:root {
    --bg: #0f172a;
    --card-bg: #1e293b;
    --text: #f8fafc;
    --accent: #38bdf8;
    --border: #334155;
}

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

/* Navigation */
nav {
    display: flex;
    justify-content: space-between;
    padding: 1.5rem 10%;
    background: rgba(15, 23, 42, 0.9);
    position: sticky;
    top: 0;
    backdrop-filter: blur(10px);
}

nav ul { display: flex; list-style: none; gap: 2rem; }
nav a { text-decoration: none; color: var(--text); font-weight: 600; font-size: 0.9rem; transition: 0.3s; }
nav a:hover { color: var(--accent); }

/* Hero Section */
.hero { text-align: center; padding: 4rem 1rem; border-bottom: 1px solid var(--border); }
.hero h1 { font-size: 3rem; margin: 0; }
.subtitle { color: var(--accent); font-family: 'Fira Code', monospace; }

/* Main Content */
main { max-width: 800px; margin: 0 auto; padding: 2rem; }
section { margin-bottom: 4rem; }
h2 { border-left: 4px solid var(--accent); padding-left: 1rem; color: var(--accent); }

/* Skills Chips */
.skills-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.skills-grid span {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
}

/* Buttons */
.download-container { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn {
    background: var(--accent);
    color: var(--bg);
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: transform 0.2s;
}
.btn:hover { transform: translateY(-3px); }

/* Footer */
footer { text-align: center; padding: 2rem; font-size: 0.8rem; color: #64748b; }