:root {
    color-scheme: dark;
    --bg: #171610;
    --surface: #23231d;
    --surface-2: #2d2d26;
    --line: #4d4a3d;
    --text: #ede8d6;
    --muted: #b6b09a;
    --accent: #9db37a;
    --accent-strong: #cbb46f;
    --danger: #d27866;
    --felt: #315247;
    --felt-2: #27453c;
    --manzu: #cf8d72;
    --pinzu: #87b0cf;
    --souzu: #8fbea0;
    --jihai: #d6c98a;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 18%),
        var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
}

body {
    min-height: 100vh;
}

#app {
    min-height: 100vh;
}

.shell {
    min-height: 100vh;
    display: grid;
    grid-template-rows: auto 1fr;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--line);
    background: rgba(23, 22, 16, 0.92);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 10;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-mark {
    display: grid;
    grid-auto-flow: column;
    gap: 4px;
}

.brand-tile {
    width: 28px;
    aspect-ratio: 2 / 3;
    border: 1px solid rgba(0, 0, 0, 0.25);
    border-radius: 6px;
    background: linear-gradient(180deg, #fffef8, #ded7c3);
    color: #1b1a17;
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 14px;
}

.brand-copy h1 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
}

.brand-copy p {
    margin: 2px 0 0;
    color: var(--muted);
    font-size: 13px;
}

.topbar-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.meta-chip {
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 6px 10px;
    font-size: 12px;
    color: var(--muted);
    background: rgba(255, 255, 255, 0.03);
}

.meta-chip strong {
    color: var(--text);
}

.meta-chip.status-connected strong {
    color: var(--accent);
}

.meta-chip.status-disconnected strong {
    color: var(--danger);
}

.layout {
    display: grid;
    grid-template-columns: 256px minmax(0, 1fr) 296px;
    gap: 0;
    min-height: 0;
}

.rail,
.side {
    border-right: 1px solid var(--line);
    background: var(--surface);
}

.side {
    border-right: 0;
    border-left: 1px solid var(--line);
}

.panel {
    padding: 14px;
    border-bottom: 1px solid var(--line);
}

.panel h2,
.panel h3 {
    margin: 0 0 12px;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
}

.stack {
    display: grid;
    gap: 10px;
}

.kv {
    display: grid;
    gap: 4px;
}

.kv-label {
    font-size: 12px;
    color: var(--muted);
}

.kv-value {
    font-size: 14px;
}

.main {
    display: grid;
    grid-template-rows: 1fr auto;
    min-height: 0;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent),
        var(--felt-2);
}

.table-wrap {
    padding: 14px;
    min-height: 0;
    display: grid;
}

.table-surface {
    border: 1px solid rgba(0, 0, 0, 0.28);
    border-radius: 8px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 25%),
        var(--felt);
    padding: 16px;
    display: grid;
    grid-template-rows: auto auto auto 1fr;
    gap: 12px;
    min-height: 0;
}

.seat-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.seat-strip {
    min-height: 80px;
    border: 1px solid rgba(0, 0, 0, 0.22);
    border-radius: 6px;
    padding: 10px;
    background: rgba(15, 18, 16, 0.25);
    display: grid;
    gap: 4px;
}

.seat-strip.is-self {
    border-color: rgba(203, 180, 111, 0.7);
    background: rgba(42, 35, 18, 0.28);
}

.seat-title {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    align-items: baseline;
    font-size: 14px;
}

.seat-state {
    color: var(--muted);
    font-size: 12px;
}

.center-band {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 12px;
    align-items: start;
}

.board-meta,
.board-status {
    border: 1px solid rgba(0, 0, 0, 0.22);
    border-radius: 6px;
    padding: 12px;
    background: rgba(15, 18, 16, 0.28);
}

.meta-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 14px;
}

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

.river {
    min-height: 108px;
    border: 1px solid rgba(0, 0, 0, 0.22);
    border-radius: 6px;
    padding: 8px;
    background: rgba(15, 18, 16, 0.22);
    display: grid;
    grid-template-rows: auto 1fr;
    gap: 6px;
}

