* {
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    margin: 0;
    background: #00040b;
    color: #e5f3ff;
}

/* ===== SIDEBAR ===== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 240px;
    height: 100vh;
    background: #07111c;
    padding: 20px;
    box-shadow: 0 0 20px rgba(0,194,255,0.25);
    overflow-y: auto;
}

.sidebar h2 {
    color: #00c2ff;
    margin-bottom: 10px;
}

.sidebar a {
    display: block;
    color: #ffffff;
    text-decoration: none;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 8px;
    transition: 0.2s;
}

.sidebar a:hover {
    background: #0d1c2b;
}

.sidebar a.active {
    background: linear-gradient(90deg, #00c2ff, #0077ff);
    color: #000;
    font-weight: bold;
    box-shadow: 0 0 12px rgba(0,194,255,0.6);
}

.sidebar .logout {
    margin-top: 30px;
    color: #ff5c5c;
}

/* ===== CONTENT ===== */
.content {
    margin-left: 260px;
    padding: 30px;
}

.content h1 {
    color: #00c2ff;
}

/* ===== DASHBOARD CARDS ===== */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.card {
    background: #07111c;
    padding: 22px;
    border-radius: 16px;
    text-decoration: none;
    color: #e5f3ff;
    box-shadow: 0 0 15px rgba(0,194,255,0.15);
    transition: 0.25s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 30px rgba(0,194,255,0.45);
}

.card h3 {
    margin-top: 0;
    color: #00c2ff;
}

.card p {
    opacity: 0.85;
}

/* ===== TABLE ===== */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 30px;
    background: #07111c;
    border-radius: 14px;
    overflow: hidden;
}

.table th,
.table td {
    padding: 14px;
    text-align: left;
}

.table th {
    background: #0d1c2b;
    color: #00c2ff;
}

.table tr:nth-child(even) {
    background: #0a1624;
}

/* ===== LOGIN BOX ===== */
.login-box {
    max-width: 380px;
    margin: 120px auto;
    background: #07111c;
    padding: 30px;
    border-radius: 18px;
    box-shadow: 0 0 25px rgba(0,194,255,0.3);
}

.login-box h2 {
    text-align: center;
    color: #00c2ff;
}

.login-box input {
    width: 100%;
    margin-bottom: 14px;
    padding: 12px;
    border-radius: 12px;
    border: 1px solid #0e2238;
    background: #000;
    color: #e6f7ff;
}

.login-box button {
    width: 100%;
    padding: 12px;
    border-radius: 14px;
    border: none;
    background: linear-gradient(135deg, #00c2ff, #0077ff);
    font-weight: bold;
    cursor: pointer;
}