@import url('https://fonts.googleapis.com/css2?family=Ubuntu:wght@400;500;700&display=swap');

:root {
    --primary: #00d1ff;
    --primary-gradient: linear-gradient(135deg, #00d1ff, #007BFF);
    --secondary: #007BFF;
    --background: #121212;
    --text-color: #e0e0e0;

    --bg-900: #0f1720;
    --bg-800: #0f1728;
    --glass: rgba(255,255,255, 0.06);
    --glass-strong: rgba(255,255,255, 0.08);
    --accent: #4dd0e1;
    --muted: #9aa4b2;
    --radius: 12px;
    --container: 1100px;
}

* {
    box-sizing: border-box;
}
html, body {
    height: 100%;
}
body {
    margin: 0;
    background: linear-gradient(180deg, var(--bg-900), var(--bg-800));
    color: #e6eef6;
    font-family: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

#bg-root {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 28px;
    position: relative;
    z-index: 2;
}
.site-header {
    padding: 20px 0;
    backdrop-filter: blur(6px) saturate(120%);
    background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(0,0,0,0.2));
    border-bottom: 1px solid rgba(255,255,255,0.03);
    position: relative;
    z-index: 2;
}
.site-header h1 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent);
}

.nav-list {
    list-style: none;
    display: flex;
    gap: 18px;
    padding: 0;
    margin: 8px 0 0;
}
.nav-list a {
    color: var(--muted);
    text-decoration: none;
    padding: 6px 10px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all .18s ease;
}
.nav-list a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.03);
}
.nav-list a.active {
    background: linear-gradient(90deg, rgba(77,208,225,0.12), rgba(77,208,225,0.06));
}

.hero {
    margin: 36px 0;
    padding: 36px;
    border-radius: var(--radius);
    overflow: hidden;
}
.hero-inner {
    max-width: 820px;
    margin: 0 auto;
    text-align: center;
}
.hero h2 {
    margin: 0 0 12px;
    font-size: 2rem;
    color: #eaffff;
    letter-spacing: -0.02em;
}
.hero p {
    margin: 0;
    color: var(--muted);
    font-size: 1.05rem;
}

.cta {
    display: inline-block;
    margin-top: 18px;
    background: linear-gradient(90deg, var(--accent), #2bb7d0);
    color: #062126;
    padding: 10px 18px;
    border-radius: 10px;
    font-weight: 700;
    text-decoration: none;
    box-shadow: 0 6px 20px rgba(44,182,196,0.12);
    transition: transform .18s ease, box-shadow .18s ease;
}
.cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(44,182,196,0.14);
}

.projects h3 {
    color: var(--accent);
    margin: 10px 0 18px;
    text-align: center;
}
.news h3 {
    color: var(--accent);
    margin: 10px 0 18px;
    text-align: center;
}
.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.card {
    padding: 18px;
    border-radius: 14px;
    transition: transform .18s ease, box-shadow .18s ease;
    background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
    border: 1px solid rgba(255,255,255,0.03);
}
.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(3,10,18,0.6);
}
.card h4 {
    margin: 12px 0 6px;
    color: #fff;
    font-size: 0.95rem;
}
.card p {
    margin: 0;
    color: var(--muted);
    font-size: 0.95rem;
}

.card-media {
    height: 120px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(77,208,225,0.12), rgba(59,130,246,0.08));
    margin-bottom: 12px;
}

.glass {
    background: var(--glass);
    backdrop-filter: blur(6px) saturate(130%);
    -webkit-backdrop-filter: blur(6px) saturate(130%);
    border: 1px solid rgba(255,255,255,0.04);
}

.site-footer {
    padding: 28px 0;
    color: var(--muted);
    text-align: center;
    position: relative;
    z-index: 2;
}

@media (max-width: 900px) {
    .grid { grid-template-columns: repeat(2, 1fr); }
    .hero h2 { font-size: 1.6rem; }
}

@media (max-width: 600px) {
    .nav-list { gap: 10px; flex-wrap: wrap; justify-content: center; }
    .grid { grid-template-columns: 1fr; }
    .container { padding: 18px; }
}

@media (prefers-reduced-motion) {
    .card, .cta { transition: none; }
}