/**
 * Inklucut - Stylesheet
 * =====================
 *
 * Barrierefreies Design nach WCAG 2.2 / BITV 2.0
 *
 * Wichtige Prinzipien:
 * - Hoher Kontrast (mindestens 4.5:1 für Text)
 * - Deutliche Fokus-Indikatoren
 * - Keine rein visuellen Informationen
 * - Responsive und zoombar bis 200%
 */

/* ==================
   CSS Custom Properties
   ================== */

:root {
    /* Farben mit hohem Kontrast */
    --color-bg: #ffffff;
    --color-bg-secondary: #f5f5f5;
    --color-text: #1a1a1a;
    --color-text-secondary: #4a4a4a;
    --color-border: #767676;

    /* Akzentfarben */
    --color-primary: #0056b3;
    --color-primary-hover: #003d80;
    --color-focus: #005fcc;

    /* Status-Farben */
    --color-success: #0a7d0a;
    --color-error: #c41e3a;
    --color-warning: #8b6914;

    /* Auswahl/Ausgeblendet */
    --color-selected: #cce5ff;
    --color-hidden: #ffe0e0;
    --color-hidden-text: #666666;

    /* Abstände */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Fokus-Ring */
    --focus-outline: 3px solid var(--color-focus);
    --focus-outline-offset: 2px;

    /* Schrift */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
    --font-family-mono: "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --line-height: 1.5;
}

/* ==================
   Reset & Base
   ================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 100%; /* Respektiert Browser-Einstellungen */
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height);
    color: var(--color-text);
    background-color: var(--color-bg);
}

/* ==================
   Focus Styles
   ==================
   WICHTIG: Fokus-Indikatoren niemals entfernen!
   Sie sind essentiell für Tastatur-Navigation.
*/

:focus {
    outline: var(--focus-outline);
    outline-offset: var(--focus-outline-offset);
}

/* Nur bei Maus-Klick Fokus-Ring verstecken */
:focus:not(:focus-visible) {
    outline: none;
}

/* Bei Tastatur-Navigation immer anzeigen */
:focus-visible {
    outline: var(--focus-outline);
    outline-offset: var(--focus-outline-offset);
}

/* ==================
   Skip-Link
   ==================
   Versteckt bis fokussiert, dann sichtbar.
   Ermöglicht direktes Springen zum Hauptinhalt.
*/

.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    z-index: 1000;
    padding: var(--spacing-md);
    background-color: var(--color-primary);
    color: #ffffff;
    font-weight: bold;
    text-decoration: none;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 0;
}

/* ==================
   Visually Hidden
   ==================
   Versteckt für sehende Nutzer,
   aber zugänglich für Screenreader.
*/

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

/* ==================
   Header
   ================== */

header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
}

header h1 {
    margin: 0;
    font-size: var(--font-size-xl);
}

header .tagline {
    margin: 0;
    color: var(--color-text-secondary);
}

header nav {
    margin-left: auto;
    display: flex;
    gap: var(--spacing-sm);
}

/* ==================
   Buttons
   ==================
   Mindestgröße 44x44px für Touch (WCAG 2.5.8)
*/

button {
    min-height: 44px;
    min-width: 44px;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: inherit;
    font-size: var(--font-size-base);
    font-weight: 500;
    color: #ffffff;
    background-color: var(--color-primary);
    border: 2px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
}

button:hover {
    background-color: var(--color-primary-hover);
}

button:focus-visible {
    outline: var(--focus-outline);
    outline-offset: var(--focus-outline-offset);
}

button:disabled {
    background-color: #888888;
    cursor: not-allowed;
    opacity: 0.7;
}

/* Sekundärer Button-Stil */
button.secondary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

button.secondary:hover {
    background-color: var(--color-primary);
    color: #ffffff;
}

/* ==================
   Layout
   ================== */

main {
    padding: var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
}

/* ==================
   Tab-Leiste
   ================== */

.panel-tabs {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background-color: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
}

.panel-tab {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: transparent;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all 0.2s ease;
}

.panel-tab:hover {
    background-color: var(--color-bg);
}

.panel-tab.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.panel-tab:focus {
    outline: var(--focus-outline);
    outline-offset: 2px;
}

/* Tastatur-Hinweis im Tab */
.tab-key {
    display: inline-block;
    padding: 0.1rem 0.4rem;
    margin-right: 0.3rem;
    background-color: rgba(0,0,0,0.15);
    border-radius: 3px;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: var(--font-family-mono);
}

.panel-tab.active .tab-key {
    background-color: rgba(255,255,255,0.25);
}

/* Papierkorb-Tab */
.trash-tab {
    margin-left: auto;
    background-color: transparent;
    border-style: dashed;
}

.trash-tab:hover {
    background-color: var(--color-hidden);
    border-style: solid;
}

/* ==================
   3-Panel Layout
   ================== */

.app-layout {
    display: grid;
    grid-template-columns: 280px 1fr 300px;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    min-height: calc(100vh - 220px);
}

/* Dynamische Spalten wenn Panels ausgeblendet */
.app-layout.hide-video {
    grid-template-columns: 1fr 300px;
}

