#game-root {
    --sd-line: #c6d0cb;
    --sd-cell: #fdfefb;
    color: var(--cg-ink);
    font-family: Inter, Arial, sans-serif;
}

.sd-game {
    max-width: 980px;
    margin: 0 auto;
    padding: 2px 0 30px;
}

.sd-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 12px;
}

.sd-stats,
.sd-tools,
.sd-status {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sd-stats {
    flex: 1 1 auto;
    min-width: 0;
}

.sd-stats > div,
.sd-status > div,
.sd-archive-now {
    flex: 1 1 0;
    min-width: 62px;
    padding: 7px 10px;
    border: 1px solid var(--cg-line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.82);
}

.sd-stats span,
.sd-status span,
.sd-archive-now span,
.sd-result span,
.sd-bests span {
    display: block;
    color: var(--cg-muted);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sd-stats strong,
.sd-status strong,
.sd-archive-now strong,
.sd-result strong,
.sd-bests strong {
    display: block;
    margin-top: 1px;
    font-size: 18px;
    line-height: 1.15;
    font-variant-numeric: tabular-nums;
}

.sd-action,
.sd-icon-button,
.sd-share,
.sd-pad-key,
.sd-cell {
    font: inherit;
    color: var(--cg-ink);
    cursor: pointer;
}

.sd-action,
.sd-icon-button,
.sd-share {
    min-height: 44px;
    border: 1px solid var(--cg-line);
    border-radius: 8px;
    background: var(--cg-panel);
    transition: transform 0.12s ease, border-color 0.12s ease, background 0.12s ease;
}

.sd-icon-button {
    width: 44px;
    flex: 0 0 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    font-weight: 900;
}

.sd-action,
.sd-share {
    padding: 0 8px;
    font-weight: 800;
}

.sd-action:disabled,
.sd-share:disabled,
.sd-pad-key:disabled {
    cursor: not-allowed;
    opacity: 0.45;
}

.sd-action:not(:disabled):hover,
.sd-icon-button:hover,
.sd-share:not(:disabled):hover,
.sd-pad-key:not(:disabled):hover {
    transform: translateY(-1px);
    border-color: rgba(49, 95, 157, 0.5);
}

.sd-action:focus-visible,
.sd-icon-button:focus-visible,
.sd-share:focus-visible,
.sd-pad-key:focus-visible,
.sd-cell:focus-visible {
    outline: 3px solid rgba(49, 95, 157, 0.34);
    outline-offset: 2px;
}

.sd-action.sd-is-active {
    border-color: var(--cg-green);
    background: rgba(29, 127, 98, 0.1);
    box-shadow: inset 0 0 0 2px rgba(29, 127, 98, 0.16);
}

.sd-hint {
    border-color: rgba(196, 122, 23, 0.5);
    background: rgba(196, 122, 23, 0.08);
}

.sd-icon {
    width: 22px;
    height: 22px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.sd-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 268px;
    gap: 16px;
    align-items: start;
}

.sd-board-shell {
    min-width: 0;
}

.sd-board-wrap {
    position: relative;
    width: 100%;
    max-width: 700px;
    aspect-ratio: 1;
    margin: 0 auto;
    border-radius: 10px;
    box-shadow: var(--cg-shadow);
}

.sd-board {
    width: 100%;
    height: 100%;
    display: grid;
    grid-template-columns: repeat(9, 1fr);
    grid-template-rows: repeat(9, 1fr);
    border: 3px solid var(--cg-ink);
    border-radius: 10px;
    overflow: hidden;
    background: var(--sd-cell);
}

.sd-cell {
    position: relative;
    min-width: 0;
    min-height: 0;
    padding: 0;
    border: 0;
    border-right: 1px solid var(--sd-line);
    border-bottom: 1px solid var(--sd-line);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--sd-cell);
    transition: background 0.1s ease;
}

