:root {
    --dark: #121212;
    --darker: #1e1e1e;
    --border: #333;
    --light: #f5f5f5;
    --primary: #00aaff;
    --primary-dark: #0088cc;
    --secondary: #00ffdd;
    --danger: #ff4d4d;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--dark);
    color: var(--light);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-image: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('assets/background.png'); /* Optional: Add a subtle background image */
    background-size: cover;
    background-position: center;
}

.auth-container {
    width: 100%;
    max-width: 420px;
    background: rgba(20, 20, 20, 0.9);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 170, 255, 0.2);
    padding: 3rem;
    position: relative; /* Needed for absolute positioning of the back icon */
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

.auth-title {
    font-family: 'Orbitron', sans-serif;
    color: var(--primary);
    text-align: center;
    margin-bottom: 2.5rem;
    font-size: 2.5rem;
    letter-spacing: 2px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.auth-form input {
    padding: 1rem 1.2rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--light);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.auth-form input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(0, 170, 255, 0.3);
}

.auth-form button {
    background: var(--primary);
    color: var(--light);
    border: none;
    padding: 1rem 0;
    border-radius: 8px;
    font-family: 'Orbitron', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: background 0.3s, transform 0.2s;
}

.auth-form button:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

.auth-link {
    text-align: center;
    margin-top: 1.5rem;
}

.auth-link a {
    color: var(--secondary);
    text-decoration: none;
    font-weight: bold;
    transition: text-decoration 0.3s;
}

.auth-link a:hover {
    text-decoration: underline;
}

.error-message {
    color: var(--danger);
    background: rgba(255, 77, 77, 0.1);
    border: 1px solid var(--danger);
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.back-icon {
    position: absolute;
    top: 30px;
    left: 30px;
    color: var(--light);
    font-size: 1.5rem;
    text-decoration: none;
    transition: color 0.3s ease, transform 0.3s ease;
}

.back-icon:hover {
    color: var(--primary);
    transform: scale(1.1);
}