/* @import url('https://fonts.googleapis.com/css2?family=Nunito:wght@700;900&display=swap'); */
/* nunito-regular - cyrillic_latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Nunito';
  font-style: normal;
  font-weight: 400;
  src: url('./fonts/nunito-v32-cyrillic_latin-regular.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* nunito-700 - cyrillic_latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Nunito';
  font-style: normal;
  font-weight: 700;
  src: url('./fonts/nunito-v32-cyrillic_latin-700.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* nunito-900 - cyrillic_latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Nunito';
  font-style: normal;
  font-weight: 900;
  src: url('./fonts/nunito-v32-cyrillic_latin-900.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}

:root {
    --bg-color: #f9e8d0;
    --bg-gradient: linear-gradient(180deg, rgba(255, 244, 223, 0.35) 0%, rgba(173, 97, 50, 0.12) 100%);
    --board-bg: #6d3f31;
    --cell-bg: #734737;
    --text-color: #3a2418;
    --panel-bg: rgba(255, 240, 214, 0.74);
    --panel-border: rgba(109, 63, 49, 0.24);
    --wood-shadow: rgba(76, 38, 20, 0.28);

    --color-orange: #f58220;
    --color-blue: #35a0f0;
    --color-green: #66cc33;
    --color-purple: #b042ff;
    --color-yellow: #ffcc00;
    --color-red: #f03030;
}

* {
    box-sizing: border-box;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
}

img {
    -webkit-user-drag: none;
    user-drag: none;
    pointer-events: none;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Nunito', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background:
        linear-gradient(rgba(76, 38, 20, 0.22), rgba(76, 38, 20, 0.22)),
        url('assets/theme/background-room.jpg') center/cover no-repeat fixed;
    background-color: var(--bg-color);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    touch-action: none;
    overscroll-behavior: none;
}

.game-container {
    width: 100%;
    max-width: min(430px, calc(100svh * 0.75 - 165px));
    height: 100%;
    max-height: 932px;
    display: flex;
    flex-direction: column;
    padding: 20px 15px;
    position: relative;
    z-index: 1;
    isolation: isolate;
    overflow: hidden;
    box-shadow: 0 0 40px rgba(74, 39, 19, 0.35);
    border-radius: 35px;
    /* background:
        linear-gradient(180deg, rgba(255, 248, 239, 0.18) 0%, rgba(255, 244, 232, 0.08) 100%),
        linear-gradient(180deg, rgba(159, 105, 67, 0.14) 0%, rgba(94, 55, 37, 0.22) 100%);
    background-color: rgba(249, 232, 208, 0.68); */
    background: url('./assets/theme/background-room.jpg') center / auto 100% no-repeat;
}

.game-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(255, 247, 234, 0.18) 0%, rgba(255, 247, 234, 0.07) 100%);
    z-index: -1;
}

body.low-perf-effects {
    background-attachment: scroll;
}

.header {
    position: relative;
    margin-bottom: 14px;
    padding-top: 26px;
    padding-bottom: 4px;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.header-banner {
    position: absolute;
    top: 10px;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    pointer-events: none;
    z-index: 1; /* Below stats but above background */
}

.header-branch-banner {
    width: 100%;
    height: auto;
    max-width: 460px;
    filter: drop-shadow(0 7px 10px rgba(70, 38, 18, 0.28));
}

body.low-perf-effects .header-branch-banner,
body.low-perf-effects .stat-panel {
    filter: none;
}

.header-branch-banner-state {
    position: absolute;
    left: 50%;
    top: 0;
    transform: translate(-50%, 0);
    width: 100%;
    height: auto;
    max-width: 460px;
    opacity: 0;
    transition: opacity 0.225s ease-in-out;
    pointer-events: none;
    will-change: opacity;
}

.header-branch-banner-state.active {
    opacity: 1;
}

.header-branch-overlay {
    position: absolute;
    left: 50%;
    top: 0;
    transform: translate(-50%, 0);
    pointer-events: none;
    z-index: -1;
}