.sd-cell.sd-box-top { border-top: 2px solid var(--cg-ink); }
.sd-cell.sd-box-left { border-left: 2px solid var(--cg-ink); }
.sd-cell.sd-box-right { border-right: 0; }
.sd-cell.sd-box-bottom { border-bottom: 0; }

.sd-cell.sd-is-given {
    background: #e3ebe2;
    font-weight: 900;
}

.sd-cell.sd-is-peer { background: #dfecf0; }
.sd-cell.sd-is-match { background: #c8e5d4; }

.sd-cell.sd-is-given.sd-is-peer { background: #d6e3de; }

.sd-cell.sd-is-selected {
    background: #fff2d9;
    box-shadow: inset 0 0 0 3px rgba(196, 122, 23, 0.55);
    z-index: 3;
}

.sd-cell.sd-is-wrong {
    background: #fbe1df;
    animation: sd-shake 0.18s ease;
}

.sd-value {
    font-size: clamp(20px, 5.4vw, 34px);
    line-height: 1;
    transform: translateY(4%);
}

.sd-cell.sd-is-user .sd-value {
    color: var(--cg-blue);
    font-weight: 800;
}

.sd-cell.sd-is-wrong .sd-value { color: var(--cg-red); }
.sd-cell.sd-is-reveal .sd-value { color: var(--cg-green); }

.sd-notes {
    position: absolute;
    left: 8%;
    right: 8%;
    top: 8%;
    bottom: 8%;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    align-items: center;
    justify-items: center;
    color: #5d6b6c;
    font-size: clamp(8px, 1.9vw, 12px);
    font-weight: 800;
    line-height: 1;
}

.sd-archive {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    max-width: 700px;
    margin: 12px auto 0;
}

.sd-archive-now {
    flex: 1 1 140px;
    max-width: 260px;
    text-align: center;
}

.sd-archive-days {
    display: flex;
    flex: 1 1 100%;
    gap: 8px;
}

.sd-chip {
    flex: 1 1 0;
    padding: 0 4px;
    font-variant-numeric: tabular-nums;
}

.sd-side {
    display: grid;
    gap: 10px;
    align-content: start;
}

.sd-pad {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
}

.sd-pad-key {
    min-height: 56px;
    border: 1px solid var(--cg-line);
    border-radius: 8px;
    background: var(--cg-panel);
    transition: transform 0.12s ease, border-color 0.12s ease;
}

.sd-pad-key strong {
    display: block;
    font-size: 24px;
    line-height: 1.1;
}

.sd-pad-key span {
    display: block;
    color: var(--cg-muted);
    font-size: 11px;
    font-weight: 800;
}

.sd-actions,
.sd-tabs,
.sd-modes {
    display: grid;
    gap: 8px;
}

.sd-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.sd-tabs,
.sd-modes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.sd-board-cover {
    position: absolute;
    inset: 0;
    z-index: 6;
    display: grid;
    place-items: center;
    padding: 10px;
    border-radius: 10px;
    background: rgba(246, 247, 242, 0.9);
    backdrop-filter: blur(4px);
    overflow: auto;
}

.sd-board-cover[hidden],
.sd-modal[hidden] {
    display: none;
}

.sd-cover-card {
    width: min(330px, 100%);
    display: grid;
    gap: 8px;
    padding: 14px;
    border: 1px solid var(--cg-line);
    border-radius: 10px;
    background: var(--cg-panel);
    box-shadow: var(--cg-shadow);
    text-align: center;
}

.sd-cover-card > strong { font-size: 23px; }

.sd-cover-card > span {
    color: var(--cg-muted);
    font-weight: 700;
}

.sd-cover-card.sd-is-win { animation: sd-pop 0.24s ease; }

.sd-result {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
    text-align: left;
}

.sd-result > div {
    padding: 6px 7px;
    border: 1px solid var(--cg-line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.75);
}

