/* Brand tokens follow P/CLAUDE.md: Interventures green #234d20 and its lighter
   and darker shades only. Text tokens keep at least 4.5:1 contrast on every
   light background used here (checked in tests/brand.test.mjs). */
:root{--brand:#234d20;--brand-dark:#163214;--brand-light:#eef3ec;--brand-border:#d8e3d5;--bg:#f5f7f4;--panel:#fff;--soft:#f1f5ef;--ink:#1c2a1a;--muted:#4b5e47;--subtle:#5a6e55;--link:#2f6a2a;--line:#d8e3d5;--on-brand:#fff;--on-brand-muted:#d8e3d5;font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic",sans-serif;color:var(--ink);background:var(--bg);font-size:15px;font-synthesis:none;color-scheme:light}
*{box-sizing:border-box}
body{margin:0;background:var(--bg)}
button,input,select{font:inherit}
button,a,input,select{-webkit-tap-highlight-color:transparent}
button{cursor:pointer;border:0}
button:disabled{cursor:not-allowed;opacity:.5}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,canvas:focus-visible{outline:3px solid var(--link);outline-offset:3px}
a{color:var(--link)}
input[type=checkbox]{accent-color:var(--brand);width:20px;height:20px;margin:0;flex-shrink:0}
[aria-invalid=true]{outline:2px solid var(--brand-dark);outline-offset:1px;background:var(--brand-light)}

/* Header and footer keep the brand background on every page and theme. */
.topbar{min-height:72px;padding:0 40px;display:flex;align-items:center;justify-content:space-between;background:var(--brand);color:var(--on-brand)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--on-brand);min-height:44px}
.brandmark{width:36px;height:36px;background:var(--brand-light);border-radius:8px;color:var(--brand);font-size:26px;font-weight:700;padding:2px 7px;position:relative;line-height:32px}
.brandmark span{position:absolute;font-size:15px;right:2px;top:-6px;color:var(--brand)}
.brand strong{font-size:21px;letter-spacing:-.7px}
.brand strong>span{font-size:13px;letter-spacing:1.5px;font-weight:600;margin-left:8px;color:var(--on-brand-muted)}
.beta{font-size:12px;letter-spacing:1px;padding:3px 6px;border:1px solid var(--on-brand-muted);border-radius:4px;color:var(--on-brand)}
.text-button{background:transparent;color:var(--on-brand);min-height:44px;font-size:14px;padding:0 4px}
.text-button span{margin-left:10px;font-size:17px}
.text-button:focus-visible{outline-color:var(--on-brand)}
.site-footer{background:var(--brand);color:var(--on-brand);margin-top:40px}
.footer-inner{max-width:1600px;margin:auto;padding:24px 40px;display:flex;justify-content:space-between;gap:20px;font-size:13px;line-height:1.7}
.footer-inner>span:last-child{color:var(--on-brand-muted)}
.footer-divider{margin:0 10px;color:var(--on-brand-muted)}
/* View/run counter: reserve one line so the footer does not jump when the numbers arrive */
.visits{margin:0;min-height:1.7em;font-size:13px;color:var(--on-brand-muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.visits b{font-weight:650;color:var(--on-brand)}
#views:not([hidden])+#runs::before{content:" · "}

main{max-width:1600px;margin:auto;padding:30px 40px 0}
.page-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;gap:20px}
.eyebrow{font-size:12px;letter-spacing:1.6px;color:var(--muted);font-weight:650;margin:0 0 8px}
h1{font-size:28px;letter-spacing:-1px;margin:0 0 8px;font-weight:700}
.page-title p:last-child{font-size:15px;color:var(--muted);margin:0}
.view-tag{border:1px solid var(--line);border-radius:6px;padding:9px 12px;font-size:12px;letter-spacing:1px;color:var(--brand);display:flex;align-items:center;gap:8px}
.live-dot{width:7px;height:7px;background:var(--link);border-radius:50%;display:inline-block;flex-shrink:0}
.notice{background:var(--brand-light);border:1px solid var(--brand-border);border-left:4px solid var(--brand);border-radius:8px;padding:12px 16px;margin:0 0 20px;font-size:14px;line-height:1.7;color:var(--ink)}
