/* CSS cubic-bezier generator (#75) */
.container--bezier-tool{width:min(100% - 1.5rem,82rem);max-width:100%}
.bezier-tool-intro{max-width:64rem}.bezier-app{margin:1rem 0 2rem}
.bezier-preset-panel{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin:1.5rem 0 1rem;padding:1rem 1.2rem}.bezier-preset-panel h2{margin:0}.bezier-preset-panel p{margin:.2rem 0 0;color:var(--color-muted);font-size:.86rem}
.bezier-preset-list{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:.45rem}.bezier-preset-list button{min-height:42px;padding:.5rem .75rem;border:1px solid var(--color-border);border-radius:999px;background:var(--color-surface);color:var(--color-primary);font:inherit;font-weight:800;cursor:pointer}.bezier-preset-list button[aria-pressed="true"]{border-color:var(--color-primary);background:var(--color-primary);color:#fff}
.bezier-preset-list button:focus-visible,.bezier-control-panel button:focus-visible{outline:3px solid rgba(20,107,99,.34);outline-offset:2px}
.bezier-workspace{display:grid;grid-template-columns:minmax(20rem,.85fr) minmax(0,1.15fr);gap:1rem;align-items:start}.bezier-lower-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin-top:1rem}
.bezier-control-panel,.bezier-graph-panel,.bezier-preview-panel,.bezier-result-panel{box-sizing:border-box;min-width:0;margin:0;padding:clamp(1rem,2.4vw,1.4rem)}
.bezier-panel-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;margin-bottom:1rem}.bezier-panel-heading h2{margin:0}.bezier-panel-heading p{margin:.2rem 0 0;color:var(--color-muted);font-size:.86rem}
.bezier-control-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem}.bezier-point-card{min-width:0;padding:.85rem;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-soft)}.bezier-point-card h3{margin:0 0 .7rem;color:var(--color-primary)}
.bezier-point-card>label{display:grid;min-width:0;gap:.3rem;margin-top:.65rem;font-weight:800}.bezier-point-card input[type="number"]{box-sizing:border-box;width:100%;max-width:100%;min-width:0;min-height:44px;padding:.55rem .65rem;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);font:inherit}.bezier-point-card input[type="range"]{box-sizing:border-box;width:100%;max-width:100%;min-width:0;margin:0;accent-color:var(--color-primary)}
.bezier-point-card input:focus,.bezier-preview-actions select:focus{border-color:var(--color-primary);outline:3px solid rgba(20,107,99,.18)}.bezier-point-card input[aria-invalid="true"]{border-color:var(--color-danger);background:#fff7f6}.bezier-field-error{display:block;min-height:1.3em;margin:.2rem 0 0;color:var(--color-danger);font-size:.78rem;font-weight:750}.bezier-range-label span{font-size:.78rem;color:var(--color-muted)}
.bezier-validation{min-height:1.5em;margin:.65rem 0 0;color:var(--color-danger);font-weight:800}
.bezier-graph-wrap{box-sizing:border-box;width:100%;max-width:100%;min-width:0;overflow:hidden;border:1px solid var(--color-border);border-radius:var(--radius-md);background:linear-gradient(180deg,#fbfefd,#f3f8f7)}.bezier-graph{display:block;width:100%;max-width:100%;height:auto;aspect-ratio:10/7}.bezier-graph-bg{fill:#fff;stroke:#dce8e5}.bezier-axis{stroke:#617772;stroke-width:2}.bezier-guide{stroke:#c8d8d4;stroke-width:1;stroke-dasharray:6 6}.bezier-axis-label,.bezier-point-label{fill:#435c57;font-size:14px;font-weight:800}.bezier-control-line{stroke:#97aaa6;stroke-width:2;stroke-dasharray:6 5}.bezier-curve{fill:none;stroke:var(--color-primary);stroke-width:5;stroke-linecap:round}.bezier-endpoint{fill:#435c57}.bezier-control-point{stroke:#fff;stroke-width:3}.bezier-control-point--p1{fill:#d65a31}.bezier-control-point--p2{fill:#466bd7}.bezier-graph-warning{min-height:1.5em;margin:.65rem 0 0;color:#8a5312;font-weight:750}