.header-stats {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 12px;
    margin-top: -28px;
    padding: 0 6px;
    z-index: 3;
    flex-shrink: 0;
}

.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;
}

.settings-btn {
    width: 64px;
    height: 64px;
    background: url('assets/theme/settings-gear.png') center/contain no-repeat;
    border: none;
    padding: 0;
    border-radius: 0;
    display: block;
    box-shadow: none;
    cursor: pointer;
    z-index: 4;
    appearance: none;
    -webkit-appearance: none;
    transition: transform 0.12s ease, filter 0.12s ease;
    position: absolute;
    top: 8px;
    left: 8px;
    right: auto;
    filter: drop-shadow(0 3px 4px rgba(60, 26, 8, 0.45));
}

.settings-btn:active {
    transform: translateY(2px) scale(0.96);
    filter: drop-shadow(0 1px 2px rgba(60, 26, 8, 0.45));
}

.stat-panel {
    position: relative;
    flex: 0 1 auto;
    min-width: 130px;
    padding-top: 14px;
    filter: drop-shadow(0 6px 10px rgba(74, 39, 19, 0.32));
}

.stat-panel-ribbon {
    position: absolute;
    top: 0;
    left: 12px;
    background: linear-gradient(180deg, #fff7e2 0%, #ffe1ad 100%);
    color: #6b3a18;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.06em;
    padding: 3px 12px 4px;
    border-radius: 4px 4px 6px 6px;
    box-shadow: inset 0 -2px 0 rgba(170, 100, 40, 0.28), 0 2px 4px rgba(74, 39, 19, 0.25);
    text-transform: uppercase;
    border: 1.5px solid #b87534;
    z-index: 2;
}

.stat-panel-ribbon::before,
.stat-panel-ribbon::after {
    content: '';
    position: absolute;
    bottom: -6px;
    width: 0;
    height: 0;
    border: 6px solid transparent;
}
.stat-panel-ribbon::before {
    left: -1px;
    border-top-color: #b87534;
    border-right: none;
}
.stat-panel-ribbon::after {
    right: -1px;
    border-top-color: #b87534;
    border-left: none;
}

.stat-panel-ribbon-inline {
    position: static;
    top: auto;
    left: auto;
    display: inline-flex;
    align-items: center;
    z-index: auto;
}

.stat-panel-body {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px 10px;
    border-radius: 14px;
    background: linear-gradient(180deg, #c98856 0%, #a06334 100%);
    border: 2px solid #7a3f1d;
    box-shadow: inset 0 2px 0 rgba(255, 220, 180, 0.45), inset 0 -4px 6px rgba(50, 22, 8, 0.35), 0 4px 0 #7a3f1d;
    min-height: 38px;
    color: #fff;
    font-weight: 900;
    font-size: 20px;
    text-shadow: 0 2px 0 rgba(60, 24, 8, 0.55);
}

.score-panel {
    min-width: 150px;
}

.score-panel-body {
    background: linear-gradient(180deg, #4cb6f0 0%, #2e8ac7 100%);
    border-color: #1c5d8a;
    box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.55), inset 0 -4px 6px rgba(8, 38, 64, 0.4), 0 4px 0 #1c5d8a;
    justify-content: center;
    color: #fff;
    font-size: 22px;
    letter-spacing: 0.02em;
}

.crystal-panel {
    min-width: 0;
    padding-top: 0;
    filter: none;
    display: flex;
    align-items: center;
}

.crystal-panel-body {
    background: linear-gradient(180deg, #f6d6a3 0%, #dfb177 100%);
    border: 2px solid #9b6134;
    box-shadow: inset 0 2px 0 rgba(255, 245, 225, 0.55), inset 0 -3px 5px rgba(120, 69, 30, 0.2), 0 3px 0 #8a542d, 0 5px 10px rgba(74, 39, 19, 0.2);
    padding: 8px 12px;
    justify-content: center;
    min-height: 40px;
    text-shadow: none;
    border-radius: 12px;
}