.notice strong{color:var(--brand);margin-right:8px}

.workspace{display:grid;grid-template-columns:340px minmax(0,1fr);gap:22px;align-items:start}
.settings,.simulation{border:1px solid var(--line);border-radius:12px;background:var(--panel);overflow:hidden}
.settings{max-height:calc(100vh - 40px);overflow-y:auto;position:sticky;top:20px;scrollbar-width:thin;scrollbar-color:var(--line) transparent}
.setting-section{padding:22px;border-bottom:1px solid var(--line)}
.last-section{border:0}
.section-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;gap:10px}
h2{font-size:16px;letter-spacing:-.3px;margin:0;font-weight:700}
.section-heading h2{display:flex;gap:8px;align-items:center}
.step-number{font-size:13px;color:var(--subtle);font-weight:600}
.section-note{font-size:12px;color:var(--subtle)}
.unit-tag{font-size:12px;color:var(--muted);border-radius:4px;padding:3px 6px;background:var(--soft)}
label:not(.check-row):not(.check-inline):not(.speed-select),.field-label{font-size:13px;color:var(--muted);display:block;margin:14px 0 6px;font-weight:550}
select{appearance:none;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23234d20' stroke-width='1.6'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") right 12px center/16px no-repeat;width:100%;min-height:44px;border:1px solid var(--line);border-radius:6px;padding:0 34px 0 12px;color:var(--ink);font-size:14px}
select:disabled{background-color:var(--soft);color:var(--muted)}
.vehicle-specs{display:grid;grid-template-columns:1fr 1fr 1fr;margin-top:16px;padding:12px 0 0;border-top:1px dashed var(--line)}
.vehicle-specs div+div{padding-left:12px;border-left:1px solid var(--line)}
.vehicle-specs span{font-size:12px;color:var(--muted);display:block;margin-bottom:5px}
.vehicle-specs strong{font-size:15px;font-weight:650;white-space:nowrap}
.vehicle-specs small{font-size:12px;font-weight:400;color:var(--muted)}
.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.number-field{display:flex;align-items:center;border:1px solid var(--line);border-radius:6px;min-height:44px;background:#fff}
.number-field input{width:100%;min-width:0;min-height:42px;border:0;background:transparent;padding:8px 10px;font-size:16px;color:var(--ink);font-variant-numeric:tabular-nums;border-radius:6px}
.number-field span{padding-right:12px;color:var(--muted);font-size:13px}
.number-field:focus-within{outline:3px solid var(--link);outline-offset:2px}
.number-field input:focus-visible{outline:none}
.preset-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.preset{min-height:44px;padding:0 14px;font-size:14px;border:1px solid var(--line);border-radius:6px;color:var(--muted);background:#fff}
.preset.selected{background:var(--brand-light);color:var(--brand);border-color:var(--brand);font-weight:650}
#preset-label{font-size:12px;color:var(--subtle);margin-left:auto}
.field-help{font-size:13px;color:var(--muted);line-height:1.65;margin:8px 0 0}
.mini-diagram{background:var(--soft);border:1px solid var(--line);border-radius:7px;padding:10px 16px;margin-top:14px;text-align:center;font-size:12px;color:var(--muted)}
.mini-diagram>span{display:block;border-top:2px solid var(--brand-border);padding-top:4px}
.mini-diagram>span:last-child{border-top:0;border-bottom:2px solid var(--brand-border);padding-bottom:4px}
.mini-diagram>div{padding:8px 0}
.mini-diagram strong{font-size:14px;letter-spacing:.5px;margin:0 5px;color:var(--brand)}
.legal-note{font-size:12px;color:var(--muted);line-height:1.7;margin:14px 0 0}
.inline-link{background:transparent;font-size:13px;padding:0 2px;min-height:44px;color:var(--link);text-decoration:underline;text-underline-offset:3px}
