:root {
    --primary-bg: #0f0f23;
    --secondary-bg: #1a1a3a;
    --tertiary-bg: #2d2d5f;
    --accent-color: #64ffda;
    --accent-secondary: #00bcd4;
    --text-primary: #ffffff;
    --text-secondary: #b8b8d1;
    --error-color: #ff4444;
    --success-color: #44ff44;
    --border-color: rgba(100, 255, 218, 0.2);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 1200px;
    width: 100%;
    align-items: start;
}

.auth-card {
    background: linear-gradient(145deg, var(--secondary-bg), var(--tertiary-bg));
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

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

.logo h1 {
    font-family: 'Orbitron', monospace;
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 8px;
}

.logo p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.auth-form h2 {
    font-size: 1.8rem;
    margin-bottom: 24px;
    text-align: center;
    color: var(--text-primary);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(15, 15, 35, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(100, 255, 218, 0.1);
}

.form-group small {
    display: block;
    margin-top: 6px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    opacity: 0.8;
}

.btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-secondary) 100%);
    color: var(--primary-bg);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(100, 255, 218, 0.3);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-loader {
    display: inline-block;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.error-message {
    background: rgba(255, 68, 68, 0.1);
    border: 1px solid var(--error-color);
    color: var(--error-color);
    padding: 12px;
    border-radius: var(--border-radius);
    margin: 16px 0;
    text-align: center;
}

.success-message {
    background: rgba(68, 255, 68, 0.1);
    border: 1px solid var(--success-color);
    color: var(--success-color);
    padding: 12px;
    border-radius: var(--border-radius);
    margin: 16px 0;
    text-align: center;
}

.auth-switch {
    text-align: center;
    margin-top: 20px;
    color: var(--text-secondary);
}

.auth-switch a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

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

.auth-features {
    background: rgba(26, 26, 58, 0.5);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 30px;
}

.auth-features h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.auth-features ul {
    list-style: none;
}

.auth-features li {
    padding: 10px 0;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

@media (max-width: 968px) {
    .auth-container {
        grid-template-columns: 1fr;
    }
    
    .auth-features {
        display: none;
    }
}