.crystal-panel-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    line-height: 1;
}

.crystal-panel-text > #crystals-label {
    background: none;
    border: none;
    box-shadow: none;
    padding: 0;
    margin: 0 0 2px;
    color: #5b311d;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-shadow: none;
}

.crystal-panel-text > #crystals-label::before,
.crystal-panel-text > #crystals-label::after {
    display: none;
}

.crystal-panel-text > span:last-child {
    font-size: 22px;
    font-weight: 900;
    color: #5b311d;
    text-shadow: none;
}

.board-container {
    background: repeating-linear-gradient(135deg, #fff2e3 0 12px, #f48e73 12px 24px);
    border-radius: 24px;
    padding: 12px;
    box-shadow: 0 14px 28px rgba(115, 61, 36, 0.25), 0 4px 12px rgba(255, 255, 255, 0.2);
    margin-bottom: 20px;
    position: relative;
    z-index: 2;
}

.board-container::after {
    content: '';
    position: absolute;
    inset: 12px;
    border-radius: 16px;
    background: linear-gradient(180deg, rgba(255, 247, 234, 0.18) 0%, rgba(255, 247, 234, 0.08) 100%);
    box-shadow: inset 0 0 0 1px rgba(255, 247, 234, 0.12);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.35s ease;
    z-index: 2;
}

.board-container,
.tray,
.header-banner,
.header-stats {
    transition: filter 0.8s ease, opacity 0.8s ease, transform 0.8s ease;
}

.board {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    grid-template-rows: repeat(8, 1fr);
    gap: 0;
    aspect-ratio: 1 / 1;
    width: 100%;
    background: linear-gradient(180deg, #4a2718 0%, #3a1d11 100%);
    padding: 0;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: inset 0 2px 0 rgba(255, 225, 198, 0.12), inset 0 6px 10px rgba(20, 8, 4, 0.45), inset 0 -2px 4px rgba(34, 14, 8, 0.28);
}

.splash-overlay:not(.hidden) ~ .game-container .board-container::after {
    opacity: 1;
}

.cell {
    background: url('assets/theme/back_tile.png') center/100% 100% no-repeat;
    background-color: #5e3722;
    border-radius: 0;
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.cell.preview {
    border-radius: 8px;
    opacity: 0.7; /* Make it partially transparent to show the color underneath */
    z-index: 32;
    position: relative;
}

/* WebGL-канвас Pixi-рендера игрового поля (перекрывает .board внутри .board-container).
   Точная позиция/размер задаются из JS (pixiRenderer.layout). z-index 3 — выше рамки доски
   и ::after-подсветки (z2), но ниже combo-text (z1000) и попапов счёта. */
.pixi-board-canvas {
    display: block;
    pointer-events: none;
}

/* Canvas для частиц */
.particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 15;
    /* Убедиться, что canvas не влияет на размеры родителя */
    display: block;
}

.game-state-overlay {
    position: absolute;
    inset: 0;
    z-index: 2400;
    opacity: 0;
    pointer-events: none;
    background: linear-gradient(180deg, rgba(9, 11, 24, 0.08) 0%, rgba(9, 11, 24, 0.76) 100%);
    transition: opacity 0.8s ease;
}

.game-container.game-over-transition .game-state-overlay {
    opacity: 1;
}

.game-container.game-over-transition .board-container,
.game-container.game-over-transition .tray,
.game-container.game-over-transition .header-banner,
.game-container.game-over-transition .header-stats {
    filter: grayscale(1) saturate(0.2) brightness(0.76);
    opacity: 0.62;
    transform: scale(0.985);
}

body.low-perf-effects .game-container.game-over-transition .board-container,
body.low-perf-effects .game-container.game-over-transition .tray,
body.low-perf-effects .game-container.game-over-transition .header-banner,
body.low-perf-effects .game-container.game-over-transition .header-stats {
    filter: none;
    opacity: 0.72;
    transform: none;
}

