/* Enhanced UI Components and Toast Notifications */

/* Toast Notifications */
.toast-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    min-width: 300px;
    max-width: 400px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    z-index: 9999;
    border-left: 4px solid;
    opacity: 1;
    transform: translateX(0);
}

.toast-notification.toast-success {
    border-left-color: #28a745;
}

.toast-notification.toast-error {
    border-left-color: #dc3545;
}

.toast-notification.toast-warning {
    border-left-color: #ffc107;
}

.toast-notification.toast-info {
    border-left-color: #17a2b8;
}

.toast-content {
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.toast-message {
    flex: 1;
    font-size: 14px;
    line-height: 1.4;
    color: #333;
}

.toast-close {
    background: none;
    border: none;
    font-size: 20px;
    color: #999;
    cursor: pointer;
    padding: 0;
    margin-left: 12px;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.toast-close:hover {
    background-color: rgba(0, 0, 0, 0.1);
    color: #666;
}



/* Enhanced Form Validation */
.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-control {
    border: 2px solid #e9ecef;
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 14px;
}

.form-control:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.form-control.is-valid {
    border-color: #28a745;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2328a745' d='m2.3 6.73.6.6 4.6-4.6.6.6-5.2 5.2-2-2 .6-.6 1.4 1.4z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}

.form-control.is-invalid {
    border-color: #dc3545;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath d='m5.5 5.5 2.5 2.5m0-2.5-2.5 2.5'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}

.field-error {
    display: block;
    font-size: 12px;
    color: #dc3545;
    margin-top: 4px;
    font-weight: 500;
}

/* Enhanced Button Styles */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    padding: 12px 24px;
    font-size: 14px;
    position: relative;
    overflow: hidden;
}

.btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover:before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, #007bff, #0056b3);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Loading Spinner */
.spinner-border-sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

/* Enhanced Card Components */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.card-header {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 20px;
}

.card-body {
    padding: 24px;
}

/* Video Player Enhancements */
.video-container {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.video-container video {
    width: 100%;
    height: auto;
    display: block;
}

.video-container.loading:after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.video-error-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
}

.error-content i {
    font-size: 48px;
    margin-bottom: 16px;
    color: #ffc107;
}

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

/* Accessibility Improvements */
.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Focus indicators */
*:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

button:focus,
.btn:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .card {
        border: 2px solid #000;
    }

    .btn {
        border: 2px solid currentColor;
    }

    .form-control {
        border: 2px solid #000;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Print styles */
@media print {
    .toast-notification,
    .chatbot-widget,
    .btn,
    nav,
    footer {
        display: none !important;
    }

    .card {
        box-shadow: none;
        border: 1px solid #000;
    }

    a[href]:after {
        content: " (" attr(href) ")";
        font-size: 12px;
    }
}

/* Mobile-specific enhancements */
@media (max-width: 768px) {
    .toast-notification {
        left: 10px;
        right: 10px;
        min-width: auto;
        max-width: none;
    }

    .form-control {
        font-size: 16px; /* Prevents zoom on iOS */
    }

    .btn {
        min-height: 44px; /* Touch-friendly size */
    }

    .card {
        margin-bottom: 16px;
    }
}

/* Dark mode support (if needed in future) */
@media (prefers-color-scheme: dark) {
    .card {
        background-color: #2d3748;
        color: #e2e8f0;
    }

    .form-control {
        background-color: #4a5568;
        border-color: #718096;
        color: #e2e8f0;
    }

    .toast-notification {
        background-color: #2d3748;
        color: #e2e8f0;
    }
}