:root {
    --bg: #f5f0e3;
    --panel: #fffdf7;
    --line: #b8aa91;
    --head: #433d34;
    --ink: #312d27;
    --muted: #746b5b;
    --accent: #9a4b32;
    --button: #eee6d6;
    --edit: #c8ddf4;
    --edit-line: #4f7fb8;
    --preview: #f1d890;
    --grid: #f1ebdd;
    --rule: #ddd1b8;
    --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
    color-scheme: light;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: system-ui, -apple-system, "Hiragino Sans", sans-serif;
    font-size: 15px;
}

h1, h2, p {
    margin: 0;
}

h2 {
    font-size: 1.25rem;
}

button {
    font: inherit;
    color: inherit;
    background: var(--button);
    border: 1px solid var(--line);
    padding: 0.35rem 0.8rem;
    cursor: pointer;
}

button:disabled {
    cursor: default;
    opacity: 0.45;
}

button.active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--panel);
}

[hidden] {
    display: none !important;
}

.muted {
    color: var(--muted);
    font-size: 0.9rem;
}

.masthead {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 2rem;
    background: var(--head);
    color: var(--panel);
}

.masthead h1 {
    font-size: 1.4rem;
    letter-spacing: 0.02em;
}

.workspace {
    display: grid;
    gap: 1.5rem;
    padding: 1.5rem 2rem 3rem;
    max-width: 1400px;
}

.toolbar {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.modes {
    display: flex;
    gap: 0.3rem;
}

.mode {
    padding: 0.55rem 1.4rem;
}

.code-page {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

#copy-link {
    margin-right: 0.8rem;
}

.code-page-menu {
    position: absolute;
    top: calc(100% + 0.3rem);
    right: 0;
    z-index: 10;
    display: grid;
    min-width: 18rem;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    box-shadow: 0 6px 16px rgb(49 45 39 / 0.18);
    overflow: hidden;
}

.code-page-menu button {
    display: grid;
    gap: 0.15rem;
    padding: 0.6rem 0.9rem 0.6rem 2rem;
    line-height: 1.5;
    border: 0;
    background: transparent;
    text-align: left;
    position: relative;
}

.code-page-menu button + button {
    border-top: 1px solid var(--rule);
}

.code-page-menu button:hover {
    background: var(--button);
}

.code-page-menu button[aria-checked="true"]::before {
    content: "";
    position: absolute;
    top: calc(0.6rem + 0.75em - 0.25rem);
    left: 0.85rem;
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    background: var(--accent);
}

.code-page-menu .name {
    font-family: var(--mono);
}

.code-page-menu .description {
    color: var(--muted);
    font-size: 0.8rem;
}

.notice {
    padding: 0.7rem 1rem;
    border-left: 4px solid var(--accent);
    background: var(--panel);
}

.section-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 0.6rem;
}

.section-head h2 + .muted {
    flex: 1;
}

/* ---- ソースエディタ ---- */

.editor {
    display: flex;
    border: 1px solid var(--line);
    background: var(--panel);
    height: 12rem;
}

.gutter,
#source {
    margin: 0;
    padding: 0.8rem 0.6rem;
    font-family: var(--mono);
    font-size: 15px;
    line-height: 1.6;
}

.gutter {
    min-width: 3.2rem;
    overflow: hidden;
    text-align: right;
    color: var(--muted);
    background: var(--button);
    user-select: none;
}

#source {
    flex: 1;
    min-width: 0;
    border: 0;
    resize: none;
    outline: none;
    background: transparent;
    color: var(--ink);
    overflow: auto;
    white-space: pre;
}

#source[readonly] {
    color: var(--muted);
    background: repeating-linear-gradient(-45deg, transparent 0 8px, var(--grid) 8px 16px);
}

.lock {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.6rem;
    padding: 0.7rem 1rem;
    border-left: 4px solid var(--accent);
    background: var(--panel);
}

.lock p {
    flex: 1;
    min-width: 16rem;
}

.diagnostics {
    margin: 0.6rem 0 0;
    padding: 0;
    list-style: none;
    color: var(--accent);
}

.diagnostics li + li {
    margin-top: 0.2rem;
}

/* ---- 画像リーダー ---- */

.reader-drop {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    min-height: 7rem;
    border: 2px dashed var(--line);
    border-radius: 10px;
    background: var(--panel);
    color: var(--muted);
    cursor: pointer;
}