.cell.line-highlight {
    border-radius: 0;
    position: relative;
    z-index: 34;
}

.cell.line-highlight::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: var(--line-preview-color, transparent);
    pointer-events: none;
    z-index: 35;
}

/* When a cell is both preview and line-highlight, prioritize line highlight appearance */
.cell.preview.line-highlight {
    opacity: 1;
    z-index: 33;
}

/* Базовый класс для всех блоков */
.block-item {
    width: 100%;
    height: 100%;
    border-radius: 18%;
    position: relative;
    z-index: 30;
    animation: popIn 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    background-color: transparent;
    background-repeat: no-repeat;
    background-position: center;
    background-size: 128% 128%;
    filter: drop-shadow(0 4px 6px rgba(74, 39, 19, 0.25));
}

body.low-perf-effects .block-item,
body.low-perf-effects .block-color-yellow {
    filter: none;
}

body.low-perf-effects .block-item:not(.no-pop) {
    animation-duration: 0.12s;
}

.block-item.no-pop {
    animation: none;
}

.block-color-purple {
    background-image: url('assets/theme/block-purple-v2.png');
}

.block-color-orange {
    background-image: url('assets/theme/block-orange-v2.png');
}

.block-color-blue {
    background-image: url('assets/theme/block-blue-v2.png');
}

.block-color-green {
    background-image: url('assets/theme/block-green-v2.png');
}

.block-color-yellow {
    background-image: url('assets/theme/block-yellow-v2.png');
    filter: hue-rotate(-24deg) saturate(1.15) brightness(1.08) drop-shadow(0 4px 6px rgba(74, 39, 19, 0.25));
}

.block-color-red {
    background-image: url('assets/theme/block-red-v2.png');
}

@keyframes popIn {
    0% {
        transform: scale(0.5);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.tray {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 20px;
    flex-shrink: 0;
}

.tray-slot {
    flex: 1;
    aspect-ratio: 1 / 1;
    min-width: 0;
    min-height: 0;
    background: linear-gradient(180deg, rgba(122, 76, 55, 0.92) 0%, rgba(95, 55, 38, 0.92) 100%);
    border: 1px solid rgba(255, 228, 196, 0.3);
    border-radius: 18px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 3px 8px rgba(255, 238, 217, 0.08), 0 8px 14px rgba(79, 41, 20, 0.2);
    z-index: 20;
}

.tray-slot > .tray-shape {
    position: absolute;
    inset: 0;
    margin: auto;
}

.tray-slot .block-item {
    background-size: 116% 116%;
}

.shape {
    display: grid;
    gap: 3px;
    pointer-events: none;
    z-index: 25;
    position: relative;
}

.shape .block {
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 1;
}

.shape .block.empty {
    visibility: hidden;
}

/* ОПТИМИЗАЦИЯ: drag на transform/translate3d */
.drag-clone {
    position: fixed;
    z-index: 1000;
    pointer-events: none;
    left: 0;
    top: 0;
    transform: translate3d(0, 0, 0);
    will-change: transform;
}

/* Клон движется каждый кадр. drop-shadow на его блоках заставляет GPU
   ре-растеризовать фильтр на каждый кадр перетаскивания (главная причина
   просадок при драге). Тень у летящего клона незаметна — убираем её.
   Для жёлтого сохраняем только цветокоррекцию (без дорогой drop-shadow). */
.drag-clone .block-item {
    filter: none;
}
.drag-clone .block-color-yellow {
    filter: hue-rotate(-24deg) saturate(1.15) brightness(1.08);
}

.btn {
    flex: 1;
    padding: 12px 0;
    border-radius: 25px;
    border: none;
    font-family: 'Nunito', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-weight: 700;
    font-size: 14px;
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    box-shadow: 0 5px 0 rgba(0, 0, 0, 0.15), inset 0 2px 4px rgba(255, 255, 255, 0.3);
    transition: transform 0.1s, box-shadow 0.1s;
}

