:root {
    color-scheme: dark;
    --pm-bg: #0d1218;
    --pm-surface: #151d25;
    --pm-surface-2: #1b2630;
    --pm-surface-3: #22303b;
    --pm-border: #38505f;
    --pm-border-soft: #283b47;
    --pm-text: #edf5f7;
    --pm-muted: #aec0c8;
    --pm-cyan: #55d8e8;
    --pm-cyan-deep: #167b8a;
    --pm-amber: #f3bf63;
    --pm-green: #72d4a0;
    --pm-red: #f37d7d;
    --pm-black: #080a0d;
    --pm-radius: 6px;
    --pm-shadow: 0 16px 42px rgba(0, 0, 0, 0.28);
}

* {
    box-sizing: border-box;
}

html {
    background: var(--pm-bg);
    scroll-behavior: smooth;
}

body.privacy-mask-app {
    margin: 0;
    min-width: 0;
    color: var(--pm-text);
    background:
        linear-gradient(rgba(85, 216, 232, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(85, 216, 232, 0.025) 1px, transparent 1px),
        var(--pm-bg);
    background-size: 32px 32px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;
    line-height: 1.7;
    overflow-wrap: anywhere;
}

button,
input,
select,
textarea {
    font: inherit;
    letter-spacing: 0;
}

button {
    min-height: 44px;
    border: 1px solid var(--pm-cyan-deep);
    border-radius: var(--pm-radius);
    padding: 9px 16px;
    color: #061115;
    background: var(--pm-cyan);
    font-weight: 700;
    cursor: pointer;
    transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease, opacity 160ms ease;
}

button:hover:not(:disabled) {
    background: #8be7f1;
}

button:focus-visible,
input:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
    outline: 3px solid var(--pm-amber);
    outline-offset: 2px;
}

button:disabled {
    color: #78909a;
    border-color: #344650;
    background: #26343d;
    cursor: not-allowed;
    opacity: 0.78;
}

button.secondary {
    color: var(--pm-text);
    border-color: var(--pm-border);
    background: var(--pm-surface-3);
}

button.secondary:hover:not(:disabled) {
    border-color: var(--pm-cyan);
    background: #2b3c48;
}

button.danger {
    color: #fff;
    border-color: #a84848;
    background: #773838;
}

button.danger:hover:not(:disabled) {
    background: #934545;
}

button.compact {
    min-height: 40px;
    padding: 7px 11px;
}

.privacy-mask-app [hidden] {
    display: none !important;
}

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.pm-shell {
    width: min(1600px, 100%);
    margin: 0 auto;
    padding: 24px clamp(16px, 2.5vw, 40px) 40px;
}

.pm-header {
    padding: 14px 0 26px;
    border-bottom: 1px solid var(--pm-border-soft);
}

.pm-breadcrumb,
.pm-header a,
.pm-footer a,
.pm-related-links a {
    color: var(--pm-cyan);
    text-decoration: none;
}

.pm-breadcrumb:hover,
.pm-related-links a:hover,
.pm-footer a:hover {
    text-decoration: underline;
}

.pm-kicker {
    margin: 0 0 6px;
    color: var(--pm-amber);
    font: 700 12px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    letter-spacing: 0;
}

.pm-header .pm-kicker {
    margin-top: 24px;
}

.pm-header h1 {
    margin: 0;
    font-size: clamp(30px, 3.2vw, 40px);
    line-height: 1.24;
    letter-spacing: 0;
}

.pm-header h1 span {
    display: inline-block;
}

.pm-header h1 span + span {
    margin-left: 0.28em;
}

.pm-lead {
    max-width: 900px;
    margin: 12px 0 0;
    color: var(--pm-muted);
    font-size: 16px;
}

.pm-tool {
    padding: 24px 0 8px;
}

.pm-load-band {
    display: grid;
    grid-template-columns: minmax(300px, 1fr) auto minmax(210px, 280px);
    gap: 14px;
    align-items: stretch;
}

.pm-drop-zone {
    display: grid;
    align-content: center;
    min-height: 112px;
    padding: 18px 22px;
    border: 1px dashed #4b7583;
    border-radius: var(--pm-radius);
    background: rgba(20, 31, 39, 0.9);
    cursor: pointer;
}