.wall-card{border:1px solid var(--line);border-radius:6px;margin:8px 0;background:#fbfcfa}
.check-row{min-height:44px;display:flex;align-items:center;gap:10px;padding:10px 12px;font-size:14px;cursor:pointer}
.option-row{border:1px solid var(--line);border-radius:6px;margin-top:14px;background:#fbfcfa}
.wall-symbol{margin-left:auto;color:var(--subtle);font-size:17px}
.wall-options{padding:0 12px 14px;border-top:1px solid var(--line)}
.wall-tip{background:var(--brand-light);color:var(--ink);font-size:13px;line-height:1.7;padding:10px 12px;border-radius:6px;margin:12px 0 0;border-left:3px solid var(--brand)}
.reset-settings{width:100%;font-size:14px;color:var(--muted);background:transparent;min-height:44px;margin-top:12px;border:1px solid var(--line);border-radius:6px}
.stopper-toggle{border:1px solid var(--line);background:#fbfcfa;border-radius:6px}
.stopper-guide{background:var(--soft);border:1px solid var(--line);border-radius:6px;padding:12px;text-align:center;font-size:12px;color:var(--muted);margin:12px 0}
.stopper-guide>span:first-child{display:block;border-top:2px solid var(--brand-border);padding-top:5px}
.stopper-guide>div{padding:9px 0}
.stopper-guide strong{font-size:14px;color:var(--brand)}
.stopper-guide i{display:block;height:10px;width:80%;margin:0 auto 6px;background:repeating-linear-gradient(130deg,var(--brand-dark) 0,var(--brand-dark) 12px,var(--brand-border) 12px,var(--brand-border) 22px);border-radius:2px}
.parking-preview{padding:12px;background:var(--soft);border:1px solid var(--line);border-radius:7px;margin-top:15px}
.parking-preview>div{display:flex;justify-content:space-between;gap:8px;font-size:13px;line-height:2.2;color:var(--muted)}
.parking-preview strong{white-space:nowrap;font-size:14px;color:var(--brand);font-variant-numeric:tabular-nums}
.parking-preview>div:last-of-type{padding-top:5px;margin-top:4px;border-top:1px solid var(--line)}
.parking-preview p{font-size:12px;color:var(--muted);line-height:1.6;margin:7px 0 0}

.canvas-header{padding:18px 24px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.canvas-header .eyebrow{margin-bottom:6px}
.canvas-header h2{font-size:19px}
.canvas-actions{display:flex;align-items:center;gap:14px}
.check-inline{display:flex;gap:8px;align-items:center;font-size:14px;color:var(--muted);min-height:44px;cursor:pointer}
.icon-button{width:44px;height:44px;min-width:44px;border:1px solid var(--line);background:#fff;border-radius:6px;color:var(--brand);font-size:22px}
.canvas-wrap{position:relative;background:#f2f5f1;height:560px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden}
canvas{width:100%;height:100%;display:block}
.canvas-top-label{position:absolute;top:14px;left:18px;display:flex;align-items:center;gap:7px;font-size:13px;color:var(--ink);background:#ffffffe8;border:1px solid var(--line);border-radius:5px;padding:7px 10px;pointer-events:none}
.scale-label{position:absolute;top:20px;right:18px;font-size:12px;color:var(--muted);background:#ffffffd0;padding:2px 6px;border-radius:4px;pointer-events:none}
.canvas-legend{position:absolute;bottom:14px;left:18px;display:flex;gap:16px;font-size:12px;color:var(--ink);background:#ffffffd8;padding:5px 9px;border-radius:5px;pointer-events:none}
.canvas-legend span{display:flex;gap:6px;align-items:center}
.canvas-legend i{width:16px;height:3px;background:#3d7b35}
.canvas-legend .legend-target{height:10px;background:#dde9d9;border:1px solid #4f7d48}
.canvas-legend .legend-reverse{background:repeating-linear-gradient(90deg,var(--brand-dark) 0,var(--brand-dark) 4px,transparent 4px,transparent 7px)}
.position-readout{display:flex;flex-wrap:wrap;gap:8px 22px;padding:12px 24px;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted);background:#fbfcfa}