.btn:active {
    transform: translateY(3px);
    box-shadow: 0 2px 0 rgba(0, 0, 0, 0.15), inset 0 2px 4px rgba(255, 255, 255, 0.3);
}

.btn-yellow { background: #fbbf24; box-shadow: 0 5px 0 #d97706; color: #854d0e; }
.btn-yellow:active { box-shadow: 0 2px 0 #d97706; }

.btn-outline { background: transparent; border: 2px solid rgba(255, 255, 255, 0.5); color: white; box-shadow: none; }
.btn-outline:active { background: rgba(255, 255, 255, 0.1); transform: translateY(2px); box-shadow: none; }

.clearing {
    animation: blast 0.3s forwards;
    z-index: 10;
    /* Блок исчезает с масштабированием (blast). Масштаб + drop-shadow = ре-растеризация
       фильтра на каждый кадр — на пропадающем блоке тень не нужна. */
    filter: none;
}

/* ОПТИМИЗАЦИЯ: убран filter: brightness */
@keyframes blast {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.85; }
    100% { transform: scale(0); opacity: 0; }
}

.combo-text {
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 32px;
    font-weight: 900;
    color: #fbbf24;
    -webkit-text-stroke: 1px #fff;
    text-shadow: 0 4px 6px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}

.combo-text.combo-visible {
    opacity: 1;
    transform: translate(-50%, -50%);
}

.combo-text.combo-pop {
    animation: popCombo 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.combo-text.fade-out {
    opacity: 0 !important;
    transform: translate(-50%, -80%) scale(0.8) !important;
}

body.low-perf-effects .combo-text {
    text-shadow: none;
    transition-duration: 0.22s;
}

body.low-perf-effects .combo-text.combo-pop {
    animation: popComboLite 0.18s ease-out forwards;
}

@keyframes popCombo {
    0% { transform: translate(-50%, -30%) scale(0.5); opacity: 0; }
    50% { transform: translate(-50%, -50%) scale(1.3); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

@keyframes popComboLite {
    0% { transform: translate(-50%, -42%) scale(0.86); opacity: 0; }
    100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

.modal-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(7, 10, 22, 0.42);
    z-index: 3200;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.modal-overlay.show {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
}

.settings-modal {
    width: min(100%, 360px);
    background: rgba(255, 255, 255, 0.96);
    border-radius: 24px;
    padding: 22px;
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.28);
    transform: translateY(18px) scale(0.96);
    transition: transform 0.25s ease;
}

.modal-overlay.show .settings-modal {
    transform: translateY(0) scale(1);
}

.settings-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 18px;
}

.settings-modal-header h2 {
    margin: 0;
    font-size: 28px;
    color: #1f2937;
}

.settings-close-btn {
    width: 42px;
    height: 42px;
    border: none;
    border-radius: 50%;
    background: rgba(148, 163, 184, 0.18);
    color: #334155;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.settings-close-btn:active {
    transform: scale(0.95);
}

.settings-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 0 4px;
    color: #111827;
    font-weight: 800;
}

.settings-option-copy {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.settings-option-status {
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #64748b;
}

.toggle-switch {
    position: relative;
    display: inline-flex;
    width: 62px;
    height: 36px;
    flex: 0 0 auto;
}

.toggle-switch input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    margin: 0;
}

.toggle-slider {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 999px;
    background: #cbd5e1;
    box-shadow: inset 0 2px 5px rgba(15, 23, 42, 0.16);
    transition: background 0.25s ease;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    top: 4px;
    left: 4px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 3px 10px rgba(15, 23, 42, 0.22);
    transition: transform 0.25s ease;
}

.toggle-switch input:checked + .toggle-slider {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(26px);
}

.toggle-switch input:focus-visible + .toggle-slider {
    outline: 3px solid rgba(96, 165, 250, 0.55);
    outline-offset: 3px;
}

