:root {
    --primary: #3498db;
    --dark-bg: #1a1a2e;
    --card-bg: #16213e;
    --text-light: #e94560;
    --text-white: #ffffff;
    --gray: #95a5a6;
}

body {
    background-color: var(--dark-bg);
    color: var(--text-white);
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    line-height: 1.6;
}

.container { width: 85%; max-width: 1100px; margin: auto; }

/* Navigation */
nav { background: #0f3460; padding: 1rem 0; position: sticky; top: 0; z-index: 100; }
.nav-flex { display: flex; justify-content: space-between; align-items: center; }
nav ul { display: flex; list-style: none; gap: 20px; margin: 0; }
nav a { color: white; text-decoration: none; font-weight: bold; }

/* Hero Section */
.hero {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(rgba(26, 26, 46, 0.8), rgba(26, 26, 46, 0.8)), 
                url('https://images.unsplash.com/photo-1551288049-bbbda546697a?auto=format&fit=crop&w=1000&q=80');
    background-size: cover;
}

.tagline { font-size: 1.2rem; color: var(--primary); }

/* Cards & Sections */
.card {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

h2 { color: var(--primary); margin-bottom: 20px; }

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.tech-tag {
    background: #0f3460;
    color: var(--primary);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    border: 1px solid var(--primary);
}

/* Footer */
footer { text-align: center; padding: 50px 0; color: var(--gray); border-top: 1px solid #333; }