:root {
    --background: #ffffff;
    --background-muted: #f5f7fb;
    --text: #172033;
    --text-muted: #5d6779;
    --primary: #0b5fff;
    --primary-dark: #0848c7;
    --border: #dfe5ef;
    --shadow: 0 20px 50px rgba(23, 32, 51, 0.08);
    --container: 1120px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body {
    margin: 0;
    background: var(--background);
    color: var(--text);
    font-family:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Arial,
        sans-serif;
    line-height: 1.65;
}

a {
    color: inherit;
}

.container {
    width: min(calc(100% - 40px), var(--container));
    margin-inline: auto;
}

.narrow {
    max-width: 760px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
}

.header-inner {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--text);
    font-weight: 700;
    text-decoration: none;
}

.logo-mark {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--primary);
    color: #ffffff;
    font-size: 14px;
    letter-spacing: 0.04em;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.main-nav a {
    color: var(--text-muted);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
}

.main-nav a:hover,
.main-nav a:focus-visible {
    color: var(--primary);
}

.hero {
    padding: 120px 0 110px;
    background:
        radial-gradient(circle at top right,
            rgba(46, 197, 255, 0.18),
            transparent 38%),
        linear-gradient(180deg, #ffffff 0%, #f7f9fd 100%);
}

.hero-content {
    max-width: 850px;
}

.eyebrow,
.section-label {
    margin: 0 0 14px;
    color: var(--primary);
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    max-width: 820px;
    margin-bottom: 24px;
    font-size: clamp(44px, 7vw, 76px);
    line-height: 1.05;
    letter-spacing: -0.045em;
}

h2 {
    margin-bottom: 22px;
    font-size: clamp(32px, 5vw, 48px);
    line-height: 1.15;
    letter-spacing: -0.03em;
}

h3 {
    margin-bottom: 12px;
    font-size: 21px;
    line-height: 1.3;
}

.hero-text {
    max-width: 680px;
    margin-bottom: 36px;
    color: var(--text-muted);
    font-size: clamp(18px, 2.5vw, 22px);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.button {
    min-height: 50px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 22px;
    border: 1px solid transparent;
    border-radius: 10px;
    font-weight: 700;
    text-decoration: none;
    transition:
        transform 160ms ease,
        background-color 160ms ease,
        border-color 160ms ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button-primary {
    background: var(--primary);
    color: #ffffff;
}

.button-primary:hover {
    background: var(--primary-dark);
}

.button-secondary {
    background: #ffffff;
    border-color: var(--border);
    color: var(--text);
}

.button-secondary:hover {
    border-color: var(--primary);
}

.section {
    padding: 96px 0;
}

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

.section p {
    color: var(--text-muted);
    font-size: 18px;
}

.services-grid {
    margin-top: 42px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.service-card {
    min-height: 220px;
    padding: 28px;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.service-card p {
    margin-bottom: 0;
    font-size: 16px;
}

.contact-block {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    align-items: center;
    gap: 50px;
}

.contact-link {
    padding: 24px 28px;
    border: 1px solid var(--border);
    border-radius: 14px;
    color: var(--primary);
    font-size: clamp(18px, 3vw, 24px);
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    overflow-wrap: anywhere;
}

.contact-link:hover {
    border-color: var(--primary);
}

.site-footer {
    padding: 30px 0;
    background: #111827;
    color: #cbd5e1;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.footer-inner p {
    margin: 0;
}

.footer-inner a {
    color: #ffffff;
    text-decoration: none;
}

@media (max-width: 850px) {
    .services-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .contact-block {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 620px) {
    .container {
        width: min(calc(100% - 28px), var(--container));
    }

    .header-inner {
        min-height: 64px;
    }

    .logo span:last-child {
        display: none;
    }

    .main-nav {
        gap: 16px;
    }

    .main-nav a {
        font-size: 14px;
    }

    .hero {
        padding: 82px 0 76px;
    }

    .section {
        padding: 72px 0;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-card {
        min-height: auto;
    }

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}