#game-over, #second-chance-modal {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(5, 8, 18, 0.1) 0%, rgba(5, 8, 18, 0.58) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 3000;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateY(18px) scale(0.96);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

#game-over.show, #second-chance-modal.show {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) scale(1);
}

#game-over h2, #second-chance-modal h2 {
    color: white;
    font-size: 40px;
    margin-bottom: 10px;
    text-align: center;
}

#second-chance-modal p {
    color: white;
    font-size: 20px;
    margin-bottom: 24px;
    text-align: center;
    padding: 0 20px;
}

.reward-shapes-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    min-height: 80px;
}

.reward-shape-slot {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
}

.game-over-stats {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 0 0 24px;
    text-align: center;
    color: white;
}

.game-over-stats strong {
    font-size: 30px;
    color: #facc15;
}

.restart-btn {
    flex: none;
    padding: 20px 70px;
    font-size: 20px;
    border-radius: 30px;
    height: auto;
}

.second-chance-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    max-width: 280px;
}

.second-chance-btn {
    flex: none;
    padding: 16px 20px;
    font-size: 18px;
    border-radius: 25px;
    height: auto;
    width: 100%;
}

.score-popup {
    position: absolute;
    font-size: 36px;
    font-weight: 900;
    color: #fff;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    pointer-events: none;
    z-index: 2000;
    animation: scoreFloat 1s cubic-bezier(0.18, 0.89, 0.32, 1.28) forwards;
    /* Композитим scale/translate анимацию в отдельном слое, чтобы текст с тенью
       не переотрисовывался на каждом кадре. */
    will-change: transform, opacity;
}

body.low-perf-effects .score-popup {
    text-shadow: none;
    animation-duration: 0.65s;
}

@keyframes scoreFloat {
    0% { transform: translate(-50%, -50%) scale(0.5); opacity: 0; }
    30% { transform: translate(-50%, -100%) scale(1.2); opacity: 1; }
    100% { transform: translate(-50%, -180%) scale(1); opacity: 0; }
}

.praise-popup {
    position: absolute;
    font-size: 32px;
    font-weight: 900;
    color: #fbbf24;
    -webkit-text-stroke: 1.5px #fff;
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.6);
    pointer-events: none;
    z-index: 2001;
    animation: praisePop 1.2s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    /* Композитим scale/rotate анимацию в отдельном слое: текст с обводкой и тенью
       растеризуется один раз, а не на каждом кадре анимации «плашки хваления». */
    will-change: transform, opacity;
}

body.low-perf-effects .praise-popup {
    -webkit-text-stroke: 0;
    text-shadow: none;
    animation-duration: 0.8s;
}

@keyframes praisePop {
    0% { transform: translate(-50%, -50%) scale(0); opacity: 0; rotate: -10deg; }
    20% { transform: translate(-50%, -120%) scale(1.4); opacity: 1; rotate: 5deg; }
    40% { transform: translate(-50%, -120%) scale(1.2); opacity: 1; rotate: -5deg; }
    100% { transform: translate(-50%, -250%) scale(1); opacity: 0; rotate: 0deg; }
}

@media (max-width: 430px) {
    body {
        height: 100svh;
    }
    .game-container {
        border-radius: 0;
        box-shadow: none;
        max-height: 100svh;
    }
    .header-stats {
        justify-content: space-between;
    }
    .crystal-panel {
        display: flex;
    }
    .score-panel, .stat-panel {
        min-width: 110px;
    }
}

@media (min-aspect-ratio: 1 / 1) {
    body {
        padding: 12px 0;
    }
    .game-container {
        width: min(100%, 430px, calc(100svh * 0.75 - 110px));
        max-height: 780px;
        padding: 10px 12px 12px;
    }
    .header {
        min-height: 138px;
        margin-bottom: 10px;
        padding-top: 34px;
    }
    .header-banner {
        /* height and absolute positioning */
    }
    .header-stats {
        margin-top: -22px;
    }
    .stat-panel-body {
        font-size: 18px;
        padding: 8px 12px;
        min-height: 32px;
    }
    .crystal-panel-text > span:last-child,
    .score-panel-body {
        font-size: 18px;
    }
    .board-container,
    .tray {
        margin-bottom: 10px;
    }
    .btn {
        padding: 14px 25px;
        font-size: 18px;
        gap: 4px;
    }
}