.pm-drop-zone strong {
    font-size: 17px;
}

.pm-drop-zone span,
.pm-drop-zone small,
.pm-file-summary small {
    color: var(--pm-muted);
}

.pm-drop-zone.is-dragging {
    border-color: var(--pm-amber);
    background: rgba(40, 50, 46, 0.95);
}

.pm-drop-zone.is-loaded {
    border-style: solid;
    border-color: var(--pm-green);
}

.pm-load-actions {
    display: grid;
    grid-template-columns: minmax(128px, 1fr);
    gap: 10px;
    align-content: center;
}

.pm-file-summary {
    display: grid;
    align-content: center;
    min-width: 0;
    padding: 16px 18px;
    border-left: 3px solid var(--pm-cyan-deep);
    background: var(--pm-surface);
}

.pm-file-summary strong {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pm-status {
    min-height: 50px;
    margin-top: 12px;
    padding: 11px 14px;
    border: 1px solid var(--pm-border-soft);
    border-left: 3px solid var(--pm-cyan);
    background: var(--pm-surface);
}

.pm-status.is-error {
    border-left-color: var(--pm-red);
    color: #ffd4d4;
}

.pm-status.is-success {
    border-left-color: var(--pm-green);
}

.pm-privacy-note {
    margin: 8px 0 18px;
    color: var(--pm-muted);
    font-size: 13px;
}

.pm-workspace {
    display: grid;
    grid-template-columns: minmax(250px, 300px) minmax(440px, 1fr) minmax(250px, 300px);
    gap: 14px;
    align-items: start;
}

.pm-panel {
    min-width: 0;
    border: 1px solid var(--pm-border-soft);
    border-radius: var(--pm-radius);
    background: rgba(20, 29, 37, 0.96);
    box-shadow: var(--pm-shadow);
}

.pm-regions-panel,
.pm-save-panel {
    padding: 16px;
}

.pm-panel-heading {
    display: flex;
    gap: 12px;
    justify-content: space-between;
    align-items: flex-start;
    min-height: 56px;
    margin-bottom: 12px;
}

.pm-panel-heading h2 {
    margin: 0;
    font-size: 20px;
    line-height: 1.35;
}

.pm-panel-heading > strong {
    flex: 0 0 auto;
    color: var(--pm-cyan);
    font: 700 13px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.pm-panel-help,
.pm-editor-help {
    margin: 10px 0;
    color: var(--pm-muted);
    font-size: 13px;
}

.wide {
    width: 100%;
}

.pm-region-list {
    display: grid;
    gap: 7px;
    max-height: 250px;
    margin: 12px 0;
    padding: 0;
    overflow: auto;
    list-style: none;
}

.pm-region-list button {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr) auto;
    gap: 8px;
    align-items: center;
    width: 100%;
    min-height: 44px;
    padding: 7px 10px;
    color: var(--pm-text);
    border-color: var(--pm-border-soft);
    background: var(--pm-surface-2);
    text-align: left;
}

.pm-region-list button.is-selected {
    border-color: var(--pm-cyan);
    background: #213844;
}

.pm-region-number {
    display: grid;
    place-items: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    color: #071014;
    background: var(--pm-amber);
    font: 800 12px/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.pm-region-name {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pm-region-angle {
    color: var(--pm-muted);
    font: 700 12px/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.pm-empty {
    margin: 12px 0;
    padding: 14px;
    color: var(--pm-muted);
    border: 1px dashed var(--pm-border);
    text-align: center;
}

.pm-control-group {
    margin: 14px 0 0;
    padding: 14px;
    border: 1px solid var(--pm-border-soft);
    border-radius: var(--pm-radius);
}

.pm-control-group:disabled {
    opacity: 0.58;
}

.pm-control-group legend {
    padding: 0 6px;
    color: var(--pm-amber);
    font-weight: 700;
}