.position-readout>div{display:flex;flex-direction:column;min-width:120px}
.position-readout strong{color:var(--ink);font-size:16px;font-variant-numeric:tabular-nums}
.position-readout strong.warn{color:var(--brand-dark);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
.position-readout small{font-size:12px;color:var(--muted)}
.guidance{display:flex;gap:13px;padding:16px 24px;align-items:flex-start;border-bottom:1px solid var(--line)}
.guidance-icon{font-size:20px;color:var(--brand);width:36px;height:36px;border-radius:8px;background:var(--brand-light);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-weight:700}
.guidance strong{font-size:15px;font-weight:700;line-height:1.6;display:block}
.guidance p{font-size:14px;color:var(--muted);line-height:1.7;margin:2px 0 0}
.guidance.error{background:var(--brand-light);border-left:5px solid var(--brand-dark)}
.guidance.error .guidance-icon{background:var(--brand-dark);color:var(--on-brand)}
.guidance.error strong{color:var(--brand-dark)}
.guidance.success .guidance-icon{background:var(--brand);color:var(--on-brand)}
.route-controls{display:flex;gap:9px;align-items:center;padding:14px 24px 8px;flex-wrap:wrap}
.primary-button,.secondary-button{min-height:44px;border-radius:6px;padding:0 16px;font-size:14px;white-space:nowrap}
.primary-button{background:var(--brand);color:var(--on-brand);font-weight:600}
.primary-button:hover:not(:disabled){background:var(--brand-dark)}
.primary-button.cancel{background:var(--brand-dark)}
.primary-button>span[aria-hidden]{font-size:17px;margin-right:4px}
.secondary-button{background:#fff;border:1px solid var(--line);color:var(--brand)}
.secondary-button>span[aria-hidden]{font-size:12px;margin-right:4px}
.speed-select{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted)}
.speed-select select{width:auto;min-width:76px}
.route-meta{font-size:13px;line-height:1.5;color:var(--muted);margin-left:auto;text-align:right}
.timeline-row{display:flex;align-items:center;gap:12px;padding:4px 24px 14px;border-bottom:1px solid var(--line)}
.timeline-row label{margin:0!important;white-space:nowrap}
.timeline-row input{flex:1}
.timeline-time{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
input[type=range]{accent-color:var(--brand);height:44px;cursor:pointer;margin:0}
.steps-panel{padding:14px 24px;border-bottom:1px solid var(--line)}
.steps-panel h3{font-size:15px;margin:0}
.steps-panel ol{margin:10px 0 0;padding-left:0;list-style:none;counter-reset:step;display:grid;gap:6px}
.steps-panel li{counter-increment:step;display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.55;padding:9px 12px;border:1px solid var(--line);border-radius:6px;cursor:pointer;min-height:44px}
.steps-panel li::before{content:counter(step);font-weight:700;color:var(--brand);min-width:18px}
.steps-panel li.current{background:var(--brand-light);border-color:var(--brand);font-weight:600}
.manual-panel{padding:18px 24px}
.manual-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:12px}
.manual-title h3{font-size:15px;margin:0}
.manual-title>span{font-size:13px;color:var(--muted);text-align:right}
.manual-title>span.editing{color:var(--brand-dark);font-weight:600}
.drive-controls{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.gear-group{display:flex;background:var(--soft);border-radius:7px;padding:4px;gap:3px}
.gear{width:46px;height:46px;background:transparent;color:var(--muted);border-radius:5px;font-size:16px;font-weight:600}
.gear.active{background:#fff;color:var(--brand);box-shadow:0 1px 4px #16321426;font-weight:700}
.steering{flex:1;min-width:180px;max-width:280px}
.steering>div:first-child{display:flex;justify-content:space-between;align-items:center}
.steering label{margin:0!important}
.steering input{width:100%}