.bezier-preview-stage{box-sizing:border-box;width:100%;max-width:100%;min-height:132px;padding:24px 12px;overflow:hidden;border:1px solid var(--color-border);border-radius:var(--radius-md);background:repeating-linear-gradient(90deg,#eef6f4 0,#eef6f4 1px,transparent 1px,transparent 10%)}.bezier-preview-object{display:grid;width:64px;height:64px;place-items:center;border-radius:14px;background:linear-gradient(145deg,var(--color-primary),#24a395);color:#fff;font-size:.8rem;font-weight:900;box-shadow:0 10px 22px rgba(20,107,99,.24);will-change:transform}.bezier-preview-actions{display:flex;align-items:end;gap:.7rem;margin-top:.8rem}.bezier-preview-actions label{display:grid;flex:1;gap:.3rem;font-weight:800}.bezier-preview-actions select{box-sizing:border-box;width:100%;min-height:44px;padding:.55rem .65rem;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);font:inherit}.bezier-preview-actions .button{min-width:7rem}
.bezier-main-output{display:block;box-sizing:border-box;width:100%;max-width:100%;min-height:4rem;padding:.85rem;border:1px solid rgba(20,107,99,.28);border-radius:var(--radius-md);background:rgba(20,107,99,.07);color:var(--color-primary);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:clamp(1rem,2.7vw,1.3rem);font-weight:900;line-height:1.5;overflow-wrap:anywhere;word-break:break-word}.bezier-result-panel pre{box-sizing:border-box;width:100%;max-width:100%;margin:.8rem 0 0;padding:.75rem;overflow:auto;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:#f5f8f7;white-space:pre-wrap;overflow-wrap:anywhere}.bezier-result-panel code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.bezier-copy-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.6rem;margin-top:.8rem}.bezier-copy-actions .button{width:100%;min-width:0}.bezier-copy-actions .button:disabled,.bezier-preview-actions .button:disabled{cursor:not-allowed;opacity:.5}.bezier-overshoot{margin:.8rem 0 0;padding:.7rem;border-left:4px solid #d28a27;background:#fff9ec;color:#6d4816}.bezier-status{min-height:1.5em;margin:.7rem 0 0;color:var(--color-primary);font-weight:750}.bezier-status[data-state="error"]{color:var(--color-danger)}.bezier-faq{margin-top:1rem}
@media(max-width:920px){.bezier-workspace,.bezier-lower-grid{grid-template-columns:1fr}}
@media(max-width:680px){.bezier-preset-panel,.bezier-panel-heading{align-items:stretch;flex-direction:column}.bezier-preset-list{justify-content:flex-start}.bezier-control-grid{grid-template-columns:1fr}}
@media(max-width:420px){.container--bezier-tool{width:min(100% - 1rem,82rem);max-width:100%;padding-inline:0}.bezier-workspace,.bezier-lower-grid,.bezier-control-panel,.bezier-graph-panel,.bezier-preview-panel,.bezier-result-panel,.bezier-point-card,.bezier-graph-wrap,.bezier-main-output,.bezier-result-panel pre{width:100%;max-width:100%;min-width:0}.bezier-control-panel,.bezier-graph-panel,.bezier-preview-panel,.bezier-result-panel{padding:.85rem}.bezier-preset-panel{padding:.85rem}.bezier-preset-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.bezier-preset-list button{width:100%;min-width:0}.bezier-preview-actions,.bezier-copy-actions{display:grid;grid-template-columns:1fr}.bezier-preview-actions .button{width:100%}}
@media(prefers-reduced-motion:reduce){.bezier-preview-object{transition-duration:.2s!important}}