:root { 
    --bg: #121212; 
    --card: #1e1e1e; 
    --text: #e0e0e0; 
    --accent: #ff9800; 
    --success: #4caf50; 
    --danger: #f44336; 
    --border: #333; 
}

body { 
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; 
    background: var(--bg); 
    color: var(--text); 
    padding: 15px; 
    margin: 0; 
}

.container { max-width: 900px; margin: 0 auto; }

/* HEADER Y MENÚ USUARIO */
.header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.logo { color: var(--accent); margin: 0; font-size: 1.5rem; letter-spacing: 1px; }

.user-menu-container { position: relative; display: inline-block; }
.user-btn { 
    background: #2d2d2d; border: 1px solid var(--border); color: #fff; 
    padding: 8px 15px; border-radius: 20px; cursor: pointer; font-size: 0.9em; 
    display: flex; align-items: center; gap: 8px; transition: 0.2s;
}
.user-btn:hover { background: #3d3d3d; border-color: #666; }

.dropdown-content {
    display: none; position: absolute; right: 0; top: 110%; 
    background-color: #252525; min-width: 160px; 
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.5); 
    border-radius: 8px; border: 1px solid var(--border); z-index: 100;
    overflow: hidden;
}
.dropdown-content div {
    color: var(--text); padding: 12px 16px; text-decoration: none; 
    display: block; cursor: pointer; font-size: 0.9em; border-bottom: 1px solid #333;
}
.dropdown-content div:last-child { border-bottom: none; }
.dropdown-content div:hover { background-color: #333; }
.text-danger { color: var(--danger) !important; }
.show { display: block; animation: fadeIn 0.2s; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }

/* CARDS Y NAV */
.card { background: var(--card); padding: 15px; border-radius: 12px; margin-bottom: 20px; border: 1px solid var(--border); }
.nav-bar { display: flex; gap: 5px; margin-bottom: 15px; overflow-x: auto; padding-bottom: 5px; }
.nav-btn { background: #2d2d2d; color: #aaa; border: 1px solid var(--border); padding: 10px; flex: 1; cursor: pointer; border-radius: 6px; white-space: nowrap; min-width: 80px; text-align: center; }
.active-tab { background: var(--accent); color: black; border-color: var(--accent); font-weight: bold; }

/* TABLAS Y ELEMENTOS */
table { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 0.9em; }
th, td { padding: 10px; border-bottom: 1px solid #333; text-align: left; }
input { width: 100%; padding: 10px; background: #111; border: 1px solid #444; color: white; margin-bottom: 10px; box-sizing: border-box; border-radius: 4px; }
button { width: 100%; padding: 10px; border: none; border-radius: 6px; cursor: pointer; font-weight: bold; margin-top: 5px; }
.btn-green { background: var(--success); color: white; }
.btn-red { background: var(--danger); color: white; }
.btn-blue { background: #2196f3; color: white; }

.status-dot { height: 10px; width: 10px; background-color: #bbb; border-radius: 50%; display: inline-block; margin-right: 5px; }