.pm-method-picker {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
}

.pm-method-picker label {
    min-width: 0;
}

.pm-method-picker input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.pm-method-picker span {
    display: grid;
    place-items: center;
    min-height: 42px;
    padding: 5px;
    border: 1px solid var(--pm-border);
    border-radius: 4px;
    color: var(--pm-muted);
    background: var(--pm-surface-2);
    cursor: pointer;
    white-space: nowrap;
}

.pm-method-picker input:checked + span {
    color: #071014;
    border-color: var(--pm-cyan);
    background: var(--pm-cyan);
    font-weight: 800;
}

.pm-method-picker input:focus-visible + span {
    outline: 3px solid var(--pm-amber);
    outline-offset: 2px;
}

.pm-range-row {
    display: grid;
    gap: 7px;
    margin: 13px 0;
}

.pm-range-row > span {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    color: var(--pm-muted);
    font-size: 13px;
}

.pm-range-row input[type="range"] {
    width: 100%;
    min-height: 28px;
    accent-color: var(--pm-cyan);
}

.pm-angle-row {
    display: grid;
    grid-template-columns: 1fr 42px minmax(70px, 92px) 42px auto;
    gap: 6px;
    align-items: center;
    margin: 13px 0;
}

.pm-angle-row > label {
    color: var(--pm-muted);
    font-size: 13px;
}

.icon-button {
    display: inline-grid;
    place-items: center;
    width: 44px;
    min-width: 44px;
    height: 44px;
    padding: 0;
    font-size: 20px;
}

.pm-angle-input-wrap {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    height: 42px;
    border: 1px solid var(--pm-border);
    border-radius: 4px;
    background: #0f171d;
}

.pm-angle-input-wrap input {
    width: 100%;
    min-width: 0;
    height: 40px;
    border: 0;
    padding: 6px 2px 6px 8px;
    color: var(--pm-text);
    background: transparent;
    text-align: right;
}

.pm-angle-input-wrap span {
    padding-right: 7px;
    color: var(--pm-muted);
}

.pm-editor-panel {
    overflow: hidden;
}

.pm-editor-heading {
    margin: 0;
    padding: 16px 16px 8px;
}

.pm-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: space-between;
    align-items: center;
    min-height: 58px;
    padding: 7px 12px;
    border-top: 1px solid var(--pm-border-soft);
    border-bottom: 1px solid var(--pm-border-soft);
    background: #111a21;
}

.pm-toolbar-group,
.pm-segmented {
    display: inline-grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(44px, auto);
    gap: 4px;
}

.pm-segmented button {
    min-height: 40px;
    padding: 6px 10px;
    color: var(--pm-muted);
    border-color: var(--pm-border);
    background: var(--pm-surface-2);
    font-size: 13px;
}

.pm-segmented button.is-active {
    color: #071014;
    border-color: var(--pm-cyan);
    background: var(--pm-cyan);
}

.pm-canvas-viewport {
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    width: 100%;
    height: clamp(420px, 56vh, 720px);
    padding: 20px;
    overflow: auto;
    overscroll-behavior: contain;
    background:
        linear-gradient(45deg, #111920 25%, transparent 25%),
        linear-gradient(-45deg, #111920 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #111920 75%),
        linear-gradient(-45deg, transparent 75%, #111920 75%),
        #172129;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0;
    background-size: 20px 20px;
}

.pm-canvas-stack {
    position: relative;
    flex: 0 0 auto;
    max-width: none;
    max-height: none;
    background: #fff;
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.45);
}

.pm-canvas-stack canvas {
    display: block;
    width: 100%;
    height: 100%;
}

#overlayCanvas {
    position: absolute;
    inset: 0;
    touch-action: none;
    cursor: crosshair;
}

.pm-editor-empty {
    display: grid;
    gap: 6px;
    place-items: center;
    min-height: 230px;
    width: min(460px, 100%);
    padding: 28px;
    color: var(--pm-muted);
    border: 1px dashed var(--pm-border);
    text-align: center;
}

.pm-editor-empty strong {
    color: var(--pm-text);
    font-size: 18px;
}

.pm-editor-help {
    min-height: 43px;
    margin: 0;
    padding: 10px 16px;
    border-top: 1px solid var(--pm-border-soft);
}

