/* Shared styles for the individual project pages (flight-controller.html, etc.).
   Content comes from projects-data.js via project-page.js. */
:root{
  --red:#C8102E;--blk:#0A0A0F;--wht:#E9E9E9;--card:#FAFAFA;--ink:#0D0E14;
  --sub:#56544C;--dim:#6B7080;--line:rgba(13,14,20,.08);
  --shadow:0 1px 2px rgba(13,14,20,.04),0 10px 30px rgba(13,14,20,.05);
  --ease:cubic-bezier(0.16,1,0.3,1);
  --maxw:1000px;--px:clamp(20px,5vw,28px);
  --r-card:14px;--r-btn:14px;--r-sm:14px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:'Exo',sans-serif;background:var(--wht);color:var(--ink);cursor:default;-webkit-font-smoothing:antialiased;line-height:1.6;overflow-x:hidden;}
::selection{background:var(--red);color:#fff;}
a{color:inherit;text-decoration:none;cursor:pointer;}
button{cursor:pointer;}
img{display:block;max-width:100%;}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:var(--px);padding-right:var(--px);}

#progress{position:fixed;top:0;left:0;height:2px;width:100%;background:var(--red);z-index:999;transform:scaleX(0);transform-origin:left;will-change:transform;}

/* NAV */
nav{position:fixed;top:0;left:0;right:0;z-index:200;border-bottom:1px solid transparent;transition:background .4s,border-color .4s;}
nav .nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px;}
nav.scrolled{background:rgba(233,233,233,.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line);}
.nav-logo{font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink);}
.nav-logo .slash{color:var(--red);margin:0 2px;}
.nav-back{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);display:inline-flex;align-items:center;gap:8px;transition:color .2s,gap .25s var(--ease);}
.nav-back:hover{color:var(--ink);gap:12px;}
.nav-back svg{width:15px;height:15px;flex-shrink:0;}
.nav-lam{display:inline-flex;width:18px;height:18px;color:var(--ink);opacity:.5;transition:opacity .2s,color .2s;}
.nav-lam:hover{opacity:1;color:var(--red);}
.nav-lam svg{width:100%;height:100%;}
.nav-lam svg path{fill:currentColor;}

main{padding-top:64px;}

/* HEADER */
.phead{padding-top:44px;padding-bottom:26px;}
.badge{display:inline-flex;align-items:center;font-family:'JetBrains Mono',monospace;font-size:10px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;padding:6px 13px;border-radius:var(--r-sm);margin-bottom:20px;}
.badge.live{background:rgba(200,16,46,.08);color:var(--red);}
.badge.live::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--red);margin-right:8px;animation:blink 2.2s ease-in-out infinite;}
.badge.done{background:rgba(13,14,20,.06);color:var(--sub);}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.15}}
@keyframes imgIn{from{opacity:0}to{opacity:1}}
.ptitle{font-family:'Exo',sans-serif;font-weight:700;font-size:clamp(34px,6vw,66px);line-height:.96;letter-spacing:-.04em;color:var(--ink);}
.pcat{font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.08em;color:var(--dim);margin-top:16px;}
.follow{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:22px;font-size:15px;color:var(--sub);}
.follow .soc{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:50%;color:var(--sub);transition:border-color .2s,color .2s,transform .3s var(--ease);}
.follow .soc:hover{color:var(--ink);border-color:var(--ink);transform:translateY(-2px);}
.follow .soc svg{width:15px;height:15px;fill:currentColor;}

/* HERO: media + phases */
.phero{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;padding-top:14px;padding-bottom:8px;align-items:start;}
.media{position:relative;border:1px solid var(--line);background:#E6E6E6;aspect-ratio:1/1;overflow:hidden;border-radius:var(--r-card);box-shadow:var(--shadow);}
.media img,.media video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;animation:imgIn .8s var(--ease) both;}
.media model-viewer{width:100%;height:100%;background:transparent;}
.media .coord{position:absolute;top:12px;left:14px;font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.1em;color:rgba(13,14,20,.4);z-index:2;}
.media .hint{position:absolute;bottom:12px;left:14px;font-family:'JetBrains Mono',monospace;font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:rgba(13,14,20,.32);z-index:2;}
.media .ph-fill{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:rgba(13,14,20,.22);background:
  linear-gradient(90deg,transparent 49.7%,rgba(200,16,46,.05) 50%,transparent 50.3%),
  linear-gradient(transparent 49.7%,rgba(200,16,46,.05) 50%,transparent 50.3%),#E6E6E6;}

