/**
 * css/viz-playground.css
 *
 * Gemeinsame Styles für Visualisierungs-Playgrounds
 * (minimax-viz, knights-tour-viz, rotatebox-viz).
 *
 * Struktur: nav-header → viz-toolbar → split-container
 *   (tree-pane + board-pane mit board-card)
 *
 * Benötigt: tokens.css, style.css, responsive.css
 * Vor: viewport-full.css laden
 *
 * @version 1.0
 */

/* =========================================
   1. NAV HEADER
   ========================================= */

.nav-header {
    background: var(--color-sidebar-header, #2c3e50);
    color: white;
    padding: 0 var(--space-lg, 1.5rem);
    display: flex;
    align-items: center;
    gap: var(--space-lg, 1.5rem);
    height: 50px;
    flex-shrink: 0;
}

.nav-header h1 {
    margin: 0;
    font-size: var(--font-size-lg, 1.2rem);
    font-weight: normal;
}

/* =========================================
   2. VIZ TOOLBAR (weiß, unterhalb nav-header)
   ========================================= */

.viz-toolbar {
    background: var(--color-surface, #ffffff);
    color: var(--color-text, #2c3e50);
    padding: var(--space-sm, 0.5rem) var(--space-lg, 1.5rem);
    border-bottom: 1px solid var(--color-border, #ddd);
    display: flex;
    gap: var(--space-lg, 1.5rem);
    align-items: center;
    flex-wrap: wrap;
    flex-shrink: 0;
    justify-content: space-between;
}

.toolbar-group {
    display: flex;
    align-items: center;
    gap: var(--space-sm, 0.5rem);
}

.viz-toggle {
    transform: scale(1.1);
    cursor: pointer;
}

/* =========================================
   3. SPLIT VIEW (tree + board)
   ========================================= */

.split-container {
    flex: 1;
    display: flex;
    min-height: 0;
}

.tree-pane {
    flex: 1;
    border-right: 1px solid var(--color-border, #bdc3c7);
    background: var(--color-surface, #ffffff);
    position: relative;
}

.board-pane {
    width: 500px;
    background: var(--color-bg, #ecf0f1);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    overflow-y: auto;
    align-items: center;
    padding: var(--space-lg, 1.5rem);
}

#vizFrame {
    width: 100%;
    height: 100%;
    border: none;
}

/* =========================================
   4. BOARD CARD (im board-pane)
   ========================================= */

.board-card {
    background: var(--color-surface, #ffffff);
    padding: var(--space-lg, 1.5rem);
    border-radius: var(--border-radius-lg, 8px);
    box-shadow: 0 4px 15px var(--color-shadow, rgba(0, 0, 0, 0.1));
    display: flex;
    flex-direction: column;
    gap: var(--space-md, 1rem);
    width: 100%;
    max-width: 460px;
    box-sizing: border-box;
}

.board-card h3 {
    margin: 0;
    text-align: center;
    color: var(--color-text, #2c3e50);
}

.board-container {
    width: 100%;
    aspect-ratio: 1;
    position: relative;
}

.board-card canvas {
    width: 100%;
    height: 100%;
    display: block;
    border-radius: var(--border-radius, 4px);
    cursor: pointer;
}

/* =========================================
   5. BOARD CONTROLS & INFO
   ========================================= */

.board-controls,
.game-controls {
    display: flex;
    gap: var(--space-sm, 0.5rem);
    justify-content: center;
    margin-top: var(--space-sm, 0.5rem);
}

.board-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm, 0.5rem);
    font-size: var(--font-size-base, 0.95rem);
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-xs, 0.25rem) 0;
    border-bottom: 1px solid var(--color-border-light, #ecf0f1);
}

.info-label {
    font-weight: 600;
    color: var(--color-text-muted, #7f8c8d);
}

.info-value {
    color: var(--color-text, #2c3e50);
    font-family: var(--font-mono, 'Courier New', monospace);
}

.stats-panel {
    margin-top: var(--space-sm, 0.5rem);
    font-size: var(--font-size-sm, 0.9rem);
    color: var(--color-text-muted, #7f8c8d);
    text-align: center;
    padding: var(--space-sm, 0.5rem);
    background: var(--color-bg, #f8f9fa);
    border-radius: var(--border-radius, 4px);
}

/* =========================================
   6. EXTRA BUTTON VARIANTS
   ========================================= */

.btn-primary {
    background: var(--color-primary, #3498db);
    color: white;
}
.btn-primary:hover { background: #2980b9; }

.btn-secondary {
    background: #95a5a6;
    color: white;
}
.btn-secondary:hover { background: #7f8c8d; }

/* =========================================
   7. TOGGLE CONTROLS
   ========================================= */

.toggle-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: var(--font-size-sm, 0.9rem);
    margin-bottom: 5px;
    cursor: pointer;
    color: var(--color-text, #2c3e50);
}

/* =========================================
   8. RESPONSIVE
   ========================================= */

@media (max-width: 1024px) {
    .board-pane {
        width: 380px;
    }
}

@media (max-width: 768px) {
    .split-container {
        flex-direction: column;
    }

    .tree-pane {
        border-right: none;
        border-bottom: 1px solid var(--color-border, #bdc3c7);
    }

    .board-pane {
        width: 100%;
        max-height: 40vh;
        border-top: 1px solid var(--color-border, #ddd);
    }

    .toolbar-group {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .nav-header {
        padding: 0 var(--space-sm, 0.5rem);
        gap: var(--space-sm, 0.5rem);
    }

    .nav-header h1 {
        font-size: var(--font-size-sm, 0.85rem);
    }

    .viz-toolbar {
        padding: var(--space-xs, 0.25rem);
        gap: var(--space-xs, 0.25rem);
    }

    .board-pane {
        padding: var(--space-sm, 0.5rem);
    }
}