@font-face {
    font-family: "NEXON Lv2 Gothic";
    src: url("/fonts/NEXONLv2Gothic-Regular.otf") format("opentype");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
    /* Hangul + Latin only. NEXON's partial Hanja set otherwise steals CJK glyphs. */
    unicode-range: U+0000-024F, U+1100-11FF, U+2000-206F, U+20A0-20CF, U+3130-318F, U+A960-A97F, U+AC00-D7FF;
}
@font-face {
    font-family: "NEXON Lv2 Gothic";
    src: url("/fonts/NEXONLv2Gothic-Medium.otf") format("opentype");
    font-weight: 500;
    font-style: normal;
    font-display: swap;
    unicode-range: U+0000-024F, U+1100-11FF, U+2000-206F, U+20A0-20CF, U+3130-318F, U+A960-A97F, U+AC00-D7FF;
}
@font-face {
    font-family: "NEXON Lv2 Gothic";
    src: url("/fonts/NEXONLv2Gothic-Bold.otf") format("opentype");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
    unicode-range: U+0000-024F, U+1100-11FF, U+2000-206F, U+20A0-20CF, U+3130-318F, U+A960-A97F, U+AC00-D7FF;
}
@font-face {
    font-family: "NEXON Lv2 Gothic";
    src: url("/fonts/NEXONLv2Gothic-Medium.otf") format("opentype");
    font-weight: 600;
    font-style: normal;
    font-display: swap;
    unicode-range: U+0000-024F, U+1100-11FF, U+2000-206F, U+20A0-20CF, U+3130-318F, U+A960-A97F, U+AC00-D7FF;
}
@font-face {
    font-family: "NEXON Lv2 Gothic";
    src: url("/fonts/NEXONLv2Gothic-Bold.otf") format("opentype");
    font-weight: 800;
    font-style: normal;
    font-display: swap;
    unicode-range: U+0000-024F, U+1100-11FF, U+2000-206F, U+20A0-20CF, U+3130-318F, U+A960-A97F, U+AC00-D7FF;
}
@font-face {
    font-family: "L10n CJK";
    src: url("/fonts/NotoSansSC-Regular.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
    unicode-range: U+3000-303F, U+3400-4DBF, U+4E00-9FFF, U+F900-FAFF, U+FF00-FF60, U+20000-2FA1F;
}
@font-face {
    font-family: "L10n CJK";
    src: url("/fonts/NotoSansJP-Regular.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
    unicode-range: U+3040-30FF, U+31F0-31FF, U+3400-4DBF, U+4E00-9FFF, U+F900-FAFF, U+FF61-FF9F, U+20000-2FA1F;
}

:root {
    color-scheme: light;
    --font-cjk-system: "Microsoft YaHei", "微软雅黑", "PingFang SC", "PingFang TC", "Noto Sans SC", "Noto Sans CJK SC", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Meiryo", "Microsoft JhengHei", "Noto Sans JP", "Noto Sans CJK JP";
    --font-sans: "NEXON Lv2 Gothic", var(--font-cjk-system), "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
    --font-compare: "NEXON Lv2 Gothic", "L10n CJK", var(--font-cjk-system), "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
    /* Theme: mint / teal + neutral gray (aligned with forgamersbygamers.me) */
    --bg0: #e8e8e8;
    --bg1: #f0f0f0;
    --ink: #141414;
    --muted: #6b7280;
    --line: #e4e4e7;
    --card: #ffffff;
    --accent: #98ddca;
    --accent-deep: #0f766e;
    --accent-soft: #e7f7f2;
    --accent-border: #a8ddd0;
    --accent-rgb: 15, 118, 110;
    --ink-rgb: 20, 20, 20;
    --remove: #e88b88;
    --remove-soft: #fdecea;
    --remove-chip: #ffd5d3;
    --remove-ink: #a33d3d;
    --add: #5fad9a;
    --add-soft: #def7ee;
    --add-chip: #c5ebe0;
    --add-ink: #0f766e;
    --empty-fill: #f7f7f7;
    --row-line: #ececee;
    --shadow: 0 18px 44px rgba(var(--ink-rgb), 0.07);
    --radius-lg: 22px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --surface: #ffffff;
    --surface-glass: rgba(255, 255, 255, 0.72);
    --surface-glass-strong: rgba(255, 255, 255, 0.94);
    --panel-head-bg: linear-gradient(180deg, #ffffff, #f3f3f3);
    --gutter-bg: #fafafa;
    --minimap-bg: #f3f3f3;
    --row-number-color: #71717a;
    --scrollbar-track: #edf1f0;
    --scrollbar-thumb: #a8cfc5;
    --scrollbar-thumb-hover: #78ad9f;
    --check-mark-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%23ffffff' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round' d='M3.5 8.2l3 3.1 6-6.4'/%3E%3C/svg%3E");
    --check-mark-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%231c181e' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round' d='M3.5 8.2l3 3.1 6-6.4'/%3E%3C/svg%3E");
}

* {
    box-sizing: border-box;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
    scrollbar-width: thin;
}

*::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

*::-webkit-scrollbar-track,
*::-webkit-scrollbar-corner {
    background: var(--scrollbar-track);
}

*::-webkit-scrollbar-thumb {
    min-height: 36px;
    border: 2px solid var(--scrollbar-track);
    border-radius: 999px;
    background: var(--scrollbar-thumb);
}

*::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--ink);
    font-family: var(--font-sans);
    background:
        radial-gradient(1100px 520px at 8% -8%, #98ddca 0%, transparent 58%),
        radial-gradient(900px 460px at 96% 0%, #d5ecc2 0%, transparent 52%),
        radial-gradient(800px 420px at 70% 110%, #ffd3b4 0%, transparent 55%),
        linear-gradient(180deg, var(--bg1), var(--bg0));
}

.app {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 36px 0 56px;
}

.hero {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 22px;
}

.product-name {
    margin: 0 0 6px;
    font-family: var(--font-sans);
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--accent-deep);
}

.brand {
    margin: 0;
}

.brand-logo {
    display: block;
    height: clamp(44px, 7.2vw, 58px);
    width: auto;
}

.brand-logo-dark {
    display: none;
}

.subtitle {
    margin: 8px 0 0;
    color: var(--muted);
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.35;
}

.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.btn {
    appearance: none;
    border: 0;
    border-radius: 999px;
    padding: 11px 18px;
    font: inherit;
    font-weight: 600;
    font-size: 0.92rem;
    cursor: pointer;
    transition:
        transform 220ms cubic-bezier(0.2, 1.35, 0.35, 1),
        box-shadow 180ms ease,
        background 180ms ease,
        border-color 180ms ease;
}

.btn:not(:disabled):hover {
    transform: translateY(-1px) scale(1.01);
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    color: white;
    background: linear-gradient(135deg, #0b7f75, #0f766e);
    box-shadow: 0 10px 24px rgba(var(--accent-rgb), 0.34);
}

.btn-primary:hover {
    box-shadow: 0 14px 30px rgba(var(--accent-rgb), 0.42);
}

.btn-secondary {
    color: var(--ink);
    background: var(--surface-glass-strong);
    border: 1px solid var(--line);
    box-shadow: 0 4px 14px rgba(var(--ink-rgb), 0.04);
}

.btn-secondary:hover {
    background: var(--accent-soft);
    border-color: var(--accent-border);
}

.btn-ghost {
    color: var(--muted);
    background: transparent;
    border: 1px dashed var(--line);
}

.btn-ghost:hover {
    color: var(--ink);
    background: rgba(255, 255, 255, 0.55);
}

#statusMessage {
    min-height: 1.2em;
    color: var(--muted);
    font-size: 0.86rem;
    text-align: center;
}

.panel {
    background: var(--surface-glass-strong);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: box-shadow 0.22s ease, transform 0.22s ease;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.panel:focus-within {
    box-shadow: 0 22px 48px rgba(var(--accent-rgb), 0.16);
    transform: translateY(-1px);
}

.panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--line);
    background: var(--panel-head-bg);
    flex-shrink: 0;
}

.panel-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 0.95rem;
}

.badge {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.8);
}

.badge-original {
    background: var(--remove);
}

.badge-changed {
    background: var(--add);
}

.panel-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-size: 0.82rem;
}

.spreadsheet-paste-badge,
.change-position {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 3px 8px;
    border: 1px solid var(--accent-border);
    border-radius: 999px;
    color: var(--accent-deep);
    background: var(--accent-soft);
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
}

.spreadsheet-paste-badge {
    appearance: none;
    font-family: inherit;
    cursor: pointer;
}

.spreadsheet-paste-badge:hover,
.spreadsheet-paste-badge:focus-visible {
    border-color: var(--accent);
    filter: saturate(1.15);
}

