:root {
    --bg-dark: #0a0a1a;
    --glass-bg: rgba(15, 15, 35, 0.45);
    --glass-border: rgba(0, 255, 255, 0.25);
    --neon-cyan: #00ffff;
    --neon-purple: #d600ff;
    --text-light: #e0e0ff;
    --text-muted: #b0b0ff;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    background: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
}

header {
    position: fixed;
    top: 0; width: 100%;
    padding: 20px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(15px);
    background: rgba(10, 10, 30, 0.6);
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    font-size: 2.4rem;
    font-weight: 900;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav a {
    color: var(--text-muted);
    margin: 0 20px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.4s;
    position: relative;
}

.nav a:hover, .nav a.active {
    color: var(--neon-cyan);
    text-shadow: 0 0 15px var(--neon-cyan);
}

.header-cta {
    padding: 12px 32px;
    border: 2px solid var(--neon-cyan);
    color: var(--neon-cyan);
    border-radius: 50px;
    font-weight: bold;
    transition: all 0.4s;
}

.header-cta:hover {
    background: var(--neon-cyan);
    color: #000;
    box-shadow: 0 0 30px var(--neon-cyan);
}

.section {
    padding: 140px 5% 80px;
    text-align: center;
}

.section h2 {
    font-size: 3.5rem;
    margin-bottom: 60px;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 35px;
    max-width: 1300px;
    margin: 0 auto;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px;
    transition: all 0.5s ease;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.glass-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 0 50px rgba(0, 255, 255, 0.3);
    border-color: var(--neon-cyan);
}

.skill-tag-usman {
    display: inline-block;
    background: rgba(214, 0, 255, 0.15);
    border: 1px solid var(--neon-purple);
    color: var(--neon-purple);
    padding: 10px 20px;
    border-radius: 30px;
    margin: 8px;
    font-size: 0.95rem;
}

.hero-image img:hover {
    transform: scale(1.05);
    box-shadow: 0 0 80px rgba(0, 255, 255, 0.8);
}

.cta-button {
    display: inline-block;
    padding: 15px 35px;
    margin: 15px 10px;
    border-radius: 50px;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.4s;
}

.hire-btn {
    background: var(--neon-cyan);
    color: #000;
    box-shadow: 0 0 25px var(--neon-cyan);
}

.download-btn {
    border: 2px solid var(--neon-purple);
    color: var(--neon-purple);
    background: transparent;
}

footer {
    padding: 70px 5%;
    text-align: center;
    background: rgba(10, 10, 30, 0.8);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--glass-border);
}

footer a {
    color: var(--neon-cyan);
    text-decoration: none;
}

@media (max-width: 768px) {
    .nav a { margin: 0 10px; font-size: 1rem; }
    .section h2 { font-size: 2.5rem; }
    .card-grid { grid-template-columns: 1fr; }
}