.app-layout.hide-agent {
    grid-template-columns: 280px 1fr;
}

.app-layout.hide-video.hide-agent {
    grid-template-columns: 1fr;
}

.app-layout.hide-transcript {
    grid-template-columns: 280px 300px;
}

.app-layout.hide-video.hide-transcript {
    grid-template-columns: 1fr;
}

.app-layout.hide-agent.hide-transcript {
    grid-template-columns: 1fr;
}

/* Panel verstecken */
.panel.hidden {
    display: none;
}

/* Responsive: Bei kleinem Bildschirm untereinander */
@media (max-width: 1200px) {
    .app-layout {
        grid-template-columns: 250px 1fr;
    }
    .agent-panel {
        grid-column: 1 / -1;
    }
}

@media (max-width: 800px) {
    .app-layout {
        grid-template-columns: 1fr;
    }
}

/* ==================
   Panel-Grundstruktur
   ================== */

.panel {
    display: flex;
    flex-direction: column;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    overflow: hidden;
}

/* Panel-Header nicht mehr nötig - wir nutzen jetzt Tabs */

.panel-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm);
}

/* Alte Toggle-Styles entfernt - wir nutzen jetzt Tabs */

/* ==================
   Video-Panel (Links)
   ================== */

.video-panel {
    min-width: 250px;
}

.video-panel .panel-content {
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* ==================
   Editor-Panel (Mitte)
   ================== */

.editor-panel {
    min-width: 300px;
}

.editor-panel .panel-content {
    padding: 0;
}

.video-description {
    padding: var(--spacing-sm);
    background-color: var(--color-bg-tertiary);
    border-left: 3px solid var(--color-primary);
    font-size: 0.9rem;
    margin: var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.video-description p {
    margin: 0;
}

.editor-status {
    padding: var(--spacing-sm);
    background-color: var(--color-bg-secondary);
    font-size: 0.875rem;
}

.editor-status p {
    margin: 0;
}

/* Video-Player */
.video-player-container {
    background-color: #000;
    min-height: 150px;
}

.video-player-container video {
    width: 100%;
    min-height: 150px;
    max-height: 300px;
    display: block;
    object-fit: contain;
}

.video-player-container video.loaded {
    display: block;
}

/* Eigene Video-Controls */
.video-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: #1a1a1a;
}

.video-control-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-primary);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    flex-shrink: 0;
}

.video-control-btn:hover {
    background-color: var(--color-primary-hover);
}

.video-control-btn:focus {
    outline: 2px solid white;
    outline-offset: 2px;
}

.video-time {
    color: #ccc;
    font-family: var(--font-family-mono);
    font-size: 0.75rem;
}

/* Liste ausgeblendeter Elemente */
.hidden-list {
    max-height: 300px;
    overflow-y: auto;
    border: 2px solid var(--color-border);
    border-radius: 4px;
    padding: var(--spacing-sm);
}

.hidden-list-item {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 4px;
    cursor: default;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.hidden-list-item:focus,
.hidden-list-item.current {
    background-color: var(--color-selected);
    outline: 2px solid var(--color-primary);
}

.hidden-list-item .timestamp {
    font-family: var(--font-family-mono);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.hidden-list-item .restore-hint {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    font-style: italic;
}

.hidden-list .empty-message {
    color: var(--color-text-secondary);
    font-style: italic;
    text-align: center;
    padding: var(--spacing-lg);
}

/* ==================
   Transkript-Editor
   ==================
   Kernkomponente für Wort-Navigation
*/

.transcript-editor {
    flex: 1;
    min-height: 300px;
    padding: var(--spacing-md);
    background-color: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: 4px;
    overflow-y: auto;

    /* Text-Darstellung */
    font-size: var(--font-size-lg);
    line-height: 2; /* Mehr Platz zwischen Zeilen für Lesbarkeit */
}

.transcript-editor:focus {
    border-color: var(--color-focus);
}

.transcript-editor .placeholder-text {
    color: var(--color-text-secondary);
    font-style: italic;
}

/* Einzelne Wörter */
.transcript-word {
    display: inline;
    padding: 2px 4px;
    margin: 0 2px;
    border-radius: 3px;
    cursor: default;
    transition: background-color 0.1s;
}

/* Aktuelles Wort (Fokus) */
.transcript-word.current {
    background-color: var(--color-selected);
    outline: 2px solid var(--color-primary);
    outline-offset: 1px;
}

/* Ausgewählte Wörter */
.transcript-word.selected {
    background-color: var(--color-selected);
}

/* Ausgeblendete Wörter */
.transcript-word.hidden {
    background-color: var(--color-hidden);
    color: var(--color-hidden-text);
    text-decoration: line-through;
}

/* Ausgeblendet + Ausgewählt */
.transcript-word.hidden.selected {
    background-color: #ffcccc;
}

/* Satzende-Markierung (für Navigation) */
.transcript-word.sentence-end::after {
    content: "";
    display: inline-block;
    width: 0.5em;
}

/* ==================
   Statistiken
   ================== */

.statistics {
    padding: var(--spacing-sm);
    background-color: var(--color-bg-secondary);
    font-size: 0.8rem;
}