.spreadsheet-paste-badge[hidden] {
    display: none !important;
}

.file-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.18s ease, color 0.18s ease;
}

.file-btn:hover {
    color: var(--ink);
    background: var(--accent-soft);
    border-color: var(--accent-border);
}

.file-btn input {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}

.file-btn:focus-within {
    color: var(--ink);
    border-color: var(--accent);
    outline: 2px solid rgba(var(--accent-rgb), 0.22);
    outline-offset: 2px;
}

.nav-btn {
    padding: 8px 12px;
    font-size: 0.82rem;
}

.diff-row.is-focused {
    outline: 2px solid rgba(var(--accent-rgb), 0.5);
    outline-offset: -2px;
}

textarea {
    width: 100%;
    min-height: 320px;
    height: 320px;
    border: 0;
    outline: 0;
    resize: vertical;
    padding: 18px;
    background: transparent;
    color: var(--ink);
    font: inherit;
    font-family: var(--font-compare);
    font-size: 0.95rem;
    line-height: 1.7;
    flex: 0 0 auto;
    field-sizing: fixed;
}

textarea::placeholder {
    color: #a1a1aa;
}

textarea:focus-visible {
    outline: 2px solid var(--accent-deep);
    outline-offset: -3px;
    border-radius: 10px;
}

.actions {
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 4px 0 28px;
}

.actions .btn-primary {
    padding: 13px 28px;
    font-size: 1rem;
}

.section-label {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-bottom: 12px;
}

.section-label h2 {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.result-heading-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    min-height: 32px;
}

.result-heading-row h2 {
    line-height: 1.2;
}

.result-sidebar-toggle {
    position: absolute;
    top: 8px;
    right: 0;
    z-index: 2;
    display: grid;
    width: 24px;
    height: 32px;
    padding: 0;
    place-items: center;
    border: 0;
    border-radius: 8px;
    color: var(--muted);
    background: transparent;
    box-shadow: none;
    cursor: pointer;
    transition:
        color 160ms ease,
        background 160ms ease,
        transform 160ms ease;
}

.result-sidebar-toggle:hover {
    color: var(--accent-deep);
    background: var(--accent-soft);
}

.result-sidebar-toggle:focus-visible {
    outline: 2px solid var(--accent-deep);
    outline-offset: -2px;
}

.result-sidebar-toggle svg {
    width: 14px;
    height: 14px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2.2;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: transform 500ms cubic-bezier(0.22, 1, 0.36, 1);
}

.result-sidebar-scrim {
    display: none;
}

.section-label-subtitle {
    margin: 0;
    color: var(--muted);
    font-size: 0.88rem;
    line-height: 1.55;
    max-width: none;
    width: 100%;
    word-break: keep-all;
    overflow-wrap: break-word;
    white-space: pre-line;
}

.section-tools {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    width: 100%;
    max-height: 420px;
    opacity: 1;
    transform: translateY(0);
    transform-origin: top;
    transition:
        max-height 220ms ease,
        opacity 160ms ease,
        transform 260ms cubic-bezier(0.2, 1.35, 0.35, 1);
}

.section-tools.is-collapsed {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    pointer-events: none;
    transform: translateY(-6px) scale(0.985);
}

.tool-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: var(--radius-md);
    background: var(--surface-glass);
    border: 1px solid var(--line);
}

.tool-group-label {
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    min-width: 2.75rem;
    flex: 0 0 auto;
}

.tool-group .search-box {
    flex: 1 1 220px;
}

.tool-group .search-box input {
    width: 100%;
    min-width: 0;
    max-width: none;
}

.tool-group-filter {
    container-name: filter-tools;
    container-type: inline-size;
}

.tool-group-navigation {
    container-name: navigation-tools;
    container-type: inline-size;
}

.tool-group-filter-controls,
.tool-group-navigation-controls {
    display: grid;
    gap: 8px;
    min-width: 0;
}

.tool-group-filter-controls {
    grid-template-columns: repeat(3, max-content);
}

.tool-group-filter > .options-group,
.tool-group-filter > .tool-group-filter-controls {
    flex: 1 1 100%;
    width: 100%;
}

.tool-group-navigation-controls {
    grid-template-columns: repeat(4, max-content);
}

.tool-group-filter-controls .toggle {
    min-width: 0;
    white-space: nowrap;
}

@container filter-tools (max-width: 650px) {
    .tool-group-filter-controls {
        flex: 1 1 100%;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        width: 100%;
    }

    .tool-group-filter-controls .toggle {
        justify-content: center;
        width: 100%;
    }

    .tool-group-filter-controls .toggle:last-child {
        grid-column: 1 / -1;
    }
}

@container filter-tools (max-width: 420px) {
    .tool-group-filter-controls {
        grid-template-columns: 1fr;
    }

    .tool-group-filter-controls .toggle:last-child {
        grid-column: auto;
    }
}

@container navigation-tools (max-width: 650px) {
    .tool-group-navigation-controls {
        flex: 1 1 100%;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        width: 100%;
    }

    .tool-group-navigation-controls .nav-btn,
    .tool-group-navigation-controls .change-position {
        justify-content: center;
        width: 100%;
    }
}

@container navigation-tools (max-width: 420px) {
    .tool-group-navigation-controls {
        grid-template-columns: 1fr;
    }
}

html[data-theme="dark"] .tool-group {
    background: rgba(20, 20, 20, 0.55);
    border-color: var(--line);
}

.result-shell {
    --split-left: 50fr;
    --split-right: 50fr;
    --split-position: 50%;
    --result-font-size: 15px;
    --result-remove-color: var(--remove);
    --result-add-color: var(--add);
    --result-remove-strong: color-mix(in srgb, var(--result-remove-color) 68%, var(--ink));
    --result-add-strong: color-mix(in srgb, var(--result-add-color) 68%, var(--ink));
    --result-remove-soft: color-mix(in srgb, var(--result-remove-color) 15%, var(--surface));
    --result-add-soft: color-mix(in srgb, var(--result-add-color) 15%, var(--surface));
    --result-remove-chip: color-mix(in srgb, var(--result-remove-color) 32%, var(--surface));
    --result-add-chip: color-mix(in srgb, var(--result-add-color) 32%, var(--surface));
    position: relative;
    background: var(--surface-glass-strong);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    backdrop-filter: blur(10px);
    animation: rise-in 0.35s ease;
}

@keyframes rise-in {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.result-empty {
    padding: 42px 24px;
    text-align: center;
    color: var(--muted);
}

.diff-headers {
    display: grid;
    grid-template-columns: minmax(0, var(--split-left)) minmax(0, var(--split-right));
    border-bottom: 1px solid var(--line);
    background: var(--panel-head-bg);
}

.diff-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 14px 16px;
    font-size: 0.9rem;
    font-weight: 600;
}

.diff-header + .diff-header {
    border-left: 1px solid var(--line);
}

#result.is-unified .diff-headers,
#result.is-unified .diff-row {
    grid-template-columns: 1fr;
}

#result.is-unified .diff-header + .diff-header,
#result.is-unified .diff-cell + .diff-cell {
    border-left: 0;
    border-top: 1px solid var(--line);
}

#result.is-unified .diff-row.is-same .diff-cell-right {
    display: none;
}

#result.is-unified .diff-realign-btn {
    left: auto;
    right: 10px;
    transform: translateY(-50%);
}

.diff-header-left {
    color: var(--result-remove-strong, var(--remove));
}

.diff-header-right {
    color: var(--result-add-strong, var(--add));
}

.diff-stat {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.diff-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--surface);
}

.diff-pill.remove {
    background: var(--result-remove-strong, var(--remove));
}

.diff-pill.add {
    background: var(--result-add-strong, var(--add));
}

.diff-lines {
    color: var(--muted);
    font-weight: 500;
    font-size: 0.82rem;
}

.diff-row {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, var(--split-left)) minmax(0, var(--split-right));
    border-bottom: 1px solid var(--row-line);
    content-visibility: auto;
    contain-intrinsic-size: auto 52px;
}

.diff-realign-btn {
    position: absolute;
    left: var(--split-position);
    top: 50%;
    z-index: 5;
    width: 28px;
    height: 28px;
    margin: 0;
    padding: 0;
    border: 1px solid var(--line);
    border-radius: 999px;
    transform: translate(-50%, -50%);
    background: var(--surface-glass-strong);
    color: var(--accent-deep);
    font-size: 0.9rem;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease, background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.diff-split-resizer {
    position: absolute;
    z-index: 4;
    top: 0;
    bottom: 0;
    left: var(--split-position);
    width: 14px;
    margin: 0;
    padding: 0;
    border: 0;
    transform: translateX(-50%);
    background: transparent;
    cursor: col-resize;
    touch-action: none;
}