.pdesc{font-size:clamp(15px,1.7vw,18px);line-height:1.7;color:var(--sub);}
.pdesc b{color:var(--ink);font-weight:600;}
.phases-lbl{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);margin:28px 0 12px;}
.phase-list{border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);box-shadow:var(--shadow);overflow:hidden;}
.phase{display:grid;grid-template-columns:18px 1fr;gap:14px;padding:15px 18px;border-top:1px solid var(--line);}
.phase:first-child{border-top:none;}
.phase .chk{margin-top:3px;}
.phase .ptxt{font-size:14px;line-height:1.6;color:var(--sub);}
.phase .ptxt b{color:var(--ink);font-weight:600;}
.phase.todo .ptxt{color:var(--dim);}
.phase.todo .ptxt b{color:var(--sub);}
.phase.now .ptxt b{color:var(--ink);}

/* Shared [ ] / [-] / [x] checkbox mark — see js/phase-checklist.js */
.chk{position:relative;display:inline-block;width:14px;height:14px;flex-shrink:0;border-radius:4px;border:1.5px solid var(--line);background:transparent;transition:background .25s var(--ease),border-color .25s var(--ease);}
.chk.now{border-color:var(--red);}
.chk.now::after{content:'';position:absolute;left:2.5px;top:5px;width:7px;height:2px;border-radius:1px;background:var(--red);}
.chk.done{border-color:var(--red);background:var(--red);}
.chk.done::after{content:'';position:absolute;left:3px;top:1.5px;width:4px;height:7.5px;border:solid #fff;border-width:0 1.6px 1.6px 0;transform:rotate(40deg);}

/* BUILD LOG */
.log-sec{padding-top:8px;padding-bottom:8px;}
.log-top{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:30px;margin-top:36px;}
.log-top .label{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);}
.log-tools{display:flex;gap:20px;}
.log-tools button{background:none;border:none;cursor:pointer;font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.08em;color:var(--sub);border-bottom:1px solid var(--line);padding-bottom:2px;transition:color .2s,border-color .2s;}
.log-tools button:hover{color:var(--ink);border-color:var(--ink);}

.entry{margin-top:18px;padding:22px 24px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);box-shadow:var(--shadow);scroll-margin-top:90px;}
.entry-head{display:flex;align-items:flex-start;gap:12px;cursor:pointer;}
.entry-star{color:var(--red);flex-shrink:0;font-size:15px;line-height:1.4;width:16px;}
.entry-main{flex:1;min-width:0;}
.entry-title{font-family:'Exo',sans-serif;font-size:clamp(17px,2vw,21px);font-weight:700;letter-spacing:-.01em;color:var(--ink);display:inline-flex;align-items:center;gap:8px;}
.entry-anchor{opacity:0;color:var(--dim);transition:opacity .2s,color .2s;}
.entry-head:hover .entry-anchor{opacity:1;}
.entry-anchor:hover{color:var(--red);}
.entry-date{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.06em;color:var(--dim);margin-top:5px;}
.entry-caret{flex-shrink:0;color:var(--dim);transition:transform .3s var(--ease),color .2s;padding:2px;}
.entry-head:hover .entry-caret{color:var(--ink);}
.entry.collapsed .entry-caret{transform:rotate(-90deg);}
.entry-body{overflow:hidden;transition:max-height .45s var(--ease),opacity .35s,margin-top .35s;max-height:8000px;opacity:1;margin-top:18px;}
.entry.collapsed .entry-body{max-height:0;opacity:0;margin-top:0;}

.blk{margin-bottom:18px;}
.blk:last-child{margin-bottom:0;}
.blk-p{font-size:15px;line-height:1.8;color:var(--sub);}
.blk-p b{color:var(--ink);font-weight:600;}
.blk-p a,.blk-link{color:var(--ink);border-bottom:1px solid var(--line);transition:color .2s,border-color .2s;}
.blk-p a:hover,.blk-link:hover{color:var(--red);border-color:var(--red);}
.blk-link{display:inline-block;font-size:15px;}
.blk-list{list-style:none;display:flex;flex-direction:column;gap:9px;padding-left:2px;}
.blk-list li{font-size:15px;line-height:1.6;color:var(--sub);display:flex;align-items:flex-start;gap:11px;}
.blk-list li::before{content:'';width:5px;height:5px;background:var(--red);margin-top:9px;flex-shrink:0;border-radius:50%;}
.blk-quote{border-left:2px solid var(--red);padding:4px 0 4px 18px;font-size:16px;line-height:1.7;color:var(--ink);}

