/* Design tokens (colors). Change a value here and the whole page follows.
   --bg page background, --panel cards/panels, --line borders, --fg main text, --dim muted text, --acc amber accent, --acc2 green accent. */
:root{--bg:#0b0f14;--panel:#121923;--line:#1f2a38;--fg:#e6edf3;--dim:#8b9bb0;--acc:#ffb000;--acc2:#38d6a8}
/* Global reset and base page styling (dark theme, monospace font stack). */
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--fg);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
a{color:var(--acc2)}
/* Fixed top bar: site label on the left, section links (nav) on the right. Nav is hidden on small screens (see media query below). */
header{position:fixed;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:center;padding:14px 22px;z-index:5;background:linear-gradient(var(--bg),transparent);font-size:13px}
header b{color:var(--acc)}
nav a{margin-left:16px;color:var(--dim);text-decoration:none}
nav a:hover{color:var(--fg)}
/* Hero stage: a full-viewport area holding the canvas (grid/robot), the hero text, the control buttons and the project panel. */
#stage{position:relative;height:100vh;min-height:560px}
canvas{position:absolute;inset:0;width:100%;height:100%;display:block;cursor:crosshair}
/* Hero text overlay. pointer-events:none lets mouse/touch pass through to the canvas underneath. */
.hero{position:absolute;left:5vw;bottom:9vh;pointer-events:none;max-width:min(560px,90vw);text-shadow:0 0 12px var(--bg),0 0 24px var(--bg)}
.hero h1{font-size:clamp(30px,6vw,60px);margin:0 0 8px;letter-spacing:-1px}
.hero p{color:var(--dim);margin:0 0 6px;line-height:1.5}
.hero .hint{color:var(--acc);font-size:12px}
/* Project detail panel. Hidden by default; the class 'on' (added in arrive()) shows it when the robot reaches a project node. */
#panel{position:absolute;right:4vw;top:84px;width:min(380px,90vw);background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px;display:none;z-index:4}
#panel.on{display:block}
#panel h3{margin:0 0 4px;color:var(--acc)}
#panel .when{color:var(--dim);font-size:12px;margin-bottom:10px}
#panel li{margin:6px 0;line-height:1.45;font-size:14px}
#panel ul{padding-left:18px;margin:0}
#panel .tags{margin-top:12px;display:flex;flex-wrap:wrap;gap:6px}
#panel .tags span{border:1px solid var(--line);color:var(--dim);padding:2px 8px;border-radius:99px;font-size:11px}
#panel button{position:absolute;top:10px;right:12px;background:none;border:0;color:var(--dim);font-size:18px;cursor:pointer}
/* Control buttons over the canvas (reset map, random walls, algorithm toggle). */
.tools{position:absolute;left:5vw;top:70px;display:flex;gap:8px;z-index:4;flex-wrap:wrap}
.tools button{background:var(--panel);color:var(--fg);border:1px solid var(--line);border-radius:6px;padding:6px 10px;font:inherit;font-size:12px;cursor:pointer}
.tools button:hover{border-color:var(--acc)}
/* Content sections below the hero: about, skills cards, contact links, footer. */
section{max-width:900px;margin:0 auto;padding:80px 22px}
section h2{color:var(--acc);font-size:14px;letter-spacing:2px;text-transform:uppercase;margin:0 0 24px}
.about p{font-size:17px;line-height:1.7;color:#c9d4e2}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px}
.card h4{margin:0 0 8px;color:var(--acc2);font-size:13px}
.card p{margin:0;color:var(--dim);font-size:13px;line-height:1.6}
.links a{display:inline-block;margin:0 18px 10px 0;font-size:16px}
footer{color:var(--dim);font-size:12px;text-align:center;padding:30px}
/* Small-screen tweaks: hide nav and move the control buttons up. */
@media(max-width:640px){nav{display:none}.tools{top:56px}}