.diff-split-resizer::after {
    content: "";
    position: absolute;
    top: 10px;
    bottom: 10px;
    left: 50%;
    width: 2px;
    border-radius: 999px;
    transform: translateX(-50%);
    background: transparent;
    transition: width 0.15s ease, background 0.15s ease;
}

.diff-split-resizer:hover::after,
.diff-split-resizer:focus-visible::after,
body.is-resizing-diff .diff-split-resizer::after {
    width: 4px;
    background: var(--accent);
}

.diff-split-resizer:focus-visible {
    outline: 2px solid var(--accent-deep);
    outline-offset: -2px;
}

#result.is-unified .diff-split-resizer {
    display: none;
}

body.is-resizing-diff,
body.is-resizing-diff * {
    cursor: col-resize !important;
    user-select: none !important;
}

.diff-row:hover .diff-realign-btn,
.diff-row:focus-within .diff-realign-btn,
.diff-realign-btn:focus-visible {
    opacity: 1;
    pointer-events: auto;
}

.diff-realign-btn:hover,
.diff-realign-btn:focus-visible {
    background: var(--accent-soft);
    border-color: var(--accent-border);
}

@media (hover: none) {
    .diff-realign-btn {
        width: 40px;
        height: 40px;
        font-size: 1.05rem;
        opacity: 0.92;
        pointer-events: auto;
        background: var(--surface);
        box-shadow: 0 4px 12px rgba(var(--ink-rgb), 0.12);
    }

    .diff-realign-btn::before {
        content: "";
        position: absolute;
        inset: -8px;
    }
}

html[data-theme="dark"] .diff-realign-btn {
    background: rgba(45, 45, 45, 0.96);
    border-color: #4a4a4a;
    color: #98ddca;
}

.diff-row:last-child {
    border-bottom: 0;
}

.diff-cell {
    display: grid;
    grid-template-columns: 14px 46px 1fr;
    min-width: 0;
    align-items: stretch;
}

.diff-cell + .diff-cell {
    border-left: 1px solid var(--row-line);
}

.row-sign {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 10px 0 10px;
    background: var(--gutter-bg);
    color: var(--row-number-color);
    font-size: 0.78rem;
    font-weight: 800;
    line-height: 1.65;
    user-select: none;
}

.row-number {
    padding: 10px 8px;
    text-align: right;
    color: var(--row-number-color);
    font-size: 0.78rem;
    font-variant-numeric: tabular-nums;
    background: var(--gutter-bg);
    border-right: 1px solid var(--row-line);
    user-select: none;
}

.diff-content {
    padding: 10px 14px;
    white-space: pre-wrap;
    word-break: break-word;
    font-family: var(--font-compare);
    font-size: var(--result-font-size, 0.92rem);
    line-height: 1.65;
    min-height: 2.6em;
}

.diff-row.is-changed .diff-cell-left {
    background: var(--result-remove-soft, var(--remove-soft));
    box-shadow: inset 3px 0 0 var(--result-remove-strong, var(--remove));
}

.diff-row.is-changed .diff-cell-left .row-sign {
    color: var(--result-remove-strong, var(--remove));
}

.diff-row.is-changed .diff-cell-right {
    background: var(--result-add-soft, var(--add-soft));
    box-shadow: inset 3px 0 0 var(--result-add-strong, var(--add));
}

.diff-row.is-changed .diff-cell-right .row-sign {
    color: var(--result-add-strong, var(--add));
}

.diff-row.is-empty-right .diff-cell-left {
    background: var(--result-remove-soft, var(--remove-soft));
    box-shadow: inset 3px 0 0 var(--result-remove-strong, var(--remove));
}

.diff-row.is-empty-right .diff-cell-left .row-sign {
    color: var(--result-remove-strong, var(--remove));
}

.diff-row.is-empty-right .diff-cell-right .diff-content {
    color: #a1a1aa;
}

.diff-row.is-empty-right .diff-cell-right {
    background: var(--empty-fill);
}

.diff-row.is-empty-left .diff-cell-right {
    background: var(--result-add-soft, var(--add-soft));
    box-shadow: inset 3px 0 0 var(--result-add-strong, var(--add));
}

.diff-row.is-empty-left .diff-cell-right .row-sign {
    color: var(--result-add-strong, var(--add));
}

.diff-row.is-empty-left .diff-cell-left .diff-content {
    color: #a1a1aa;
}

.diff-row.is-empty-left .diff-cell-left {
    background: var(--empty-fill);
}

.chip-del {
    background: var(--result-remove-chip, var(--remove-chip));
    color: var(--remove-ink);
    border-radius: 4px;
    padding: 0 2px;
}

.chip-add {
    background: var(--result-add-chip, var(--add-chip));
    color: var(--add-ink);
    border-radius: 4px;
    padding: 0 2px;
}

.editor-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 12px;
    margin-bottom: 18px;
    /* Independent panel heights so one side can shrink after the other grew. */
    align-items: start;
}

.swap-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    align-self: center;
}

.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    line-height: 1;
}

.btn-icon svg {
    display: block;
    flex-shrink: 0;
}

.btn-icon-swap {
    color: var(--muted);
}

.btn-icon-swap:hover {
    color: var(--accent-deep);
}

html[data-theme="dark"] .btn-icon-swap {
    color: #a0a0a0;
}

html[data-theme="dark"] .btn-icon-swap:hover {
    color: var(--accent);
}

.theme-toggle {
    position: relative;
    overflow: hidden;
    color: var(--muted);
    background: var(--surface-glass-strong);
}

.theme-toggle:hover {
    color: var(--accent-deep);
    border-color: var(--accent-border);
    background: var(--accent-soft);
}

.theme-toggle-icons {
    position: relative;
    width: 20px;
    height: 20px;
    display: grid;
    place-items: center;
}

.theme-icon {
    grid-area: 1 / 1;
    display: block;
    transition:
        opacity 0.28s ease,
        transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.theme-icon-moon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
    color: #52525b;
}

.theme-icon-sun {
    opacity: 0;
    transform: rotate(-50deg) scale(0.55);
    color: var(--accent-deep);
}

html[data-theme="dark"] .theme-toggle {
    color: #a0a0a0;
    background: rgba(45, 45, 45, 0.94);
    border-color: #4a4a4a;
}

html[data-theme="dark"] .theme-toggle:hover {
    color: var(--accent);
    border-color: #3d5f56;
    background: var(--accent-soft);
}

html[data-theme="dark"] .theme-icon-moon {
    opacity: 0;
    transform: rotate(50deg) scale(0.55);
}

html[data-theme="dark"] .theme-icon-sun {
    opacity: 1;
    transform: rotate(0deg) scale(1);
    color: #98ddca;
}

.site-footer {
    margin-top: 0;
    padding: 8px 4px 0;
    color: var(--muted);
    font-size: 0.86rem;
    line-height: 1.55;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
}

.site-footer p {
    margin: 0;
    max-width: none;
    word-break: keep-all;
    overflow-wrap: break-word;
    white-space: pre-line;
}

.site-footer a {
    color: var(--accent-deep);
    text-decoration: none;
    font-weight: 600;
}

.site-footer a:hover {
    text-decoration: underline;
}

.site-footer .footer-feedback {
    appearance: none;
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--accent-deep);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}

.site-footer .footer-feedback:hover {
    text-decoration: underline;
}

.site-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 14px;
    align-items: center;
}

.seo-panel {
    margin: 28px 0 0;
    padding: 24px 4px 0;
    border-top: 1px solid rgba(228, 228, 231, 0.95);
    color: var(--muted);
}

.seo-panel h2 {
    margin: 0 0 10px;
    font-size: 0.92rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: var(--ink);
}

.seo-panel h2:not(:first-child) {
    margin-top: 24px;
}

.seo-panel h2 + p,
.seo-panel > p {
    margin: 0 0 12px;
    color: var(--muted);
    font-size: 0.84rem;
    line-height: 1.6;
    word-break: keep-all;
}

.seo-feature-list {
    margin: 16px 0 4px;
    padding: 0;
    list-style: none;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    max-width: 62rem;
}

.seo-feature-list li {
    padding: 12px 14px;
    border: 1px solid rgba(228, 228, 231, 0.9);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.42);
    color: var(--muted);
    font-size: 0.8rem;
    line-height: 1.5;
    word-break: keep-all;
}

.seo-feature-list li::before {
    content: "✓";
    display: block;
    margin-bottom: 5px;
    color: var(--add);
    font-weight: 800;
}

.seo-faq {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.seo-faq details {
    border-bottom: 1px solid rgba(228, 228, 231, 0.85);
    padding: 8px 0 0;
}

