:root{--bg:#f6f7f8;--surface:#fff;--surface-2:#eef1f3;--text:#15191d;--muted:#5f6b76;--border:#dde2e6;--accent:#0f766e;--accent-ink:#fff;--accent-soft:#d6efec;--danger:#c2410c;--stage:#1d2226;--radius:14px;--shadow:0 1px 2px #0000000f, 0 4px 16px #0000000d;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root{--bg:#0f1214;--surface:#181c1f;--surface-2:#22282c;--text:#e8ecef;--muted:#9aa6b0;--border:#2c3337;--accent:#2dd4bf;--accent-ink:#062521;--accent-soft:#123a36;--danger:#fb923c;--stage:#0a0c0d;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,Yu Gothic UI,sans-serif;font-size:15px;line-height:1.6}button,input,textarea,select{font:inherit;color:inherit}a{color:var(--accent)}.app{max-width:720px;min-height:100dvh;padding-bottom:env(safe-area-inset-bottom);flex-direction:column;margin:0 auto;display:flex}.topbar{z-index:10;padding:calc(10px + env(safe-area-inset-top)) 16px 10px;background:color-mix(in srgb, var(--bg) 88%, transparent);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);align-items:center;gap:8px;display:flex;position:sticky;top:0}.topbar h1{flex:1;margin:0;font-size:17px;font-weight:700}.main{flex-direction:column;flex:1;gap:16px;padding:16px;display:flex}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.card h2{margin:0 0 8px;font-size:16px}.card h3{margin:12px 0 6px;font-size:15px}.muted{color:var(--muted);font-size:13px}.small{font-size:12px}.btn{border:1px solid var(--border);background:var(--surface);cursor:pointer;min-height:44px;color:var(--text);border-radius:12px;justify-content:center;align-items:center;gap:6px;padding:0 16px;font-weight:600;text-decoration:none;display:inline-flex}.btn:disabled{opacity:.5;cursor:default}.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.btn.ghost{color:var(--accent);background:0 0;border-color:#0000;padding:0 8px}.btn.danger{color:var(--danger)}.btn.block{width:100%}.btn.sm{min-height:36px;padding:0 12px;font-size:14px}.row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.grow{flex:1}.picker{text-align:center;border:2px dashed var(--border);background:var(--surface);border-radius:20px;flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:40px 16px;display:flex}.picker .icon{font-size:48px;line-height:1}.picker input{display:none}.steps{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.steps div{background:var(--surface);border:1px solid var(--border);text-align:center;border-radius:12px;padding:10px;font-size:13px}.steps b{color:var(--accent);font-size:20px;display:block}.tabs{background:var(--surface-2);border-radius:12px;grid-template-columns:repeat(4,1fr);gap:4px;padding:4px;display:grid}.tabs button{min-height:38px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:9px;font-size:13px;font-weight:600}.tabs button[aria-selected=true]{background:var(--surface);color:var(--text);box-shadow:var(--shadow)}.chips{flex-wrap:wrap;gap:8px;display:flex}.chip{border:1px solid var(--border);background:var(--surface);cursor:pointer;border-radius:999px;min-height:36px;padding:0 14px;font-size:14px}.chip[aria-pressed=true]{background:var(--accent-soft);border-color:var(--accent);color:var(--text);font-weight:600}.options{gap:8px;display:grid}.option{text-align:left;border:1px solid var(--border);background:var(--surface);cursor:pointer;border-radius:12px;align-items:center;gap:12px;padding:10px 12px;display:flex}.option[aria-pressed=true]{border-color:var(--accent);background:var(--accent-soft)}.option .ratio{flex:none;place-items:center;width:40px;height:40px;display:grid}.option .ratio span{background:var(--muted);opacity:.5;border-radius:2px;display:block}.option[aria-pressed=true] .ratio span{background:var(--accent);opacity:1}.option b{font-size:15px;display:block}.segmented{background:var(--surface-2);border-radius:10px;gap:3px;padding:3px;display:inline-flex}.segmented button{cursor:pointer;min-height:34px;color:var(--muted);background:0 0;border:0;border-radius:8px;padding:0 14px;font-size:14px}.segmented button[aria-pressed=true]{background:var(--surface);color:var(--text);box-shadow:var(--shadow);font-weight:600}.stage{background:var(--stage);border-radius:var(--radius);position:relative;overflow:hidden}.crop-stage{height:min(62vh,520px)}.preview-stage{justify-content:center;align-items:center;min-height:240px;padding:12px;display:flex}.preview-stage canvas,.preview-stage img{touch-action:none;max-width:100%;max-height:56vh;display:block;box-shadow:0 2px 12px #0006}.preview-stage.paper img{background:#fff}.slider{grid-template-columns:92px 1fr 40px;align-items:center;gap:8px;min-height:40px;display:grid}.slider label{font-size:14px}.slider output{text-align:right;font-variant-numeric:tabular-nums;color:var(--muted);font-size:13px}input[type=range]{width:100%;accent-color:var(--accent);height:28px}.stamps{grid-template-columns:repeat(8,1fr);gap:6px;display:grid}.stamps button{aspect-ratio:1;border:1px solid var(--border);background:var(--surface);cursor:pointer;border-radius:10px;padding:0;font-size:22px}.swatches{flex-wrap:wrap;gap:8px;display:flex}.swatch{border:2px solid var(--border);cursor:pointer;border-radius:50%;width:32px;height:32px;padding:0}.swatch[aria-pressed=true]{outline:3px solid var(--accent);outline-offset:2px}textarea,input[type=text],input[type=url]{border:1px solid var(--border);background:var(--surface);border-radius:10px;width:100%;padding:10px 12px;font-size:16px}.bottombar{padding:12px 16px calc(12px + env(safe-area-inset-bottom));background:color-mix(in srgb, var(--bg) 90%, transparent);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--border);gap:8px;display:flex;position:sticky;bottom:0}.bottombar .btn{flex:1}.info{grid-template-columns:auto 1fr;gap:4px 12px;margin:0;font-size:14px;display:grid}.info dt{color:var(--muted)}.info dd{font-variant-numeric:tabular-nums;margin:0}.notice{background:var(--accent-soft);border-radius:12px;padding:10px 12px;font-size:13px}.error{color:var(--danger);font-size:14px}.link-box{gap:8px;display:flex}.link-box input{flex:1;min-width:0}.guide details{border:1px solid var(--border);background:var(--surface);border-radius:12px;margin-top:8px;padding:0 12px}.guide summary{cursor:pointer;padding:12px 28px 12px 0;font-weight:700;line-height:1.4;list-style:none;display:block;position:relative}.guide summary::-webkit-details-marker{display:none}.guide summary:after{content:"＋";color:var(--muted);position:absolute;top:50%;right:0;transform:translateY(-50%)}.guide details[open] summary:after{content:"－"}.guide .stores{color:var(--muted);font-size:12px;font-weight:400;display:block}.guide ol{margin:4px 0 8px;padding-left:20px}.guide li{margin:4px 0}.guide .links{flex-wrap:wrap;gap:8px;padding-bottom:12px;display:flex}.spinner{border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:28px;height:28px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.center{text-align:center;place-items:center;gap:12px;padding:32px 0;display:grid}