:root {
    --bg-main: #ffffff;
    --bg-muted: #f5f7fb;
    --accent: #2b6cb0;
    --accent-dark: #254b87;
    --text-main: #1a202c;
    --text-muted: #4a5568;
    --border-soft: #e2e8f0;
    --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.08);
    --radius-lg: 12px;
    --radius-md: 8px;
    --radius-sm: 4px;
}

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

html, body {
    margin: 0;
    padding: 0;
}

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

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Header */

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background-color: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border-soft);
    backdrop-filter: blur(8px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
}

.logo {
    font-weight: 700;
    font-size: 20px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.nav {
    display: flex;
    gap: 16px;
    font-size: 14px;
}

.nav a {
    color: var(--text-muted);
    padding: 6px 8px;
    border-radius: var(--radius-sm);
}

.nav a:hover {
    background-color: var(--bg-muted);
    text-decoration: none;
}

/* Hero */

.hero {
    background: linear-gradient(135deg, #ebf4ff, #fefcbf);
    padding: 56px 0 64px;
}

.hero-inner {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-text {
    max-width: 700px;
    text-align: left;
}

.hero h1 {
    font-size: 32px;
    line-height: 1.25;
    margin: 0 0 16px;
}

.hero p {
    margin: 0 0 24px;
    color: var(--text-muted);
    font-size: 16px;
}

.btn-primary {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 999px;
    background-color: var(--accent);
    color: #ffffff;
    font-weight: 600;
    font-size: 14px;
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-primary:hover {
    background-color: var(--accent-dark);
    text-decoration: none;
}

/* Sections */

.section {
    padding: 56px 0;
}

.section-muted {
    background-color: var(--bg-muted);
}

.section h2 {
    margin: 0 0 24px;
    font-size: 24px;
}

/* Cards */

.cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.card {
    background-color: #ffffff;
    border-radius: var(--radius-lg);
    padding: 18px 18px 16px;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(226, 232, 240, 0.7);
}

.card h3 {
    margin: 0 0 8px;
    font-size: 18px;
}

.card p {
    margin: 0 0 12px;
    font-size: 14px;
    color: var(--text-muted);
}

.card-meta {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-dark);
}

/* Steps */

.steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}

.step {
    background-color: #ffffff;
    border-radius: var(--radius-lg);
    padding: 18px;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(226, 232, 240, 0.7);
}

.step-number {
    width: 32px;
    height: 32px;
    border-radius: 999px;
    background-color: var(--accent);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 14px;
}

.step h3 {
    margin: 0 0 6px;
    font-size: 16px;
}

.step p {
    margin: 0;
    font-size: 14px;
    color: var(--text-muted);
}

/* Benefits */

.benefits {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}

.benefit {
    background-color: #ffffff;
    border-radius: var(--radius-lg);
    padding: 18px;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(226, 232, 240, 0.7);
}

.benefit h3 {
    margin: 0 0 8px;
    font-size: 16px;
}

.benefit p {
    margin: 0;
    font-size: 14px;
    color: var(--text-muted);
}

/* Reviews */

.reviews {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.review {
    background-color: #ffffff;
    border-radius: var(--radius-lg);
    padding: 18px;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(226, 232, 240, 0.7);
    font-size: 14px;
}

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

.review-author {
    font-weight: 600;
    font-size: 13px;
}

/* Contacts */

.contacts-inner {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 24px;
    align-items: flex-start;
}

.contacts-info p {
    margin-top: 0;
    color: var(--text-muted);
}

.contacts-list {
    list-style: none;
    padding: 0;
    margin: 16px 0 0;
    font-size: 14px;
}

.contacts-list li {
    margin-bottom: 8px;
}

.contacts-form h3 {
    margin-top: 0;
}

.contacts-form form {
    background-color: #ffffff;
    border-radius: var(--radius-lg);
    padding: 18px;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(226, 232, 240, 0.7);
    font-size: 14px;
}

.contacts-form label {
    display: block;
    margin-bottom: 10px;
    font-size: 13px;
}

.contacts-form input,
.contacts-form textarea {
    width: 100%;
    padding: 8px 10px;
    margin-top: 4px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-soft);
    font-family: inherit;
    font-size: 14px;
}

.contacts-form input:focus,
.contacts-form textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.contacts-form button {
    margin-top: 8px;
    width: 100%;
}

.form-note {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-muted);
}

/* Footer */

.site-footer {
    border-top: 1px solid var(--border-soft);
    padding: 16px 0;
    background-color: #ffffff;
    font-size: 13px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.footer-links {
    display: flex;
    gap: 12px;
}

/* Responsive */

@media (max-width: 960px) {
    .cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .steps,
    .benefits,
    .reviews {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .contacts-inner {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .header-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    .nav {
        flex-wrap: wrap;
        gap: 8px;
    }
    .hero {
        padding: 40px 0 48px;
    }
    .hero h1 {
        font-size: 24px;
    }
    .cards,
    .steps,
    .benefits,
    .reviews {
        grid-template-columns: 1fr;
    }
}