:root{--bg: #f1f5f9;--surface: #ffffff;--primary: #2563eb;--primary-dark: #1d4ed8;--text: #0f172a;--muted: #64748b;--border: #cbd5e1;--success: #16a34a;--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-left: env(safe-area-inset-left, 0px);--safe-right: env(safe-area-inset-right, 0px)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);overscroll-behavior:none;touch-action:manipulation;-webkit-user-select:none;user-select:none}.app{height:100vh;height:100dvh;width:100vw;display:flex;overflow:hidden}.screen{flex:1;display:flex;flex-direction:column;padding:calc(16px + var(--safe-top)) calc(16px + var(--safe-right)) calc(16px + var(--safe-bottom)) calc(16px + var(--safe-left))}.waiting{align-items:center;justify-content:center;text-align:center;cursor:pointer;background:radial-gradient(circle at 50% 30%,#ffffff 0%,var(--bg) 70%)}.waiting-inner{display:flex;flex-direction:column;align-items:center;gap:14px}.pen-icon{font-size:64px;line-height:1;animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.waiting h1{font-size:clamp(24px,4vw,34px);margin:0}.waiting p{color:var(--muted);font-size:clamp(15px,2.5vw,18px);margin:0}.saved-count{margin-top:8px;font-size:14px;color:var(--muted)}.event-theme{position:relative;background-color:#0f172a;background-size:cover;background-position:center;color:#fff;overflow:hidden}.event-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(180deg,#0f172a8c,#0f172abf);pointer-events:none}.event-theme .waiting-inner{position:relative;z-index:1}.event-logo{max-width:160px;max-height:90px;object-fit:contain;margin-bottom:6px}.event-subtitle{letter-spacing:3px;font-size:clamp(12px,2vw,15px);color:#cbd5e1;margin:0}.event-title{font-size:clamp(28px,5vw,48px);margin:0;color:#fff;text-shadow:0 2px 12px rgba(0,0,0,.4)}.event-date{color:#e2e8f0;font-size:clamp(14px,2.4vw,18px);margin:0}.event-cta-hint{color:#cbd5e1;font-size:clamp(14px,2.4vw,17px);margin:6px 0 4px}.event-theme .saved-count{color:#cbd5e1}.sign{gap:12px}.sign-header{text-align:center}.sign-title{font-size:clamp(16px,2.5vw,20px);font-weight:600;color:var(--text)}.sign-dark{background:#0b1120}.sign-dark .sign-title{color:#e2e8f0}.pad-outer{flex:1;display:flex;align-items:center;justify-content:center;gap:14px;min-height:0}.pad-wrap{position:relative;width:100%;aspect-ratio:16 / 9;max-height:100%;max-width:calc((100vh - 220px) * 16 / 9);background:var(--surface);border:2px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:0 4px 16px #0f172a0f}.pad-dark{background:#0b1120;border-color:#1e293b;box-shadow:0 8px 30px #00000080}.color-palette{display:flex;flex-direction:column;gap:10px;padding:6px;align-items:center;justify-content:center;flex-shrink:0}.color-swatch{width:34px;height:34px;border-radius:50%;border:2px solid rgba(255,255,255,.35);padding:0;cursor:pointer;transition:transform .08s ease,box-shadow .12s ease}.color-swatch:active{transform:scale(.9)}.color-swatch.is-active{border-color:#fff;box-shadow:0 0 0 3px #ffffff8c,0 0 12px #fff6;transform:scale(1.15)}.width-picker{display:flex;justify-content:center;gap:10px}.width-btn{display:flex;align-items:center;gap:8px;font:inherit;font-weight:600;color:#cbd5e1;background:#1e293b;border:2px solid #334155;border-radius:999px;padding:8px 16px;min-height:44px;cursor:pointer;transition:border-color .12s ease,background .12s ease,transform .08s ease}.width-btn:active{transform:scale(.96)}.width-btn.is-active{color:#fff;border-color:#fff;background:#334155}.width-dot{display:inline-block;border-radius:50%;flex-shrink:0}.preview-dark{background:#0b1120;border-color:#1e293b}.download-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}.signature-canvas{width:100%;height:100%;display:block;touch-action:none;cursor:crosshair}.pad-baseline{position:absolute;left:8%;right:8%;bottom:22%;border-bottom:2px dashed #e2e8f0;pointer-events:none}.pad-hint{position:absolute;left:50%;bottom:22%;transform:translate(-50%,50%);color:#cbd5e1;font-size:clamp(20px,4vw,30px);pointer-events:none}.sign-actions{display:flex;gap:12px;justify-content:flex-end;align-items:center}.saved{align-items:center;justify-content:center;text-align:center}.saved-inner{display:flex;flex-direction:column;align-items:center;gap:14px;width:100%;max-width:560px}.check-icon{width:72px;height:72px;border-radius:50%;background:var(--success);color:#fff;font-size:40px;display:flex;align-items:center;justify-content:center}.saved h1{font-size:clamp(22px,4vw,30px);margin:0}.preview{width:100%;background:#fff;border:1px solid var(--border);border-radius:12px;padding:10px}.preview img{width:100%;height:auto;max-height:40vh;object-fit:contain}.saved-time{color:var(--muted);font-size:14px;margin:0}.btn{font:inherit;font-weight:600;border:none;border-radius:12px;padding:14px 22px;min-height:52px;min-width:96px;cursor:pointer;transition:transform .05s ease,background .15s ease,opacity .15s ease}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:not(:disabled):hover{background:var(--primary-dark)}.btn-ghost{background:#e2e8f0;color:var(--text)}.btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.6);padding:12px 22px}.btn-lg{padding:18px 40px;font-size:18px;min-height:60px}@media (orientation: landscape) and (max-height: 600px){.pen-icon{font-size:44px}.btn{min-height:46px}.color-swatch{width:28px;height:28px}}@media (orientation: portrait){.pad-outer{flex-direction:column}.color-palette{flex-direction:row;flex-wrap:wrap;gap:12px}}.gallery{gap:12px;overflow-y:auto;-webkit-overflow-scrolling:touch}.gallery-header{display:flex;align-items:center;justify-content:space-between;gap:10px}.gallery-header h1{font-size:clamp(18px,3vw,24px);margin:0;flex:1;text-align:center}.gallery-note{text-align:center;color:var(--muted);font-size:13px;margin:0}.gallery-empty{flex:1;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:16px}.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;padding-bottom:8px}.gallery-item{border:1px solid var(--border);border-radius:12px;overflow:hidden;box-shadow:0 2px 10px #0f172a14}.gallery-item img{width:100%;aspect-ratio:16 / 9;object-fit:contain;display:block}.gallery-item figcaption{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 12px;background:#fff}.gallery-time{font-size:12px;color:var(--muted)}.gallery-actions{display:flex;gap:12px}.link-btn{background:none;border:none;color:var(--primary);font:inherit;font-weight:600;cursor:pointer;padding:4px 2px}.link-btn.danger{color:#dc2626}