:root{--bg:#f7f6f2;--surface:#fff;--text:#1c1b18;--muted:#6e6c65;--accent:#2f5d50;--accent-hover:#264c41;--danger-bg:#fbefed;--danger-text:#8c3a2e;--border:#e5e2da;--radius:10px;--shadow:0 1px 3px #1c1b1812}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Pretendard,Malgun Gothic,Apple SD Gothic Neo,sans-serif;line-height:1.6}h1{letter-spacing:-.02em;font-size:clamp(1.7rem,4vw,2.4rem);font-weight:700}.page{flex-direction:column;min-height:100vh;display:flex}.header{box-sizing:border-box;width:100%;max-width:720px;margin:0 auto;padding:1.5rem 1.25rem}.wordmark{letter-spacing:-.02em;font-size:1.35rem;font-weight:700}.wordmark-dot{color:var(--accent)}.main{width:100%;max-width:720px;margin:0 auto;padding:0 1.25rem 4rem}.hero{margin:1.5rem 0 2rem}.hero h1{margin:0 0 .5rem}.hero p{color:var(--muted);margin:0}.footer{color:var(--muted);text-align:center;margin-top:auto;padding:1.5rem;font-size:.8rem}.btn{border-radius:var(--radius);cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;padding:.65rem 1.4rem;font-size:.95rem;font-weight:600;text-decoration:none;transition:background .15s;display:inline-flex}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-secondary{color:var(--text);border-color:var(--border);background:0 0}.btn-secondary:hover{background:var(--surface)}.result-actions{gap:.75rem;margin-top:1.25rem;display:flex}@media (width<=480px){.result-actions{flex-direction:column}}.upload-zone{border:1.5px dashed var(--border);background:var(--surface);border-radius:var(--radius);text-align:center;cursor:pointer;padding:3.5rem 1.5rem;transition:border-color .15s,background .15s}.upload-zone:hover,.upload-zone--active{border-color:var(--accent)}.upload-zone--active{background:var(--bg)}.upload-zone__icon{color:var(--accent)}.upload-zone__main{margin:.75rem 0 .25rem;font-weight:600}.upload-zone__sub{color:var(--muted);margin:0;font-size:.85rem}.processing{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;padding:3rem 1.5rem}.processing__track{background:var(--border);border-radius:999px;max-width:320px;height:4px;margin:0 auto 1.5rem;overflow:hidden}.processing__bar{background:var(--accent);border-radius:999px;width:40%;height:100%;animation:1.4s infinite slide}@keyframes slide{0%{transform:translate(-100%)}to{transform:translate(350%)}}.processing__message{margin:0 0 .5rem;font-weight:600}.processing__hint{color:var(--muted);margin:0;font-size:.85rem}.error-banner{background:var(--danger-bg);color:var(--danger-text);border-radius:var(--radius);justify-content:space-between;align-items:center;margin-bottom:1rem;padding:.8rem 1rem;font-size:.9rem;display:flex}.error-banner__close{color:inherit;cursor:pointer;background:0 0;border:none;padding:0 0 0 1rem;font-size:1.1rem;line-height:1}.compare{border-radius:var(--radius);box-shadow:var(--shadow);-webkit-user-select:none;user-select:none;touch-action:none;position:relative;overflow:hidden}.compare-img{width:100%;display:block}.compare-clip{position:absolute;inset:0}.compare-handle{pointer-events:none;justify-content:center;align-items:center;display:flex;position:absolute;top:0;bottom:0;transform:translate(-50%)}.compare-handle-line{background:#fff;width:2px;position:absolute;top:0;bottom:0;box-shadow:0 0 4px #1c1b1866}.compare-handle-knob{width:36px;height:36px;color:var(--accent);background:#fff;border-radius:999px;justify-content:center;align-items:center;display:flex;box-shadow:0 1px 4px #1c1b1859}.compare-chip{color:#fff;background:#1c1b18a6;border-radius:999px;padding:2px 8px;font-size:.72rem;position:absolute;top:10px}.compare-chip--left{left:10px}.compare-chip--right{right:10px}.compare-hint{color:var(--muted);text-align:center;margin:.75rem 0 0;font-size:.85rem}