.statistics dl {
    display: grid;
    grid-template-columns: auto 1fr auto 1fr;
    gap: var(--spacing-xs) var(--spacing-sm);
    margin: 0;
}

.statistics dt {
    font-weight: 500;
    color: var(--color-text-secondary);
}

.statistics dd {
    margin: 0;
    font-weight: 600;
}

/* ==================
   Agent-Panel (Rechts)
   ================== */

.agent-panel {
    min-width: 250px;
}

.agent-panel .panel-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: 0;
}

/* Nachrichten-Container */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm);
    background-color: var(--color-bg-secondary);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    min-height: 150px;
}

/* Einzelne Nachricht */
.message {
    padding: var(--spacing-sm);
    border-radius: 6px;
    max-width: 95%;
    font-size: 0.875rem;
}

.message p {
    margin: 0 0 var(--spacing-xs) 0;
}

.message p:last-child {
    margin-bottom: 0;
}

.message ul {
    margin: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    font-size: 0.8rem;
}

/* Nutzer-Nachricht */
.message-user {
    align-self: flex-end;
    background-color: var(--color-primary);
    color: #ffffff;
}

/* Assistent-Nachricht */
.message-assistant {
    align-self: flex-start;
    background-color: #ffffff;
    border: 1px solid var(--color-border);
}

/* Chat-Eingabe */
.chat-form {
    display: flex;
    gap: var(--spacing-sm);
}

.chat-input {
    flex: 1;
    min-height: 44px;
    padding: var(--spacing-sm);
    font-family: inherit;
    font-size: var(--font-size-base);
    border: 2px solid var(--color-border);
    border-radius: 4px;
    resize: vertical;
}

.chat-input:focus {
    border-color: var(--color-focus);
    outline: none;
}

/* ==================
   Modale Dialoge
   ================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal[hidden] {
    display: none;
}

.modal-content {
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    padding: var(--spacing-xl);
    background-color: var(--color-bg);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.modal-content h2 {
    margin-top: 0;
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    justify-content: flex-end;
}

/* ==================
   Formulare
   ================== */

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.form-group .hint {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-weight: normal;
}

.form-group input[type="text"],
.form-group input[type="file"] {
    width: 100%;
    min-height: 44px;
    padding: var(--spacing-sm);
    font-family: inherit;
    font-size: var(--font-size-base);
    border: 2px solid var(--color-border);
    border-radius: 4px;
}

.form-group input:focus {
    border-color: var(--color-focus);
    outline: none;
}

/* ==================
   Fortschrittsbalken
   ================== */

.progress-bar {
    height: 24px;
    background-color: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    margin: var(--spacing-md) 0;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background-color: var(--color-primary);
    transition: width 0.3s ease;
}

/* ==================
   Tastatur-Hilfe
   ================== */

.keyboard-shortcuts {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-sm) var(--spacing-lg);
    margin: var(--spacing-md) 0;
}

.keyboard-shortcuts dt {
    font-family: var(--font-family-mono);
}

.keyboard-shortcuts dd {
    margin: 0;
}

kbd {
    display: inline-block;
    padding: 2px 6px;
    font-family: var(--font-family-mono);
    font-size: 0.875em;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 3px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* ==================
   Utility Classes
   ================== */

.text-success {
    color: var(--color-success);
}

.text-error {
    color: var(--color-error);
}

.text-warning {
    color: var(--color-warning);
}

/* ==================
   Print Styles
   ================== */

@media print {
    .skip-link,
    header nav,
    .chat-section,
    .modal {
        display: none;
    }

    .app-layout {
        display: block;
    }
}

/* ==================
   Reduced Motion
   ==================
   Respektiert Nutzer-Einstellung für reduzierte Bewegung
*/

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

/* ==================
   High Contrast Mode
   ==================
   Unterstützt Windows High Contrast Mode
*/

@media (forced-colors: active) {
    .transcript-word.current,
    .transcript-word.selected {
        outline: 2px solid CanvasText;
    }

    button {
        border: 2px solid ButtonText;
    }
}

/* ==================
   Debug-Panel
   ==================
   Für Entwicklung und Fehleranalyse
*/

.debug-panel {
    position: fixed;
    bottom: 0;
    right: 0;
    width: 500px;
    max-height: 300px;
    background: #1a1a1a;
    color: #00ff00;
    font-family: monospace;
    font-size: 12px;
    padding: var(--spacing-sm);
    border-top-left-radius: 8px;
    z-index: 9999;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.debug-panel h3 {
    margin: 0 0 var(--spacing-sm) 0;
    color: #ffffff;
    font-size: 14px;
}

.debug-panel button {
    background: #333;
    color: #fff;
    border: 1px solid #555;
    padding: 4px 8px;
    margin-right: 8px;
    margin-bottom: 8px;
    cursor: pointer;
    font-size: 11px;
}

.debug-panel button:hover {
    background: #444;
}

#debug-output {
    flex: 1;
    overflow-y: auto;
    margin: 0;
    padding: var(--spacing-sm);
    background: #0a0a0a;
    border-radius: 4px;
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 200px;
}