:root {
    --bg-main: #141311;
    --bg-panel: #201f1c;
    --bg-accent: #3d78b2;
    --text-main: #b5b3ae;
    --text-light: #ffffff;
    --border-color: #33312d;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border-color);
    padding: 10px 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.brand {
    font-size: 19px;
    font-weight: 700;
    color: var(--text-light);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: 0.5px;
}

.rook-logo {
    display: block;
}

nav {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.nav-btn {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 6px 13px;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    font-size: 13px;
    transition: 0.15s;
}

.nav-btn:hover, .nav-btn.active {
    background: var(--bg-accent);
    color: #fff;
    border-color: var(--bg-accent);
}

.user-pill {
    background: #181715;
    border: 1px solid var(--border-color);
    color: #fff;
    font-size: 13px;
    padding: 6px 10px;
    border-radius: 4px;
}

.lang-switch a {
    color: var(--text-main);
    text-decoration: none;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    border: 1px solid transparent;
}

.lang-switch a.active {
    border-color: var(--bg-accent);
    color: #fff;
    font-weight: bold;
}

.container {
    max-width: 1440px;
    width: 100%;
    margin: 14px auto;
    padding: 0 16px;
    flex: 1;
}

/* РЕЖИМ ФОКУСУВАННЯ ПІД ЧАС АКТИВНОЇ ПАРТІЇ */
body.game-focus-mode #mainSiteHeader,
body.game-focus-mode .lobby-only-block {
    display: none !important;
}

body.game-focus-mode .container {
    max-width: 100vw;
    height: 100vh;
    margin: 0;
    padding: 10px 16px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    overflow: hidden;
}

body.game-focus-mode .game-grid {
    width: 100%;
    height: 96vh;
    grid-template-columns: 280px 1fr 290px;
    gap: 14px;
    align-items: start;
}

/* Сітка гри: чітке вирівнювання по верхньому краю без порожнечі */
.game-grid {
    display: grid;
    grid-template-columns: 310px 1fr 310px;
    gap: 16px;
    align-items: start;
}

.two-col-grid {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 20px;
    align-items: start;
}

.auth-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 820px;
    margin: 0 auto;
}

.panel {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 14px;
    margin-bottom: 12px;
}

.panel h3 {
    color: var(--text-light);
    margin-bottom: 10px;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 6px;
}

.form-group {
    margin-bottom: 10px;
}

.form-group label {
    display: block;
    margin-bottom: 4px;
    font-size: 12px;
}

.form-control {
    width: 100%;
    padding: 8px 10px;
    background: #161513;
    border: 1px solid var(--border-color);
    color: #fff;
    border-radius: 4px;
    font-size: 13px;
}

.btn {
    width: 100%;
    padding: 9px 12px;
    background: var(--bg-accent);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    transition: 0.15s;
}

.btn:hover {
    filter: brightness(1.1);
}

.btn-secondary {
    background: #33312d;
}

.btn-danger {
    background: #9e2a2b;
}

.controls-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    margin-top: 10px;
}

.cookie-retention-note {
    margin-top: 10px;
    padding: 8px;
    background: #161513;
    border-left: 3px solid var(--bg-accent);
    font-size: 11px;
    color: #999;
    line-height: 1.4;
}

/* Шахова арена — вирівняна зверху без пустого простору */
#gameArena {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    align-self: start;
    width: 100%;
}

.free-board-toolbar {
    width: 100%;
    max-width: 82vh;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #161513;
    border: 1px solid var(--border-color);
    padding: 7px 12px;
    border-radius: 4px;
    margin-bottom: 10px;
    gap: 8px;
    flex-wrap: wrap;
}

.free-board-label {
    font-size: 13px;
    color: #d0ceca;
    font-weight: 600;
}

.board-with-eval {
    display: flex;
    gap: 8px;
    align-items: stretch;
    justify-content: center;
    width: 100%;
}

/* Розмір дошки адаптується під висоту екрана на ПК */
#myBoard {
    width: min(80vh, 100%);
    max-width: 80vh;
    aspect-ratio: 1 / 1;
}

body.game-focus-mode #myBoard {
    width: min(91vh, calc(100vw - 620px));
    max-width: 91vh;
}

