.bezier-page{width:calc(100% - 64px);max-width:1280px;margin-inline:auto;padding-bottom:68px}
.bezier-intro{max-width:1120px;margin-inline:auto}
.tool-breadcrumbs{padding:17px 0 0;font-size:12px;color:var(--muted)}
.tool-breadcrumbs ol{display:flex;flex-wrap:wrap;gap:8px}
.tool-breadcrumbs li+li:before{content:"/";margin-right:8px;color:var(--line-strong)}
.tool-breadcrumbs a:hover{text-decoration:none;color:var(--ink)}
.tool-hero{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(240px,.6fr);align-items:center;gap:5%;padding:36px 0 30px}
.tool-hero h1{font:700 clamp(40px,4vw,58px)/1.1 Arial,sans-serif;letter-spacing:-.055em;margin:12px 0 15px}
.tool-hero h1 span{color:var(--coral)}
.tool-lead{font-size:clamp(17px,2.1vw,24px);font-weight:650;letter-spacing:-.02em}
.tool-description{max-width:560px;margin-top:12px;color:var(--muted);font-size:14px;line-height:1.95}
.tool-hero-aside{min-height:175px;position:relative;padding:25px;background:var(--blue-wash);border:1px solid var(--line-strong);display:grid;place-items:center;box-shadow:var(--shadow-paper);color:var(--ink)}
.tool-hero-aside svg{width:min(100%,310px)}
.tool-note-index,.tool-note-caption{position:absolute;font:10px/1.5 var(--font-mono);letter-spacing:.1em;color:var(--muted)}
.tool-note-index{top:12px;left:15px}.tool-note-caption{right:15px;bottom:12px}
.tool-guide{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--ink);padding:13px 0 28px;font-size:13px}
.tool-guide p{color:var(--muted)}.tool-guide p span{color:var(--coral);font:11px var(--font-mono);margin-right:12px}.tool-guide a{font-weight:700;text-decoration:none;white-space:nowrap}.tool-guide a:hover{text-decoration:underline}
.tool-nojs{border:1px solid #b4a273;background:var(--yellow-wash);padding:15px 18px;margin:0 0 20px;font-size:13px}
.bezier-app{border:1px solid var(--ink);background:var(--sheet)}
.bezier-actionbar{display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--ink);padding:16px 22px;background:var(--yellow-wash)}
.bezier-actionbar>div:first-child{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.bezier-actionbar strong{font-size:16px}.tool-bar-index,.tool-save-note{font:11px/1.5 var(--font-mono);color:var(--muted)}.tool-bar-index{color:var(--coral)}
.bezier-actions,.button-row{display:flex;gap:8px;flex-wrap:wrap}
.bezier-app .button{min-height:42px;padding:8px 13px;font-size:12px;gap:8px;border-radius:var(--radius);box-shadow:none;transform:none;white-space:nowrap}
.bezier-app .button:hover{transform:translateY(-1px)}.bezier-app .button:active{transform:none}
.bezier-app .button-primary{background:var(--ink);border:1px solid var(--ink);color:var(--sheet)}
.bezier-app .button-primary:hover{background:var(--ink-hover)}
.bezier-app .button-secondary{background:var(--sheet);border:1px solid var(--line-strong);color:var(--ink)}
.bezier-app .button-secondary:hover{background:var(--blue-wash);border-color:var(--ink)}
.bezier-app .button-ghost{background:transparent;border:1px solid var(--line-strong);color:var(--ink)}
.bezier-app .button-ghost:hover{background:var(--coral-wash);border-color:var(--coral)}
.bezier-app .button.is-active{background:var(--teal);border-color:var(--teal);color:white}
.bezier-app .button:disabled{opacity:.45;cursor:not-allowed;transform:none}
.bezier-main{padding:22px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 325px;align-items:start;gap:18px}
.tool-panel{border:1px solid var(--line);background:var(--sheet);padding:21px;min-width:0}
.section-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:17px}
.section-heading>div{display:flex;align-items:baseline;gap:13px;flex-wrap:wrap}.section-heading h2{font-size:18px;font-weight:650;letter-spacing:-.02em}
.step-number{font:11px/1.5 var(--font-mono);letter-spacing:.05em;color:var(--coral)}
.size-badge,.unit-badge{font:10px/1.5 var(--font-mono);letter-spacing:.03em;color:var(--muted);white-space:nowrap;background:var(--blue-wash);padding:5px 8px}
.canvas-frame{border:1px solid var(--line-strong);background:#fff;overflow:hidden}
#bezier-canvas{display:block;width:100%;height:auto;aspect-ratio:1280/670;background:#fff;touch-action:none;cursor:crosshair}
#bezier-canvas.point-hover{cursor:grab}#bezier-canvas.dragging{cursor:grabbing}#bezier-canvas.scale-hover,#bezier-canvas.scaling{cursor:nwse-resize}#bezier-canvas.adding-point{cursor:copy;outline:3px solid var(--coral);outline-offset:-3px}
.canvas-toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:12px}
.canvas-hint{font-size:12px;color:var(--muted);line-height:1.7}.canvas-toolbar .button{flex:none}
