/* Trenażer Szachowy — style bazowe */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg:         #1a1a2e;
    --surface:    #16213e;
    --surface-2:  #0f3460;
    --accent:     #2d7a3a;
    --accent-h:   #3aa34f;
    --text:       #e0e0e0;
    --text-muted: #9a9a9a;
    --radius:     8px;
    --board-max:  560px;
}

html, body {
    height: 100%;
    font-family: system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

#app {
    min-height: 100%;
    display: flex;
    flex-direction: column;
}

/* Header */
.app-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--surface-2);
    display: flex;
    align-items: baseline;
    gap: 1rem;
}
.app-header h1 { font-size: 1.3rem; color: var(--accent-h); }
.tagline { font-size: 0.85rem; color: var(--text-muted); }

/* Layout */
.game-layout {
    flex: 1;
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    align-items: flex-start;
    flex-wrap: wrap;
}

/* Plansza */
.board-area {
    flex: 0 0 auto;
    width: min(var(--board-max), calc(100vw - 3rem));
}

#board {
    width: 100%;
    /* cm-chessboard ustawia własną wysokość — nie nadpisuj */
}

/* Sidebar */
.sidebar {
    flex: 1;
    min-width: 220px;
    max-width: 320px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.status-box {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 0.9rem 1rem;
    border-left: 3px solid var(--accent);
}
.status-msg {
    font-size: 1.05rem;
    min-height: 1.5em;
}

/* Kontrolki */
.controls {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.controls label {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}
.controls select {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--surface-2);
    border-radius: 4px;
    padding: 0.4rem 0.5rem;
    font-size: 0.95rem;
}
.btn-primary {
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    padding: 0.6rem 1rem;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.15s;
}
.btn-primary:hover { background: var(--accent-h); }

.info-box {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    background: var(--surface);
    border-left: 3px solid var(--text-muted);
}
.info-note {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Responsive: na wąskich ekranach plansza + sidebar w kolumnie */
@media (max-width: 640px) {
    .game-layout { flex-direction: column; padding: 0.75rem; }
    .board-area  { width: 100%; }
    .sidebar     { max-width: 100%; }
}