.steer-labels{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}
.pedals{display:flex;gap:8px}
.pedal{min-height:56px;padding:8px 18px;background:var(--brand-light);border:1px solid var(--brand-border);border-radius:7px;color:var(--brand);font-size:15px;font-weight:600;touch-action:none;user-select:none;-webkit-user-select:none}
.pedal small{display:block;font-size:12px;color:var(--muted);margin-top:3px;font-weight:400}
.pedal.pressed{background:var(--brand-border)}
.pedal.brake{background:#fff;border-color:var(--line);color:var(--brand-dark)}
.speed{text-align:right;margin-left:auto;min-width:64px}
.speed strong{font-size:28px;font-weight:500;letter-spacing:-1px;display:block;font-variant-numeric:tabular-nums}
.speed span{color:var(--muted);font-size:12px}
.attempt-controls{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:16px}
.attempt-controls .field-help{margin:0;flex:1;min-width:200px}
.result-panel{margin-top:14px;padding:14px 16px;border:1px solid var(--brand);border-radius:8px;background:var(--brand-light)}
.result-panel h3{margin:0 0 6px;font-size:16px;color:var(--brand)}
.result-panel ul{margin:0;padding-left:18px;font-size:14px;line-height:1.8}
.model-note{font-size:13px;color:var(--muted);line-height:1.7;border-top:1px dashed var(--line);padding-top:14px;margin:16px 0 0}
dialog{border:1px solid var(--line);border-radius:14px;max-width:640px;width:calc(100% - 32px);padding:0;color:var(--ink);box-shadow:0 20px 70px #1632142b}
dialog::backdrop{background:#16321473;backdrop-filter:blur(3px)}
.dialog-header{display:flex;align-items:center;justify-content:space-between;padding:16px 22px;border-bottom:1px solid var(--line)}
.dialog-header h2{font-size:18px}
.dialog-content{padding:6px 22px 26px;max-height:70vh;overflow:auto;font-size:14px;line-height:1.85;color:var(--ink)}
.dialog-content h3{font-size:15px;color:var(--brand);margin:20px 0 4px}
.guide-list{margin:4px 0 0;padding-left:18px}
.guide-list li{margin:4px 0}
.dialog-content a{color:var(--link);font-size:14px;display:inline-flex;align-items:center;min-height:44px}
[hidden]{display:none!important}

@media(min-width:1600px){.canvas-wrap{height:620px}}
@media(max-width:1199px){main{padding:24px 22px 0}.topbar{padding:0 22px}.footer-inner{padding:22px}.workspace{gap:16px}.setting-section{padding:18px}.canvas-wrap{height:520px}.route-meta{margin:0;width:100%;text-align:left}.scale-label{display:none}}
@media(max-width:999px){.workspace{grid-template-columns:1fr}.simulation{grid-row:1}.settings{position:static;max-height:none;display:grid;grid-template-columns:1fr 1fr}.setting-section{border-right:1px solid var(--line)}.view-tag{display:none}.canvas-wrap{height:480px}.footer-inner{flex-direction:column;gap:6px}}
@media(max-width:620px){.topbar{min-height:60px;padding:0 16px}.brand strong{font-size:18px}.brand{gap:8px}.brand strong>span{font-size:12px;margin-left:4px;letter-spacing:1px}.beta{display:none}.text-button{font-size:13px}.text-button span{margin-left:5px}main{padding:18px 16px 0}.page-title{margin-bottom:14px}h1{font-size:23px}.canvas-wrap{height:420px}.canvas-header{padding:14px 16px}.canvas-legend{left:10px;gap:10px}.canvas-top-label{left:10px;top:10px;max-width:calc(100% - 20px)}.guidance{padding:14px 16px}.route-controls{padding:12px 16px 6px}.timeline-row{padding:4px 16px 12px}.steps-panel{padding:12px 16px}.position-readout{padding:12px 16px}.manual-panel{padding:16px}.manual-title{align-items:flex-start;flex-direction:column;gap:4px}.manual-title>span{text-align:left}.steering{flex-basis:100%;max-width:none}.pedals{flex:1}.pedal{flex:1}.settings{grid-template-columns:1fr}.setting-section{border-right:0}.footer-inner{padding:18px 16px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}