.point-actions{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-bottom:9px}.point-actions .button{white-space:normal;line-height:1.3;padding-inline:8px}
.add-point-hint{font-size:11px;color:var(--muted);line-height:1.6;min-height:35px;margin-bottom:12px}.add-point-hint.is-active{color:var(--coral);font-weight:700}
.point-editor{display:grid;gap:8px;max-height:500px;overflow-y:auto;scrollbar-width:thin}
.empty-points{display:grid;place-items:center;min-height:145px;border:1px dashed var(--line);font-size:12px;color:var(--muted)}
.point-row{border:1px solid var(--line);padding:12px;background:white}
.point-identity{display:flex;align-items:center;gap:8px;margin-bottom:9px;font-size:12px;font-weight:700}
.point-chip{display:grid;place-items:center;min-width:29px;min-height:26px;padding:0 5px;font:11px/1.4 var(--font-mono);color:white}
.point-chip.anchor,.dot-anchor{background:var(--teal)}.point-chip.control,.dot-control{background:var(--coral)}
.coordinate-inputs{display:grid;grid-template-columns:1fr 1fr;gap:8px}.coordinate-inputs label{display:flex;align-items:center;gap:6px;font:11px/1.5 var(--font-mono);color:var(--muted)}
.coordinate-inputs input{width:100%;min-width:0;padding:7px;border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--sheet);color:var(--ink);font:12px/1.5 var(--font-mono)}
.coordinate-inputs input:focus-visible,.bezier-app textarea:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.pixel-value{text-align:right;font:10px/1.5 var(--font-mono);color:var(--muted);margin-top:8px}
.legend{display:flex;gap:18px;margin-top:16px;font-size:11px;color:var(--muted)}.legend span{display:flex;align-items:center;gap:6px}.dot{display:inline-block;width:9px;height:9px;border-radius:50%}
.output-section{margin-top:18px}.output-heading p{font-size:12px;color:var(--muted)}
.output-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.output-stack{display:grid;gap:14px}
.output-card{display:flex;flex-direction:column;min-width:0;padding:15px;border:1px solid var(--line);background:#fff}
.output-title{display:flex;justify-content:space-between;align-items:baseline;gap:10px;margin-bottom:10px}.output-title h3{font-size:15px}.output-title span{font:10px/1.5 var(--font-mono);color:var(--muted)}
.bezier-app textarea{width:100%;min-height:0;margin-bottom:10px;resize:vertical;padding:10px;border:1px solid var(--line);border-radius:var(--radius);background:#f8faf8;color:var(--ink);font:12px/1.6 var(--font-mono)}
.output-card>.button{align-self:flex-start;margin-top:auto}.output-card .button-row{margin-top:auto}.button-row .button{flex:1}
.toast{position:fixed;right:20px;bottom:20px;z-index:20;max-width:min(420px,calc(100% - 40px));padding:12px 17px;background:var(--teal);color:white;border:1px solid var(--ink);font-size:12px;opacity:0;transform:translateY(8px);pointer-events:none;transition:opacity var(--motion-fast),transform var(--motion-fast)}
.toast.visible{opacity:1;transform:none}.toast-error{background:var(--coral)}
.tool-back{border-top:1px solid var(--line);margin-top:27px;padding-top:10px}
@media(max-width:1050px){.workspace{grid-template-columns:minmax(0,1fr)}.point-editor{grid-template-columns:repeat(2,minmax(0,1fr));max-height:350px}.editor-card{grid-row:2}.tool-hero{gap:4%}}
@media(max-width:760px){.bezier-page{width:calc(100% - 32px)}.tool-hero{grid-template-columns:1fr;padding:27px 0 22px;gap:0}.tool-hero h1{font-size:clamp(36px,9vw,55px)}.tool-hero-aside{display:none}.tool-guide{align-items:flex-start;flex-direction:column;gap:7px;padding-bottom:17px}.bezier-actionbar{align-items:stretch;flex-direction:column;padding:14px}.bezier-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.bezier-actions .button{width:100%}.bezier-main{padding:12px}.tool-panel{padding:14px}.point-editor{max-height:none}.output-grid{grid-template-columns:1fr}.output-heading{align-items:flex-start;flex-direction:column}.output-card{padding:13px}}
@media(max-width:540px){.bezier-page{width:calc(100% - 24px)}.tool-hero-aside{min-height:150px}.tool-hero-aside svg{max-width:250px}.tool-lead{font-size:18px}.section-heading{align-items:flex-start;flex-wrap:wrap}.section-heading>div{display:block}.section-heading h2{margin-top:4px}.size-badge,.unit-badge{margin-left:auto}.canvas-toolbar{align-items:flex-start;flex-direction:column}.point-editor{grid-template-columns:1fr}.point-actions{grid-template-columns:1fr 1fr}.output-title{align-items:flex-start;flex-direction:column;gap:2px}.bezier-app textarea{font-size:12px}.toast{right:12px;bottom:12px;max-width:calc(100% - 24px)}}
@media(prefers-reduced-motion:reduce){.bezier-page *, .toast{transition:none!important;scroll-behavior:auto!important}}