.seo-faq details:not([open]) {
    padding-bottom: 8px;
}

.seo-faq summary {
    cursor: pointer;
    font-weight: 600;
    font-size: 0.84rem;
    color: var(--muted);
    list-style: none;
}

.seo-faq summary:hover {
    color: var(--ink);
}

.seo-faq summary::-webkit-details-marker {
    display: none;
}

.seo-faq summary::before {
    content: "+";
    display: inline-block;
    width: 1em;
    margin-right: 0.3em;
    color: inherit;
    font-weight: 600;
    opacity: 0.65;
}

.seo-faq details[open] summary::before {
    content: "−";
}

.seo-faq details[open] summary {
    color: var(--ink);
}

.seo-faq details p {
    margin: 6px 0 8px 1.3em;
    color: var(--muted);
    font-size: 0.8rem;
    line-height: 1.55;
    word-break: keep-all;
}

html[data-theme="dark"] .seo-panel {
    border-top-color: rgba(255, 255, 255, 0.08);
}

html[data-theme="dark"] .seo-faq details {
    border-bottom-color: rgba(255, 255, 255, 0.08);
}

html[data-theme="dark"] .seo-feature-list li {
    border-color: rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.025);
}

@media (max-width: 640px) {
    .site-footer {
        gap: 14px;
    }

    .site-footer-links {
        gap: 8px 12px;
    }

    .seo-feature-list {
        grid-template-columns: 1fr;
    }
}

.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;
}

.toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 999px;
    background: var(--surface-glass);
    border: 1px solid var(--line);
    color: var(--muted);
    font-size: 0.86rem;
    font-weight: 600;
    cursor: pointer;
    user-select: none;
}

.toggle input {
    appearance: none;
    width: 15px;
    height: 15px;
    margin: 0;
    flex: 0 0 auto;
    border: 1.5px solid #c4c4cc;
    border-radius: 4px;
    background: #ffffff;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
    transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.toggle input:hover {
    border-color: #7bc9b5;
    background: #eefaf6;
}

.toggle input:checked {
    border-color: var(--accent);
    background-color: var(--accent);
    background-image: var(--check-mark-light);
    background-position: center;
    background-size: 11px 11px;
    background-repeat: no-repeat;
    box-shadow: none;
}

.toggle input:focus-visible {
    outline: 2px solid var(--accent-deep);
    outline-offset: 2px;
}

html[data-theme="dark"] .toggle input {
    border-color: #52525b;
    background: #2a2a2a;
    box-shadow: none;
}

html[data-theme="dark"] .toggle input:hover {
    border-color: #98ddca;
    background: #1f2e2a;
}

html[data-theme="dark"] .toggle input:checked {
    border-color: var(--accent);
    background-color: var(--accent);
    background-image: var(--check-mark-dark);
    background-position: center;
    background-size: 11px 11px;
    background-repeat: no-repeat;
}

.diff-workspace {
    display: grid;
    grid-template-columns: 1fr 14px;
    min-height: 0;
}

.diff-body {
    max-height: min(70vh, 820px);
    overflow: auto;
}

.diff-body.is-virtualized {
    position: relative;
    overflow-anchor: none;
}

.diff-virtual-spacer {
    width: 1px;
    pointer-events: none;
}

.diff-virtual-items {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    will-change: transform;
}

.diff-virtual-items .diff-row:last-child {
    border-bottom: 1px solid var(--row-line);
}

.diff-body:focus-visible {
    outline: 2px solid var(--accent-deep);
    outline-offset: -2px;
}

.diff-body.hide-unchanged .diff-row.is-same {
    display: none;
}

.diff-body.qa-filter-on .diff-row:not(.qa-match) {
    display: none;
}

.diff-row.qa-number .row-number,
.diff-row.qa-token .row-number {
    color: var(--accent-deep);
    font-weight: 700;
}

.options-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    min-width: 0;
    width: 100%;
}

.options-group-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.options-label {
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    line-height: 1.35;
}

.options-group-controls .toggle {
    padding: 7px 10px;
    font-size: 0.8rem;
}

.segmented {
    display: inline-flex;
    border: 1px solid var(--line);
    border-radius: 999px;
    overflow: hidden;
    background: var(--surface-glass);
}

.segmented label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--muted);
    cursor: pointer;
    user-select: none;
}

.segmented.language-switch a {
    display: inline-flex;
    align-items: center;
    padding: 7px 12px;
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 600;
    text-decoration: none;
}

.segmented.language-switch a[aria-current="page"] {
    color: var(--ink);
    background: var(--accent-soft);
}

.segmented.language-switch a:focus-visible {
    outline: 2px solid var(--accent-deep);
    outline-offset: -2px;
}

.segmented input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.segmented label:has(input:checked) {
    color: var(--ink);
    background: var(--accent-soft);
}

.segmented label:has(input:focus-visible) {
    outline: 2px solid var(--accent-deep);
    outline-offset: -2px;
}

.stats-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 12px;
    margin: 0 0 10px;
    color: var(--muted);
    font-size: 0.84rem;
    font-weight: 600;
}

.stats-bar strong {
    color: var(--ink);
    font-weight: 700;
}

.search-box {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 12px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: var(--surface-glass-strong);
}

.search-box input {
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--ink);
    font: inherit;
    font-family: var(--font-compare);
    font-size: 0.86rem;
    min-width: 280px;
    width: 30vw;
    max-width: 360px;
}

.search-box:focus-within {
    border-color: var(--accent);
    outline: 2px solid var(--accent-deep);
    outline-offset: 1px;
}

.diff-row.is-search-hit {
    outline: 2px solid rgba(var(--accent-rgb), 0.55);
    outline-offset: -2px;
}

.diff-row.is-search-focus {
    outline: 2px solid var(--accent-deep);
    outline-offset: -2px;
    background: rgba(var(--accent-rgb), 0.08);
}

.diff-row.is-search-dim {
    opacity: 0.34;
}

.panel.is-drop-target {
    box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.55), var(--shadow);
    transform: translateY(-1px);
}

.panel-drop-hint {
    display: none;
    margin: 0;
    padding: 0 16px 10px;
    color: var(--muted);
    font-size: 0.8rem;
}

.panel.is-drop-target .panel-drop-hint {
    display: block;
    color: var(--accent-deep);
    font-weight: 600;
}

.sheet-dialog {
    width: min(460px, calc(100% - 32px));
    max-width: none;
    max-height: calc(100dvh - 32px);
    padding: 20px;
    border: 0;
    background: transparent;
    color: var(--ink);
    overflow: visible;
}

.sheet-dialog::backdrop {
    background: rgba(20, 20, 20, 0.42);
    backdrop-filter: blur(4px);
}

.modal-card {
    display: grid;
    grid-template-rows: auto auto minmax(0, 1fr) auto;
    width: 100%;
    max-height: calc(100dvh - 72px);
    overflow: hidden;
    background: var(--card);
    color: var(--ink);
    border-radius: 18px;
    border: 1px solid var(--line);
    box-shadow: 0 24px 60px rgba(0,0,0,0.18);
    padding: 18px;
}

.modal-card h3 {
    margin: 0 0 8px;
    font-size: 1.05rem;
}

.modal-card p {
    margin: 0 0 14px;
    color: var(--muted);
    font-size: 0.9rem;
}

.sheet-list {
    display: grid;
    gap: 8px;
    min-height: 0;
    max-height: 280px;
    overflow: auto;
    margin-bottom: 14px;
}

.sheet-list label {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid var(--line);
    cursor: pointer;
}

.sheet-list label:has(input:checked) {
    border-color: var(--accent-border);
    background: var(--accent-soft);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.hero-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    justify-content: flex-end;
    flex: 0 0 auto;
}

.utility-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    justify-content: flex-end;
    margin: -6px 0 18px;
}

