/* Coop Sudoku Premium Styling System */

:root {
    --bg-dark: #0f172a;
    --bg-card: rgba(15, 23, 42, 0.65);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-thick: rgba(255, 255, 255, 0.25);

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    /* Vibrant accent colors */
    --accent: #6366f1;
    /* Indigo */
    --accent-hover: #4f46e5;
    --accent-glow: rgba(99, 102, 241, 0.3);

    --success: #10b981;
    /* Emerald */
    --danger: #ef4444;
    /* Red */
    --warning: #f59e0b;
    /* Amber */

    /* Sudoku Board States */
    --cell-bg: rgba(30, 41, 59, 0.35);
    --cell-clue-bg: rgba(15, 23, 42, 0.4);
    --cell-text-clue: #94a3b8;
    --cell-text-user: #38bdf8;
    /* Sky Blue */
    --cell-hover: rgba(99, 102, 241, 0.1);
    --cell-selected: rgba(99, 102, 241, 0.2);
    --cell-highlight-match: rgba(99, 102, 241, 0.15);
    --cell-highlight-axis: rgba(255, 255, 255, 0.02);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', sans-serif;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
    padding: 1rem;
}

/* Background Grids and Blobs */
.bg-grid {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 24px 24px;
    pointer-events: none;
    z-index: 0;
}

.bg-blur-indigo {
    position: absolute;
    top: 15%;
    left: 10%;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    filter: blur(50px);
    pointer-events: none;
    z-index: 0;
}

.bg-blur-violet {
    position: absolute;
    bottom: 15%;
    right: 10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.12) 0%, transparent 70%);
    filter: blur(60px);
    pointer-events: none;
    z-index: 0;
}

/* Container Structure */
.app-container {
    width: 100%;
    max-width: 1100px;
    z-index: 1;
}

/* Card glassmorphism style */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
    padding: 2.5rem;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.card.hidden {
    display: none !important;
}

/* Divider styling */
.divider {
    border: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: 1.5rem 0;
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-full {
    width: 100%;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.07);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
    transform: translateY(-1px);
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 10px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--text-primary);
    transform: scale(1.05);
}

/* LOBBY SCREEN */
#lobby-screen {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
}

.logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    filter: drop-shadow(0 0 8px var(--accent-glow));
}

#lobby-screen h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #fff 40%, var(--accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 2rem;
}

.form-group {
    text-align: left;
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.6rem;
}

.form-group input[type="text"],
.select-input {
    width: 100%;
    padding: 0.85rem 1rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    color: #fff;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
}

.form-group input[type="text"]:focus,
.select-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.color-picker-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 0.5rem;
}

.color-btn {
    aspect-ratio: 1/1;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    transition: all 0.25s ease;
}

.color-btn:hover {
    transform: scale(1.15);
}

.color-btn.selected {
    border-color: #fff;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.25);
    transform: scale(1.1);
}

.actions-stack {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.join-section {
    display: flex;
    flex-direction: column;
}

.join-input-wrapper {
    display: flex;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 3px;
    transition: focus-within 0.3s ease;
}

.join-input-wrapper:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.join-input-wrapper input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    padding: 0 1rem;
    color: #fff;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-size: 1.1rem;
}

.join-input-wrapper input::placeholder {
    font-weight: 500;
    letter-spacing: 0;
    text-transform: none;
    color: var(--text-muted);
}

.error-banner {
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    padding: 0.8rem 1rem;
    border-radius: 10px;
    margin-top: 1rem;
    font-size: 0.88rem;
    font-weight: 500;
}

.error-banner.hidden {
    display: none;
}

/* GAME SCREEN */
#game-screen {
    padding: 1rem;
}

.game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-small {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    color: #fff;
}

.logo-small svg {
    color: var(--accent);
}

.badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

#room-badge {
    color: #f8fafc;
}

#copy-code-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 2px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

#copy-code-btn:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.difficulty-badge {
    text-transform: capitalize;
    color: var(--accent);
    border-color: rgba(99, 102, 241, 0.2);
    background: rgba(99, 102, 241, 0.1);
}

/* GAME LAYOUT */
.game-layout {
    display: grid;
    grid-template-columns: 200px 1fr 200px;
    gap: 1.5rem;
}