#gameArena:fullscreen {
    background: #11100e;
    justify-content: center;
    padding: 16px;
}

#gameArena:fullscreen #myBoard {
    width: 90vh;
    max-width: 90vh;
}

.eval-bar-container {
    width: 12px;
    background: #161513;
    border: 1px solid var(--border-color);
    border-radius: 2px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.eval-bar-white {
    width: 100%;
    background: #dcdad5;
    transition: height 0.3s ease;
}

/* Картки гравців збоку від дошки */
.player-side-card {
    background: #161513;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 8px 10px;
    margin-bottom: 8px;
}

.player-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.player-name {
    font-weight: 600;
    color: #fff;
    font-size: 14px;
}

.clock {
    font-family: 'Courier New', Courier, monospace;
    font-size: 19px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 3px;
    background: #252320;
    color: #bababa;
    border: 1px solid transparent;
}

.clock.active-clock {
    background: #1f2428;
    color: #fff;
    border-color: var(--bg-accent);
}

.status-banner-flat {
    padding: 9px;
    background: #161513;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: #fff;
    font-weight: 600;
    font-size: 13px;
    margin-bottom: 10px;
    text-align: center;
}

.opening-name-banner {
    background: #161513;
    border: 1px solid var(--border-color);
    color: #9e9b95;
    font-size: 12px;
    padding: 5px 8px;
    border-radius: 4px;
    margin-bottom: 8px;
    min-height: 26px;
    display: flex;
    align-items: center;
}

/* Побиті фігури з групуванням (Цифра - Фігура) */
.captured-panel {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 24px;
}

.captured-pieces {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
}

.cap-group-badge {
    display: inline-flex;
    align-items: center;
    background: #252320;
    border: 1px solid #383530;
    padding: 1px 5px;
    border-radius: 3px;
    font-size: 13px;
    color: #e0deda;
}

.cap-count {
    font-size: 11px;
    font-weight: 700;
    color: #9e9b95;
    margin-right: 2px;
}

.material-advantage {
    font-size: 12px;
    font-weight: 700;
    color: #888;
}

.material-advantage.positive {
    color: #d4d2cd;
}

/* 4 Теми шахівниці */
.theme-classic .white-1e1d7 { background-color: #d8c8b0 !important; color: #8c7355 !important; }
.theme-classic .black-3c85d { background-color: #8c7355 !important; color: #d8c8b0 !important; }

.theme-green .white-1e1d7 { background-color: #e2e4d5 !important; color: #677d52 !important; }
.theme-green .black-3c85d { background-color: #677d52 !important; color: #e2e4d5 !important; }

.theme-blue .white-1e1d7 { background-color: #d5dce0 !important; color: #536d7e !important; }
.theme-blue .black-3c85d { background-color: #536d7e !important; color: #d5dce0 !important; }

.theme-dark .white-1e1d7 { background-color: #969696 !important; color: #3d3d3d !important; }
.theme-dark .black-3c85d { background-color: #3d3d3d !important; color: #969696 !important; }

.highlight-hint {
    box-shadow: inset 0 0 0 3px rgba(220, 220, 220, 0.75);
}

.highlight-selected-sq {
    box-shadow: inset 0 0 0 3px rgba(61, 120, 178, 0.95) !important;
}

.highlight-last-move {
    box-shadow: inset 0 0 0 3px rgba(100, 160, 210, 0.7) !important;
}

.highlight-king-check {
    box-shadow: inset 0 0 0 4px rgba(210, 60, 60, 0.9) !important;
}

/* Нотація ходів */
.moves-box {
    height: 220px;
    overflow-y: auto;
    background: #161513;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 6px;
}

.moves-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.moves-table td {
    padding: 4px 6px;
    border-bottom: 1px solid #24221f;
}

.move-cell {
    cursor: pointer;
    border-radius: 3px;
    color: #d0ceca;
}

.move-cell:hover {
    background: #2e2c28;
}

.move-cell.selected-move {
    background: var(--bg-accent);
    color: #fff;
    font-weight: bold;
}