.utility-bar .toolbar {
    justify-content: flex-end;
}

html[data-theme="dark"] body {
    color: #f0f0f0;
    background:
        radial-gradient(1100px 520px at 8% -8%, #1f3a34 0%, transparent 58%),
        radial-gradient(900px 460px at 96% 0%, #2a3328 0%, transparent 52%),
        radial-gradient(800px 420px at 70% 110%, #3a2e24 0%, transparent 55%),
        linear-gradient(180deg, #1a1a1a, #2d2d2d);
}

html[data-theme="dark"] {
    color-scheme: dark;
    --bg0: #2d2d2d;
    --bg1: #1a1a1a;
    --ink: #f0f0f0;
    --muted: #a0a0a0;
    --line: #3f3f46;
    --card: #2d2d2d;
    --accent: #98ddca;
    --accent-deep: #b3e8db;
    --accent-soft: #1f2e2a;
    --accent-border: #3d5f56;
    --accent-rgb: 152, 221, 202;
    --remove: #e0a0a0;
    --remove-soft: #322424;
    --remove-chip: #4a3535;
    --remove-ink: #f0d4d4;
    --add: #98ddca;
    --add-soft: #1f2e2a;
    --add-chip: #2f4840;
    --add-ink: #d5f0e8;
    --empty-fill: #202020;
    --row-line: #3a3a3a;
    --shadow: 0 18px 44px rgba(0,0,0,0.24);
    --surface: #222222;
    --surface-glass: rgba(45, 45, 45, 0.92);
    --surface-glass-strong: rgba(45, 45, 45, 0.96);
    --panel-head-bg: linear-gradient(180deg, #2f2f2f, #262626);
    --gutter-bg: #262626;
    --minimap-bg: #262626;
    --row-number-color: #a3a3a3;
    --scrollbar-track: #242827;
    --scrollbar-thumb: #53645f;
    --scrollbar-thumb-hover: #718d86;
}

html[data-theme="dark"] .brand-logo-light {
    display: none;
}

html[data-theme="dark"] .brand-logo-dark {
    display: block;
}

html[data-theme="dark"] .product-name {
    color: #98ddca;
}

html[data-theme="dark"] .btn-primary {
    color: #141414;
    background: linear-gradient(135deg, #98ddca, #7bc9b5);
    box-shadow: 0 8px 18px rgba(var(--accent-rgb), 0.18);
}

html[data-theme="dark"] .btn-primary:hover {
    box-shadow: 0 10px 22px rgba(var(--accent-rgb), 0.24);
}

html[data-theme="dark"] .site-footer a {
    color: #98ddca;
}

html[data-theme="dark"] .site-footer a:hover {
    color: #b3e8db;
}

html[data-theme="dark"] .panel,
html[data-theme="dark"] .btn-secondary,
html[data-theme="dark"] .search-box,
html[data-theme="dark"] .segmented,
html[data-theme="dark"] .toggle,
html[data-theme="dark"] .result-shell,
html[data-theme="dark"] .modal-card {
    background: var(--surface-glass);
}

html[data-theme="dark"] .row-number {
    background: var(--gutter-bg);
    color: var(--row-number-color);
    border-right-color: var(--line);
}

html[data-theme="dark"] .diff-body {
    background: #1f1f1f;
}

html[data-theme="dark"] .diff-row.is-same .diff-content {
    color: var(--ink);
}

html[data-theme="dark"] .result-empty {
    background: transparent;
    color: var(--muted);
}

html[data-theme="dark"] .file-btn {
    background: var(--surface);
    border-color: #4a4a4a;
    color: var(--muted);
}

html[data-theme="dark"] .file-btn:hover {
    background: var(--accent-soft);
    border-color: #3d5f56;
    color: var(--ink);
}

html[data-theme="dark"] .badge {
    box-shadow: 0 0 0 4px rgba(45, 45, 45, 0.92);
}

html[data-theme="dark"] .badge-original {
    background: #e88b88;
}

html[data-theme="dark"] .badge-changed {
    background: #98ddca;
}

html[data-theme="dark"] .segmented label:has(input:checked) {
    background: #1f2e2a;
    color: var(--ink);
}

html[data-theme="dark"] .segmented.language-switch a[aria-current="page"] {
    background: #1f2e2a;
    color: var(--ink);
}

html[data-theme="dark"] textarea {
    color: var(--ink);
    background: rgba(15, 15, 15, 0.55);
}

html[data-theme="dark"] textarea::placeholder {
    color: #71717a;
}

html[data-theme="dark"] .panel:focus-within {
    box-shadow: 0 18px 40px rgba(var(--accent-rgb), 0.1);
}

@media (max-width: 860px) {
    .app {
        width: min(100% - 20px, 1180px);
        padding: 22px 0 40px;
    }

    .hero {
        align-items: flex-start;
        gap: 12px;
        margin-bottom: 16px;
    }

    .hero > :first-child {
        flex: 1 1 auto;
        min-width: 0;
    }

    .toolbar,
    .utility-bar {
        justify-content: flex-start;
        width: 100%;
    }

    .hero-tools {
        flex: 0 0 auto;
        width: auto;
        justify-content: flex-end;
        gap: 8px;
        padding-top: 2px;
    }

    .utility-bar {
        margin: 0 0 16px;
    }

    .utility-bar .toolbar {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        width: 100%;
    }

    .toolbar .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        min-width: 0;
        box-sizing: border-box;
        padding: 10px 10px;
        font-size: 0.84rem;
        line-height: 1.25;
        white-space: nowrap;
    }

    .editor-grid {
        grid-template-columns: 1fr !important;
    }

    .swap-wrap {
        order: 0;
        padding: 2px 0;
    }

    .actions {
        flex-direction: column;
        align-items: center;
    }

    .options-group {
        width: 100%;
        gap: 8px;
    }

    .options-group-controls {
        width: 100%;
    }

    .section-tools {
        width: 100%;
        gap: 10px;
    }

    .tool-group {
        width: 100%;
        gap: 8px;
        padding: 10px;
    }

    .tool-group-label {
        min-width: 2.4rem;
        flex: 0 0 100%;
        margin-bottom: 2px;
    }

    .tool-group .nav-btn,
    .tool-group .toggle {
        flex: 1 1 auto;
        justify-content: center;
    }

    .search-box {
        flex: 1 1 100%;
    }

    .search-box input {
        width: 100%;
        max-width: none;
        min-width: 0;
    }

    textarea {
        min-height: 220px;
        height: 220px;
    }

    /* Keep minimap hidden: do not leave a 12px gutter column. */
    .diff-workspace {
        grid-template-columns: 1fr;
    }

}


.panel-stats {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 8px 18px;
    align-items: start;
    padding: 9px 16px 11px;
    border-top: 1px solid var(--line);
    background: var(--surface-glass);
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 600;
    flex-shrink: 0;
}

.panel-stat {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}

.panel-stat-main {
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
    min-width: 0;
}

.panel-stat-end {
    align-items: flex-end;
    text-align: right;
}

.panel-stat-end .panel-stat-main {
    justify-content: flex-end;
}

.panel-stat-end .panel-stat-meta {
    justify-content: flex-end;
}

.panel-stat-label {
    color: var(--muted);
    flex-shrink: 0;
}

.panel-stat-value {
    color: var(--accent-deep);
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.panel-stat-bytes {
    color: var(--muted);
    font-weight: 500;
    font-size: 0.72rem;
    line-height: 1.35;
}

.panel-stat-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0;
    min-width: 0;
}

.panel-stat-meta .panel-stat-bytes + .panel-stat-bytes::before {
    content: "·";
    margin: 0 8px;
    color: rgba(107, 114, 128, 0.55);
    font-weight: 600;
}

@media (max-width: 520px) {
    .panel-stats {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .panel-stat-end {
        align-items: flex-start;
        text-align: left;
        padding-top: 8px;
        border-top: 1px dashed rgba(15, 118, 110, 0.22);
    }

    .panel-stat-end .panel-stat-main,
    .panel-stat-end .panel-stat-meta {
        justify-content: flex-start;
    }
}

.zijie-unit {
    font-family: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Noto Sans SC", "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
}

html[data-theme="dark"] .panel-stats {
    background: rgba(20, 20, 20, 0.45);
    border-top-color: var(--line);
}

/* The comparison workspace is the application itself. */
.workspace-shell,
.workspace-view {
    display: contents;
}

.workspace-header {
    display: none;
}

.workspace-stale-badge[hidden],
.workspace-header-actions [hidden] {
    display: none !important;
}

.workspace-stale-badge {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 6px 10px;
    border: 1px solid #e8bd72;
    border-radius: 999px;
    color: #8a4b08;
    background: #fff7df;
    font-size: 0.76rem;
    font-weight: 700;
    white-space: nowrap;
}

html[data-theme="dark"] .workspace-stale-badge {
    border-color: #74511f;
    color: #ffd58a;
    background: #332711;
}

.workspace-tab {
    appearance: none;
    min-height: 36px;
    padding: 8px 14px;
    border: 0;
    border-radius: 999px;
    color: var(--muted);
    background: transparent;
    font: inherit;
    font-size: 0.86rem;
    font-weight: 700;
    cursor: pointer;
    transition:
        color 160ms ease,
        background 180ms ease,
        box-shadow 180ms ease,
        transform 240ms cubic-bezier(0.2, 1.35, 0.35, 1);
}

.workspace-tab[aria-selected="true"] {
    color: var(--ink);
    background: var(--accent-soft);
    box-shadow: inset 0 0 0 1px var(--accent-border);
    animation: control-pop 240ms cubic-bezier(0.2, 1.35, 0.35, 1);
}