/* PANELS */
.players-panel,
.controls-panel {
    background: rgba(15, 23, 42, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 16px;
    padding: 1.25rem;
}

.players-panel h3,
.controls-panel h3 {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.players-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.player-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.02);
    font-size: 0.88rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.player-color-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.player-name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.player-role-badge {
    font-size: 0.65rem;
    background: rgba(245, 158, 11, 0.15);
    color: #fcd34d;
    padding: 1px 5px;
    border-radius: 4px;
    font-weight: 700;
}

.control-actions-stack {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.host-section h4 {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.host-section .form-group {
    margin-bottom: 1rem;
}

/* SUDOKU BOARD */
.board-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    margin: 0 auto;
    width: 100%;
}

.sudoku-grid {
    display: grid;
    grid-template-columns: repeat(9, 1fr);
    grid-template-rows: repeat(9, 1fr);
    width: 100%;
    max-width: 450px;
    aspect-ratio: 1 / 1;
    background: rgba(15, 23, 42, 0.6);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.cell {
    position: relative;
    aspect-ratio: 1/1;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--cell-bg);
    border: 0.5px solid var(--border-color);
    font-family: 'Outfit', sans-serif;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--cell-text-user);
    cursor: pointer;
    user-select: none;
    transition: background-color 0.15s ease, box-shadow 0.15s ease;
}

/* Border thicknesses for 3x3 subdivisions */
.border-right {
    border-right: 2px solid var(--border-thick);
}

.border-bottom {
    border-bottom: 2px solid var(--border-thick);
}

/* Cell sub-states */
.cell-clue {
    background-color: var(--cell-clue-bg);
    color: var(--cell-text-clue);
    cursor: not-allowed;
}

/* Axis highlighting helper classes */
.cell-axis {
    background-color: var(--cell-highlight-axis);
}

.cell:hover:not(.cell-clue) {
    background-color: var(--cell-hover);
}

.cell-selected {
    background-color: var(--cell-selected) !important;
    box-shadow: inset 0 0 0 1.5px var(--accent);
}

.cell-match-val {
    background-color: var(--cell-highlight-match);
}

.cell-error {
    color: var(--danger) !important;
    animation: shake 0.35s ease;
}

/* Remote Player Cursors */
.cell-peer-cursor {
    box-shadow: inset 0 0 0 2px var(--peer-color) !important;
}

.peer-tag {
    position: absolute;
    bottom: calc(100% + 4px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--peer-color);
    color: #fff;
    font-size: 0.6rem;
    padding: 1px 5px;
    border-radius: 4px;
    pointer-events: none;
    z-index: 10;
    white-space: nowrap;
    font-weight: 700;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity 0.25s ease;
}

.cell-peer-cursor:hover .peer-tag,
.cell-peer-cursor.peer-tag-active .peer-tag {
    opacity: 1;
}

/* NOTES / PENCIL MARKS GRID */
.notes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    width: 100%;
    height: 100%;
    padding: 3px;
    box-sizing: border-box;
}

.note-item {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

/* KEYPAD & KEYBOARD */
.board-controls {
    width: 100%;
    max-width: 450px;
}

.keypad {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0.4rem;
}

.keypad-btn {
    aspect-ratio: 1.1/1;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.keypad-btn:hover {
    background: rgba(255, 255, 255, 0.09);
    border-color: rgba(255, 255, 255, 0.1);
    transform: scale(1.03);
}

.keypad-btn:active {
    transform: scale(0.97);
}

.keypad-btn.action-key {
    grid-column: span 1;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.keypad-btn.action-key svg {
    margin-bottom: 2px;
}

.key-label {
    font-size: 0.6rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

#pencil-btn.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
    box-shadow: 0 4px 10px var(--accent-glow);
}

/* MODAL OVERLAY */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.modal-overlay.hidden {
    display: none !important;
}

.modal-card {
    background: #1e293b;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    padding: 2.5rem;
    width: 90%;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: popIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.win-sparkle {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: bounce 1.5s infinite;
}

.modal-card h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.modal-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* TOAST NOTIFICATIONS */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 200;
}