/* Code block — black, rounded, syntax-coloured */
.blk-code{position:relative;}
.blk-code pre{margin:0;background:var(--blk);border:1px solid rgba(255,255,255,.06);border-radius:var(--r-card);box-shadow:var(--shadow);overflow:auto;padding:18px 20px;}
.blk-code code{font-family:'JetBrains Mono',monospace;font-size:13px;line-height:1.7;color:#c9cdd6;background:none;padding:0;white-space:pre;-webkit-text-size-adjust:100%;}
.blk-code .code-lang{position:absolute;top:11px;right:15px;z-index:1;font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:rgba(233,233,240,.32);pointer-events:none;}
.blk-code .embed-cap{margin-top:10px;}
/* token colours (highlight.js classes) */
.blk-code .hljs-comment,.blk-code .hljs-quote{color:#6b7080;font-style:italic;}
.blk-code .hljs-keyword,.blk-code .hljs-built_in,.blk-code .hljs-section,.blk-code .hljs-name{color:#f7768e;}
.blk-code .hljs-type,.blk-code .hljs-class .hljs-title,.blk-code .hljs-title.class_{color:#7dcfff;}
.blk-code .hljs-string,.blk-code .hljs-meta .hljs-string{color:#9ece6a;}
.blk-code .hljs-number,.blk-code .hljs-literal,.blk-code .hljs-symbol{color:#e0af68;}
.blk-code .hljs-title,.blk-code .hljs-title.function_{color:#7aa2f7;}
.blk-code .hljs-meta,.blk-code .hljs-meta-keyword{color:#bb9af7;}
.blk-code .hljs-attr,.blk-code .hljs-attribute,.blk-code .hljs-variable,.blk-code .hljs-params{color:#c9cdd6;}
.blk-code .hljs-deletion{color:#f7768e;}
.blk-code .hljs-addition{color:#9ece6a;}

.media-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;}
figure{margin:0;}
figure .frame{position:relative;border:1px solid var(--line);background:#E6E6E6;aspect-ratio:4/3;overflow:hidden;border-radius:var(--r-sm);}
figure .frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
figure .frame .ph-fill{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:rgba(13,14,20,.25);}
/* show the whole image at its own ratio instead of cropping to 4/3 */
.media-grid.is-natural .frame{aspect-ratio:auto;background:transparent;}
.media-grid.is-natural .frame img{position:static;width:100%;height:auto;object-fit:contain;}
figcaption{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.02em;color:var(--dim);margin-top:8px;}

/* Embeds (16:9) */
.embed{position:relative;width:100%;aspect-ratio:16/9;border:1px solid var(--line);background:var(--blk);overflow:hidden;border-radius:var(--r-sm);}
.embed iframe,.embed video{position:absolute;inset:0;width:100%;height:100%;border:0;}
.embed.facade{cursor:pointer;}
.embed .thumb{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.78;}
.embed .vbg{position:absolute;inset:0;background:radial-gradient(120% 120% at 50% 40%,#1a1a22,#0A0A0F);}
.embed .play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:60px;height:60px;border-radius:50%;background:rgba(245,245,242,.10);border:1px solid rgba(245,245,242,.30);display:flex;align-items:center;justify-content:center;transition:background .25s,border-color .25s,transform .3s var(--ease);}
.embed.facade:hover .play{background:var(--red);border-color:var(--red);transform:translate(-50%,-50%) scale(1.08);}
.embed .play svg{width:18px;height:18px;fill:rgba(245,245,242,.85);margin-left:3px;}
.embed.facade:hover .play svg{fill:#fff;}
.embed .vlabel{position:absolute;left:16px;bottom:14px;font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:rgba(245,245,242,.5);z-index:2;}
.embed-cap{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--dim);margin-top:8px;}

/* fade-up */
.fade-up{opacity:0;transform:translateY(20px);transition:opacity .8s var(--ease),transform .8s var(--ease);}
.fade-up.in{opacity:1;transform:none;}

/* Button (matches the white GitHub button on the homepage) */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;border:none;cursor:pointer;border-radius:var(--r-btn);transition:background .22s,box-shadow .22s,transform .3s var(--ease),color .22s;}
.btn:hover{transform:translateY(-2px);}
.btn-white{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line);}
.btn-white:hover{box-shadow:inset 0 0 0 1px var(--ink);}
.btn-white svg{width:13px;height:13px;fill:currentColor;}

/* Explore the code + repo button */
.pcode{display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:24px;padding:34px 0 4px;}
.pcode-txt{font-family:'Exo',sans-serif;font-size:clamp(18px,2.2vw,24px);font-weight:400;letter-spacing:-.015em;color:var(--ink);}

/* Footer */
.pfoot{text-align:center;padding:44px 0 64px;}
.pfoot-made{font-size:14px;color:var(--sub);}
.pfoot-made .heart{color:var(--red);}
.pfoot-updated{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.06em;color:var(--dim);margin-top:8px;}

/* Missing-project state */
.missing{min-height:70vh;display:flex;flex-direction:column;justify-content:center;gap:18px;}
.missing h1{font-size:clamp(28px,5vw,44px);font-weight:700;letter-spacing:-.03em;}
.missing a{color:var(--red);border-bottom:1px solid var(--red);align-self:flex-start;font-family:'JetBrains Mono',monospace;font-size:13px;}

@media (prefers-reduced-motion: reduce){
  .fade-up{opacity:1;transform:none;}
  .badge.live::before{animation:none;}
}
@media (max-width:820px){
  .phero{grid-template-columns:1fr;gap:26px;}
  .media{aspect-ratio:4/3;}
}
@media (max-width:560px){
  .nav-back span.txt{display:none;}
  .media-grid{grid-template-columns:1fr;}
}