:root {
    --primary: #6C3CE1;
    --primary-dark: #5429C4;
    --accent: #FF6B35;
    --text: #1A1A2E;
    --text-muted: #6B7280;
    --bg: #FFFFFF;
    --bg-gray: #F8F7FF;
    --border: #E5E7EB;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(108,60,225,0.10);
    --transition: 0.2s ease;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    font-size: 16px;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Кнопки ── */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    background: var(--primary);
    color: #fff;
}
.btn:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn--lg { padding: 16px 36px; font-size: 17px; border-radius: 10px; }
.btn--sm { padding: 8px 20px; font-size: 14px; }
.btn--primary { background: var(--primary); color: #fff; }
.btn--primary:hover { background: var(--primary-dark); }
.btn--outline {
    background: transparent;
    border-color: var(--primary);
    color: var(--primary);
}
.btn--outline:hover { background: var(--primary); color: #fff; }
.btn--full { width: 100%; text-align: center; display: block; }

/* ── Badge ── */
.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(108,60,225,0.12);
    color: var(--primary);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

/* ── Навигация ── */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}
.nav__inner {
    display: flex;
    align-items: center;
    height: 64px;
    gap: 32px;
}
.nav__logo {
    font-weight: 800;
    font-size: 20px;
    color: var(--primary);
    flex-shrink: 0;
}
.nav__links {
    display: flex;
    gap: 28px;
    margin-left: auto;
}
.nav__links a {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-muted);
    transition: color var(--transition);
}
.nav__links a:hover { color: var(--primary); }
.nav .btn { margin-left: 16px; }
.nav__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    margin-left: auto;
    padding: 4px;
}
.nav__burger span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; }

/* ── Flash-сообщения ── */
.flash-messages { position: fixed; top: 72px; right: 16px; z-index: 999; width: 320px; }
.flash {
    padding: 14px 18px;
    border-radius: 8px;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: var(--shadow);
}
.flash--success { background: #D1FAE5; color: #065F46; }
.flash--error { background: #FEE2E2; color: #991B1B; }

/* ── Секции ── */
.section { padding: 96px 0; }
.section--gray { background: var(--bg-gray); }
.section__head {
    text-align: center;
    margin-bottom: 56px;
}
.section__head h2 {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    margin-bottom: 12px;
}
.section__head p { font-size: 18px; color: var(--text-muted); }

/* ── Hero ── */
.hero {
    padding: 160px 0 96px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #FAF8FF 0%, #EEE8FF 100%);
}
.hero__bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 60% at 70% 50%, rgba(108,60,225,0.10) 0%, transparent 70%);
    pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero__content { max-width: 680px; }
.hero__title {
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}
.hero__subtitle {
    font-size: 19px;
    color: var(--text-muted);
    margin-bottom: 36px;
    max-width: 560px;
    line-height: 1.7;
}
.hero__stats {
    display: flex;
    gap: 48px;
    margin-top: 56px;
    flex-wrap: wrap;
}
.stat__value { display: block; font-size: 36px; font-weight: 800; color: var(--primary); }
.stat__label { font-size: 14px; color: var(--text-muted); margin-top: 4px; }

/* ── Услуги ── */
.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}
.service-card {
    padding: 32px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    transition: var(--transition);
}
.service-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: rgba(108,60,225,0.3); }
.service-card__icon { font-size: 32px; margin-bottom: 16px; }
.service-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.service-card p { color: var(--text-muted); font-size: 15px; line-height: 1.6; }

/* ── Тарифы ── */
.pricing__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    align-items: start;
}
.plan {
    padding: 36px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.plan--highlight {
    border-color: var(--primary);
    box-shadow: 0 8px 40px rgba(108,60,225,0.18);
    transform: scale(1.02);
}
.plan__badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: #fff;
    padding: 4px 16px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}
.plan__name { font-size: 20px; font-weight: 700; }
.plan__price { display: flex; align-items: baseline; gap: 6px; }
.plan__amount { font-size: 40px; font-weight: 800; color: var(--primary); }
.plan__currency { font-size: 15px; color: var(--text-muted); }
.plan__features { display: flex; flex-direction: column; gap: 10px; flex: 1; }
.plan__features li {
    font-size: 15px;
    color: var(--text-muted);
    padding-left: 20px;
    position: relative;
}
.plan__features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* ── Отзывы ── */
.reviews__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}
.review-card {
    padding: 32px;
    border-radius: var(--radius);
    background: var(--bg);
    border: 1px solid var(--border);
}
.review-card__stars { color: #F59E0B; font-size: 18px; margin-bottom: 16px; letter-spacing: 2px; }
.review-card__text { font-size: 16px; line-height: 1.7; color: var(--text-muted); margin-bottom: 24px; }
.review-card__author { display: flex; align-items: center; gap: 12px; }
.review-card__avatar {
    width: 44px; height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 18px;
    flex-shrink: 0;
}
.review-card__author strong { display: block; font-size: 15px; }
.review-card__author span { font-size: 13px; color: var(--text-muted); }

/* ── Контакты ── */
.contacts__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}
.contacts__info { display: flex; flex-direction: column; gap: 20px; }
.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 16px;
    transition: color var(--transition);
}
.contact-item:hover { color: var(--primary); }
.contact-item__icon { font-size: 24px; flex-shrink: 0; }
.contact-form {
    background: var(--bg);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.contact-form h3 { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 15px;
    color: var(--text);
    transition: border-color var(--transition);
    background: var(--bg);
    resize: none;
}
.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary);
}
.contact-form__policy { font-size: 12px; color: var(--text-muted); text-align: center; line-height: 1.5; }

/* ── Футер ── */
.footer { background: var(--text); color: rgba(255,255,255,0.8); padding: 64px 0 0; }
.footer__inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
}
.footer__logo { display: block; font-size: 22px; font-weight: 800; color: #fff; margin-bottom: 12px; }
.footer__brand p { font-size: 15px; line-height: 1.6; margin-bottom: 20px; }
.footer__socials { display: flex; gap: 12px; }
.social-link {
    padding: 8px 16px;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition);
}
.social-link:hover { background: rgba(255,255,255,0.1); }
.footer__nav { display: flex; flex-direction: column; gap: 12px; }
.footer__nav h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.footer__nav a { font-size: 14px; transition: color var(--transition); }
.footer__nav a:hover { color: #fff; }
.footer__bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    font-size: 14px;
    color: rgba(255,255,255,0.4);
}

/* ── Адаптивность ── */
@media (max-width: 768px) {
    .nav__links, .nav .btn { display: none; }
    .nav__burger { display: flex; }
    .nav__inner { gap: 0; }
    .nav__inner .btn { display: none; }

    .nav__links.is-open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 64px; left: 0; right: 0;
        background: #fff;
        padding: 20px 24px 32px;
        border-bottom: 1px solid var(--border);
        gap: 16px;
    }

    .hero { padding: 100px 0 64px; }
    .hero__stats { gap: 28px; }
    .stat__value { font-size: 28px; }

    .section { padding: 64px 0; }

    .pricing__grid { grid-template-columns: 1fr; }
    .plan--highlight { transform: none; }

    .contacts__inner { grid-template-columns: 1fr; }
    .contact-form { padding: 28px 20px; }

    .footer__inner { grid-template-columns: 1fr; gap: 32px; }
}