.workspace-tab:disabled,
.btn:disabled {
    cursor: not-allowed;
    opacity: 0.52;
}

body.is-workspace-mode {
    overflow: hidden;
}

body.is-workspace-mode .app {
    width: 100%;
    height: 100vh;
    height: 100dvh;
    margin: 0;
    padding: 0;
}

body.is-workspace-mode .app > :not(#workspaceShell) {
    display: none !important;
}

body.is-workspace-mode .workspace-shell {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto auto;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    background:
        radial-gradient(900px 420px at 0% 0%, rgba(152, 221, 202, 0.28), transparent 58%),
        var(--bg1);
    transition:
        opacity 180ms ease,
        transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

html.is-language-leaving body.is-workspace-mode .workspace-shell {
    opacity: 0;
    pointer-events: none;
    transform: translateY(3px) scale(0.998);
}

html.is-language-entering body.is-workspace-mode .workspace-shell {
    animation: language-page-enter 280ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

:fullscreen body.is-workspace-mode .workspace-shell {
    animation: fullscreen-settle 260ms cubic-bezier(0.2, 1.15, 0.35, 1);
}

body.is-workspace-mode .workspace-header {
    grid-row: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 12px 18px;
    padding:
        calc(10px + env(safe-area-inset-top))
        calc(16px + env(safe-area-inset-right))
        10px
        calc(16px + env(safe-area-inset-left));
    border-bottom: 1px solid var(--line);
    background: var(--surface-glass-strong);
    box-shadow: 0 8px 24px rgba(var(--ink-rgb), 0.06);
    backdrop-filter: blur(14px);
}

.workspace-header-primary,
.workspace-header-center,
.workspace-header-actions,
.workspace-heading,
.workspace-tabs {
    display: flex;
    align-items: center;
}

.workspace-header-primary {
    min-width: 0;
    justify-self: start;
}

.workspace-header-center {
    min-width: 0;
    justify-self: center;
    gap: 8px;
}

.workspace-heading {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    line-height: 1;
    white-space: nowrap;
}

.workspace-product-name {
    color: var(--accent-deep);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.workspace-brand {
    margin: 0;
    line-height: 0;
}

.workspace-logo {
    display: block;
    width: auto;
    height: 42px;
}

.workspace-logo.brand-logo-dark {
    display: none;
}

html[data-theme="dark"] .workspace-logo.brand-logo-light {
    display: none;
}

html[data-theme="dark"] .workspace-logo.brand-logo-dark {
    display: block;
}

.workspace-title {
    color: var(--muted);
    font-size: 0.9rem;
    font-weight: 700;
}

.workspace-tabs {
    gap: 4px;
    padding: 3px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface-glass);
}

.workspace-header-actions {
    justify-self: end;
    justify-content: flex-end;
    gap: 7px;
    min-width: 0;
}

.workspace-header-actions .btn {
    padding: 8px 12px;
    font-size: 0.82rem;
    white-space: nowrap;
}

.workspace-header-actions .btn-icon {
    padding: 0;
}

.workspace-help-button {
    color: var(--muted);
}

.workspace-help-button:hover {
    color: var(--accent-deep);
}

.workspace-help-button .help-icon {
    display: block;
    width: 22px;
    height: 22px;
}

body.is-workspace-mode .workspace-view[hidden] {
    display: none !important;
}

body.is-workspace-mode .workspace-view:not([hidden]) {
    animation: workspace-view-in 260ms cubic-bezier(0.2, 1.2, 0.35, 1);
}

body.is-workspace-mode #workspaceEditView {
    grid-row: 2;
    min-height: 0;
    padding: 14px 18px;
    overflow: hidden;
}

body.is-workspace-mode #workspaceEditView:not([hidden]) {
    display: grid;
    grid-template-rows: auto minmax(240px, 1fr);
    gap: 12px;
}

body.is-workspace-mode #workspaceEditView .utility-bar,
body.is-workspace-mode #workspaceEditView .editor-grid {
    margin: 0;
}

body.is-workspace-mode #workspaceEditView .utility-bar {
    min-height: 0;
}

body.is-workspace-mode #workspaceEditView .editor-grid {
    min-height: 0;
    height: 100%;
    align-items: stretch;
}

body.is-workspace-mode #workspaceEditView .panel {
    height: 100%;
}

body.is-workspace-mode #workspaceEditView textarea {
    flex: 1 1 auto;
    min-height: 180px;
    height: auto !important;
    resize: none;
}

body.is-workspace-mode #workspaceResultView {
    grid-row: 2;
    min-height: 0;
    padding: 14px 18px 10px;
    overflow: hidden;
}

body.is-workspace-mode #workspaceResultView:not([hidden]) {
    display: block;
}

body.is-workspace-mode #workspaceResultView .result-layout {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 12px;
    width: 100%;
    height: 100%;
    min-height: 0;
}

body.is-workspace-mode #workspaceResultView .result-layout.is-tools-collapsed {
    grid-template-columns: auto minmax(0, 1fr);
}

body.is-workspace-mode #workspaceResultView .result-sidebar {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 308px;
    min-width: 0;
    min-height: 0;
    padding: 0;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--surface-glass);
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
    transition:
        width 500ms cubic-bezier(0.22, 1, 0.36, 1),
        background 180ms ease,
        box-shadow 220ms ease;
    will-change: width;
}

body.is-workspace-mode #workspaceResultView .result-sidebar-heading {
    flex: 0 0 auto;
    width: 306px;
    padding: 12px 36px 0 12px;
    opacity: 1;
    transition:
        opacity 170ms ease 160ms,
        transform 420ms cubic-bezier(0.22, 1, 0.36, 1),
        visibility 0s linear 0s;
}

body.is-workspace-mode #workspaceResultView .result-sidebar-heading h2 {
    margin: 0;
    font-size: 1rem;
    letter-spacing: -0.02em;
}

body.is-workspace-mode #workspaceResultView .result-layout.is-tools-collapsed .result-sidebar {
    width: 24px;
    border-color: transparent;
    background: transparent;
    box-shadow: none;
}

body.is-workspace-mode #workspaceResultView .result-layout.is-tools-collapsed .result-sidebar-heading {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(-8px);
    transition:
        opacity 100ms ease,
        transform 320ms ease,
        visibility 0s linear 500ms;
}

body.is-workspace-mode #workspaceResultView .result-layout.is-tools-collapsed .result-sidebar-toggle svg {
    transform: rotate(180deg);
}

body.is-workspace-mode #workspaceResultView .result-content {
    display: grid;
    grid-template-rows: auto auto minmax(0, 1fr);
    gap: 10px;
    min-width: 0;
    min-height: 0;
}

body.is-workspace-mode #workspaceResultView .section-label {
    min-height: 0;
    margin: 0;
    overflow: hidden;
}

body.is-workspace-mode #workspaceResultView .section-label-subtitle {
    display: none;
}

body.is-workspace-mode #workspaceResultView .section-tools {
    display: flex;
    flex: 1 1 auto;
    width: 306px;
    min-width: 306px;
    min-height: 0;
    max-height: none;
    gap: 8px;
    padding: 0 12px 12px;
    overflow-x: hidden;
    overflow-y: auto;
    scrollbar-gutter: stable;
    transition:
        opacity 180ms ease 170ms,
        transform 420ms cubic-bezier(0.22, 1, 0.36, 1),
        visibility 0s linear 0s;
}

body.is-workspace-mode #workspaceResultView .section-tools.is-collapsed {
    max-height: none;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-8px);
    transition:
        opacity 100ms ease,
        transform 320ms ease,
        visibility 0s linear 500ms;
}

body.is-workspace-mode #workspaceResultView .tool-group {
    flex: 0 0 auto;
    align-items: stretch;
    align-content: flex-start;
    color: var(--muted);
    font-size: 0.8rem;
    line-height: 1.35;
}

body.is-workspace-mode #workspaceResultView .result-sidebar .tool-group-label {
    flex: 1 1 100%;
    width: 100%;
    min-width: 0;
    color: var(--ink);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    line-height: 1.35;
}

body.is-workspace-mode #workspaceResultView .tool-group-heading {
    display: flex;
    flex: 1 1 100%;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    width: 100%;
    min-width: 0;
}

body.is-workspace-mode #workspaceResultView .result-sidebar .tool-group-heading .tool-group-label {
    flex: 1 1 auto;
    width: auto;
}

body.is-workspace-mode #workspaceResultView .tool-group-heading .change-position {
    flex: 0 0 auto;
}

body.is-workspace-mode #workspaceResultView .result-sidebar .options-label {
    width: 100%;
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    line-height: 1.4;
}

