/**
 * Login Page Styles - Dana Hall School Work Orders Manager
 * Professional, accessible, and mobile-responsive authentication interface
 */

/* Login container and layout */
.login-container {
    min-height: calc(100vh - 140px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    background: linear-gradient(135deg, var(--dana-blue-pale) 0%, rgba(255, 255, 255, 0.9) 50%, var(--dana-blue-pale) 100%);
    position: relative;
}

.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 25% 25%, var(--dana-blue-light-10) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, var(--dana-blue-dark-10) 0%, transparent 50%);
    pointer-events: none;
}

.login-card {
    background-color: var(--background-card);
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    padding: 2.5rem;
    width: 100%;
    max-width: 450px;
    position: relative;
    z-index: 1;
    border: 1px solid var(--border-light);
}

/* Header styling */
.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: contain;
    margin-bottom: 1rem;
    border: 3px solid var(--dana-blue-light-20);
    box-shadow: var(--shadow-md);
}

.login-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--dana-blue-dark);
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 0;
    font-weight: 400;
}

/* Alert styling */
.login-alert {
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    border: none;
    font-weight: 500;
    display: flex;
    align-items: center;
}

.login-alert.alert-danger {
    background-color: var(--color-danger-bg);
    color: var(--color-danger);
    border-left: 4px solid var(--color-danger);
}

.login-alert.alert-info {
    background-color: var(--color-info-bg);
    color: var(--color-info);
    border-left: 4px solid var(--color-info);
}

/* Form styling */
.login-form {
    margin-bottom: 1.5rem;
}

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

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    font-size: 0.95rem;
}

.form-label i {
    color: var(--dana-blue-light);
    width: 16px;
}

.login-input {
    border: 2px solid var(--border-light);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all var(--transition-speed) ease;
    background-color: var(--background-card);
    color: var(--text-primary);
}

.login-input:focus {
    border-color: var(--dana-blue-light);
    box-shadow: 0 0 0 3px var(--dana-blue-light-20);
    outline: none;
    background-color: var(--background-card);
}

.login-input.is-invalid {
    border-color: var(--color-danger);
}

.login-input.is-invalid:focus {
    border-color: var(--color-danger);
    box-shadow: 0 0 0 3px rgba(114, 28, 36, 0.2);
}

/* Password input group */
.password-input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.password-toggle {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: none;
    color: var(--text-muted);
    padding: 0.5rem;
    z-index: 2;
    border-radius: 0.25rem;
    transition: color var(--transition-speed) ease;
}

.password-toggle:hover,
.password-toggle:focus {
    color: var(--dana-blue-light);
    background-color: var(--dana-blue-light-10);
}

/* Form check styling */
.form-check {
    margin-bottom: 1.5rem;
}

.form-check-input {
    border: 2px solid var(--border-light);
    border-radius: 0.25rem;
}

.form-check-input:checked {
    background-color: var(--dana-blue-light);
    border-color: var(--dana-blue-light);
}

.form-check-input:focus {
    box-shadow: 0 0 0 3px var(--dana-blue-light-20);
}

.form-check-label {
    color: var(--text-secondary);
    font-weight: 500;
    margin-left: 0.5rem;
}

/* Login button */
.login-btn {
    width: 100%;
    padding: 0.875rem 1.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 0.5rem;
    transition: all var(--transition-speed) ease;
    background: linear-gradient(135deg, var(--dana-blue-dark) 0%, var(--dana-blue-light) 100%);
    border: none;
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    box-shadow: var(--shadow-md);
}

.login-btn:hover,
.login-btn:focus {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--dana-blue-light) 0%, var(--dana-blue-dark) 100%);
}

.login-btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

/* Divider */
.login-divider {
    display: flex;
    align-items: center;
    margin: 1.5rem 0;
    color: var(--text-muted);
    font-weight: 500;
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--border-light);
}

.login-divider span {
    padding: 0 1rem;
    background-color: var(--background-card);
    font-size: 0.9rem;
}

/* Google login button */
.google-login-btn {
    width: 100%;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 0.5rem;
    border: 2px solid var(--border-light);
    color: var(--text-primary);
    background-color: var(--background-card);
    transition: all var(--transition-speed) ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.google-login-btn:hover,
.google-login-btn:focus {
    border-color: var(--border-medium);
    background-color: var(--background-muted);
    color: var(--text-primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.google-icon {
    flex-shrink: 0;
}

/* Quick login section */
.quick-login-section {
    background-color: var(--background-muted);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-light);
}

.quick-login-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dana-blue-dark);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    text-align: center;
    justify-content: center;
}

.quick-login-title i {
    color: var(--dana-blue-light);
}

.quick-login-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.quick-login-btn {
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    transition: all var(--transition-speed) ease;
    border-width: 2px;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

.quick-login-btn:hover,
.quick-login-btn:focus {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.quick-login-btn i {
    font-size: 0.8rem;
}

/* Footer */
.login-footer {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-light);
}

.login-links {
    margin-bottom: 1rem;
}

.login-link {
    color: var(--dana-blue-light);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color var(--transition-speed) ease;
}

.login-link:hover,
.login-link:focus {
    color: var(--dana-blue-dark);
    text-decoration: underline;
}

.login-link-separator {
    margin: 0 0.75rem;
    color: var(--text-muted);
}

.login-footer-text {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 0;
}

/* Responsive design */
@media (max-width: 576px) {
    .login-container {
        padding: 1rem 0.5rem;
        min-height: calc(100vh - 100px);
    }

    .login-card {
        padding: 2rem 1.5rem;
        border-radius: 0.75rem;
        max-width: 100%;
        margin: 0 0.5rem;
    }

    .login-logo {
        width: 70px;
        height: 70px;
    }

    .login-title {
        font-size: 1.5rem;
    }

    .login-subtitle {
        font-size: 0.95rem;
    }

    .quick-login-buttons {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .quick-login-btn {
        font-size: 0.85rem;
        padding: 0.625rem 0.75rem;
    }

    .form-group {
        margin-bottom: 1.25rem;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .login-card {
        border: 3px solid var(--border-strong);
    }

    .login-input {
        border-width: 3px;
    }

    .login-btn {
        background: var(--dana-blue-dark);
        border: 2px solid var(--dana-blue-dark);
    }

    .google-login-btn {
        border-width: 3px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .login-btn,
    .google-login-btn,
    .quick-login-btn,
    .password-toggle,
    .login-input {
        transition: none;
    }

    .login-btn:hover,
    .google-login-btn:hover,
    .quick-login-btn:hover {
        transform: none;
    }
}

/* Focus management for accessibility */
.login-input:focus,
.login-btn:focus,
.google-login-btn:focus,
.quick-login-btn:focus,
.password-toggle:focus {
    outline: 2px solid var(--focus-color);
    outline-offset: 2px;
}

/* Loading state for buttons */
.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    color: white;
}

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

/* Social Login Styling */
.social-login-section {
    margin-top: 1.5rem;
}

.social-divider {
    text-align: center;
    position: relative;
    margin: 1.5rem 0;
}

.social-divider:before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: #dee2e6;
}

.social-divider span {
    background: #fff;
    padding: 0 1rem;
    position: relative;
    color: #6c757d;
    font-size: 0.875rem;
}

.social-login-btn {
    font-weight: 500;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.social-login-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}