:root{color-scheme:light;--bg:#f5f3ec;--ink:#252820;--dim:#62665c;--accent:#984329;--surface:#eae8df;--line:#d9d9cf;--shadow:0 18px 40px #23281e15}
:root[data-theme=dark]{color-scheme:dark;--bg:#171c18;--ink:#f5f3ec;--dim:#b5beb1;--accent:#e8a386;--surface:#252d26;--line:#3e493e;--shadow:0 18px 40px #0004}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--bg:#171c18;--ink:#f5f3ec;--dim:#b5beb1;--accent:#e8a386;--surface:#252d26;--line:#3e493e;--shadow:0 18px 40px #0004}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'Hiragino Sans','Noto Sans JP',sans-serif;font-size:16px;line-height:1.8;-webkit-text-size-adjust:100%}
body.modal-open{overflow:hidden}
button,textarea{font:inherit;color:inherit}
button,a,summary{-webkit-tap-highlight-color:transparent;touch-action:manipulation}
button{cursor:pointer;border:0;min-height:44px}
button:disabled{opacity:.45;cursor:default}
a{color:inherit;text-underline-offset:5px}
button:focus-visible,a:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
[hidden]{display:none!important}
.wrap{width:min(1168px,calc(100% - 80px));margin-inline:auto}
.eyebrow{font-size:12px;letter-spacing:.14em;font-weight:600;margin:0 0 14px;color:var(--dim)}
.skip{position:fixed;left:20px;top:12px;z-index:100;transform:translateY(-150%);padding:10px;background:var(--bg);min-height:44px}
.skip:focus{transform:none}
.masthead{display:flex;align-items:center;justify-content:space-between;padding-block:22px;gap:12px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:14px;font-weight:600;min-height:44px}
.brand-mark{height:30px;width:auto;display:block;flex:0 0 auto;filter:invert(1)}
:root[data-theme=light] .brand-mark{filter:none}
@media(prefers-color-scheme:light){:root:not([data-theme=dark]) .brand-mark{filter:none}}
.brand small{display:block;font-size:12px;letter-spacing:.08em}
.head-actions{display:flex;align-items:center;gap:24px;font-size:14px;flex-shrink:0}
.head-actions a{text-decoration:none;display:flex;align-items:center;min-height:44px}
.icon-button{background:transparent;width:44px;height:44px;flex-shrink:0;display:grid;place-items:center;font-size:24px;border-radius:50%}
.icon-button:hover{background:var(--surface)}
.hero{padding-block:20px 30px}
.hero h1{font-family:'Hiragino Mincho ProN',serif;font-weight:500;font-size:clamp(28px,4.5vw,48px);line-height:1.5;letter-spacing:.015em;margin:0 0 12px}
.hero-description{margin:0;color:var(--dim);font-size:16px;line-height:1.9}
.hero-description br{display:none}
.howto-box{background:var(--surface);padding:20px 24px 24px;border-radius:12px;margin-bottom:38px}
.howto-box h2{font-family:inherit;font-size:16px;font-weight:700;margin:0 0 16px}
.howto-steps{display:grid;grid-template-columns:1fr .9fr 1.7fr 1fr;gap:18px;list-style:none;padding:0;margin:0}
.howto-steps li{display:flex;align-items:flex-start;gap:10px;min-width:0;line-height:1.7}
.howto-n{flex:0 0 27px;width:27px;height:27px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;line-height:1;border:1.5px solid currentColor}
.howto-steps b{font-size:14px;font-weight:600;display:block}
.howto-steps small{display:block;font-size:14px;color:var(--dim);margin-top:3px}
h2{font-family:'Hiragino Mincho ProN',serif;font-weight:500;font-size:26px;margin:0}
.gallery-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;gap:12px}
.count{font-size:14px;color:var(--dim);margin:0;white-space:nowrap}
.count span{font-size:26px;color:var(--ink);margin-right:3px}
.filters{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0 6px}
.filter-row{display:flex;align-items:baseline;gap:18px;margin-bottom:12px}
.filter-row h3{font-size:14px;flex:0 0 44px;margin:0}
.filter-buttons{display:flex;flex-wrap:wrap;gap:7px;min-width:0}
.filter-button{border:1px solid var(--line);border-radius:5px;background:transparent;padding:7px 12px;font-size:14px;line-height:1.6}
.filter-button[aria-pressed=true]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.filter-button:hover{border-color:var(--accent)}
.filter-status{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;color:var(--dim)}
.filter-status p{margin:0}
#reset-filters{background:transparent;text-decoration:underline;text-underline-offset:4px;font-size:14px;flex-shrink:0;padding:0}