body.is-workspace-mode #workspaceResultView .result-sidebar .btn,
body.is-workspace-mode #workspaceResultView .result-sidebar .toggle,
body.is-workspace-mode #workspaceResultView .result-sidebar .segmented label,
body.is-workspace-mode #workspaceResultView .result-sidebar .search-box input {
    font-size: 0.8rem;
}

body.is-workspace-mode #workspaceResultView .tool-group-view .tool-group-fill {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
}

body.is-workspace-mode #workspaceResultView .tool-group-view .tool-group-fill label,
body.is-workspace-mode #workspaceResultView .tool-group-view .tool-group-fill span {
    justify-content: center;
    min-width: 0;
}

body.is-workspace-mode #workspaceResultView .tool-group-search .search-box {
    flex: 1 1 100%;
    min-width: 0;
    width: 100%;
    padding-inline: 10px;
    overflow: hidden;
}

body.is-workspace-mode #workspaceResultView .tool-group-search .search-box input {
    min-width: 0;
    text-overflow: ellipsis;
}

body.is-workspace-mode #workspaceResultView .tool-group-search-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    width: 100%;
}

body.is-workspace-mode #workspaceResultView .tool-group-search-controls .btn {
    justify-content: center;
    width: 100%;
}

body.is-workspace-mode #workspaceResultView .result-sidebar .options-group-controls {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
}

body.is-workspace-mode #workspaceResultView .result-sidebar .options-group-controls .toggle {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 15px;
    justify-content: stretch;
    width: 100%;
}

body.is-workspace-mode #workspaceResultView .result-sidebar .options-group-controls .toggle span,
body.is-workspace-mode #workspaceResultView .tool-group-filter-controls .toggle span {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
    text-align: left;
}

body.is-workspace-mode #workspaceResultView .result-sidebar .options-group-controls .toggle input,
body.is-workspace-mode #workspaceResultView .tool-group-filter-controls .toggle input {
    grid-column: 2;
    grid-row: 1;
    margin-inline-start: auto;
}

body.is-workspace-mode #workspaceResultView .tool-group-filter-controls .toggle {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 15px;
    justify-content: stretch;
    width: 100%;
}

body.is-workspace-mode #workspaceResultView .result-appearance-controls {
    display: grid;
    gap: 9px;
    width: 100%;
}

body.is-workspace-mode #workspaceResultView .result-font-size-control {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 7px 10px;
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 600;
}

body.is-workspace-mode #workspaceResultView .result-font-size-control output {
    color: var(--accent-deep);
    font-variant-numeric: tabular-nums;
    font-weight: 700;
}

body.is-workspace-mode #workspaceResultView .result-font-size-control input {
    grid-column: 1 / -1;
    width: 100%;
    margin: 0;
    accent-color: var(--accent-deep);
}

body.is-workspace-mode #workspaceResultView .result-color-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

body.is-workspace-mode #workspaceResultView .result-color-controls label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    min-width: 0;
    padding: 6px 8px;
    border: 1px solid var(--line);
    border-radius: 10px;
    color: var(--muted);
    background: var(--surface-glass-strong);
    font-size: 0.72rem;
    font-weight: 600;
}

body.is-workspace-mode #workspaceResultView .result-color-controls input[type="color"] {
    width: 30px;
    height: 26px;
    flex: 0 0 auto;
    padding: 2px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    cursor: pointer;
}

body.is-workspace-mode #workspaceResultView .result-appearance-reset {
    justify-content: center;
    width: 100%;
    padding: 7px 10px;
}

body.is-workspace-mode #workspaceResultView .result-sidebar .options-group-controls .segmented {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
}

body.is-workspace-mode #workspaceResultView .result-sidebar .options-group-controls .segmented label,
body.is-workspace-mode #workspaceResultView .result-sidebar .options-group-controls .segmented span {
    justify-content: center;
    min-width: 0;
}

body.is-workspace-mode #workspaceResultView .result-copy-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    min-height: 32px;
    padding: 0 13px;
    font-size: 0.82rem;
    line-height: 1;
    white-space: nowrap;
}

body.is-workspace-mode #workspaceResultView .stats-bar {
    margin: 0;
}

body.is-workspace-mode #workspaceResultView #result {
    display: flex;
    flex-direction: column;
    min-height: 0;
    height: 100%;
}

body.is-workspace-mode #workspaceResultView #result > .result-empty {
    display: grid;
    flex: 1 1 auto;
    place-items: center;
}

body.is-workspace-mode #workspaceResultView .diff-headers {
    flex: 0 0 auto;
}

body.is-workspace-mode #workspaceResultView .diff-workspace {
    flex: 1 1 auto;
    min-height: 0;
    height: 100%;
}

body.is-workspace-mode #workspaceResultView .diff-body {
    min-height: 0;
    height: 100%;
    max-height: none;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
}

@media (min-width: 861px) {
    body.is-workspace-mode #workspaceResultView .diff-body {
        -ms-overflow-style: none;
        scrollbar-width: none;
        scrollbar-gutter: auto;
    }

    body.is-workspace-mode #workspaceResultView .diff-body::-webkit-scrollbar {
        width: 0;
        height: 0;
    }
}

body.is-workspace-mode .actions {
    grid-row: 3;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    justify-content: stretch;
    gap: 8px 14px;
    min-height: 62px;
    margin: 0;
    padding:
        9px
        calc(18px + env(safe-area-inset-right))
        calc(9px + env(safe-area-inset-bottom))
        calc(18px + env(safe-area-inset-left));
    border-top: 1px solid var(--line);
    background: var(--surface-glass-strong);
    box-shadow: 0 -8px 24px rgba(var(--ink-rgb), 0.05);
    backdrop-filter: blur(14px);
}

body.is-workspace-mode .actions .btn-primary {
    grid-column: 2;
    grid-row: 1;
    justify-self: center;
    padding: 10px 20px;
    font-size: 0.9rem;
}

body.is-workspace-mode #statusMessage {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
    text-align: left;
}

.workspace-legal-footer {
    grid-row: 4;
    min-width: 0;
    padding:
        11px
        calc(18px + env(safe-area-inset-right))
        calc(12px + env(safe-area-inset-bottom))
        calc(18px + env(safe-area-inset-left));
    color: var(--muted);
    background: var(--surface-glass-strong);
    font-size: 0.86rem;
    line-height: 1.5;
    border: 0;
    box-shadow: none;
}

.workspace-footer-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px 14px;
    min-width: 0;
    white-space: nowrap;
}

.workspace-legal-footer a,
.workspace-legal-footer .footer-feedback {
    color: var(--accent-deep);
    font: inherit;
    font-weight: 700;
    text-decoration: none;
}

.workspace-legal-footer .footer-feedback {
    appearance: none;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
}

.workspace-legal-footer a:hover,
.workspace-legal-footer .footer-feedback:hover {
    text-decoration: underline;
}

.about-dialog {
    width: min(1040px, calc(100vw - 36px));
    max-height: min(88vh, 880px);
    padding: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    color: var(--ink);
    background: var(--bg1);
    box-shadow: 0 28px 80px rgba(var(--ink-rgb), 0.22);
    opacity: 1;
    transform: translateY(0) scale(1);
    transition:
        opacity 170ms ease,
        transform 260ms cubic-bezier(0.2, 1.35, 0.35, 1),
        overlay 260ms allow-discrete,
        display 260ms allow-discrete;
}

.about-dialog::backdrop {
    background: rgba(15, 23, 42, 0.38);
    backdrop-filter: blur(4px);
    opacity: 1;
    transition: opacity 150ms ease, overlay 170ms allow-discrete, display 170ms allow-discrete;
}

@starting-style {
    .about-dialog[open] {
        opacity: 0;
        transform: translateY(8px) scale(0.985);
    }

    .about-dialog[open]::backdrop {
        opacity: 0;
    }
}

.about-dialog.is-closing {
    opacity: 0;
    transform: translateY(6px) scale(0.99);
    transition-duration: 150ms;
    transition-timing-function: ease-in;
}

.about-dialog.is-closing::backdrop {
    opacity: 0;
}

.about-dialog-shell {
    display: flex;
    flex-direction: column;
    max-height: min(88vh, 880px);
}

.about-dialog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--line);
    background: var(--surface-glass-strong);
}

.about-dialog-header h2 {
    margin: 0;
    font-size: 1rem;
}

.about-dialog-content {
    padding: 24px;
    overflow: auto;
}

.about-dialog-content .seo-panel {
    display: block !important;
    margin: 0;
    padding: 0;
    border-top: 0;
}

.about-dialog-content .seo-panel h2 {
    margin-bottom: 10px;
    font-size: 1rem;
}

.about-dialog-content .seo-panel h2:not(:first-child) {
    margin-top: 28px;
}

.about-dialog-content .seo-panel > p {
    max-width: 58rem;
    margin-bottom: 16px;
    font-size: 0.88rem;
    line-height: 1.7;
}

