/* ================================================================
 * DATEI: css/components/feedback.css
 * ZWECK: Empty-States, Loading-Spinner, Toast-Notifications, Context-Menu, Alerts
 * DESIGN: Refined Brass Studio - glass morphism toasts, warm charcoal palette
 * REFERENZIERT: css/variables.css (CSS Custom Properties)
 * REFERENZIERT VON: index.html
 * ================================================================ */

/* ========== EMPTY STATE ========== */
.empty-state {
    text-align: center;
    padding: 60px var(--space-5);
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: var(--space-4);
    opacity: 0.6;
}

.empty-state h3 {
    font-size: var(--font-lg);
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: var(--text-primary);
}

.empty-state p {
    max-width: 360px;
    margin-inline: auto;
    line-height: 1.6;
}

.empty-state .btn {
    margin-top: var(--space-4);
}

.empty-state.small {
    padding: var(--space-5) var(--space-3);
}

.empty-state.small i {
    font-size: 1.5rem;
    margin-bottom: var(--space-2);
}

.empty-state.small p {
    font-size: var(--font-xs);
}

/* ========== LOADING ========== */
.loading {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px;
    gap: var(--space-3);
}

.loading p {
    margin: 0;
    color: var(--text-secondary);
    font-size: var(--font-sm);
}

.loading .loading-details {
    font-size: var(--font-xs);
    color: var(--text-muted);
}

.loading .loading-timer {
    font-size: var(--font-base);
    font-weight: 600;
    color: var(--accent-primary);
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-subtle);
    border-top-color: var(--accent-primary);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

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

.loading-medias-hint {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-5);
    color: var(--text-muted);
    font-size: var(--font-sm);
}

.spinner-small {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-subtle);
    border-top-color: var(--accent-primary);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
    flex-shrink: 0;
}

/* ========== TOAST NOTIFICATIONS ========== */
.toast-container {
    position: fixed;
    bottom: var(--space-5);
    right: var(--space-5);
    z-index: 5000;
    display: flex;
    flex-direction: column-reverse;
    gap: var(--space-3);
    pointer-events: none;
}

.toast {
    position: relative;
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-left: 4px solid var(--accent-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-4);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    max-width: 420px;
    animation: toastSlideIn 0.35s var(--transition-bounce);
    pointer-events: auto;
    overflow: hidden;
}

/* ===== Toast Type Variants ===== */
.toast.success {
    border-left-color: var(--accent-success);
}

.toast.error {
    border-left-color: var(--accent-danger);
}

.toast.warning {
    border-left-color: var(--accent-warning);
}

.toast.info {
    border-left-color: var(--accent-primary);
}

/* ===== Toast Icon ===== */
.toast-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    font-size: var(--font-base);
    margin-top: 1px;
}

.toast.success .toast-icon,
.toast.success i {
    color: var(--accent-success);
}

.toast.error .toast-icon,
.toast.error i {
    color: var(--accent-danger);
}

.toast.warning .toast-icon,
.toast.warning i {
    color: var(--accent-warning);
}

.toast.info .toast-icon,
.toast.info i {
    color: var(--accent-primary);
}

/* ===== Toast Message ===== */
.toast-content {
    flex: 1;
    min-width: 0;
}

.toast-title {
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.toast-message {
    font-size: var(--font-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ===== Toast Close ===== */
.toast-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: var(--radius-sm);
    font-size: var(--font-sm);
    transition: background var(--transition-fast),
                color var(--transition-fast);
    margin: -2px -4px 0 0;
}

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

/* ===== Auto-Dismiss Progress Bar ===== */
.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: var(--accent-primary);
    border-radius: 0 var(--radius-xs) 0 0;
    animation: toastCountdown 5s linear forwards;
    opacity: 0.7;
}

.toast.success .toast-progress {
    background: var(--accent-success);
}

.toast.error .toast-progress {
    background: var(--accent-danger);
}

.toast.warning .toast-progress {
    background: var(--accent-warning);
}

@keyframes toastCountdown {
    from { width: 100%; }
    to { width: 0%; }
}

/* ===== Progress Toast ===== */
.toast.progress {
    border-left-color: var(--accent-primary);
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
    min-width: 320px;
}

.toast.progress .toast-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.toast.progress .toast-header i {
    animation: spin 1s linear infinite;
    color: var(--accent-primary);
}

.toast.progress .progress-bar-track {
    width: 100%;
    height: 4px;
    background: var(--bg-inset);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.toast.progress .progress-bar-fill {
    height: 100%;
    background: var(--brass);
    border-radius: var(--radius-full);
    width: 0%;
    transition: width var(--transition-slow);
}

.toast.progress .progress-text {
    font-size: var(--font-xs);
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
}

/* ===== Toast Animations ===== */
.toast.fade-out {
    animation: toastSlideOut 0.3s ease forwards;
}

