:root {
    --primary: #2c3e50;
    --accent: #d4f01e;
    --bg: #f4f7f6;
    --text: #2d3436;
    --white: #ffffff;
}

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

/* NAVBAR SUPERIOR */
.navbar {
    background: var(--primary);
    padding: 0 20px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar-brand {
    color: var(--accent);
    font-weight: 900;
    font-size: 1.2rem;
    text-decoration: none;
    letter-spacing: 1px;
}

.navbar-nav {
    display: flex;
    gap: 20px;
}

.navbar-nav a {
    color: #bdc3c7;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 700;
    transition: 0.3s;
    text-transform: uppercase;
}

.navbar-nav a:hover, .navbar-nav a.active {
    color: var(--accent);
}

/* CONTENEDOR */
.container {
    max-width: 1100px;
    margin: 30px auto;
    padding: 0 20px;
}

.card {
    background: var(--white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    border: 1px solid #e1e8ed;
    margin-bottom: 25px;
}

h1, h2, h3 { text-transform: uppercase; margin-top: 0; }

/* BOTONES */
.btn {
    background: var(--primary);
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-weight: bold;
    cursor: pointer;
    text-transform: uppercase;
    text-decoration: none;
    display: inline-block;
}

.btn-accent { background: var(--accent); color: #000; }

/* TABLAS */
table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 15px; background: #f8f9fa; color: #7f8c8d; font-size: 0.7rem; text-transform: uppercase; border-bottom: 2px solid #eee; }
td { padding: 15px; border-bottom: 1px solid #f1f1f1; font-size: 0.9rem; }