/* Auth Pages Styles */
.auth-container {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.auth-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 3rem;
    width: 100%;
    max-width: 450px;
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-title {
    font-size: 2rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    color: #6b7280;
    font-size: 1rem;
}

.auth-form {
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.2s ease;
    background: #f9fafb;
    box-sizing: border-box;
}

.form-input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-input.error {
    border-color: #ef4444;
    background: #fef2f2;
}

.checkbox-group {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.checkbox-input {
    margin-right: 0.75rem;
    width: 1.25rem;
    height: 1.25rem;
    accent-color: #667eea;
}

.checkbox-label {
    color: #6b7280;
    font-size: 0.875rem;
    cursor: pointer;
}

.auth-button {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.auth-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.auth-button:active {
    transform: translateY(0);
}

.auth-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.auth-divider {
    text-align: center;
    margin: 2rem 0;
    position: relative;
    color: #9ca3af;
    font-size: 0.875rem;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: #e5e7eb;
}

.auth-divider span {
    background: white;
    padding: 0 1rem;
}

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

.auth-link-text {
    color: #6b7280;
    font-size: 0.875rem;
}

.auth-link a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

.auth-link a:hover {
    color: #764ba2;
}

.error-message {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
}

.error-message p {
    margin: 0;
}

.success-message {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
}

.password-strength {
    margin-top: 0.5rem;
    font-size: 0.75rem;
}

.strength-bar {
    height: 4px;
    background: #e5e7eb;
    border-radius: 2px;
    margin-top: 0.25rem;
    overflow: hidden;
}

.strength-fill {
    height: 100%;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.strength-weak { background: #ef4444; width: 25%; }
.strength-fair { background: #f59e0b; width: 50%; }
.strength-good { background: #10b981; width: 75%; }
.strength-strong { background: #059669; width: 100%; }

/* Responsive */
@media (max-width: 640px) {
    .auth-container {
        padding: 1rem;
    }
    
    .auth-card {
        padding: 2rem;
        border-radius: 12px;
    }
    
    .auth-title {
        font-size: 1.75rem;
    }
}

/* Loading state */
.auth-button.loading {
    color: transparent;
}

.auth-button.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Forgot Password Link */
.forgot-password-link {
    text-align: right;
    margin-bottom: 1.5rem;
}

.forgot-link {
    color: #667eea;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.forgot-link:hover {
    color: #764ba2;
    text-decoration: underline;
}