.pm-output-summary {
    display: grid;
    gap: 3px;
    padding: 15px;
    border-left: 3px solid var(--pm-green);
    background: var(--pm-surface-2);
}

.pm-output-summary span,
.pm-output-summary small {
    color: var(--pm-muted);
}

.pm-output-summary strong {
    color: var(--pm-green);
    font: 800 19px/1.3 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.pm-save-format {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 14px;
}

.pm-safety-callout {
    margin-top: 16px;
    padding: 14px;
    border: 1px solid #826c3f;
    border-left: 3px solid var(--pm-amber);
    background: rgba(54, 45, 27, 0.62);
}

.pm-safety-callout strong {
    color: #ffe2a4;
}

.pm-safety-callout p {
    margin: 7px 0 0;
    color: #e7d9bb;
    font-size: 13px;
}

.pm-ad-reserve {
    min-height: 100px;
    margin: 28px 0;
    padding: 12px;
    border-top: 1px solid var(--pm-border-soft);
    border-bottom: 1px solid var(--pm-border-soft);
    color: #7f949e;
    text-align: center;
}

.pm-ad-reserve > span {
    font: 700 11px/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.pm-info-band {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    padding: 28px 0;
    border-top: 1px solid var(--pm-border-soft);
    border-bottom: 1px solid var(--pm-border-soft);
}

.pm-info-band article {
    min-width: 0;
}

.pm-info-band h2,
.pm-faq h2 {
    margin: 0 0 10px;
    font-size: 21px;
}

.pm-info-band p,
.pm-info-band ol {
    margin: 0;
    color: var(--pm-muted);
}

.pm-info-band ol {
    padding-left: 1.4em;
}

.pm-faq {
    max-width: 980px;
    margin: 0 auto;
    padding: 32px 0;
}

.pm-faq details {
    border-top: 1px solid var(--pm-border-soft);
}

.pm-faq details:last-child {
    border-bottom: 1px solid var(--pm-border-soft);
}

.pm-faq summary {
    padding: 15px 4px;
    color: var(--pm-text);
    font-weight: 700;
    cursor: pointer;
}

.pm-faq details p {
    margin: 0;
    padding: 0 4px 16px;
    color: var(--pm-muted);
}

.pm-comments-section {
    margin-top: 12px;
    padding: 26px 0;
    border-top: 1px solid var(--pm-border-soft);
}

.privacy-mask-app .pm-comments-section .app-comments,
.privacy-mask-app .pm-comments-section .app-comment-form-section {
    color: var(--pm-text);
    background: #151d25;
    border-color: #38505f;
}

.privacy-mask-app .pm-comments-section .app-comments h2,
.privacy-mask-app .pm-comments-section .app-comment-form-section h2,
.privacy-mask-app .pm-comments-section .app-comments strong,
.privacy-mask-app .pm-comments-section .app-comment-form-section label {
    color: var(--pm-text);
}

.privacy-mask-app .pm-comments-section .app-comment-body,
.privacy-mask-app .pm-comments-section .app-comments-empty,
.privacy-mask-app .pm-comments-section .app-comment-admin-reply p {
    color: #d7e6eb;
}

.privacy-mask-app .pm-comments-section .app-comment-meta,
.privacy-mask-app .pm-comments-section .app-comment-date,
.privacy-mask-app .pm-comments-section .app-comment-admin-reply-date {
    color: #aec4ce;
}

.privacy-mask-app .pm-comments-section input,
.privacy-mask-app .pm-comments-section textarea,
.privacy-mask-app .pm-comments-section select {
    color: var(--pm-text);
    border-color: #527080;
    background: #0f171d;
}

.privacy-mask-app .pm-comments-section input:focus,
.privacy-mask-app .pm-comments-section textarea:focus,
.privacy-mask-app .pm-comments-section select:focus {
    border-color: var(--pm-cyan);
    outline: 3px solid rgba(243, 191, 99, 0.88);
    outline-offset: 2px;
}

.privacy-mask-app .pm-comments-section button {
    color: #061115;
    border-color: var(--pm-cyan-deep);
    background: var(--pm-cyan);
}

