/* ===================================================================
   UX Improvements für Scarx Dashboard
   Fokus: Besseres User-Feedback, klarere Hierarchie, moderne Interaktionen
   =================================================================== */

/* ----- Loading States & Skeleton Screens ---------------------------- */
@keyframes skeleton-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.skeleton {
    background: linear-gradient(
        90deg,
        var(--scx-bg-muted) 25%,
        var(--scx-bg-hover) 50%,
        var(--scx-bg-muted) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
    border-radius: var(--scx-radius-sm);
}

.skeleton-text {
    height: 0.875rem;
    margin-bottom: 0.5rem;
    border-radius: var(--scx-radius-sm);
}

.skeleton-title {
    height: 1.25rem;
    width: 60%;
    margin-bottom: 1rem;
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid var(--scx-border);
    border-top-color: var(--scx-accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

.spinner-lg {
    width: 2.5rem;
    height: 2.5rem;
    border-width: 3px;
}

/* ----- Better Form UX: Collapsible Filter Sections ------------------ */
.filter-section {
    background: var(--scx-bg-elev-1);
    border: 1px solid var(--scx-border);
    border-radius: var(--scx-radius-lg);
    overflow: hidden;
    margin-bottom: 1.5rem;
    transition: border-color var(--scx-duration) var(--scx-ease);
}

.filter-section:hover {
    border-color: var(--scx-border-strong);
}

.filter-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    cursor: pointer;
    user-select: none;
    background: transparent;
    border-bottom: 1px solid var(--scx-border);
    transition: background var(--scx-duration) var(--scx-ease);
}

.filter-section-header:hover {
    background: var(--scx-bg-hover);
}

.filter-section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--scx-fg);
    margin: 0;
}

.filter-section-title i {
    color: var(--scx-fg-muted);
    font-size: 0.875rem;
}

.filter-section-toggle {
    color: var(--scx-fg-subtle);
    transition: transform var(--scx-duration) var(--scx-ease),
                color var(--scx-duration) var(--scx-ease);
}

.filter-section.expanded .filter-section-toggle {
    transform: rotate(180deg);
}

.filter-section-body {
    padding: 18px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 300ms var(--scx-ease),
                opacity 250ms var(--scx-ease),
                padding 300ms var(--scx-ease);
}

.filter-section.expanded .filter-section-body {
    max-height: 1000px;
    opacity: 1;
}

.filter-section.collapsed .filter-section-body {
    padding-top: 0;
    padding-bottom: 0;
}

/* Better form field presentation */
.form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-field-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--scx-fg);
}

.form-field-label i {
    width: 14px;
    font-size: 0.75rem;
    color: var(--scx-fg-muted);
}

.form-field-hint {
    font-size: 0.75rem;
    color: var(--scx-fg-subtle);
    margin-top: 2px;
}

/* ----- Enhanced Table UX -------------------------------------------- */
.table-container {
    position: relative;
}

.table-sticky-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--scx-bg-muted);
}

.table-sticky-header::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--scx-border);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* Row hover with better transition */
.table-hover tbody tr {
    transition: background var(--scx-duration) var(--scx-ease);
    cursor: default;
}

.table-clickable tbody tr {
    cursor: pointer;
}

/* Better number alignment */
.table-numeric {
    font-variant-numeric: tabular-nums;
    text-align: right;
}

/* Loading row overlay */
.table-loading-overlay {
    position: absolute;
    inset: 0;
    background: var(--scx-bg);
    opacity: 0.85;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5;
    backdrop-filter: blur(2px);
}

/* ----- Better Pagination -------------------------------------------- */
.pagination-compact {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.8125rem;
}

.pagination-info {
    color: var(--scx-fg-muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

.pagination-info strong {
    color: var(--scx-fg);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.pagination-controls {
    display: inline-flex;
    gap: 0;
    background: var(--scx-bg-elev-1);
    border: 1px solid var(--scx-border);
    border-radius: var(--scx-radius-sm);
    overflow: hidden;
}

.pagination-controls .btn {
    border-radius: 0 !important;
    border: none !important;
    border-right: 1px solid var(--scx-border) !important;
    padding: 5px 10px !important;
    min-width: 32px;
    font-size: 0.75rem !important;
}

.pagination-controls .btn:last-child {
    border-right: none !important;
}

.pagination-controls .btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ----- Toast/Notification Improvements ------------------------------ */
.toast-custom {
    background: var(--scx-bg-elev-2) !important;
    border: 1px solid var(--scx-border);
    color: var(--scx-fg);
    box-shadow: var(--scx-shadow-lg);
    border-radius: var(--scx-radius-lg) !important;
    padding: 14px 16px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    min-width: 320px;
    backdrop-filter: blur(8px);
}

.toast-custom-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.toast-custom-content {
    flex: 1;
    min-width: 0;
}

.toast-custom-title {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--scx-fg);
    margin: 0 0 2px;
}

.toast-custom-message {
    font-size: 0.8125rem;
    color: var(--scx-fg-muted);
    margin: 0;
}

.toast-success .toast-custom-icon { color: var(--scx-success); }
.toast-warning .toast-custom-icon { color: var(--scx-warning); }
.toast-error .toast-custom-icon { color: var(--scx-danger); }
.toast-info .toast-custom-icon { color: var(--scx-info); }

/* ----- Focus Indicators (Accessibility) ----------------------------- */
*:focus-visible {
    outline: 2px solid var(--scx-border-focus);
    outline-offset: 2px;
    border-radius: var(--scx-radius-sm);
}

