:root {
    --bg: oklch(0.18 0.04 250);
    --surface: oklch(0.22 0.04 250);
    --fg: oklch(0.97 0.00 0);
    --muted: oklch(0.70 0.02 250);
    --border: oklch(0.35 0.03 250);
    --accent: oklch(0.55 0.12 250);
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--fg);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* Typography */
h1,
h2,
h3 {
    font-family: var(--font-display);
    font-weight: 600;
}

h1 {
    font-size: clamp(36px, 5vw, 56px);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(28px, 3.5vw, 40px);
    line-height: 1.15;
    letter-spacing: -0.015em;
}

h3 {
    font-size: 20px;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

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

section {
    padding: 100px 0;
}

/* Focus styles */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 2px;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 20px 0;
    background: oklch(0.18 0.04 250 / 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid oklch(1 0 0 / 0.05);
}

.nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo img {
    height: 28px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.01em;
    color: var(--muted);
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--fg);
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px;
}

.hero-logo {
    width: clamp(220px, 40vw, 420px);
    margin: 0 auto 40px;
}

.hero-tagline {
    font-size: clamp(18px, 2.2vw, 22px);
    color: var(--muted);
    max-width: 55ch;
    margin: 0 auto 48px;
    line-height: 1.5;
    font-weight: 400;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--accent);
    color: var(--fg);
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.01em;
    border: none;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s;
}

.hero-cta:hover {
    background: oklch(0.50 0.12 250);
    transform: translateY(-1px);
}

.hero-cta:active {
    transform: translateY(0);
}

.hero-cta:focus-visible {
    outline: 2px solid var(--fg);
    outline-offset: 3px;
}

/* Section headers */
.section-label {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
}

.section-title {
    margin-bottom: 20px;
}

.section-desc {
    color: var(--muted);
    max-width: 55ch;
    font-size: 16px;
    line-height: 1.6;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 56px;
}

.service-card {
    padding: 36px 32px;
    background: var(--surface);
    border: 1px solid var(--border);
    transition: border-color 0.2s, transform 0.2s;
}

.service-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.service-icon {
    width: 40px;
    height: 40px;
    margin-bottom: 20px;
    color: var(--accent);
}

.service-icon svg {
    width: 100%;
    height: 100%;
    stroke-width: 1.6;
}

.service-card h3 {
    margin-bottom: 12px;
}

.service-card p {
    color: var(--muted);
    font-size: 15px;
    line-height: 1.6;
}

/* Customers — white section for contrast */
.customers {
    background: oklch(0.98 0.00 0);
    color: oklch(0.15 0.03 250);
}

.customers .section-label {
    color: var(--accent);
}

.customers .section-title {
    color: oklch(0.15 0.03 250);
}

.customers .section-desc {
    color: oklch(0.45 0.02 250);
}

.customers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
    margin-top: 56px;
}

.customer-card {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 96px;
    padding: 14px 18px;
    border-radius: 8px;
    background: oklch(0.97 0.005 250);
    border: 1px solid oklch(0.90 0.01 250);
    transition: border-color 0.2s, transform 0.2s;
}

.customer-card:hover {
    border-color: oklch(0.80 0.02 250);
    transform: translateY(-2px);
}

.customer-card img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

@media (prefers-reduced-motion: reduce) {

    .hero-cta,
    .service-card,
    .customer-card {
        transition: none;
    }
}

/* Contact */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 56px;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 28px 24px;
    border: 1px solid var(--border);
    background: var(--surface);
    transition: border-color 0.2s, transform 0.15s, background 0.2s;
    text-decoration: none;
    color: inherit;
}

.contact-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    background: oklch(0.24 0.04 250);
}

.contact-card:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.contact-card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid var(--border);
    border-radius: 50%;
}

.contact-card-icon svg {
    width: 22px;
    height: 22px;
    stroke-width: 1.6;
    color: var(--fg);
}

.contact-card-body {
    flex: 1;
    min-width: 0;
}

.contact-card-body h3 {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 2px;
}

.contact-card-body p {
    color: var(--muted);
    font-size: 14px;
}

.contact-card-arrow {
    font-size: 20px;
    color: var(--muted);
    transition: color 0.2s, transform 0.2s;
    flex-shrink: 0;
}

.contact-card:hover .contact-card-arrow {
    color: var(--accent);
    transform: translateX(4px);
}

/* Footer */
.footer {
    padding: 48px 0;
    border-top: 1px solid var(--border);
}

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

.footer-logo img {
    height: 22px;
    width: auto;
}

.footer-copy {
    font-size: 13px;
    color: var(--muted);
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    color: var(--muted);
    transition: color 0.2s, border-color 0.2s;
}

.footer-social a:hover {
    color: var(--fg);
    border-color: var(--fg);
}

.footer-social svg {
    width: 18px;
    height: 18px;
    stroke-width: 1.6;
}

/* Mobile nav */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--fg);
    cursor: pointer;
    padding: 8px;
}

.nav-toggle svg {
    width: 24px;
    height: 24px;
    stroke-width: 1.6;
}

/* Responsive */
@media (max-width: 768px) {
    section {
        padding: 72px 0;
    }

    .hero {
        min-height: 85vh;
        padding-top: 72px;
    }

    .hero-logo {
        width: clamp(160px, 55vw, 280px);
        margin-bottom: 28px;
    }

    .hero-tagline {
        font-size: 16px;
        margin-bottom: 36px;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        padding: 24px;
        gap: 20px;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

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

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

    .customers-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer .container {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}