/* ============================================
   TEVKIL - GLOBAL COMPONENTS
   Modern UI Components & Utilities
   ============================================ */

/* Loading Skeleton */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.skeleton {
    background: linear-gradient(
        90deg,
        #f0f0f0 0%,
        #e0e0e0 20%,
        #f0f0f0 40%,
        #f0f0f0 100%
    );
    background-size: 1000px 100%;
    animation: shimmer 2s infinite linear;
    border-radius: 8px;
}

.skeleton-text {
    height: 16px;
    margin-bottom: 8px;
    border-radius: 4px;
}

.skeleton-text.large {
    height: 24px;
}

.skeleton-text.small {
    height: 12px;
}

.skeleton-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
}

.skeleton-card {
    width: 100%;
    height: 200px;
    border-radius: 12px;
}

.skeleton-button {
    width: 120px;
    height: 40px;
    border-radius: 8px;
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

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

.spinner-primary {
    border: 3px solid rgba(48, 105, 108, 0.2);
    border-top-color: var(--primary);
}

.spinner-lg {
    width: 48px;
    height: 48px;
    border-width: 4px;
}

.spinner-sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loading-content {
    text-align: center;
}

.loading-content .spinner {
    margin-bottom: 1rem;
}

.loading-content p {
    color: var(--text-dark);
    font-weight: 600;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    pointer-events: none;
}

.toast {
    background: white;
    padding: 1rem 1.25rem;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 300px;
    max-width: 450px;
    pointer-events: all;
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast.hide {
    transform: translateX(400px);
    opacity: 0;
}

.toast-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.toast-success .toast-icon {
    background: #d1fae5;
    color: #065f46;
}

.toast-error .toast-icon {
    background: #fee2e2;
    color: #991b1b;
}

.toast-warning .toast-icon {
    background: #fef3c7;
    color: #92400e;
}

.toast-info .toast-icon {
    background: rgba(48, 105, 108, 0.1);
    color: var(--primary);
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    font-size: 0.9rem;
    margin: 0 0 0.25rem 0;
    color: var(--text-dark);
}

.toast-message {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0;
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
}

.toast-close:hover {
    background: var(--bg-light);
    color: var(--text-dark);
}

/* Progress Bar */
.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width 0.3s ease;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
}

.badge-primary {
    background: rgba(48, 105, 108, 0.1);
    color: var(--primary);
}

.badge-secondary {
    background: rgba(245, 158, 11, 0.1);
    color: var(--secondary);
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.badge-info {
    background: #dbeafe;
    color: #1e40af;
}

/* Tooltips */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    padding: 0.5rem 0.75rem;
    background: var(--text-dark);
    color: white;
    font-size: 0.75rem;
    white-space: nowrap;
    border-radius: 6px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s;
    pointer-events: none;
    z-index: 1000;
}

.tooltip::after {
    content: '';
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    border: 5px solid transparent;
    border-top-color: var(--text-dark);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s;
    pointer-events: none;
}

.tooltip:hover::before,
.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* Pulse Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Fade In Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.fade-in-delay-1 {
    animation: fadeIn 0.5s ease-out 0.1s both;
}

.fade-in-delay-2 {
    animation: fadeIn 0.5s ease-out 0.2s both;
}

.fade-in-delay-3 {
    animation: fadeIn 0.5s ease-out 0.3s both;
}

/* Scale In Animation */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.scale-in {
    animation: scaleIn 0.3s ease-out;
}

/* Slide In Animation */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.4s ease-out;
}

/* Empty State Enhancements */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.15;
}

.empty-state-icon svg {
    width: 40px;
    height: 40px;
    color: white;
}

.empty-state h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.empty-state p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* Card Hover Effects */
.hover-lift {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(48, 105, 108, 0.15);
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Form Validation States */
.form-input.is-valid {
    border-color: #10b981;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2310b981' stroke-width='3'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px;
    padding-right: 2.5rem;
}

.form-input.is-invalid {
    border-color: #ef4444;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23ef4444' stroke-width='3'%3E%3Cline x1='18' y1='6' x2='6' y2='18'%3E%3C/line%3E%3Cline x1='6' y1='6' x2='18' y2='18'%3E%3C/line%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px;
    padding-right: 2.5rem;
}

.form-feedback {
    display: block;
    font-size: 0.85rem;
    margin-top: 0.5rem;
    font-weight: 500;
}

.form-feedback.valid {
    color: #10b981;
}

.form-feedback.invalid {
    color: #ef4444;
}

/* Mobile Optimizations */
@media (max-width: 768px) {
    .toast-container {
        top: auto;
        bottom: 1rem;
        right: 1rem;
        left: 1rem;
    }
    
    .toast {
        min-width: auto;
        width: 100%;
    }
    
    .empty-state {
        padding: 3rem 1.5rem;
    }
}

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

.focus-visible:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .toast-container,
    .loading-overlay {
        display: none !important;
    }
}