body{color:var(--text-main)}.sd-container{box-sizing:border-box;width:100%;max-width:960px;margin:0 auto;padding:24px 16px 60px}.sd-page-title{text-align:center;background:linear-gradient(90deg, var(--accent), var(--accent-2));color:#0000;-webkit-background-clip:text;background-clip:text;margin:0 0 6px;font-size:clamp(1.6rem,3vw,2.2rem);font-weight:600}.sd-subtitle{text-align:center;color:var(--text-main);opacity:.72;margin:0 0 20px;font-size:.95rem}.sd-steps{flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:20px;display:flex}.sd-step{color:var(--text-main);opacity:.55;border-radius:var(--radius-sm);background:var(--surface-soft);border:1px solid var(--line);align-items:center;gap:6px;padding:5px 12px;font-size:.82rem;transition:all .2s;display:inline-flex}.sd-step.is-active{opacity:1;background:var(--accent-soft);border-color:var(--accent)}.sd-step-num{background:var(--accent);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:18px;height:18px;font-size:.7rem;font-weight:600;display:inline-flex}.sd-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:none;box-sizing:border-box;margin-bottom:20px;padding:20px}.sd-hidden{display:none!important}.sd-upload-area{border:2px dashed var(--line-strong);border-radius:var(--radius-lg);text-align:center;cursor:pointer;color:var(--text-main);padding:3rem 1.5rem;transition:border-color .25s,background .25s,transform .25s}.sd-upload-area:hover,.sd-upload-area.sd-active{border-color:var(--accent);background:var(--accent-soft)}.sd-upload-icon{margin-bottom:10px;font-size:2.4rem}.sd-upload-text{font-size:1.05rem;font-weight:500}.sd-upload-hint{opacity:.62;margin-top:6px;font-size:.82rem}.sd-file-input{display:none}.sd-upload-error{color:#ff3b3b;min-height:1em;margin-top:10px;font-size:.85rem}.sd-toolbar,.sd-result-toolbar{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:14px;display:flex}.sd-btn{border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--surface-soft);color:var(--text-main);cursor:pointer;-webkit-user-select:none;user-select:none;justify-content:center;align-items:center;gap:6px;min-height:40px;padding:10px 18px;font-size:.9rem;transition:transform .18s,box-shadow .18s,background .18s,border-color .18s;display:inline-flex}.sd-btn:hover:not(:disabled){box-shadow:var(--shadow-soft);transform:translateY(-2px)}.sd-btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.sd-btn.sd-primary{background:linear-gradient(135deg, var(--accent), var(--accent-2));color:#fff;border-color:#0000;font-weight:500}.sd-btn.sd-danger{color:#ff5a5a;border-color:#ff5a5a}.sd-btn.sd-accent{background:var(--accent-soft);border-color:var(--accent)}.sd-btn.is-active{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:500}.sd-hint{opacity:.65;font-size:.8rem;line-height:1.5}.sd-nudge{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:12px;display:flex}.sd-nudge-label{color:var(--text-main);font-size:.86rem;font-weight:500}.sd-nudge-step{background:var(--surface-soft);color:var(--text-main);border:1px solid var(--line);border-radius:var(--radius-lg);accent-color:var(--accent);padding:6px 8px;font-size:.86rem}.sd-nudge-btn{border-radius:50%;flex:none;width:44px;height:44px;min-height:44px;padding:0;font-size:1.05rem}.sd-align-note{color:var(--accent);flex-basis:100%;font-size:.82rem;font-weight:500}.sd-minarea{color:var(--text-main);white-space:nowrap;align-items:center;gap:6px;font-size:.82rem;display:inline-flex}.sd-minarea input[type=range]{width:110px;accent-color:var(--accent)}.sd-minarea output{text-align:right;font-variant-numeric:tabular-nums;opacity:.85;min-width:2.4em}.sd-spacer{flex:1}.sd-stage-wrap{border-radius:var(--radius-md);background:repeating-conic-gradient(var(--surface-soft) 0% 25%, var(--surface-card) 0% 50%) 50% / 22px 22px;border:1px solid var(--line-soft);position:relative;overflow:hidden}.sd-stage{touch-action:none;-webkit-user-select:none;user-select:none;cursor:grab;display:block}.sd-stage.sd-dragging{cursor:grabbing}.sd-stage-note{background:var(--surface-strong);border:1px solid var(--line);border-radius:var(--radius-lg);color:var(--text-main);pointer-events:none;padding:4px 10px;font-size:.75rem;position:absolute;bottom:10px;left:10px}.sd-result-wrap{border-radius:var(--radius-md);border:1px solid var(--line-soft);background:#0b0b0f;position:relative;overflow:hidden}.sd-result-canvas{touch-action:pan-y;-webkit-user-select:none;user-select:none;width:100%;display:block}.sd-stats{color:var(--accent);margin-top:12px;font-size:.9rem;font-weight:500}.sd-tip{opacity:.62;margin:8px 0 0;font-size:.82rem;line-height:1.6}.sd-footer{text-align:center;opacity:.65;flex-wrap:wrap;justify-content:center;gap:18px;margin-top:26px;font-size:.8rem;display:flex}.sd-footer a{color:var(--accent);text-decoration:none}@media (width<=768px){.sd-container{padding:16px 12px 40px}.sd-panel{border-radius:var(--radius-md);padding:14px}.sd-btn{flex:auto;min-width:0;padding:12px 10px;font-size:.88rem}.sd-nudge-btn{flex:none;width:48px;height:48px}.sd-hint{flex-basis:100%}}