:root {
    --bg: #0f172a;
    --card-bg: #1e293b;
    --text: #f8fafc;
    --accent: #38bdf8;
    --secondary: #94a3b8;
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    scroll-behavior: smooth;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    padding: 2rem 10%;
    align-items: center;
}

.logo { font-weight: 800; font-size: 1.5rem; letter-spacing: -1px; }
.logo span { color: var(--accent); }

.nav-links { display: flex; list-style: none; gap: 2rem; align-items: center; }
.nav-links a { text-decoration: none; color: var(--text); font-weight: 500; transition: 0.3s; }
.nav-links a:hover { color: var(--accent); }

/* Hero Section */
.hero {
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 10%;
}

.hero h1 { font-size: 4rem; margin-bottom: 1.5rem; line-height: 1.1; }
.highlight { color: var(--accent); }
.hero p { font-size: 1.25rem; color: var(--secondary); max-width: 600px; margin: 0 auto 2rem; }

/* Buttons */
.btn-primary { background: var(--accent); color: var(--bg) !important; padding: 0.8rem 1.5rem; border-radius: 8px; font-weight: bold; }
.btn-outline { border: 1px solid var(--secondary); color: var(--text); padding: 0.8rem 1.5rem; border-radius: 8px; text-decoration: none; }

/* Projects Grid */
.projects { padding: 5rem 10%; }
.section-title { margin-bottom: 3rem; font-size: 2.5rem; text-align: center; }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease;
    border: 1px solid #334155;
}

.card:hover { transform: translateY(-10px); }
.card-img { height: 200px; width: 100%; }
.card-body { padding: 1.5rem; }
.card-body h3 { margin-bottom: 0.5rem; }
.tags { margin-top: 1rem; display: flex; gap: 0.5rem; }
.tags span { font-size: 0.75rem; background: #334155; padding: 0.2rem 0.6rem; border-radius: 4px; color: var(--accent); }

footer { text-align: center; padding: 4rem; color: var(--secondary); border-top: 1px solid #1e293b; }