@media (max-height: 750px) {
    .game-container {
        padding: 8px 12px;
        max-width: min(430px, calc(100svh * 0.75 - 110px));
    }
    .header {
        min-height: 138px;
        margin-bottom: 8px;
        padding-top: 10px;
    }
    .header-banner {
        /* height and absolute positioning */
    }
    .header-stats {
        margin-top: -22px;
    }
    .stat-panel-body {
        font-size: 16px;
        padding: 6px 10px;
        min-height: 30px;
    }
    .stat-panel-ribbon {
        font-size: 10px;
        padding: 2px 8px 3px;
    }
    .crystal-panel {
        display: none;
    }

    .crystal-panel-text > span:last-child,
    .score-panel-body {
        font-size: 16px;
    }
    .settings-btn {
        width: 54px;
        height: 54px;
    }
    .board-container,
    .tray {
        margin-bottom: 10px;
    }
    .btn {
        padding: 14px 25px;
        font-size: 18px;
    }
}

@media (orientation: landscape) {
    .settings-btn {
        left: 8px;
        right: auto;
    }
}

.splash-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: 2;
    font-family: 'Nunito', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.splash-overlay.hidden {
    display: none;
}

.splash-content {
    position: fixed;
    inset: 0;
    pointer-events: none;
}

.splash-play-btn {
    position: fixed;
    background: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
    color: white;
    border: none;
    padding: 16px 48px;
    font-size: 18px;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3), inset 0 -2px 0 rgba(0, 0, 0, 0.2);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), background 0.3s ease, box-shadow 0.3s ease;
    font-family: 'Nunito', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
    pointer-events: auto;
    z-index: 1;
    transform: translate(-50%, -50%);
    /* Hidden by default via the inline `display:none` in index.html so the button is
       never visible or clickable before game.js runs. game.js reveals it via
       setSplashPlayEnabled(true) only after LoadingAPI.ready() fires (requirement 1.19). */
}

.splash-play-btn:active {
    transform: scale(0.95);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3), inset 0 -1px 0 rgba(0, 0, 0, 0.2);
}

.splash-play-btn:hover {
    background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
}

@media (max-height: 620px) {
    body {
        height: 100svh;
    }
    .game-container {
        width: 100%;
        max-width: min(380px, calc(100svh * 0.75 - 65px));
        max-height: 100svh;
        padding: 5px 10px;
    }
    .header {
        min-height: 96px;
        margin-bottom: 5px;
        padding-top: 6px;
    }
    .header-banner {
        /* height and absolute positioning */
    }
    .header-stats {
        margin-top: -18px;
        justify-content: space-between;
    }
    .crystal-panel {
        display: none;
    }
    .score-panel {
        min-width: 100px;
    }
    .stat-panel {
        min-width: 100px;
    }
    .stat-panel-body {
        font-size: 14px;
        padding: 5px 8px;
        min-height: 26px;
    }
    .stat-panel-ribbon {
        font-size: 9px;
        padding: 2px 6px;
    }
    .crystal-panel-text > span:last-child,
    .score-panel-body {
        font-size: 14px;
    }
    .settings-btn {
        width: 44px;
        height: 44px;
        top: 4px;
    }
    .tray,
    .board-container {
        margin-bottom: 4px;
    }
    .btn {
        padding: 16px 13px;
        font-size: 18px;
        gap: 3px;
    }
}

