/* ===== Сброс и переменные ===== */
:root {
    --bg: #fff;
    --fg: #0b0b0b;
    --muted: #6b7280;
    --line: #e5e7eb;
    --soft: #f7f7f8;
}

* {
    box-sizing: border-box
}

html, body {
    margin: 0
}

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

img {
    max-width: 100%;
    display: block
}

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

/* ===== ЕДИНЫЙ КОНТЕЙНЕР ===== */
.container {
    max-width: 1180px;
    margin-inline: auto;
    padding: 0 30px;
}

/* ===== Утилиты ===== */
.stack {
    display: flex;
    flex-direction: column;
    gap: 14px
}

.row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap
}

.btn {
    border: 1px solid var(--fg);
    padding: 10px 16px;
    border-radius: 6px;
    font-weight: 600;
    transition: .2s
}

.btn:hover {
    transform: translateY(-1px)
}

.btn-primary {
    background: var(--fg);
    color: #fff;
    border-color: var(--fg)
}

.btn-ghost {
    background: transparent
}

.btn-lg {
    padding: 14px 20px;
    border-radius: 12px
}

.muted {
    color: var(--muted)
}

/* ===== Шапка ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, .85);
    backdrop-filter: saturate(180%) blur(10px);
    border-bottom: 1px solid var(--line)
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 24px;
}

.brand .logo {
    width: 28px;
    height: 28px
}

.nav {
    display: flex;
    gap: 20px;
    align-items: center
}

.burger {
    display: none;
    background: none;
    border: 0;
    font-size: 24px
}

/* ===== Hero ===== */
.hero {
    padding-block: 72px 32px
}

.hero-grid {
    display: grid;
    grid-template-columns:1.1fr .9fr;
    gap: 48px;
    align-items: center
}

.lead {
    font-size: 18px;
    color: var(--muted)
}

.bullets {
    padding-left: 18px;
    color: var(--muted)
}

.hero-card {
    border: 1px solid var(--line);
    padding: 24px;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 1px 0 rgba(0, 0, 0, .03)
}

/* ===== Метрики ===== */
.metrics {
    border-block: 1px solid var(--line);
    padding-block: 24px;
    margin-block: 8px
}

.metrics-grid {
    display: grid;
    grid-template-columns:repeat(4, 1fr);
    gap: 12px
}

.metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px
}

.num {
    font-size: 36px;
    font-weight: 700
}

.cap {
    color: var(--muted);
    font-size: 14px
}

/* ===== Секции ===== */
.section {
    padding-block: 64px
}

.section-alt {
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 32px; /* внутри «воздух», чтобы текст не лип к границе */
}

.two-col {
    display: grid;
    grid-template-columns:1fr 1fr;
    gap: 32px
}

.cards {
    display: grid;
    grid-template-columns:repeat(3, 1fr);
    gap: 24px
}

.cards-3 {
    grid-template-columns:repeat(3, 1fr)
}

.card {
    border: 1px solid var(--line);
    padding: 24px;
    border-radius: 16px;
    background: #fff
}

.list {
    padding-left: 18px
}

.list-check li {
    list-style: '✓ ';
    margin-left: 0
}

.steps {
    display: grid;
    grid-template-columns:repeat(4, 1fr);
    gap: 18px;
    margin-top: 8px
}

.step {
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 20px;
    background: #fff
}

.step-num {
    display: inline-flex;
    width: 28px;
    height: 28px;
    border: 1px solid var(--fg);
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    font-weight: 600
}

.timeline {
    display: grid;
    grid-template-columns:repeat(4, 1fr);
    gap: 18px
}

.tl-item {
    border: 1px solid var(--line);
    border-left: 3px solid var(--fg);
    border-radius: 10px;
    padding: 14px;
    background: #fff
}

.quotes {
    display: grid;
    grid-template-columns:repeat(3, 1fr);
    gap: 20px
}

blockquotes {
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 18px;
    background: #fff
}

blockquotes span {
    display: block;
    color: var(--muted);
    font-size: 14px;
    margin-top: 6px
}

/* ===== Красивый FAQ ===== */
.faq {
    display: grid;
    gap: 12px;
    margin-top: 12px
}

.faq details {
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 16px 18px;
    background: #fff;
    box-shadow: 0 1px 0 rgba(0, 0, 0, .02);
    transition: border-color .2s, box-shadow .2s, background .2s;
}

.faq details:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, .04)
}

.faq summary {
    list-style: none;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.faq summary::-webkit-details-marker {
    display: none
}

.faq summary::after {
    content: "▾";
    font-size: 16px;
    line-height: 1;
    transform: rotate(0deg);
    transition: transform .2s;
    opacity: .7;
}

.faq details[open] summary::after {
    transform: rotate(180deg)
}

.faq p {
    margin: 12px 0 0 0;
    color: var(--muted)
}

/* ===== CTA и футер ===== */
.cta {
    padding-block: 56px;
    border-top: 1px solid var(--line)
}

.cta-inner {
    align-items: center;
    text-align: center
}

.site-footer {
    border-top: 1px solid var(--line);
    padding-block: 32px
}

.footer-grid {
    display: flex;
    flex-direction: column;
    gap: 16px
}

.brand--footer .logo {
    width: 24px;
    height: 24px
}

.footer-cols {
    display: grid;
    grid-template-columns:2fr 1fr 1.2fr;
    gap: 24px
}

.contacts {
    list-style: none;
    padding-left: 0
}

.tiny {
    color: var(--muted);
    font-size: 12px
}

/* ===== Адаптив ===== */
@media (max-width: 1000px) {
    .hero-grid {
        grid-template-columns:1fr
    }

    .two-col {
        grid-template-columns:1fr
    }

    .cards, .cards-3 {
        grid-template-columns:1fr 1fr
    }

    .steps {
        grid-template-columns:1fr 1fr
    }

    .timeline {
        grid-template-columns:1fr 1fr
    }

    .quotes {
        grid-template-columns:1fr
    }

    .footer-cols {
        grid-template-columns:1fr
    }
}

@media (max-width: 720px) {
    .metrics-grid {
        grid-template-columns:1fr 1fr
    }

    .cards, .cards-3, .steps, .timeline {
        grid-template-columns:1fr
    }

    .nav {
        display: none
    }

    .burger {
        display: block
    }
}