.river-tiles,
.meld-list,
.tile-row,
.concealed-row,
.dora-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: flex-start;
}

.concealed-row {
    gap: 3px;
    min-height: 28px;
}

.meld-list {
    gap: 6px;
}

.tile-face,
.tile-button {
    width: 42px;
    height: 58px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 0;
    border-radius: 6px;
    background: none;
    flex: 0 0 auto;
}

.tile-face img,
.tile-button img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 2px 2px rgba(0, 0, 0, 0.3));
}

.tile-face.is-empty {
    min-width: 42px;
    width: auto;
    padding: 0 10px;
    border: 1px dashed rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.08);
    color: var(--muted);
    font-size: 12px;
    white-space: nowrap;
}

.tile-button {
    cursor: pointer;
}

.tile-button img {
    transition: transform 120ms ease;
}

.tile-button:hover img {
    transform: translateY(-2px);
}

.tile-row {
    gap: 4px;
    min-height: 66px;
}

.tile-row .tile-face,
.tile-row .tile-button {
    width: 46px;
    height: 66px;
}

.river-tiles .tile-face,
.river-tiles .tile-button,
.meld-list .tile-face,
.meld-list .tile-button,
.dora-strip .tile-face,
.dora-strip .tile-button {
    width: 34px;
    height: 48px;
}

.concealed-row .tile-face,
.concealed-row .tile-button {
    width: 19px;
    height: 28px;
}

.concealed-row .tile-face.is-empty {
    min-width: 48px;
    height: 28px;
    padding: 0 8px;
}

.meld-group {
    display: inline-flex;
    align-items: flex-end;
    gap: 4px;
    padding: 8px 6px 6px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.04);
    overflow: visible;
}

.meld-group.is-ankan {
    gap: 3px;
}

.meld-group.is-kakan {
    padding-top: 20px;
}

.meld-group .tile-face.is-facedown img,
.meld-group .tile-button.is-facedown img {
    filter: drop-shadow(0 2px 2px rgba(0, 0, 0, 0.22));
}

.meld-group .tile-face.is-rotated,
.meld-group .tile-button.is-rotated {
    width: 48px;
    height: 34px;
    align-self: flex-end;
}

.meld-group .tile-face.is-rotated img,
.meld-group .tile-button.is-rotated img {
    width: 34px;
    height: 48px;
    transform: rotate(90deg);
    transform-origin: center;
}

.meld-group .tile-button.is-rotated:hover img {
    transform: translateY(-2px) rotate(90deg);
}

.meld-group.claim-center .tile-face.is-rotated,
.meld-group.claim-center .tile-button.is-rotated {
    margin-inline: 2px;
}

.meld-stack {
    position: relative;
    display: inline-flex;
    align-items: flex-end;
    justify-content: center;
    width: 48px;
    height: 68px;
    flex: 0 0 48px;
}

.meld-stack-base,
.meld-stack-overlay {
    position: absolute;
    left: 0;
    right: 0;
    display: inline-flex;
    justify-content: center;
}

.meld-stack-base {
    bottom: 0;
    z-index: 1;
}

.meld-stack-overlay {
    top: 0;
    z-index: 2;
}

.meld-stack-overlay .tile-face,
.meld-stack-overlay .tile-button {
    width: 34px;
    height: 48px;
}

.dora-strip {
    min-height: 48px;
}

.seat-placeholder {
    color: var(--muted);
    font-size: 12px;
    align-self: center;
}

.hand-band {
    border-top: 1px solid var(--line);
    background: rgba(20, 20, 17, 0.88);
    padding: 14px 16px 16px;
    display: grid;
    gap: 8px;
}

