:root{--primary: #2563eb;--primary-dark: #1d4ed8;--bg: #f5f5f4;--card: #ffffff;--text: #1c1917;--muted: #78716c;--danger: #dc2626;--border: #e7e5e4}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{margin:0;padding:0;height:100%}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,sans-serif;overscroll-behavior:none}.screen{display:flex;flex-direction:column;height:100dvh}.app-header{display:flex;align-items:center;gap:10px;padding:calc(env(safe-area-inset-top) + 10px) 14px 10px;background:var(--primary);color:#fff;flex-shrink:0}.app-header h1{font-size:17px;font-weight:700;margin:0;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.header-btn{background:#fff3;color:#fff;border:none;text-decoration:none}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:12px;padding:12px 16px;font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:6px}.btn:disabled{opacity:.35}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:active{background:var(--primary-dark)}.btn-danger{color:var(--danger);border-color:#fecaca}.btn-small{padding:7px 12px;font-size:13px;border-radius:9px}.btn-big{width:100%;padding:15px 16px;font-size:16px}.btn-row{padding:12px 16px calc(env(safe-area-inset-bottom) + 12px)}.btn-row .btn{width:100%}.btn-col{display:flex;flex-direction:column;gap:10px;width:100%}.center-text{text-align:center}.sheet-list{flex:1;overflow-y:auto;padding:14px 14px calc(env(safe-area-inset-bottom) + 96px)}.cards{display:grid;grid-template-columns:1fr 1fr;gap:12px}.card{background:var(--card);border-radius:14px;overflow:hidden;text-decoration:none;color:inherit;box-shadow:0 1px 3px #00000014}.card-thumb{aspect-ratio:210 / 297;background:#eee;overflow:hidden}.card-thumb img{width:100%;height:100%;object-fit:cover;display:block}.card-body{padding:8px 10px 10px}.card-label{font-size:14px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-meta{font-size:12px;color:var(--muted);margin-top:2px}.card-expire{font-size:11px;color:#b45309;margin-top:4px}.empty{text-align:center;color:var(--muted);padding:48px 24px;line-height:1.8}.fab{position:fixed;right:20px;bottom:calc(env(safe-area-inset-bottom) + 20px);width:60px;height:60px;border-radius:50%;background:var(--primary);color:#fff;font-size:32px;line-height:1;display:flex;align-items:center;justify-content:center;text-decoration:none;box-shadow:0 4px 12px #2563eb66}.install-banner{display:flex;align-items:center;gap:10px;margin:12px 14px 0;padding:12px;background:#eff6ff;border:1px solid #bfdbfe;border-radius:12px}.install-text{flex:1;font-size:13px;line-height:1.5}.install-actions{display:flex;gap:6px;flex-shrink:0}.capture-main{flex:1;display:flex;flex-direction:column;justify-content:center;padding:24px 20px calc(env(safe-area-inset-bottom) + 24px);gap:18px;overflow-y:auto}.capture-guide{font-size:16px;font-weight:700;text-align:center;margin:0}.capture-tips{color:var(--muted);font-size:13px;line-height:1.9;margin:0;padding-left:20px}.field{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}.field input{font-size:16px;padding:12px;border:1px solid var(--border);border-radius:10px;background:#fff;color:var(--text)}.corner-editor{flex:1;display:flex;flex-direction:column;min-height:0}.corner-canvas-wrap{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;background:#292524}.hint{font-size:12px;color:var(--muted);text-align:center;margin:8px 12px 0}.hint.center{margin-top:16px}.erase-editor{flex:1;display:flex;flex-direction:column;min-height:0}.erase-canvas-wrap{flex:1;min-height:0;position:relative}.erase-canvas-wrap canvas{display:block}.erase-toolbar{flex-shrink:0;background:var(--card);border-top:1px solid var(--border);padding:10px 12px calc(env(safe-area-inset-bottom) + 10px);display:flex;flex-direction:column;gap:8px}.slider-row{display:flex;align-items:center;gap:10px}.slider-label{font-size:12px;color:var(--muted);flex-shrink:0}.slider-row input[type=range]{flex:1;accent-color:var(--primary)}.slider-value{font-size:12px;color:var(--muted);width:26px;text-align:right}.tool-row{display:flex;gap:6px}.tool-row .btn{flex:1;padding:10px 4px;font-size:13px}.btn.tool.active{background:#eff6ff;border-color:var(--primary);color:var(--primary)}.detail-main{flex:1;overflow-y:auto;padding:14px 16px calc(env(safe-area-inset-bottom) + 20px);display:flex;flex-direction:column;gap:14px}.side-tabs{display:flex;gap:8px}.side-tabs .tab{flex:1}.btn.tab.active{background:#eff6ff;border-color:var(--primary);color:var(--primary)}.preview-wrap{display:flex;justify-content:center}.preview{max-width:100%;max-height:55dvh;border-radius:8px;box-shadow:0 1px 4px #00000026}.print-guide{font-size:13px;line-height:1.7;background:#fffbeb;border:1px solid #fde68a;border-radius:10px;padding:10px 12px}.busy-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:100}.busy-box{background:#fff;border-radius:14px;padding:20px 28px;font-size:15px;font-weight:600}