.capture-mark {
    color: #d9534f;
    font-weight: bold;
}

.history-nav-bar {
    display: flex;
    gap: 4px;
    margin-top: 6px;
}

.history-nav-btn {
    flex: 1;
    background: #2b2926;
    color: #fff;
    border: 1px solid var(--border-color);
    padding: 5px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 12px;
    font-weight: bold;
}

.history-nav-btn:hover {
    background: var(--bg-accent);
}

.code-badge {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #161513;
    border: 1px solid var(--bg-accent);
    padding: 6px 10px;
    border-radius: 4px;
    margin-bottom: 10px;
    color: #fff;
    font-size: 15px;
    font-weight: bold;
}

/* Швидкий чат */
.chat-log-box {
    height: 110px;
    overflow-y: auto;
    background: #161513;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 6px 8px;
    margin-bottom: 8px;
    font-size: 12px;
}

.chat-msg-line {
    margin-bottom: 4px;
    line-height: 1.35;
}

.chat-msg-author {
    font-weight: 700;
    color: #fff;
    margin-right: 4px;
}

.quick-emojis-row {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 4px;
    margin-bottom: 6px;
}

.chat-quick-btn {
    background: #161513;
    border: 1px solid var(--border-color);
    color: #fff;
    padding: 5px 0;
    border-radius: 3px;
    cursor: pointer;
    font-size: 14px;
}

.chat-quick-btn:hover {
    background: var(--bg-accent);
}

.quick-phrases-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
}

.chat-phrase-btn {
    background: #2b2926;
    border: 1px solid var(--border-color);
    color: #d0ceca;
    padding: 5px 6px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 11px;
    text-align: center;
}

.chat-phrase-btn:hover {
    background: var(--bg-accent);
    color: #fff;
}

/* Оверлей результату партії */
#resultOverlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(12, 12, 11, 0.85);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
}

#resultCanvas {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.result-modal-box {
    position: relative;
    z-index: 2;
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    padding: 28px 36px;
    border-radius: 6px;
    text-align: center;
    min-width: 300px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.7);
}

.result-symbol {
    font-size: 54px;
    color: #fff;
    margin-bottom: 8px;
    display: inline-block;
    transition: transform 0.6s ease;
}

.result-symbol.defeat-fall {
    transform: rotate(90deg);
    color: #9e2a2b;
}

#resultMainTitle {
    color: #fff;
    font-size: 24px;
    letter-spacing: 2px;
    margin-bottom: 6px;
}

#resultSubReason {
    color: #999;
    font-size: 13px;
}

/* Модальне вікно перетворення пішака */
#promoModal {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.75);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.promo-card {
    background: var(--bg-panel);
    padding: 20px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.promo-pieces {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 14px;
}

.promo-btn {
    background: #161513;
    border: 1px solid var(--border-color);
    padding: 10px 16px;
    border-radius: 4px;
    color: #fff;
    font-size: 26px;
    cursor: pointer;
}

table.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

table.data-table th, table.data-table td {
    padding: 9px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    font-size: 13px;
}

table.data-table th {
    color: #fff;
    background: #161513;
}

@media (max-width: 1024px) {
    body.game-focus-mode .container {
        height: auto;
        overflow: visible;
        padding: 6px;
    }
    .game-grid,
    body.game-focus-mode .game-grid,
    .two-col-grid,
    .auth-grid {
        grid-template-columns: 1fr;
        height: auto;
    }
    #gameArena {
        order: -1;
        padding: 6px;
    }
    #myBoard,
    body.game-focus-mode #myBoard {
        width: calc(100vw - 44px);
        max-width: 94vw;
    }
}
/* Червоний таймер коли мало часу (< 30 секунд) */
.clock.low-time-clock {
    background: #8b1e1e !important;
    color: #ffffff !important;
    border-color: #ff4d4d !important;
    animation: lowTimePulse 0.85s infinite alternate;
}

@keyframes lowTimePulse {
    0% {
        box-shadow: 0 0 0px rgba(255, 77, 77, 0);
        transform: scale(1);
    }
    100% {
        box-shadow: 0 0 10px rgba(255, 77, 77, 0.75);
        transform: scale(1.03);
    }
}