@import url('https://fonts.googleapis.com/css2?family=Unbounded:wght@400;700;900&family=Inter:wght@300;400;600&display=swap');

:root {
    --bg-dark: #020617;
    --accent-blue: #22d3ee;
    --accent-orange: #f59e0b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --glass: rgba(15, 23, 42, 0.8);
    --border-blue: rgba(34, 211, 238, 0.2);
    --glow-blue: 0 0 20px rgba(34, 211, 238, 0.3);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
    /* Neural Grid Background */
    background-image: 
        linear-gradient(var(--border-blue) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-blue) 1px, transparent 1px);
    background-size: 50px 50px;
    background-position: center;
}

h1, h2, h3, .title-font {
    font-family: 'Unbounded', cursive;
    text-transform: uppercase;
    letter-spacing: -0.05em;
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 2rem;
    background: radial-gradient(circle at 20% 30%, rgba(34, 211, 238, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(245, 158, 11, 0.05) 0%, transparent 50%);
}

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
    filter: brightness(0.4) grayscale(0.5);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.phd-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--accent-orange);
    color: var(--bg-dark);
    font-family: 'Unbounded';
    font-weight: 700;
    font-size: 0.8rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    box-shadow: 0 0 15px rgba(245, 158, 11, 0.4);
}

.category-title {
    font-size: 1.25rem;
    color: var(--accent-blue);
    border-left: 4px solid var(--accent-blue);
    padding-left: 1rem;
    margin: 4rem 0 2rem;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background: var(--glass);
    border: 1px solid var(--border-blue);
    padding: 2rem;
    border-radius: 1px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 2px;
    height: 0;
    background: var(--accent-blue);
    transition: height 0.4s;
}

.service-card:hover {
    border-color: var(--accent-blue);
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--glow-blue);
}

.service-card:hover::before {
    height: 100%;
}

.service-card i {
    font-size: 2rem;
    color: var(--accent-blue);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: #fff;
}

.service-card ul {
    list-style: none;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.service-card li {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: flex-start;
}

.service-card li::before {
    content: '→';
    color: var(--accent-blue);
    margin-right: 0.5rem;
    font-weight: bold;
}

.floating-nav {
    position: fixed;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    z-index: 1000;
}

.nav-dot {
    width: 12px;
    height: 12px;
    border: 2px solid var(--accent-blue);
    border-radius: 50%;
    cursor: pointer;
    transition: 0.3s;
}

.nav-dot:hover, .nav-dot.active {
    background: var(--accent-blue);
    box-shadow: 0 0 10px var(--accent-blue);
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .service-grid { grid-template-columns: 1fr; }
}