.about-dialog-content .seo-feature-list {
    max-width: none;
    margin-top: 18px;
    gap: 12px;
}

.about-dialog-content .seo-feature-list li {
    padding: 15px 16px;
    background: var(--surface-glass-strong);
}

.about-dialog-content .shortcut-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.about-dialog-content .shortcut-list > div {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    color: var(--muted);
    background: var(--surface-glass-strong);
    font-size: 0.82rem;
}

.about-dialog-content .shortcut-list kbd {
    padding: 4px 7px;
    border: 1px solid var(--line);
    border-bottom-width: 2px;
    border-radius: 6px;
    color: var(--ink);
    background: var(--surface);
    font: 700 0.76rem/1.2 var(--font-sans);
    white-space: nowrap;
}

.about-dialog-content .seo-faq {
    gap: 8px;
}

.about-dialog-content .seo-faq details {
    padding: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--surface-glass-strong);
    overflow: hidden;
}

.about-dialog-content .seo-faq details:not([open]) {
    padding-bottom: 0;
}

.about-dialog-content .seo-faq summary {
    padding: 12px 14px;
}

.about-dialog-content .seo-faq details p {
    margin: 0;
    padding: 0 14px 14px 2.7em;
}

.about-dialog-content .site-footer {
    display: flex !important;
    margin-top: 22px;
    padding: 16px 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: var(--surface-glass-strong);
}

body.has-stale-workspace-result .diff-realign-btn {
    pointer-events: none !important;
    opacity: 0.28 !important;
}

@keyframes workspace-view-in {
    0% { opacity: 0; transform: translateY(7px) scale(0.992); }
    72% { opacity: 1; transform: translateY(-1px) scale(1.003); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes fullscreen-settle {
    0% { opacity: 0.94; transform: scale(0.995); }
    72% { opacity: 1; transform: scale(1.002); }
    100% { opacity: 1; transform: scale(1); }
}

@keyframes control-pop {
    0% { transform: scale(0.97); }
    72% { transform: scale(1.025); }
    100% { transform: scale(1); }
}

@keyframes language-page-enter {
    from { opacity: 0; transform: translateY(-3px) scale(0.998); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        transition-delay: 0s !important;
    }

    .section-tools,
    .result-layout,
    .result-sidebar,
    .result-sidebar-heading,
    .result-sidebar-scrim,
    .result-sidebar-toggle svg,
    .about-dialog,
    .about-dialog::backdrop,
    .workspace-tab[aria-selected="true"],
    body.is-workspace-mode .workspace-view:not([hidden]),
    :fullscreen body.is-workspace-mode .workspace-shell,
    html.is-language-entering body.is-workspace-mode .workspace-shell,
    html.is-language-leaving body.is-workspace-mode .workspace-shell {
        animation: none !important;
        transition: none !important;
    }
}

@media (max-width: 780px) {
    body.is-workspace-mode .workspace-header {
        grid-template-columns: minmax(0, 1fr) auto;
    }

    .workspace-header-center {
        grid-column: 1 / -1;
        grid-row: 2;
        justify-self: center;
    }

    .workspace-header-actions {
        grid-column: 2;
        grid-row: 1;
        justify-content: flex-end;
        overflow-x: auto;
        padding-bottom: 2px;
    }
}

@media (max-width: 860px) {
    body.is-workspace-mode #workspaceEditView {
        padding: 10px;
        overflow: auto;
    }

    body.is-workspace-mode #workspaceResultView {
        padding: 10px;
        overflow: hidden;
    }

    body.is-workspace-mode #workspaceEditView:not([hidden]) {
        display: block;
    }

    body.is-workspace-mode #workspaceEditView .utility-bar,
    body.is-workspace-mode #workspaceEditView .editor-grid {
        margin-bottom: 12px;
    }

    body.is-workspace-mode #workspaceEditView .editor-grid {
        height: auto;
    }

    body.is-workspace-mode #workspaceEditView .panel {
        height: auto;
    }

    body.is-workspace-mode #workspaceEditView textarea {
        min-height: 220px;
        height: 220px !important;
        resize: vertical;
    }

    body.is-workspace-mode #workspaceResultView:not([hidden]) {
        display: block;
    }

    body.is-workspace-mode #workspaceResultView .result-layout,
    body.is-workspace-mode #workspaceResultView .result-layout.is-tools-collapsed {
        position: relative;
        display: block;
        height: 100%;
        min-height: 0;
    }

    body.is-workspace-mode #workspaceResultView .result-sidebar {
        position: absolute;
        inset: 0 auto 0 0;
        z-index: 5;
        width: min(308px, calc(100% - 18px));
        min-height: 100%;
        background: var(--surface-glass-strong);
        box-shadow: 14px 0 34px rgba(var(--ink-rgb), 0.14);
        transition:
            width 500ms cubic-bezier(0.22, 1, 0.36, 1),
            box-shadow 220ms ease;
    }

    body.is-workspace-mode #workspaceResultView .result-sidebar-scrim {
        position: absolute;
        inset: 0;
        z-index: 4;
        display: block;
        border-radius: var(--radius-lg);
        background: rgba(20, 20, 20, 0.2);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        touch-action: manipulation;
        transition:
            opacity 180ms ease,
            visibility 0s linear 180ms;
    }

    html[data-theme="dark"] body.is-workspace-mode #workspaceResultView .result-sidebar-scrim {
        background: rgba(0, 0, 0, 0.38);
    }

    body.is-workspace-mode #workspaceResultView .result-layout.is-mobile-tools-open .result-sidebar-scrim {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transition:
            opacity 180ms ease,
            visibility 0s linear 0s;
    }

    body.is-workspace-mode #workspaceResultView .result-sidebar-heading {
        padding-right: 52px;
    }

    body.is-workspace-mode #workspaceResultView .result-sidebar-toggle {
        top: 0;
        width: 44px;
        height: 44px;
    }

    body.is-workspace-mode #workspaceResultView .result-layout:not(.is-tools-collapsed) .result-sidebar-toggle svg {
        transform: translateX(10px);
    }

    body.is-workspace-mode #workspaceResultView .result-layout.is-tools-collapsed .result-sidebar {
        width: 44px;
        box-shadow: none;
    }

    body.is-workspace-mode #workspaceResultView .result-layout.is-tools-collapsed .result-sidebar-toggle svg {
        transform: translateX(-10px) rotate(180deg);
    }

    body.is-workspace-mode #workspaceResultView .result-content {
        height: 100%;
        min-height: 0;
        padding-left: 32px;
    }

    body.is-workspace-mode #workspaceResultView #result {
        min-height: 0;
        height: 100%;
    }

    body.is-workspace-mode #workspaceResultView .diff-body {
        height: 100%;
    }
}

@media (max-width: 620px) {
    body.is-workspace-mode .workspace-header {
        grid-template-columns: 1fr;
        padding-left: 10px;
        padding-right: 10px;
    }

    .workspace-header-primary {
        grid-column: 1;
        grid-row: 1;
    }

    .workspace-heading {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
    }

    .workspace-logo {
        height: 38px;
    }

    .workspace-header-actions {
        grid-column: 1;
        grid-row: 2;
        justify-self: end;
        max-width: 100%;
    }

    .workspace-header-center {
        grid-column: 1;
        grid-row: 3;
    }

    .about-dialog-content .shortcut-list {
        grid-template-columns: 1fr;
    }

    body.is-workspace-mode .actions {
        grid-template-columns: 1fr;
        padding-left: 10px;
        padding-right: 10px;
    }

    body.is-workspace-mode .actions .btn-primary {
        grid-column: 1;
        grid-row: 1;
        width: 100%;
    }

    body.is-workspace-mode #statusMessage {
        grid-column: 1;
        grid-row: 2;
        text-align: center;
    }

    .workspace-legal-footer {
        padding-left: 10px;
        padding-right: 10px;
        overflow-x: auto;
    }

    .workspace-footer-links {
        justify-content: flex-start;
        width: max-content;
    }
}

/* Comparison runs in a worker; this modal remains responsive, including cancel. */
#comparisonProgress {
    border: 1px solid var(--line); border-radius: 16px;
    padding: 28px; max-width: min(380px, calc(100vw - 48px));
    background: var(--card); color: var(--ink); text-align: center;
}
#comparisonProgress::backdrop { background: rgba(0, 0, 0, .3); }
#comparisonProgress p { margin: 12px 0 0; line-height: 1.6; }
#comparisonProgress .progress-symbol { font-size: 28px; }
#comparisonCancelButton { margin-top: 18px; min-width: 96px; }
#compareButton:disabled { cursor: wait; opacity: .7; }