@keyframes toastSlideIn {
    from {
        transform: translateX(100%) scale(0.95);
        opacity: 0;
    }
    to {
        transform: translateX(0) scale(1);
        opacity: 1;
    }
}

@keyframes toastSlideOut {
    from {
        transform: translateX(0) scale(1);
        opacity: 1;
    }
    to {
        transform: translateX(100%) scale(0.95);
        opacity: 0;
    }
}

/* ========== CONTEXT MENU ========== */
.context-menu {
    position: fixed;
    background: var(--glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    min-width: 200px;
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    display: none;
    overflow: hidden;
    padding: var(--space-1) 0;
    animation: contextFadeIn 0.15s ease;
}

.context-menu.active {
    display: block;
}

@keyframes contextFadeIn {
    from {
        opacity: 0;
        transform: scale(0.96) translateY(-4px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.context-menu-item {
    padding: var(--space-2) var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
    font-size: var(--font-sm);
    color: var(--text-primary);
    transition: background var(--transition-fast),
                color var(--transition-fast);
    border-radius: 0;
    margin: 0 var(--space-1);
    border-radius: var(--radius-sm);
}

.context-menu-item:hover {
    background: var(--bg-hover);
    color: var(--accent-primary);
}

.context-menu-item i {
    width: 16px;
    text-align: center;
    color: var(--text-muted);
    font-size: var(--font-sm);
    transition: color var(--transition-fast);
}

.context-menu-item:hover i {
    color: var(--accent-primary);
}

.context-menu-item.danger {
    color: var(--accent-danger);
}

.context-menu-item.danger i {
    color: var(--accent-danger);
}

.context-menu-item.danger:hover {
    background: var(--danger-subtle);
}

.context-menu-divider {
    height: 1px;
    background: var(--border-subtle);
    margin: var(--space-1) var(--space-2);
}

/* ========== ALERT STYLES ========== */
.alert {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--font-sm);
    line-height: 1.5;
}

.alert i {
    flex-shrink: 0;
}

.alert-error {
    background: var(--danger-subtle);
    color: var(--accent-danger);
    border: 1px solid var(--accent-danger);
    border-opacity: 0.2;
}

.alert-success {
    background: var(--success-subtle);
    color: var(--accent-success);
    border: 1px solid var(--accent-success);
    border-opacity: 0.2;
}

.alert-warning {
    background: var(--warning-subtle);
    color: var(--accent-warning);
    border: 1px solid var(--accent-warning);
    border-opacity: 0.2;
}

.alert-info {
    background: var(--brass-subtle);
    color: var(--accent-primary);
    border: 1px solid var(--accent-primary);
    border-opacity: 0.2;
}

/* ========== MEDIA FOLDER TAG ========== */
.media-folder-tag {
    background: var(--brass);
    padding: 2px 6px;
    border-radius: var(--radius-xs);
    font-size: 9px;
    color: var(--text-on-accent);
    display: inline-flex;
    align-items: center;
    gap: 3px;
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 700;
    position: absolute;
    top: var(--space-1);
    left: var(--space-1);
    z-index: 2;
    letter-spacing: 0.01em;
}

.media-folder-tag i {
    font-size: 8px;
}

/* ========== LOADING HINTS ========== */
.loading-hint {
    font-size: var(--font-xs);
    color: var(--text-muted);
    margin-top: var(--space-3);
    padding: var(--space-2) var(--space-3);
    background: var(--bg-inset);
    border-radius: var(--radius-sm);
    max-width: 300px;
    line-height: 1.5;
}

.timeout-suggestions {
    font-size: var(--font-sm);
    color: var(--text-secondary);
}

.timeout-suggestions ul {
    list-style-type: disc;
    padding-left: var(--space-5);
}

.timeout-suggestions li {
    margin-bottom: var(--space-1);
}

/* ========== CONFIRM DIALOG ========== */
.confirm-dialog-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 6000;
    display: none;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.confirm-dialog-backdrop.active {
    display: block;
}

.confirm-dialog {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    min-width: 380px;
    max-width: 480px;
    z-index: 6001;
    box-shadow: var(--shadow-xl);
    display: none;
    animation: confirmFadeIn 0.2s ease;
}

.confirm-dialog.active {
    display: block;
    transform: translate(-50%, -50%) scale(1);
}

@keyframes confirmFadeIn {
    from { opacity: 0; transform: translate(-50%, -50%) scale(0.92); }
    to { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

.confirm-dialog-header {
    padding: var(--space-5) var(--space-5) var(--space-2);
}

.confirm-dialog-header h3 {
    font-size: var(--font-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.confirm-dialog-body {
    padding: var(--space-2) var(--space-5);
}

.confirm-dialog-body p {
    font-size: var(--font-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.confirm-dialog-footer {
    padding: var(--space-4) var(--space-5);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
}

.btn-danger {
    background: var(--accent-danger);
    color: white;
    border: none;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-sm);
    font-weight: 500;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.btn-danger:hover {
    opacity: 0.9;
}