@charset "UTF-8";
/* CSS Document */
/* 画像鉛筆画・スケッチ変換ツール */
/* みんなの知識 ちょっと便利帳 */
/* 2026-11-09 */

/* ルート：全体を囲むボーダー（3px / 角丸4px / 上下マージン20px・左右0） */
.skt {
    --skt-main: #57534e;
    --skt-main-dark: #292524;
    --skt-main-soft: #f5f5f4;
    --skt-frame: #78716c;
    --skt-text: #1e293b;
    --skt-sub: #64748b;
    --skt-line: #e2e8f0;
    --skt-bg: #f8fafc;
    --skt-danger: #e11d48;

    display: block;
    box-sizing: border-box;
    max-width: 100%;
    margin: 20px 0;
    padding: 16px;
    border: 3px solid var(--skt-frame);
    border-radius: 4px;
    background: #fff;
    color: var(--skt-text);
    font-family: inherit;
    font-size: 16px;
    line-height: 1.6;
    text-align: left;
}
.skt *,
.skt *::before,
.skt *::after {
    box-sizing: border-box;
}
.skt .skt-hidden {
    display: none !important;
}

/* タイトル（中央寄せ） */
.skt .skt-header {
    margin: 0 0 20px;
    text-align: center;
}
.skt .skt-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 0;
    padding: 0;
    border: 0;
    background: none;
    color: var(--skt-main-dark);
    font-size: 24px;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: normal;
    text-align: center;
}
.skt .skt-title::before,
.skt .skt-title::after,
.skt .skt-heading::before,
.skt .skt-heading::after {
    content: none;
}
.skt .skt-title svg {
    flex: none;
    width: 32px;
    height: 32px;
}
.skt .skt-lead {
    margin: 4px 0 0;
    color: var(--skt-sub);
    font-size: 14px;
    text-align: center;
}

/* セクション */
.skt .skt-body {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.skt .skt-section {
    margin: 0;
    padding: 20px;
    border: 1px solid var(--skt-line);
    border-radius: 4px;
    background: #fff;
}
.skt .skt-heading {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 12px;
    padding: 0;
    border: 0;
    background: none;
    color: var(--skt-text);
    font-size: 18px;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: normal;
}
.skt .skt-step {
    display: inline-flex;
    flex: none;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--skt-main);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
}

/* ドロップゾーン */
.skt .skt-drop {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 32px 16px;
    border: 2px dashed #a8a29e;
    border-radius: 4px;
    background: var(--skt-main-soft);
    text-align: center;
    cursor: pointer;
    transition: border-color .15s, background-color .15s;
}
.skt .skt-drop:hover,
.skt .skt-drop:focus-visible,
.skt .skt-drop.skt-dragover {
    border-color: var(--skt-main);
    background: #e7e5e4;
    outline: none;
}
.skt .skt-drop svg {
    width: 48px;
    height: 48px;
    color: var(--skt-main);
}
.skt .skt-drop-main {
    margin: 0;
    font-weight: 600;
}
.skt .skt-drop-sub {
    margin: 0;
    color: var(--skt-sub);
    font-size: 14px;
}
.skt .skt-link {
    color: var(--skt-main);
    font-weight: 600;
    text-decoration: underline;
}
.skt .skt-hint {
    margin: 8px 0 0;
    color: var(--skt-sub);
    font-size: 12px;
}
.skt .skt-fileinfo {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px 12px;
    margin: 12px 0 0;
    padding: 10px 12px;
    border-radius: 4px;
    background: var(--skt-main-soft);
    color: var(--skt-main-dark);
    font-size: 14px;
    font-weight: 600;
    word-break: break-all;
}

