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

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

/* Navegación */
.navbar {
    display: flex;
    justify-content: space-between;
    padding: 1.5rem 10%;
    background: rgba(15, 23, 42, 0.9);
    position: sticky;
    top: 0;
}

.logo { font-weight: bold; font-size: 1.2rem; }
.logo span { color: var(--accent); }

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

/* Contenido Principal */
.hero {
    text-align: center;
    padding: 4rem 1rem;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 2rem 10%;
}

/* Tarjetas de Proyectos */
.card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid #334155;
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

.card-tag {
    color: var(--accent);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tech-stack {
    display: block;
    margin-top: 1rem;
    color: var(--text-dim);
    font-size: 0.9rem;
}

footer {
    text-align: center;
    padding: 3rem;
    color: var(--text-dim);
}

.code-text { font-family: 'Courier New', Courier, monospace; color: var(--accent); }