { margin-bottom: 16px; font-size: 1.05rem; }
.about__stats {
    display: flex; gap: 40px; justify-content: center;
    margin-top: 40px; flex-wrap: wrap;
}
.stat { text-align: center; }
.stat__num {
    display: block; font-size: 2.5rem; font-weight: 800;
    color: var(--color-primary); line-height: 1.1;
}
.stat__label { font-size: .9rem; color: #64748b; }

/* === Contact === */
.contact { padding: 80px 0; }
.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}
.contact__item { margin-bottom: 24px; }
.contact__item strong { display: block; color: var(--color-dark); margin-bottom: 4px; font-size: .9rem; }
.contact__item a, .contact__item span { font-size: 1.05rem; }

.contact__form { display: flex; flex-direction: column; gap: 16px; }
.contact__form input,
.contact__form textarea {
    padding: 14px 18px;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--transition);
    outline: none;
    background: #fff;
}
.contact__form input:focus,
.contact__form textarea:focus { border-color: var(--color-primary); }
.contact__form textarea { resize: vertical; }

/* === Payment === */
.payment-info { padding: 80px 0; background: var(--color-light); }
.payment__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    max-width: 900px;
    margin: 0 auto;
}
.payment__content h3 {
    font-size: 1.1rem; color: var(--color-dark); margin-bottom: 16px;
}
.payment__content ul {
    list-style: none; padding: 0;
}
.payment__content li {
    padding: 8px 0 8px 24px;
    position: relative;
    font-size: .95rem;
    color: var(--color-text);
}
.payment__content li::before {
    content: '';
    position: absolute; left: 0; top: 16px;
    width: 8px; height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
}
.payment__content p { margin-top: 16px; font-size: .9rem; color: #64748b; }

/* === Requisites === */
.requisites { padding: 120px 0 80px; }
.requisites h1 {
    font-size: 2rem; color: var(--color-dark); margin-bottom: 40px; text-align: center;
}
.requisites__card {
    max-width: 700px; margin: 0 auto;
    background: var(--color-light);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
}
.requisites__table { width: 100%; border-collapse: collapse; }
.requisites__table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border);
    font-size: .95rem;
    vertical-align: top;
}
.requisites__table td:first-child {
    width: 180px; color: #64748b; font-weight: 500;
}
.requisites__note {
    text-align: center; margin-top: 24px;
    font-size: .85rem; color: #94a3b8;
}

/* === Footer === */
.footer {
    padding: 48px 0 32px;
    background: var(--color-dark);
    color: #94a3b8;
}
.footer__grid {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 40px;
    flex-wrap: wrap;
}
.footer__brand .logo { color: #fff; margin-bottom: 8px; }
.footer__brand .logo__icon { background: var(--color-accent); }
.footer__brand p { font-size: .9rem; }
.footer__links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer__links a { color: #94a3b8; font-size: .9rem; }
.footer__links a:hover { color: #fff; }
.footer__legal { text-align: right; }
.footer__legal p { font-size: .85rem; line-height: 1.6; }
.footer__payments { display: flex; gap: 8px; justify-content: flex-end; align-items: center; margin: 8px 0; }
.footer__payments img { height: 24px; width: auto; }

.payment__security { margin-top: 24px; padding: 20px; background: #f0fdf4; border-radius: 8px; border-left: 4px solid #22c55e; }
.payment__security h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--color-dark); }
.payment__security p { font-size: .95rem; color: var(--color-text); line-height: 1.6; }

/* === Legal Pages === */
.legal-page { padding: 120px 0 80px; }
.legal-page h1 {
    font-size: 2rem; color: var(--color-dark); margin-bottom: 8px;
}
.legal-page__date { color: #94a3b8; font-size: .9rem; margin-bottom: 40px; }
.legal-page h2 {
    font-size: 1.15rem; color: var(--color-dark); margin: 32px 0 12px; font-weight: 700;
}
.legal-page p { margin-bottom: 12px; font-size: .95rem; line-height: 1.7; }
.legal-page ul { margin: 0 0 16px 24px; }
.legal-page li { font-size: .95rem; line-height: 1.7; margin-bottom: 4px; }

/* === Cookie Banner === */
.cookie-banner {
    position: fixed; bottom: 0; left: 0; right: 0;
    background: var(--color-dark);
    color: #cbd5e1;
    padding: 16px 20px;
    display: flex; align-items: center; justify-content: center;
    gap: 16px; flex-wrap: wrap;
    z-index: 200;
    font-size: .9rem;
    box-shadow: 0 -4px 20px rgba(0,0,0,.15);
}
.cookie-banner a { color: #60a5fa; }
.cookie-banner__btn {
    padding: 8px 24px;
    background: var(--color-primary);
    color: #fff;
    border: none; border-radius: 8px;
    cursor: pointer; font-size: .9rem; font-weight: 600;
    transition: background var(--transition);
}
.cookie-banner__btn:hover { background: var(--color-primary-dark); }
.cookie-banner.hidden { display: none; }

/* === Form Consent === */
.form-consent {
    display: flex; align-items: flex-start; gap: 8px;
    font-size: .82rem; color: #64748b; line-height: 1.4;
}
.form-consent input[type="checkbox"] {
    margin-top: 2px; flex-shrink: 0;
    width: 16px; height: 16px; cursor: pointer;
}
.form-consent a { color: var(--color-primary); }

/* === Mobile === */
@media (max-width: 768px) {
    .nav { display: none; }
    .nav.active {
        display: flex; flex-direction: column;
        position: absolute; top: 64px; left: 0; right: 0;
        background: #fff; padding: 20px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
        gap: 16px;
    }
    .nav-toggle { display: flex; }

    .hero { padding: 120px 0 60px; }
    .hero h1 { font-size: 1.8rem; }

    .services__grid,
    .cases__grid { grid-template-columns: 1fr; }

    .contact__grid,
    .payment__content { grid-template-columns: 1fr; gap: 32px; }

    .footer__grid { flex-direction: column; gap: 24px; }
    .footer__legal { text-align: left; }

    .about__stats { gap: 24px; }

    .requisites__table td:first-child { width: 120px; }
}

@media (max-width: 480px) {
    .hero__actions { flex-direction: column; align-items: center; }
    .btn { width: 100%; max-width: 300px; }
    .requisites__card { padding: 20px; }
}