.privacy-mask-app .pm-comments-section .app-comment-admin-reply {
    border-left-color: var(--pm-cyan);
    background: rgba(30, 58, 68, 0.9);
}

.pm-related-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 20px;
    padding: 22px 0;
    border-top: 1px solid var(--pm-border-soft);
}

.pm-footer {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px 20px;
    padding: 22px 0 4px;
    color: var(--pm-muted);
    border-top: 1px solid var(--pm-border-soft);
    font: 600 12px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (max-width: 1180px) {
    .pm-workspace {
        grid-template-columns: minmax(230px, 280px) minmax(0, 1fr);
    }

    .pm-save-panel {
        grid-column: 1 / -1;
        display: grid;
        grid-template-columns: minmax(180px, 1fr) minmax(220px, 1fr) minmax(260px, 1.5fr);
        gap: 14px;
        align-items: start;
    }

    .pm-save-panel .pm-panel-heading {
        grid-column: 1 / -1;
        margin-bottom: 0;
    }

    .pm-save-panel .pm-panel-help {
        margin: 0;
    }
}

@media (max-width: 820px) {
    .pm-shell {
        padding-inline: 14px;
    }

    .pm-load-band,
    .pm-workspace,
    .pm-info-band,
    .pm-save-panel {
        grid-template-columns: 1fr;
    }

    .pm-load-actions {
        grid-template-columns: 1fr 1fr;
    }

    .pm-file-summary {
        min-height: 86px;
    }

    .pm-regions-panel,
    .pm-editor-panel,
    .pm-save-panel {
        grid-column: auto;
    }

    .pm-editor-panel {
        order: -1;
    }

    .pm-canvas-viewport {
        height: min(66vh, 620px);
        min-height: 410px;
        padding: 14px;
    }

    .pm-save-panel .pm-panel-heading {
        grid-column: auto;
    }

    .pm-info-band {
        gap: 0;
    }

    .pm-info-band article {
        padding: 20px 0;
        border-bottom: 1px solid var(--pm-border-soft);
    }

    .pm-info-band article:last-child {
        border-bottom: 0;
    }
}

@media (max-width: 560px) {
    .pm-shell {
        padding: 12px 10px 28px;
    }

    .pm-header {
        padding-top: 8px;
    }

    .pm-header .pm-kicker {
        margin-top: 18px;
    }

    .pm-header h1 {
        font-size: 28px;
    }

    .pm-header h1 span {
        display: block;
    }

    .pm-header h1 span + span {
        margin-left: 0;
    }

    .pm-lead {
        font-size: 15px;
    }

    .pm-tool {
        padding-top: 16px;
    }

    .pm-load-actions,
    .pm-save-format {
        grid-template-columns: 1fr 1fr;
    }

    .pm-drop-zone {
        min-height: 108px;
        padding: 16px;
    }

    .pm-regions-panel,
    .pm-save-panel {
        padding: 14px;
    }

    .pm-toolbar {
        justify-content: flex-start;
    }

    .pm-toolbar-group {
        flex: 0 0 auto;
    }

    .pm-segmented {
        flex: 1 1 auto;
    }

    .pm-segmented button {
        padding-inline: 8px;
    }

    .pm-zoom-controls {
        width: 100%;
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .pm-canvas-viewport {
        height: 470px;
        min-height: 0;
        padding: 10px;
    }

    .pm-angle-row {
        grid-template-columns: 1fr 42px minmax(64px, 84px) 42px;
    }

    .pm-angle-row .compact {
        grid-column: 1 / -1;
        width: 100%;
    }

    .pm-related-links,
    .pm-footer {
        flex-direction: column;
    }
}

@media (max-width: 340px) {
    .pm-header h1 {
        font-size: 27px;
    }

    .pm-load-actions {
        grid-template-columns: 1fr;
    }

    .pm-panel-heading h2,
    .pm-info-band h2,
    .pm-faq h2 {
        font-size: 19px;
    }

    .pm-method-picker span {
        font-size: 13px;
    }

    .pm-canvas-viewport {
        height: 430px;
    }
}

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