/* Reset */
* {
    box-sizing: border-box;
}

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

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

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

/* Theme */
:root {
    --bg: #0f172a;
    --surface: #111827;
    --muted: #94a3b8;
    --text: #e5e7eb;
    --primary: #eab308;
    --primary-600: #ca8a04;
    --border: #1f2937;
    --radius: 12px;
    --container: 1200px;
}

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

.container {
    width: min(100% - 32px, var(--container));
    margin-inline: auto;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(17, 24, 39, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
}

.logo {
    font-weight: 700;
    letter-spacing: 0.3px;
}

.nav {
    display: flex;
    gap: 18px;
    align-items: center;
}

.nav a {
    color: var(--muted);
    font-weight: 500;
}

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

.btn {
    display: inline-block;
    background: var(--primary);
    color: #111;
    padding: 10px 16px;
    border-radius: 999px;
    font-weight: 700;
}

.btn:hover {
    background: var(--primary-600);
}

.btn-sm {
    padding: 6px 10px;
    font-size: 14px;
}

.nav-toggle {
    display: none;
}

/* Hero */
.hero {
    position: relative;
    min-height: 70vh;
    display: grid;
    place-items: center;
}

.hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.4);
}

.overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(1000px 500px at 20% 10%, rgba(234, 179, 8, 0.2), transparent), linear-gradient(0deg, rgba(17, 24, 39, 0.6), rgba(17, 24, 39, 0.6));
}

.hero-inner {
    position: relative;
    text-align: center;
    padding: 120px 0;
}

.hero h1 {
    font-size: clamp(32px, 6vw, 56px);
    margin: 0 0 10px;
}

.hero .subtitle {
    color: var(--muted);
    margin-bottom: 22px;
}

/* Sections */
.section {
    padding: 72px 0;
    border-top: 1px solid var(--border);
}

.section.alt {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.0));
}

.section-title {
    font-size: 28px;
    margin: 0 0 24px;
}

.cards {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    display: grid;
    gap: 8px;
}

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

.card p {
    margin: 0;
    color: var(--muted);
}

.grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.project {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: #0b1220;
}

.project img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    filter: saturate(1.05) contrast(1.05);
}

.project .project-info {
    position: absolute;
    inset: auto 0 0 0;
    padding: 14px;
    background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.7));
}

.project .title {
    font-weight: 600;
    margin: 0 0 4px;
}

.project .desc {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.about {
    display: grid;
    gap: 24px;
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
}

.about-media img {
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 16px;
    padding: 0;
    list-style: none;
}

.stat {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px;
    text-align: center;
}

.stat .num {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
}

.stat .label {
    color: var(--muted);
    font-size: 13px;
}

.contact-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.contact-info {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
}

.map iframe {
    width: 100%;
    height: 340px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: #0b1220;
}

.social {
    display: flex;
    gap: 10px;
    margin-top: 8px;
}

.social a {
    color: var(--muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--surface);
    transition: all .2s ease;
}

.social a:hover {
    color: var(--primary);
    border-color: var(--primary);
    transform: translateY(-1px);
}

.social svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 18px 0;
    color: var(--muted);
    background: #0b1220;
}

/* Responsive */
@media (max-width: 900px) {
    .about {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 720px) {
    .nav-toggle {
        display: inline-flex;
        background: transparent;
        border: 1px solid var(--border);
        color: var(--text);
        padding: 6px 10px;
        border-radius: 8px;
    }

    .nav {
        position: absolute;
        right: 16px;
        top: 56px;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 10px;
        display: none;
        flex-direction: column;
        padding: 8px;
        width: 220px;
    }

    .nav.open {
        display: flex;
    }
}