.preview-note{font-size:14px;color:var(--dim);margin:16px 0 25px;max-width:78ch}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:34px 26px;align-items:start}
.card{min-width:0;width:100%;position:relative;background:none;text-align:left;padding:0;align-self:start;transition:transform .25s;overflow-wrap:anywhere}
.card:hover{transform:translateY(-4px)}
.card[aria-pressed=true] .preview{outline:2px solid var(--accent);outline-offset:3px}
.card-meta{display:flex;justify-content:space-between;align-items:center;margin:0 0 10px;font-size:14px;color:var(--dim);gap:8px}
.ratio-badge{border:1px solid var(--line);border-radius:4px;font-size:12px;line-height:1.5;padding:3px 8px}
.preview{display:block;position:relative;overflow:hidden;background:var(--surface);isolation:isolate;border-radius:12px;box-shadow:var(--shadow);width:100%}
.preview img{position:absolute;width:100%;height:100%;inset:0;object-fit:cover}
.preview .after{clip-path:inset(0 0 0 50%)}
.divider{position:absolute;z-index:2;inset:0 auto 0 50%;width:1px;background:#fff9}
.before-label,.after-label{position:absolute;z-index:3;bottom:10px;font-size:12px;line-height:1.5;padding:4px 8px;border-radius:4px;background:#171c18d9;color:white}
.before-label{left:10px}.after-label{right:10px}
/* 写真は4枚だけ。背景加工は効果のイメージ。素材自体は変更しない。 */
.edit-cam-portrait .after{mask-image:radial-gradient(ellipse 22% 48% at 67% 54%,transparent 55%,#000 100%)}
.edit-cam-white::after{content:'';position:absolute;inset:0 0 0 50%;background:radial-gradient(ellipse at center,transparent 22%,#ffffffe6 100%);z-index:1;pointer-events:none}
.edit-fix-crop .before{transform:rotate(-2deg) scale(1.06)}
.card-title{display:block;font-family:'Hiragino Mincho ProN',serif;font-size:23px;font-weight:500;line-height:1.6;margin-top:14px}
.card-description{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:14px;line-height:1.85;color:var(--dim);margin-top:6px}
.card-link{display:block;font-size:14px;color:var(--accent);margin-top:10px}
footer{padding-block:26px 40px;border-top:1px solid var(--line);font-size:14px;color:var(--dim);margin-top:64px!important}
footer p{margin:0 0 6px}
.footer-line{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;gap:12px}
footer details{margin-top:16px}footer li{margin-bottom:8px;overflow-wrap:anywhere}footer ul{padding-left:22px}
summary{cursor:pointer;min-height:44px;padding-block:8px;font-size:14px}
.sheet{padding:0;color:var(--ink);background:var(--bg);border:0;border-radius:7px;width:min(1040px,calc(100vw - 64px));max-width:none;max-height:calc(100dvh - 56px);overflow:auto;overscroll-behavior:contain;box-shadow:var(--shadow)}
.sheet::backdrop{background:#090f0cd9;backdrop-filter:blur(7px)}
.sh-head{position:sticky;top:0;z-index:4;display:flex;align-items:center;justify-content:space-between;padding:12px 24px;background:var(--bg);gap:20px}
.sh-head .eyebrow{margin:0}
.sh-cols{display:grid;grid-template-columns:1fr 1.05fr;gap:32px;padding:4px 32px 32px;align-items:start}
.sh-preview-side{position:sticky;top:80px;padding:16px;background:var(--surface);min-width:0}
.sh-preview-side .preview{max-width:360px;margin:auto}
.detail-content{min-width:0;overflow-wrap:anywhere}
.detail-position{font-size:14px;color:var(--dim);letter-spacing:.12em;margin:8px 0}
.detail-content h2{font-size:30px;font-weight:600;line-height:1.6;margin:0 0 10px}
.detail-content p{font-size:14px;margin:10px 0}
.output-size{color:var(--accent);font-weight:600}
.size-note{background:var(--surface);padding:12px;border-left:2px solid var(--accent)}
.detail-notes{margin-block:12px 18px}.detail-notes h3{font-size:14px;margin:10px 0 0}
.hint,.cta-note{font-size:14px;line-height:1.8;color:var(--dim);margin:10px 0 16px}
.go{background:var(--accent);color:var(--bg);width:100%;min-height:54px;padding:12px 16px;border-radius:4px;font-size:16px;font-weight:600}
.go:hover{opacity:.9}
.copy-button{width:100%;padding:10px;border:1px solid var(--line);border-radius:4px;background:transparent;font-size:14px;margin-top:10px}
.cta-memo{font-size:14px;line-height:1.7;margin:0 0 8px}
.style-nav{display:flex;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:10px;margin-top:18px}