/* 作業エリア（左：プレビュー／右：設定） */
.skt .skt-work {
    display: block;
}
.skt .skt-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px 28px;
    margin-top: 20px;
    align-items: start;
}
.skt .skt-controls .skt-wide {
    grid-column: 1 / -1;
}
.skt .skt-controls .skt-group + .skt-group {
    margin-top: 0;
}
.skt .skt-stage {
    padding: 0;
    border: 0;
    border-radius: 4px;
    background: transparent;
}
.skt .skt-section.skt-section-wide {
    padding: 14px;
}
.skt .skt-compare {
    position: relative;
    display: block;
    width: fit-content;
    max-width: 100%;
    margin: 0 auto;
    line-height: 0;
    background: #fff;
    cursor: ew-resize;
    touch-action: pan-y;
    user-select: none;
    -webkit-user-select: none;
}
.skt .skt-compare canvas {
    display: block;
    width: 100%;
    height: auto;
    max-width: 100%;
    margin: 0;
}
.skt .skt-compare #skt-view {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
}
.skt .skt-divider {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 0;
    border-left: 2px solid #fff;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, .35);
    pointer-events: none;
}
.skt .skt-badge {
    position: absolute;
    top: 8px;
    padding: 2px 8px;
    border-radius: 10px;
    background: rgba(0, 0, 0, .6);
    color: #fff;
    font-size: 12px;
    line-height: 1.5;
    pointer-events: none;
}
.skt .skt-badge-l { left: 8px; }
.skt .skt-badge-r { right: 8px; }
.skt .skt-cmp-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 12px 0 0;
    font-size: 13px;
    color: var(--skt-sub);
}
.skt .skt-cmp-row span { flex: none; }
.skt .skt-working {
    margin: 8px 0 0;
    color: var(--skt-sub);
    font-size: 12px;
    text-align: center;
    min-height: 18px;
}

/* 読み込んだ画像の一覧 */
.skt .skt-thumbs-wrap {
    margin: 0 0 16px;
}
.skt .skt-thumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.skt .skt-adddrop {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    width: 100%;
    margin: 10px 0 0;
    padding: 10px 12px;
    border: 2px dashed #a8a29e;
    border-radius: 4px;
    background: var(--skt-main-soft);
    color: var(--skt-text);
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.5;
    cursor: pointer;
    transition: border-color .15s, background-color .15s;
}
.skt .skt-adddrop small {
    color: var(--skt-sub);
    font-size: 12px;
    font-weight: 400;
}
.skt .skt-adddrop:hover,
.skt .skt-adddrop.skt-dragover {
    border-color: var(--skt-main);
    background: #e7e5e4;
}
.skt .skt-thumb {
    position: relative;
    width: 72px;
    height: 72px;
    border: 2px solid var(--skt-line);
    border-radius: 4px;
    background: #fff;
}
.skt .skt-thumb.skt-thumb-on {
    border-color: var(--skt-main);
    box-shadow: 0 0 0 2px #d6d3d1;
}
.skt .skt-thumb-pick {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    border: 0;
    border-radius: 2px;
    overflow: hidden;
    background: #f1f5f9;
    cursor: pointer;
}
.skt .skt-thumb-pick img {
    display: block;
    width: 100%;
    height: 100%;
    margin: 0;
    object-fit: cover;
}
.skt .skt-thumb-del {
    position: absolute;
    top: -8px;
    right: -8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    margin: 0;
    padding: 0;
    border: 1px solid #cbd5e1;
    border-radius: 50%;
    background: #fff;
    color: #475569;
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
}
.skt .skt-thumb-del:hover {
    border-color: var(--skt-danger);
    color: var(--skt-danger);
}
.skt .skt-compare.skt-alpha #skt-view {
    background-color: #fff;
    background-image:
        linear-gradient(45deg, #d6d3d1 25%, transparent 25%),
        linear-gradient(-45deg, #d6d3d1 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #d6d3d1 75%),
        linear-gradient(-45deg, transparent 75%, #d6d3d1 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

