/* assets/css/auth.css - Authentication screen styles */

.auth-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.5s ease-in-out;
}

.auth-container {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-2xl);
    width: 100%;
    max-width: 400px;
    margin: var(--spacing-md);
    animation: slideUp 0.6s ease-out;
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.auth-header h1 {
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
    font-size: 1.875rem;
    font-weight: 700;
}

.auth-header p {
    color: var(--gray-600);
    font-size: 0.875rem;
    line-height: 1.5;
}

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

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

.form-group label {
    font-weight: 500;
    color: var(--gray-700);
    font-size: 0.875rem;
}

.form-group select,
.form-group input {
    padding: var(--spacing-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-fast);
    background-color: var(--white);
}

.form-group select:focus,
.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group select:hover,
.form-group input:hover {
    border-color: var(--gray-300);
}

.form-group select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right var(--spacing-sm) center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-group input::placeholder {
    color: var(--gray-400);
}

#loginButton {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    position: relative;
    overflow: hidden;
}

#loginButton span {
    transition: opacity var(--transition-fast);
}

#loginButton.loading span {
    opacity: 0;
}

#loginButton.loading .button-spinner {
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.auth-error {
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    text-align: center;
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Form validation states */
.form-group.error select,
.form-group.error input {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.form-group.success select,
.form-group.success input {
    border-color: var(--success-color);
    box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1);
}

/* Loading states */
.auth-form.loading {
    pointer-events: none;
    opacity: 0.7;
}

.auth-form.loading select,
.auth-form.loading input {
    background-color: var(--gray-50);
}

/* Success state animation */
.auth-container.success {
    animation: successPulse 0.6s ease-in-out;
}

@keyframes successPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); box-shadow: 0 0 20px rgba(5, 150, 105, 0.3); }
    100% { transform: scale(1); }
}

/* Responsive design for mobile */
@media (max-width: 768px) {
    .auth-container {
        padding: var(--spacing-xl);
        margin: var(--spacing-sm);
        max-width: 350px;
    }
    
    .auth-header h1 {
        font-size: 1.5rem;
    }
    
    .form-group select,
    .form-group input {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    #loginButton {
        padding: var(--spacing-sm) var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .auth-container {
        padding: var(--spacing-lg);
        margin: var(--spacing-xs);
        max-width: 320px;
    }
    
    .auth-header {
        margin-bottom: var(--spacing-lg);
    }
    
    .auth-header h1 {
        font-size: 1.375rem;
    }
    
    .auth-form {
        gap: var(--spacing-md);
    }
}

/* Enhanced visual feedback */
.form-group {
    position: relative;
}

.form-group::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--info-color));
    border-radius: var(--radius-sm);
    transform: scaleX(0);
    transition: transform var(--transition-fast);
}

.form-group.focused::after {
    transform: scaleX(1);
}

/* Dark mode support (if needed) */
@media (prefers-color-scheme: dark) {
    .auth-screen {
        background: linear-gradient(135deg, #1e3a8a 0%, #581c87 100%);
    }
    
    .auth-container {
        background: var(--gray-800);
        color: var(--white);
    }
    
    .auth-header h1 {
        color: var(--white);
    }
    
    .auth-header p {
        color: var(--gray-300);
    }
    
    .form-group label {
        color: var(--gray-200);
    }
    
    .form-group select,
    .form-group input {
        background-color: var(--gray-700);
        border-color: var(--gray-600);
        color: var(--white);
    }
    
    .form-group input::placeholder {
        color: var(--gray-400);
    }
}