.reader-drop.over {
    border-color: var(--accent);
    color: var(--accent);
}

.reader-drop.disabled {
    opacity: 0.5;
    cursor: default;
}

.reader-status {
    min-height: 1.4em;
    margin-top: 0.6rem;
}

/* ---- カード ---- */

.bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem 0.8rem;
}

.bar h2,
.bar h3 {
    margin: 0;
    font-size: 1.1rem;
}

.bar-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-left: auto;
}

.card-panel {
    display: grid;
    grid-template-columns: 12rem minmax(0, 1fr);
    gap: 1.5rem;
}

/* 列の高さはカードの側で決め、カード束はその高さの中でスクロールさせる。 */
.deck-panel {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    min-height: 18rem;
    contain: size;
}

.deck-panel h2 {
    margin: 0;
    font-size: 1.1rem;
}

.card-numbers {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    align-content: start;
    gap: 0.2rem;
    flex: 1;
    min-height: 0;
    margin: 0;
    padding: 0;
    position: relative;
    overflow-y: auto;
    list-style: none;
}

.card-numbers button {
    display: flex;
    gap: 0.6rem;
    width: 100%;
    padding: 0.25rem 0.6rem;
    text-align: left;
}

.card-numbers .number {
    min-width: 1.4rem;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.card-numbers .line {
    min-height: 1.6em;
    min-width: 0;
    overflow: hidden;
    white-space: pre;
    text-overflow: ellipsis;
    font-family: var(--mono);
    font-size: 13px;
    line-height: 1.6;
}

.deck-actions {
    display: grid;
    gap: 0.4rem;
}

.card-main {
    align-self: start;
    min-width: 0;
}

.stale-note {
    display: none;
}

.card-panel.stale .stale-note {
    display: block;
    margin: 0 0 0.6rem;
    color: var(--accent);
}

.card-panel.stale #card-view,
.card-panel.stale .card-numbers {
    opacity: 0.45;
}

.card-area {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 11rem;
    gap: 1.5rem;
    align-items: start;
}

.run-view {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.card-frame,
.column-preview {
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--panel);
    padding: 1rem;
}

.card-frame {
    min-width: 0;
}

.empty-card {
    padding: 3rem 0;
    text-align: center;
    color: var(--muted);
}

.card-scroll {
    overflow-x: auto;
}

.card-svg {
    display: block;
    width: 100%;
    min-width: 760px;
    height: auto;
}

.card-svg .overlay {
    opacity: 0.5;
    pointer-events: none;
}

.card-svg .label {
    fill: var(--muted);
    font-family: var(--mono);
    font-size: 13px;
    text-anchor: end;
    dominant-baseline: central;
}

.card-svg .printed {
    fill: var(--ink);
    font-family: var(--mono);
    font-size: 17px;
    font-weight: 600;
    text-anchor: middle;
}

.card-svg .printed.unprintable {
    fill: var(--accent);
}

.card-svg .band {
    pointer-events: none;
}

.card-svg .band.preview {
    fill: rgb(154 75 50 / 0.1);
    stroke: var(--accent);
    stroke-width: 2;
}

.card-svg .band.edit {
    fill: rgb(79 127 184 / 0.18);
    stroke: var(--edit-line);
    stroke-width: 1;
}

.card-svg .hit {
    fill: transparent;
    pointer-events: all;
}

.card-svg .hit.done {
    cursor: pointer;
}

.card-svg .hit.edit {
    cursor: crosshair;
}

.card-svg .hit.edit:hover {
    fill: rgb(79 127 184 / 0.25);
}

.card-foot {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 0.8rem;
}

.hole-message {
    margin: 0;
    color: var(--muted);
}

/* ---- 列プレビュー ---- */

.preview-head {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}

.preview-head label {
    color: var(--muted);
}

.preview-head input {
    width: 4.2rem;
    margin-left: 0.3rem;
    padding: 0.3rem 0.4rem;
    border: 1px solid var(--line);
    background: var(--button);
    font: inherit;
}

.preview-character {
    margin: 0.6rem 0 1rem;
    min-height: 1.3em;
    font-family: var(--mono);
    font-size: 2.2rem;
}