/* 設定 */
.skt .skt-sub {
    margin: 0 0 10px;
    padding: 0 0 4px;
    border-bottom: 1px solid var(--skt-line);
    color: var(--skt-main-dark);
    font-size: 14px;
    font-weight: 700;
}
.skt .skt-group + .skt-group {
    margin-top: 20px;
}
.skt .skt-fname-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 24px;
    margin: 0;
    padding: 0;
    border: 0;
}
.skt .skt-radio {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
}
.skt .skt-radio input {
    flex: none;
    width: 18px;
    height: 18px;
    margin: 0;
    accent-color: var(--skt-main);
}
.skt .skt-field + .skt-field {
    margin-top: 12px;
}
.skt .skt-two > .skt-field + .skt-field {
    margin-top: 0;
}
.skt .skt-drop.skt-compact {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 4px 12px;
    padding: 12px 16px;
}
.skt .skt-drop.skt-compact svg {
    width: 28px;
    height: 28px;
}
.skt .skt-label {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 8px;
    margin: 0 0 4px;
    color: #334155;
    font-size: 14px;
    font-weight: 600;
}
.skt .skt-val {
    color: var(--skt-sub);
    font-size: 13px;
    font-weight: 500;
}
.skt .skt-input {
    display: block;
    width: 100%;
    height: 40px;
    margin: 0;
    padding: 6px 10px;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    background: #fff;
    box-shadow: none;
    color: var(--skt-text);
    font-family: inherit;
    font-size: 15px;
    line-height: 1.4;
}
.skt .skt-input:focus {
    border-color: var(--skt-main);
    outline: 2px solid #d6d3d1;
    outline-offset: 0;
}
.skt .skt-range {
    display: block;
    width: 100%;
    margin: 0;
    accent-color: var(--skt-main);
}
.skt .skt-ends {
    display: flex;
    justify-content: space-between;
    margin: 0;
    color: #94a3b8;
    font-size: 11px;
}
.skt .skt-two {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.skt .skt-modes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 8px;
}
.skt .skt-mode {
    position: relative;
    display: block;
    margin: 0;
    cursor: pointer;
}
.skt .skt-mode input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}
.skt .skt-mode > span {
    display: block;
    height: 100%;
    padding: 8px 8px;
    border: 2px solid var(--skt-line);
    border-radius: 4px;
    background: #fff;
    text-align: center;
}
.skt .skt-mode strong {
    display: block;
    color: var(--skt-text);
    font-size: 14px;
    line-height: 1.4;
}
.skt .skt-mode em {
    display: block;
    margin-top: 2px;
    color: var(--skt-sub);
    font-size: 11px;
    font-style: normal;
    line-height: 1.4;
}
.skt .skt-mode input:checked + span {
    border-color: var(--skt-main);
    background: var(--skt-main-soft);
}
.skt .skt-mode input:focus-visible + span {
    outline: 2px solid var(--skt-main);
    outline-offset: 1px;
}
.skt .skt-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.skt .skt-chip {
    margin: 0;
    padding: 6px 12px;
    border: 1px solid #cbd5e1;
    border-radius: 16px;
    background: #fff;
    color: var(--skt-text);
    font-family: inherit;
    font-size: 13px;
    cursor: pointer;
}
.skt .skt-chip:hover {
    border-color: var(--skt-main);
    background: var(--skt-main-soft);
}
.skt .skt-chip.skt-chip-on {
    border-color: var(--skt-main);
    background: var(--skt-main);
    color: #fff;
}

