:root {
    --bg-color: #0d1117;
    --card-bg: #161b22;
    --primary: #01ae16;
    --primary-hover: #01de1d;
    --text-color: #f0f6fc;
    --text-muted: #8b949e;
    --border-color: #30363d;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', -apple-system, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: var(--primary-hover);
}

/* Navbar Moderno */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    background-color: rgba(13, 17, 23, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links li a {
    color: var(--text-muted);
    font-weight: 500;
}

.nav-links li a:hover {
    color: var(--text-color);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #00d2ff);
    color: #fff !important;
    padding: 0.5rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(1, 174, 22, 0.3);
    transition: transform 0.2s, box-shadow 0.2s;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(1, 174, 22, 0.5);
    background: linear-gradient(135deg, var(--primary-hover), #00d2ff);
}

.main-content {
    margin-top: 80px; /* Space for navbar */
    min-height: 80vh;
}

/* Footer Premium */
.footer {
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 3rem 5%;
    text-align: center;
    color: var(--text-muted);
}