.btn:focus-visible {
    outline-offset: 0;
    box-shadow: 0 0 0 3px var(--scx-accent-soft) !important;
}

.form-control:focus-visible,
.form-select:focus-visible {
    outline: none;
}

/* Skip to main content (keyboard navigation) */
.skip-to-main {
    position: absolute;
    top: -100px;
    left: 12px;
    z-index: 9999;
    background: var(--scx-accent);
    color: white;
    padding: 8px 16px;
    border-radius: var(--scx-radius);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: top 0.2s var(--scx-ease);
}

.skip-to-main:focus {
    top: 12px;
}

/* ----- Improved Button States --------------------------------------- */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: currentColor;
    opacity: 0;
    transition: opacity var(--scx-duration) var(--scx-ease);
    pointer-events: none;
}

.btn:active::after {
    opacity: 0.1;
}

.btn-loading {
    pointer-events: none;
    position: relative;
    color: transparent !important;
}

.btn-loading::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 1rem;
    height: 1rem;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    opacity: 0.6;
}

/* ----- Enhanced Card Interactions ----------------------------------- */
.card-interactive {
    cursor: pointer;
    transition: transform var(--scx-duration) var(--scx-ease),
                border-color var(--scx-duration) var(--scx-ease),
                box-shadow var(--scx-duration) var(--scx-ease);
}

.card-interactive:hover {
    transform: translateY(-2px);
    border-color: var(--scx-border-strong) !important;
    box-shadow: var(--scx-shadow) !important;
}

.card-interactive:active {
    transform: translateY(0);
}

/* ----- Better Badge Design ------------------------------------------ */
.badge-modern {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    border: 1px solid transparent;
}

.badge-modern-icon {
    font-size: 0.625rem;
}

.badge-modern.badge-outlined {
    background: transparent;
}

.badge-modern.badge-primary {
    background: var(--scx-accent-soft);
    color: var(--scx-accent);
}

.badge-modern.badge-primary.badge-outlined {
    border-color: var(--scx-accent);
    color: var(--scx-accent);
}

.badge-modern.badge-success {
    background: var(--scx-success-soft);
    color: var(--scx-success);
}

.badge-modern.badge-success.badge-outlined {
    border-color: var(--scx-success);
    color: var(--scx-success);
}

/* ----- Improved Search/Filter Input --------------------------------- */
.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input-wrapper .search-icon {
    position: absolute;
    left: 12px;
    color: var(--scx-fg-subtle);
    font-size: 0.875rem;
    pointer-events: none;
}

.search-input-wrapper input {
    padding-left: 36px;
}

.search-input-wrapper .search-clear {
    position: absolute;
    right: 8px;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--scx-bg-hover);
    border: none;
    border-radius: 50%;
    color: var(--scx-fg-muted);
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--scx-duration) var(--scx-ease),
                background var(--scx-duration) var(--scx-ease);
    font-size: 0.625rem;
}

.search-input-wrapper input:not(:placeholder-shown) ~ .search-clear {
    opacity: 1;
}

.search-input-wrapper .search-clear:hover {
    background: var(--scx-bg-active);
    color: var(--scx-fg);
}

/* ----- Better Empty States ------------------------------------------ */
.empty-state-enhanced {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 24px;
    text-align: center;
}

.empty-state-icon-wrapper {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--scx-bg-muted);
    border: 1px solid var(--scx-border);
    border-radius: 50%;
    margin-bottom: 20px;
}

.empty-state-icon-wrapper i {
    font-size: 2rem;
    color: var(--scx-fg-subtle);
}

.empty-state-title-enhanced {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--scx-fg);
    margin: 0 0 8px;
}

.empty-state-text-enhanced {
    font-size: 0.875rem;
    color: var(--scx-fg-muted);
    max-width: 42ch;
    line-height: 1.5;
    margin: 0 0 24px;
}

.empty-state-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

/* ----- Tooltips (Improved) ------------------------------------------ */
.tooltip-modern {
    position: relative;
    display: inline-flex;
}

.tooltip-modern-content {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) scale(0.95);
    background: var(--scx-bg-inverse);
    color: var(--scx-fg-inverse);
    padding: 6px 12px;
    border-radius: var(--scx-radius-sm);
    font-size: 0.75rem;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--scx-duration) var(--scx-ease),
                transform var(--scx-duration) var(--scx-ease);
    z-index: 1000;
}

.tooltip-modern:hover .tooltip-modern-content {
    opacity: 1;
    transform: translateX(-50%) scale(1);
}

.tooltip-modern-content::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 4px solid transparent;
    border-top-color: var(--scx-bg-inverse);
}

/* ----- Transition Utilities ----------------------------------------- */
.fade-in {
    animation: fadeIn 300ms var(--scx-ease);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-in-up {
    animation: slideInUp 400ms var(--scx-ease);
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.scale-in {
    animation: scaleIn 200ms var(--scx-ease);
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ----- Responsive Improvements -------------------------------------- */
@media (max-width: 768px) {
    .filter-section-body {
        grid-template-columns: 1fr;
    }

    .pagination-compact {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }

    .pagination-controls {
        justify-content: center;
    }

    .stat-grid {
        grid-template-columns: 1fr;
    }
}

/* ----- 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;
    }

    .skeleton {
        animation: none;
        opacity: 0.7;
    }
}