/* ボタン */
.skt .skt-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}
.skt .skt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 0;
    padding: 10px 16px;
    border: 1px solid transparent;
    border-radius: 4px;
    box-shadow: none;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
    text-decoration: none;
    cursor: pointer;
    transition: background-color .15s, border-color .15s;
}
.skt .skt-btn svg {
    flex: none;
    width: 18px;
    height: 18px;
}
.skt .skt-btn:disabled {
    opacity: .6;
    cursor: wait;
}
.skt .skt-btn-primary {
    background: var(--skt-main);
    color: #fff;
}
.skt .skt-btn-primary:hover:not(:disabled) {
    background: var(--skt-main-dark);
}
.skt .skt-btn-plain {
    border-color: #cbd5e1;
    background: #fff;
    color: var(--skt-text);
}
.skt .skt-btn-plain:hover:not(:disabled) {
    background: #f1f5f9;
}
.skt .skt-btn-danger {
    background: #fff1f2;
    color: var(--skt-danger);
}
.skt .skt-btn-danger:hover {
    background: #ffe4e6;
}
.skt .skt-status {
    margin: 10px 0 0;
    color: var(--skt-sub);
    font-size: 14px;
}
.skt .skt-status.skt-error {
    color: var(--skt-danger);
    font-weight: 600;
}
.skt .skt-note {
    margin: 20px 0 0;
    color: #94a3b8;
    font-size: 12px;
    text-align: center;
}

/* ===== ツール下の解説文（検索エンジン向けの本文を兼ねる） ===== */
.skt-article {
    --skt-main-dark: #292524;
    --skt-frame: #78716c;
    --skt-text: #1e293b;
    --skt-sub: #64748b;
    --skt-line: #e2e8f0;

    display: block;
    box-sizing: border-box;
    max-width: 100%;
    margin: 20px 0;
    padding: 20px;
    border: 3px solid var(--skt-frame);
    border-radius: 4px;
    background: #fff;
    color: var(--skt-text);
    font-family: inherit;
    font-size: 16px;
    line-height: 1.8;
    text-align: left;
}
.skt-article *,
.skt-article *::before,
.skt-article *::after {
    box-sizing: border-box;
}
.skt-article .skt-a-h2 {
    margin: 36px 0 14px;
    padding: 2px 0 6px 12px;
    border: 0;
    border-left: 4px solid var(--skt-frame);
    border-bottom: 1px solid var(--skt-line);
    background: none;
    color: var(--skt-text);
    font-size: 20px;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: normal;
}
.skt-article .skt-a-h2:first-child {
    margin-top: 0;
}
.skt-article .skt-a-h3 {
    margin: 22px 0 6px;
    padding: 0;
    border: 0;
    background: none;
    color: var(--skt-main-dark);
    font-size: 16px;
    font-weight: 700;
    line-height: 1.6;
    letter-spacing: normal;
}
.skt-article .skt-a-h2::before,
.skt-article .skt-a-h2::after,
.skt-article .skt-a-h3::before,
.skt-article .skt-a-h3::after {
    content: none;
}
.skt-article .skt-a-p {
    margin: 0 0 12px;
    padding: 0;
}
.skt-article .skt-a-ul,
.skt-article .skt-a-ol {
    margin: 0 0 12px;
    padding: 0 0 0 1.6em;
}
.skt-article .skt-a-ul { list-style: disc outside; }
.skt-article .skt-a-ol { list-style: decimal outside; }
.skt-article .skt-a-ul li,
.skt-article .skt-a-ol li {
    display: list-item;
    margin: 0 0 6px;
    padding: 0;
}
.skt-article .skt-a-scroll {
    margin: 0 0 12px;
    overflow-x: auto;
}
.skt-article .skt-a-table {
    width: 100%;
    min-width: 620px;
    margin: 0;
    border-collapse: collapse;
    font-size: 14px;
    line-height: 1.6;
}
.skt-article .skt-a-table th,
.skt-article .skt-a-table td {
    padding: 8px 10px;
    border: 1px solid var(--skt-line);
    text-align: left;
    vertical-align: top;
}
.skt-article .skt-a-table th {
    background: #f5f5f4;
    font-weight: 700;
    white-space: nowrap;
}

@media (max-width: 480px) {
    .skt {
        padding: 16px;
    }
    .skt .skt-section {
        padding: 14px;
    }
    .skt .skt-title {
        font-size: 20px;
    }
    .skt .skt-modes {
        grid-template-columns: 1fr 1fr;
    }
}