/* Resume section: PDF button, search box, and search result cards. #rr holds results, #rc the match count. */
.rs{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.btn{background:var(--acc);color:#0b0f14;text-decoration:none;padding:9px 16px;border-radius:6px;font-weight:700;font-size:14px}
.btn:hover{filter:brightness(1.1)}
#q{flex:1;min-width:200px;background:var(--panel);color:var(--fg);border:1px solid var(--line);border-radius:6px;padding:9px 12px;font:inherit;font-size:14px}
#q:focus{outline:none;border-color:var(--acc)}
#rr .hit{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:10px 12px;margin-bottom:8px;font-size:14px;line-height:1.5;color:#c9d4e2}
#rr .hit small{display:block;color:var(--dim);font-size:11px;text-transform:uppercase;letter-spacing:1px}
#rr mark{background:var(--acc);color:#0b0f14;border-radius:2px;padding:0 2px}
#rc{color:var(--dim);font-size:12px;margin-bottom:10px}

/* Shared additions: visible keyboard focus, accessible project directory, and dedicated pages. */
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--acc);outline-offset:4px}
#panel .page-link{display:inline-block;margin-top:16px}
#panel{max-height:calc(100vh - 110px);overflow:auto}
#c{touch-action:pan-y}
.project-card{display:block;text-decoration:none;padding:22px;transition:border-color .15s}
.project-card:hover{border-color:var(--acc)}
.project-card h3{color:var(--acc);font-size:17px;margin:0 0 12px}
.project-card .when{font-size:12px;color:var(--dim);line-height:1.6}
.project-card .open{display:block;margin-top:20px;color:var(--acc2);font-size:13px}
.project-main{max-width:1000px;margin:auto;padding:110px 24px 48px}
.project-main .back{display:inline-block;margin-bottom:32px;font-size:13px}
.project-main .eyebrow{color:var(--acc);font-size:12px;letter-spacing:2px}
.project-main h1{font-size:clamp(30px,5vw,54px);line-height:1.1;letter-spacing:-1px;margin:14px 0 18px;overflow-wrap:anywhere}
.project-main .when{color:var(--dim);line-height:1.6}
.project-main .tags{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0 40px}
.project-main .tags span{border:1px solid var(--line);border-radius:99px;padding:6px 12px;font-size:12px;color:var(--acc2)}
.project-main section{padding:28px 0 38px}
.project-main li,.project-main p{line-height:1.8;color:#c9d4e2}
.project-main li{margin-bottom:18px}
.project-main h2{margin-bottom:20px}
.project-main .page-nav{display:flex;flex-wrap:wrap;gap:16px;border-top:1px solid var(--line);padding-top:28px;margin-top:28px}
@media(max-width:640px){header{padding:14px 16px}.hero{bottom:40px}.hero h1{font-size:36px}.project-main{padding:90px 20px 40px}.project-main .tags{margin-bottom:24px}#panel{right:5vw;top:100px}.cols{grid-template-columns:1fr}}

/* Project-only educational demos: touch-friendly controls, responsive vector scenes. */
.demo{border-top:1px solid var(--line);margin-top:32px}
.demo .demo-note{color:var(--dim);font-size:13px;line-height:1.7}
.demo-controls{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:24px 0}
.demo-controls label{display:flex;flex-direction:column;gap:10px;font-size:13px;color:var(--dim)}
.demo-controls input{max-width:100%;accent-color:var(--acc);height:28px}
.demo-controls button{background:var(--panel);color:var(--fg);border:1px solid var(--line);padding:12px 16px;border-radius:6px;font:inherit;font-size:13px;cursor:pointer;min-height:44px}
.demo-controls button:hover{border-color:var(--acc)}
.demo svg{width:100%;height:auto;background:var(--panel);border:1px solid var(--line);border-radius:10px;display:block}
.demo-status{min-height:50px;color:var(--acc2)!important;font-size:13px}
.gauge{height:16px;border:1px solid var(--line);border-radius:8px;overflow:hidden;margin-top:18px}
.gauge div{height:100%;background:var(--acc);transition:width .2s}
.story-card{padding:24px;border:1px solid var(--line);border-radius:10px;background:var(--panel)}
.story-card h3{color:var(--acc2);font-size:22px}
.placeholder{border:1px dashed var(--dim);color:var(--dim);padding:38px 16px;text-align:center;font-size:13px}
.sequence{overflow-wrap:anywhere;font-size:13px}