.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    position: relative;
}

.auth-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, var(--color-bg) 0%, #f5f0e8 100%);
    z-index: 0;
}

.auth-wrapper {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 480px;
    padding: var(--space-xl);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.auth-header h1 {
    font-size: clamp(2.5rem, 8vw, 3.5rem);
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
    letter-spacing: -0.02em;
    font-family: var(--font-heading);
}

.auth-header p {
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

.auth-tabs {
    display: flex;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 4px;
    margin-bottom: var(--space-lg);
}

.auth-tab {
    flex: 1;
    padding: var(--space-md);
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-family: var(--font-body);
}

.auth-tab:hover {
    color: var(--color-primary);
    background: var(--color-hover);
}

.auth-tab.active {
    background: var(--color-primary);
    color: white;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
}

.form-group input {
    padding: var(--space-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 1rem;
    font-family: var(--font-body);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(26, 54, 93, 0.1);
}

.form-group input::placeholder {
    color: var(--color-text-muted);
}

.form-hint {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.btn-full {
    width: 100%;
    padding: var(--space-md);
    font-size: 1rem;
    font-weight: 600;
}

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

.auth-error {
    padding: var(--space-md);
    background: #fee2e2;
    border: 1px solid #fecaca;
    border-radius: var(--radius-sm);
    color: #991b1b;
    text-align: center;
    margin-bottom: var(--space-md);
}

.auth-success {
    padding: var(--space-md);
    background: #dcfce7;
    border: 1px solid #bbf7d0;
    border-radius: var(--radius-sm);
    color: #166534;
    text-align: center;
    margin-bottom: var(--space-md);
}

.hidden {
    display: none !important;
}

.auth-footer {
    text-align: center;
    margin-top: var(--space-lg);
}

.auth-link {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.auth-link:hover {
    color: var(--color-primary-light);
    text-decoration: underline;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    font-family: var(--font-body);
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--color-primary-light);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

@media (max-width: 768px) {
    .auth-wrapper {
        padding: var(--space-lg);
    }
    
    .auth-header h1 {
        font-size: 2.5rem;
    }
}