.style-nav button{background:none;font-size:14px;padding:8px 0}
textarea{display:block;width:100%;resize:vertical;border:1px solid var(--line);border-radius:4px;padding:12px;background:var(--bg);font-size:16px;line-height:1.7}
.notice{position:sticky;z-index:10;bottom:16px;margin:0 20px 16px;background:var(--ink);color:var(--bg);padding:14px 18px;border-radius:4px;font-size:14px}
.copy-area{position:fixed;top:0;left:0;width:1px;height:1px;min-height:0;opacity:0;padding:0}
@media(max-width:1000px){.wrap{width:calc(100% - 56px)}.grid{gap:26px 20px}.howto-steps{grid-template-columns:1fr 1fr}.card-title{font-size:21px}.head-actions{gap:12px}}
@media(max-width:700px){
  .wrap{width:calc(100% - 32px)}.masthead{padding-block:16px;gap:8px}.brand{gap:8px}.brand-mark{height:26px}.brand small{letter-spacing:0}.head-actions{gap:2px}
  .hero{padding-block:10px 24px}.hero .eyebrow{font-size:12px;letter-spacing:.06em}.hero-description{font-size:14px}.hero-description br{display:block}
  .howto-box{padding:18px 16px;margin-bottom:28px}.howto-steps{grid-template-columns:1fr;gap:14px}.howto-steps li{align-items:center}.howto-steps small{margin-top:0}
  h2{font-size:22px}.gallery-heading{margin-bottom:14px}.count{font-size:12px}.count span{font-size:24px}
  .filter-row{display:block;margin-bottom:16px}.filter-row h3{margin-bottom:8px}.filter-buttons{gap:6px}.filter-button{padding:7px 9px;font-size:14px}.filter-status{align-items:flex-start;font-size:12px}.filter-status p{padding-top:8px}#reset-filters{font-size:12px}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 12px}.card-title{font-size:18px}.card-meta{flex-wrap:wrap;gap:4px;font-size:12px}.ratio-badge{font-size:12px;padding:2px 5px}.card-description{font-size:14px}
  .preview{border-radius:8px}.before-label,.after-label{font-size:12px;bottom:6px;padding:3px 4px}.before-label{left:4px}.after-label{right:4px}
  .footer-line{align-items:flex-start;flex-direction:column;gap:8px}
  .sheet{width:100%;height:100dvh;max-height:100dvh;margin:0;border-radius:0}.sh-head{padding:8px 16px}.sh-cols{display:block;padding:0 20px calc(190px + env(safe-area-inset-bottom))}.sh-preview-side{position:static;padding:12px;margin-bottom:20px}.sh-preview-side .preview{width:min(100%,240px)}
  .sh-preview-side .preview[style*="1080 / 1920"]{width:150px}.detail-content h2{font-size:26px}
  .cta{position:fixed;z-index:5;bottom:0;left:0;right:0;padding:10px 20px calc(12px + env(safe-area-inset-bottom));background:var(--bg);border-top:1px solid var(--line)}
  .notice{position:fixed;bottom:calc(158px + env(safe-area-inset-bottom));left:0;right:0;margin:0 20px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.card:hover{transform:none}}

/* サイズごとの見出し。ヘッダーの実測高を使い、拡大表示でも重なりを避ける。 */
html{scroll-padding-top:var(--header-height,88px)}
.masthead{position:sticky;top:0;z-index:20;background:var(--bg)}
.size-jumps{display:flex;flex-wrap:wrap;align-items:center;gap:0 18px;margin:-4px 0 16px;font-size:14px}
.size-jumps span{font-size:12px;color:var(--dim)}
.size-jumps a{display:inline-flex;align-items:center;min-height:44px;white-space:nowrap;color:var(--accent)}
.size-jumps a[aria-disabled=true]{color:var(--dim);opacity:.55;cursor:default}
.size-section{margin-bottom:38px}
.size-heading{position:sticky;top:var(--header-height,88px);z-index:10;background:var(--bg);display:flex;align-items:center;gap:14px;padding:16px 0;margin-bottom:20px;scroll-margin-top:12px}
.has-divider .size-heading{border-top:1px solid var(--line)}
.size-icon{flex:0 0 56px;display:flex;align-items:center;justify-content:center}
.size-original{font-size:12px;color:var(--dim);white-space:nowrap}
.size-shape{display:block;border:1px solid var(--ink);background:transparent}
.size-heading-text{flex:1;min-width:0}
.size-heading h3{font-family:'Hiragino Mincho ProN',serif;font-weight:500;font-size:22px;line-height:1.5;margin:0}
.size-heading p{font-size:14px;color:var(--dim);line-height:1.7;margin:4px 0 0;overflow-wrap:anywhere}
.size-count{flex-shrink:0;align-self:flex-start;font-size:14px;color:var(--dim);padding-top:3px}
@media(max-width:700px){.size-heading{gap:10px}.size-heading h3{font-size:20px}.size-heading p{font-size:12px}.size-icon{flex-basis:48px}.size-jumps{gap:0 16px}}