.toast {
    background: rgba(30, 41, 59, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    color: var(--text-primary);
    padding: 0.75rem 1.25rem;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transform: translateY(20px);
    opacity: 0;
    animation: toastIn 0.3s forwards, toastOut 0.3s 2.7s forwards;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.toast-success {
    border-left: 3px solid var(--success);
}

.toast-info {
    border-left: 3px solid var(--accent);
}

/* RESPONSIVE LAYOUTS */
@media (max-width: 900px) {
    body {
        padding: 0.5rem;
    }

    .game-layout {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .players-panel,
    .controls-panel {
        order: 2;
    }

    .board-container {
        order: 1;
    }
}

@media (max-width: 480px) {
    body {
        padding: 0.25rem;
    }

    #game-screen.card {
        background: transparent;
        border: none;
        box-shadow: none;
        padding: 0.25rem 0;
    }

    .game-header {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
        padding-bottom: 0.75rem;
        margin-bottom: 1rem;
    }

    .header-right {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .sudoku-grid {
        width: 100%;
        max-width: min(480px, 90vw);
        height: auto;
        aspect-ratio: 1 / 1;
        border-radius: 12px;
        border: 2px solid rgba(255, 255, 255, 0.2);
    }

    .board-controls {
        width: 100%;
        max-width: min(480px, 100vw);
    }

    .keypad-btn {
        font-size: 1.1rem;
        border-radius: 10px;
    }

    .cell {
        font-size: 1.35rem;
    }

    .note-item {
        font-size: 0.55rem;
    }

    .players-panel,
    .controls-panel {
        background: rgba(15, 23, 42, 0.45);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 16px;
        padding: 1rem 0.75rem;
    }
}

/* SCORING & LEADERBOARD UI ELEMENTS */
.player-score {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--cell-text-user);
    background: rgba(56, 189, 248, 0.1);
    padding: 2px 6px;
    border-radius: 6px;
    margin-left: auto;
}

.leaderboard-section {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 1rem;
    margin: 1.25rem 0;
    text-align: left;
}

.leaderboard-section h3 {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
    text-align: center;
}

.final-leaderboard {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.leaderboard-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.02);
    font-size: 0.88rem;
    font-weight: 600;
}

.leaderboard-row.gold {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.25);
    color: #fcd34d;
}

.leaderboard-rank {
    font-weight: 800;
    margin-right: 0.5rem;
}

.leaderboard-score {
    color: var(--cell-text-user);
}

.leaderboard-row.gold .leaderboard-score {
    color: #fcd34d;
}

/* ANIMATIONS & RESPONSIVE KEYFRAMES */
@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    20%,
    60% {
        transform: translateX(-4px);
    }

    40%,
    80% {
        transform: translateX(4px);
    }
}

@keyframes popIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes toastIn {
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes toastOut {
    to {
        transform: translateY(-20px);
        opacity: 0;
    }
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-8px);
    }
}

/* EMOJI REACTION BAR */
.emoji-reactions {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 0.5rem;
    width: 100%;
}

.emoji-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    padding: 0.25rem 0.5rem;
    border-radius: 8px;
}

.emoji-btn:hover {
    transform: scale(1.3) translateY(-4px);
    background: rgba(255, 255, 255, 0.05);
}

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

/* FLOATING EMOJIS */
.floating-emoji {
    position: absolute;
    pointer-events: none;
    font-size: 2rem;
    z-index: 9999;
    animation: floatUpAndFade 1.2s cubic-bezier(0.18, 0.89, 0.32, 1.28) forwards;
    transform: translate(-50%, -50%);
}

@keyframes floatUpAndFade {
    0% {
        transform: translate(-50%, 0) scale(0.5);
        opacity: 0;
    }
    15% {
        transform: translate(-50%, -20px) scale(1.2);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -80px) scale(1);
        opacity: 0;
    }
}

/* OFFLINE PLAYERS STYLE */
.player-item.player-offline {
    opacity: 0.45;
}

.player-item.player-offline .player-name {
    text-decoration: line-through;
    text-decoration-thickness: 1px;
}

/* Touch action optimizations to prevent double-tap zoom */
button, .cell, .sudoku-grid, .keypad-btn, .emoji-btn, select {
    touch-action: manipulation;
}

/* User-placed numbers style */
.cell-user-placed {
    color: var(--user-color);
}