@media (orientation: landscape) and (max-height: 620px) {
    :root {
        --landscape-body-pad: clamp(8px, 1.25vw, 14px);
        --landscape-container-pad-y: clamp(10px, 1.8vh, 18px);
        --landscape-container-pad-x: clamp(12px, 1.5vw, 20px);
        --landscape-column-gap: clamp(12px, 1.8vw, 24px);
        --landscape-board-pad: clamp(10px, 1.8vh, 14px);
        --landscape-left-rail: clamp(150px, 16vw, 190px);
        --landscape-right-rail: clamp(92px, 11vw, 124px);
    }

    body {
        height: 100svh;
        padding: var(--landscape-body-pad);
        align-items: center;
        justify-content: center;
    }

    .game-container {
        width: min(100%, 1400px);
        max-width: none;
        height: calc(100svh - (var(--landscape-body-pad) * 2));
        max-height: none;
        min-height: 0;
        display: grid;
        grid-template-columns: var(--landscape-left-rail) minmax(0, 1fr) var(--landscape-right-rail);
        grid-template-rows: 1fr;
        align-items: stretch;
        column-gap: var(--landscape-column-gap);
        padding: var(--landscape-container-pad-y) var(--landscape-container-pad-x);
        background-size: cover;
        border-radius: 28px;
    }

    .header {
        grid-column: 1;
        grid-row: 1;
        position: static;
        min-height: 0;
        height: 100%;
        margin-bottom: 0;
        padding: clamp(38px, 9vh, 68px) 0 0;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: clamp(12px, 2vh, 18px);
    }

    .header-banner {
        position: relative;
        top: auto;
        left: auto;
        width: min(148%, 300px);
        aspect-ratio: 886 / 296;
        margin-left: clamp(-38px, -3vw, -14px);
        display: block;
        pointer-events: none;
    }

    .header-branch-banner,
    .header-branch-banner-state {
        width: 100%;
        max-width: none;
    }

    .header-branch-banner-state {
        left: 0;
        top: 0;
        transform: none;
    }

    .settings-btn {
        top: clamp(6px, 1.2vh, 12px);
        left: clamp(6px, 1vw, 12px);
        right: auto;
        width: clamp(46px, 5.5vw, 62px);
        height: clamp(46px, 5.5vw, 62px);
    }

    .header-stats {
        margin-top: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: clamp(12px, 2vh, 18px);
    }

    .stat-panel,
    .score-panel,
    .crystal-panel {
        width: 100%;
        min-width: 0;
    }

    .crystal-panel {
        display: flex;
    }

    .stat-panel {
        padding-top: 12px;
    }

    .stat-panel-ribbon {
        left: 10px;
        font-size: clamp(9px, 1.4vh, 11px);
    }

    .stat-panel-body {
        width: 100%;
        min-height: 0;
        justify-content: center;
        padding: clamp(7px, 1.5vh, 10px) clamp(10px, 1.2vw, 14px);
        font-size: clamp(16px, 2.4vh, 20px);
    }

    .score-panel-body,
    .crystal-panel-text > span:last-child {
        font-size: clamp(18px, 2.7vh, 22px);
    }

    .crystal-panel-body {
        padding: clamp(7px, 1.4vh, 10px) clamp(10px, 1vw, 12px);
    }

    .crystal-panel-text > #crystals-label {
        font-size: clamp(9px, 1.3vh, 11px);
    }

    .board-container {
        grid-column: 2;
        grid-row: 1;
        align-self: center;
        justify-self: center;
        margin-bottom: 0;
        padding: var(--landscape-board-pad);
        width: min(
            100%,
            calc(
                100svh
                - (var(--landscape-body-pad) * 2)
                - (var(--landscape-container-pad-y) * 2)
                - (var(--landscape-board-pad) * 2)
            )
        );
    }

    .board-container::after {
        inset: var(--landscape-board-pad);
    }

    .tray {
        grid-column: 3;
        grid-row: 1;
        height: 100%;
        margin-bottom: 0;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        justify-content: center;
        gap: clamp(12px, 2vh, 18px);
    }

    .tray-slot {
        flex: 0 0 auto;
        width: 100%;
    }
}