:root {
    --bg-color: #0b0c10;
    --card-bg: #1f2833;
    --text-color: #c5c6c7;
    --neon-blue: #66fcf1;
    --neon-blue-dark: #45a29e;
    --neon-magenta: #ff00ff;
    --neon-purple: #9d00ff;
    --error-color: #ff4d4d;
    --success-color: #4dff88;
    --font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-family);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

h1, h2, h3 {
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.neon-text {
    color: var(--neon-blue);
    text-shadow: 0 0 5px var(--neon-blue), 0 0 10px var(--neon-blue);
}

.neon-text-magenta {
    color: var(--neon-magenta);
    text-shadow: 0 0 5px var(--neon-magenta), 0 0 10px var(--neon-magenta);
}

header {
    padding: 40px 0;
    text-align: center;
    border-bottom: 1px solid var(--neon-blue-dark);
    margin-bottom: 40px;
}

.card {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(102, 252, 241, 0.1);
    margin-bottom: 30px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border: 2px solid var(--neon-blue);
    background: transparent;
    color: var(--neon-blue);
    text-decoration: none;
    text-transform: uppercase;
    font-weight: bold;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 5px var(--neon-blue);
}

.btn:hover {
    background-color: var(--neon-blue);
    color: var(--bg-color);
    box-shadow: 0 0 20px var(--neon-blue);
}

.btn-magenta {
    border-color: var(--neon-magenta);
    color: var(--neon-magenta);
    box-shadow: 0 0 5px var(--neon-magenta);
}

.btn-magenta:hover {
    background-color: var(--neon-magenta);
    color: var(--bg-color);
    box-shadow: 0 0 20px var(--neon-magenta);
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--neon-blue);
}

input[type="text"],
input[type="password"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 12px;
    background-color: #0b0c10;
    border: 1px solid var(--neon-blue-dark);
    color: white;
    border-radius: 5px;
    outline: none;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--neon-blue);
    box-shadow: 0 0 10px var(--neon-blue-dark);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid rgba(102, 252, 241, 0.1);
}

th {
    color: var(--neon-blue);
    text-transform: uppercase;
}

tr:hover {
    background-color: rgba(102, 252, 241, 0.05);
}

.status-success {
    color: var(--success-color);
    font-weight: bold;
}

.status-error {
    color: var(--error-color);
    font-weight: bold;
}

nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

nav a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: bold;
    padding: 5px 10px;
    border-bottom: 2px solid transparent;
}

nav a:hover, nav a.active {
    color: var(--neon-blue);
    border-bottom: 2px solid var(--neon-blue);
}

/* Responsiveness */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .card {
        padding: 20px;
    }
    
    nav {
        flex-direction: column;
        align-items: center;
    }
    
    table {
        display: block;
        overflow-x: auto;
    }
}