.sd-result strong { font-size: 16px; }

.sd-verdict {
    margin: 0;
    color: var(--cg-muted);
    font-size: 13px;
    font-weight: 700;
    line-height: 1.4;
}

.sd-hist {
    display: grid;
    gap: 4px;
}

.sd-hist-row {
    display: grid;
    grid-template-columns: 62px minmax(0, 1fr);
    align-items: center;
    gap: 6px;
}

.sd-hist-row span {
    color: var(--cg-muted);
    font-size: 11px;
    font-weight: 800;
    text-align: right;
}

.sd-hist-row b {
    display: block;
    padding: 2px 6px;
    border-radius: 4px;
    background: #d5dedb;
    color: #33474f;
    font-size: 12px;
    font-weight: 900;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.sd-hist-row.sd-is-now b {
    background: var(--cg-green);
    color: #fff;
}

.sd-hist-mini .sd-hist-row { grid-template-columns: 56px minmax(0, 1fr); }

.sd-cover-acts {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
}

.sd-modal {
    position: fixed;
    inset: 0;
    z-index: 40;
    display: grid;
    place-items: center;
    padding: 18px;
    background: rgba(30, 37, 40, 0.4);
}

.sd-modal-panel {
    width: min(440px, 100%);
    max-height: 88vh;
    overflow: auto;
    padding: 18px;
    border: 1px solid var(--cg-line);
    border-radius: 10px;
    background: var(--cg-panel);
    box-shadow: var(--cg-shadow);
}

.sd-modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 6px;
}

.sd-modal-head strong { font-size: 20px; }

.sd-modal-panel p {
    margin: 10px 0 0;
    color: var(--cg-muted);
    line-height: 1.45;
}

.sd-pills {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
    margin: 10px 0;
}

.sd-pill { padding: 0 4px; }

.sd-statbody .sd-result { margin-bottom: 12px; }

.sd-subhead {
    margin: 0 0 6px;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--cg-muted);
}

.sd-statnote {
    margin: 10px 0 0;
    color: var(--cg-muted);
    font-size: 13px;
    line-height: 1.4;
}

.sd-subhead-gap {
    margin-top: 14px;
}

.sd-bests {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 6px;
}

.sd-bests > div {
    padding: 6px 4px;
    border: 1px solid var(--cg-line);
    border-radius: 8px;
    text-align: center;
}

.sd-bests strong { font-size: 14px; }

@keyframes sd-pop {
    0% { transform: scale(0.96); opacity: 0.4; }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes sd-shake {
    0%, 100% { transform: translateX(0); }
    35% { transform: translateX(-2px); }
    70% { transform: translateX(2px); }
}

@media (max-width: 900px) {
    .sd-layout {
        grid-template-columns: minmax(0, 1fr);
    }

    .sd-side {
        width: 100%;
        max-width: 700px;
        margin: 0 auto;
    }

    .sd-pad {
        grid-template-columns: repeat(5, minmax(0, 1fr));
    }

    .sd-actions {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .sd-game {
        padding-bottom: 72px;
    }

    .sd-bar {
        flex-wrap: wrap;
        gap: 8px;
    }

    .sd-stats {
        flex: 1 1 100%;
        order: 2;
    }

    .sd-tools {
        flex: 1 1 100%;
        order: 1;
        justify-content: flex-end;
    }

    .sd-stats > div,
    .sd-status > div,
    .sd-archive-now {
        min-width: 0;
        padding: 6px 7px;
    }

    .sd-stats strong,
    .sd-status strong,
    .sd-archive-now strong {
        font-size: 15px;
    }

    .sd-stats span,
    .sd-status span,
    .sd-archive-now span {
        font-size: 10px;
    }

    .sd-board { border-width: 2px; }

    .sd-pad-key { min-height: 50px; }

    .sd-pad-key strong { font-size: 20px; }

    .sd-action,
    .sd-share {
        padding: 0 4px;
        font-size: 13px;
    }

    .sd-actions {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .sd-result {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .sd-bests {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}