.hand-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
}

.hand-caption {
    color: var(--muted);
    font-size: 13px;
}

.side .panel:last-child,
.rail .panel:last-child {
    border-bottom: 0;
}

.seat-list {
    display: grid;
    gap: 8px;
}

.event-list,
.action-list {
    display: grid;
    gap: 6px;
}

.event-list {
    max-height: 240px;
    overflow: auto;
}

.seat-pill,
.event-item {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.03);
}

.event-item {
    font-size: 13px;
    color: var(--muted);
}

.event-item strong {
    color: var(--text);
}

.button-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

button.command {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 8px 10px;
    background: var(--surface-2);
    color: var(--text);
    font: inherit;
    cursor: pointer;
}

button.command:hover {
    border-color: var(--accent-strong);
}

button.command.primary {
    background: #40543b;
    border-color: #627958;
}

button.command.warn {
    background: #5a3d34;
    border-color: #8a5b4b;
}

.message-box {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.03);
    color: var(--muted);
    font-size: 13px;
    white-space: pre-wrap;
}

.debug {
    margin: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #171814;
    color: #d5d0c0;
    font-size: 12px;
    overflow: auto;
    max-height: 280px;
}

@media (max-width: 1080px) {
    .topbar {
        flex-wrap: wrap;
        align-items: flex-start;
        gap: 12px;
        padding: 12px 14px;
    }

    .brand {
        gap: 10px;
    }

    .brand-mark {
        gap: 3px;
    }

    .brand-tile {
        width: 26px;
        border-radius: 5px;
        font-size: 13px;
    }

    .brand-copy h1 {
        font-size: 16px;
    }

    .brand-copy p {
        font-size: 12px;
        line-height: 1.45;
    }

    .topbar-meta {
        width: 100%;
        justify-content: flex-start;
        gap: 8px;
    }

    .meta-chip {
        padding: 5px 9px;
        font-size: 11px;
    }

    .layout {
        grid-template-columns: 1fr;
        grid-auto-rows: auto;
    }

    .rail,
    .side {
        border-right: 0;
        border-left: 0;
        border-bottom: 1px solid var(--line);
    }

    .main {
        order: -1;
        grid-template-rows: auto auto;
    }

    .side {
        order: 1;
        display: flex;
        flex-direction: column;
    }

    .rail {
        order: 2;
    }

    .side .panel:nth-child(2) {
        order: -1;
    }

    .center-band,
    .river-grid,
    .seat-row {
        grid-template-columns: 1fr;
    }

    .panel,
    .table-wrap {
        padding: 12px;
    }

    .table-surface {
        padding: 12px;
        gap: 10px;
        border-radius: 7px;
    }

    .seat-strip,
    .board-meta,
    .board-status,
    .river {
        padding: 9px;
        border-radius: 5px;
    }

    .seat-strip {
        min-height: auto;
        gap: 3px;
    }

    .seat-title {
        font-size: 13px;
    }

    .meta-grid {
        gap: 8px 10px;
    }

    .river {
        min-height: 76px;
    }

    .river-tiles,
    .meld-list,
    .dora-strip {
        flex-wrap: nowrap;
        overflow-x: auto;
        overflow-y: hidden;
        padding-bottom: 2px;
    }

    .concealed-row {
        min-height: 26px;
    }

    .tile-row {
        gap: 3px;
        min-height: 60px;
    }

    .tile-row .tile-face,
    .tile-row .tile-button {
        width: 42px;
        height: 60px;
    }

    .concealed-row .tile-face,
    .concealed-row .tile-button {
        width: 17px;
        height: 26px;
    }

    .concealed-row .tile-face.is-empty {
        min-width: 44px;
        height: 26px;
    }

    .hand-band {
        padding: 12px 14px 14px;
        gap: 6px;
    }

    .hand-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .hand-caption,
    .message-box {
        font-size: 12px;
    }

    .button-row {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
    }

    button.command {
        min-height: 40px;
    }

    .event-list {
        max-height: 180px;
    }

    .debug {
        max-height: 180px;
        font-size: 11px;
    }

    .kv-value {
        word-break: break-word;
    }
}