.preview-character.unprintable {
    color: var(--accent);
    font-size: 1.4rem;
}

.column-preview dl {
    margin: 0;
}

.column-preview dt {
    color: var(--muted);
    font-size: 0.9rem;
}

.column-preview dd {
    margin: 0.3rem 0 0.9rem;
    padding: 0.4rem 0.8rem;
    background: var(--button);
    font-family: var(--mono);
}

/* ---- キーパンチ ---- */

.keypad {
    position: sticky;
    top: 1rem;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--panel);
    padding: 1rem;
}

.keypad .keys {
    display: grid;
    grid-template-columns: repeat(3, 3.2rem);
    gap: 0.5rem 0.9rem;
    justify-content: center;
    margin: 0.8rem 0;
}

.keypad .key {
    width: 3.2rem;
    height: 3.2rem;
    border-radius: 50%;
    border: 3px solid #8d877c;
    background: radial-gradient(circle at 35% 30%, #5b5650, #262320 70%);
    color: #f4efe6;
    font-family: var(--mono);
    font-size: 1.15rem;
    font-weight: 700;
    box-shadow: 0 2px 0 #1b1916, 0 3px 4px rgb(0 0 0 / 0.3);
}

.keypad .key.machine {
    background: radial-gradient(circle at 35% 30%, #f7f3ea, #cfc8ba 70%);
    color: var(--ink);
}

.keypad .key:not(:disabled):active {
    transform: translateY(2px);
    box-shadow: 0 0 0 #1b1916, 0 1px 2px rgb(0 0 0 / 0.3);
}

.keypad .key.hint {
    border-color: var(--preview);
    box-shadow: 0 0 0 3px var(--preview), 0 2px 0 #1b1916;
}

.keypad .key:disabled {
    opacity: 0.35;
}

.keypad p {
    font-size: 0.8rem;
}

/* ---- 実行 ---- */

#run-php {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--panel);
}

.run-status {
    margin: 0;
    color: var(--muted);
}

.run-output {
    flex: 1;
    min-height: 12rem;
    border-radius: 10px;
    margin: 0;
    padding: 0.8rem 1rem;
    overflow: auto;
    border: 1px solid var(--line);
    background: var(--head);
    color: var(--panel);
    font-family: var(--mono);
    font-size: 13px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-all;
}

/* ---- 符号表 ---- */

.chart-area {
    display: grid;
    gap: 1.5rem;
    align-items: start;
}

.chart-area:has(.keypad:not([hidden])) {
    grid-template-columns: minmax(0, 1fr) 16rem;
}

.chart-scroll {
    overflow-x: auto;
}

.chart {
    width: 100%;
    min-width: 40rem;
    table-layout: fixed;
    border-collapse: collapse;
    background: var(--panel);
    font-family: var(--mono);
    font-size: 13px;
}

.chart th,
.chart td {
    height: 1.9rem;
    border: 1px solid var(--rule);
    text-align: center;
}

.chart th {
    color: var(--muted);
    font-weight: normal;
    font-size: 12px;
    white-space: nowrap;
}

.chart td {
    padding: 0;
}

.chart td button {
    width: 100%;
    height: 100%;
    padding: 0;
    border: 0;
    background: transparent;
    font-family: var(--mono);
    font-size: 13px;
}

.chart td button:not(:disabled):hover {
    background: var(--button);
}

.chart td button:disabled {
    opacity: 1;
    color: var(--ink);
}

.chart td.preview {
    background: rgb(154 75 50 / 0.1);
    box-shadow: inset 0 0 0 2px var(--accent);
}

/* ---- ダイアログ ---- */

dialog {
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--panel);
    color: var(--ink);
    padding: 1.5rem;
    min-width: 20rem;
}

dialog::backdrop {
    background: rgb(49 45 39 / 0.4);
}

#confirm-detail {
    margin-top: 0.4rem;
}

.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-top: 1.2rem;
}

@media (max-width: 900px) {
    .workspace {
        padding: 1rem 16px 2rem;
    }

    .masthead {
        padding: 1rem 16px;
    }

    .card-panel,
    .card-area {
        grid-template-columns: minmax(0, 1fr);
    }

    .deck-panel {
        contain: none;
    }
}