:root {
    --kitt-black: #0a0a0a;
    --kitt-red: #ff0000;
    --kitt-scanner: #ff0033;
    --kitt-gold: #d4af37;
    --kitt-silver: #c0c0c0;
    --kitt-blue-glow: #00d9ff;
    --font-display: 'Orbitron', sans-serif;
    --font-primary: 'Rajdhani', sans-serif;
}

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

body {
    background: var(--kitt-black);
    color: white;
    font-family: var(--font-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(255, 0, 51, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 217, 255, 0.1) 0%, transparent 50%);
}

.auth-container {
    width: 100%;
    max-width: 450px;
    padding: 20px;
}

.auth-box {
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid rgba(255, 0, 51, 0.3);
    border-radius: 20px;
    padding: 40px;
    backdrop-filter: blur(10px);
    box-shadow:
        0 0 40px rgba(255, 0, 51, 0.2),
        inset 0 0 20px rgba(255, 0, 51, 0.05);
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-logo {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px rgba(255, 0, 51, 0.5));
}

.auth-header h1 {
    font-family: var(--font-display);
    font-size: 28px;
    color: var(--kitt-red);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.auth-header p {
    color: var(--kitt-silver);
    font-size: 16px;
}

.auth-form {
    margin-top: 30px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--kitt-gold);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"] {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 0, 51, 0.3);
    border-radius: 8px;
    color: white;
    font-family: var(--font-primary);
    font-size: 16px;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--kitt-red);
    box-shadow: 0 0 20px rgba(255, 0, 51, 0.3);
    background: rgba(255, 255, 255, 0.08);
}

.form-hint {
    display: block;
    margin-top: 6px;
    color: var(--kitt-silver);
    font-size: 12px;
    opacity: 0.7;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    font-size: 14px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--kitt-silver);
}

.checkbox-label input[type="checkbox"] {
    cursor: pointer;
    accent-color: var(--kitt-red);
}

.link {
    color: var(--kitt-blue-glow);
    text-decoration: none;
    transition: color 0.3s ease;
}

.link:hover {
    color: var(--kitt-gold);
    text-decoration: underline;
}

.btn {
    padding: 14px 30px;
    border: none;
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 16px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--kitt-red), #cc0000);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 0, 51, 0.4);
}

.btn-primary:hover:not(:disabled) {
    background: var(--kitt-gold);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.5);
    transform: translateY(-2px);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-full {
    width: 100%;
}

.auth-divider {
    text-align: center;
    margin: 30px 0;
    position: relative;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    height: 1px;
    background: rgba(255, 0, 51, 0.3);
}

.auth-divider::before {
    left: 0;
}

.auth-divider::after {
    right: 0;
}

.auth-divider span {
    background: var(--kitt-black);
    padding: 0 15px;
    color: var(--kitt-silver);
    font-size: 14px;
}

.auth-social {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.btn-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: white;
    font-family: var(--font-primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-social:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.auth-footer {
    text-align: center;
    margin-top: 30px;
    color: var(--kitt-silver);
    font-size: 14px;
}

.error-message {
    margin-top: 20px;
    padding: 12px 16px;
    background: rgba(255, 0, 0, 0.1);
    border: 2px solid rgba(255, 0, 0, 0.3);
    border-radius: 8px;
    color: #ff6b6b;
    font-size: 14px;
    text-align: center;
}

.success-message {
    margin-top: 20px;
    padding: 12px 16px;
    background: rgba(0, 255, 0, 0.1);
    border: 2px solid rgba(0, 255, 0, 0.3);
    border-radius: 8px;
    color: #51cf66;
    font-size: 14px;
    text-align: center;
}

/* Loading animation */
@keyframes spinner {
    to {
        transform: rotate(360deg);
    }
}

.btn-primary.loading::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-left: 10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spinner 0.6s linear infinite;
}

/* Mobile responsive */
@media (max-width: 480px) {
    .auth-box {
        padding: 30px 20px;
    }

    .auth-header h1 {
        font-size: 24px;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}