/* ============================================================
   Damien Scieur — homepage
   Single style: dark, bold, fixed left sidebar nav, monospace
   (Consolas) green titles with terminal-style prefixes, and
   brutalist sharp boxes. Hand-written, no framework, no build.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --bg:#0a0b0e; --bg-soft:#101218; --panel:#15171e; --panel-2:#0d0f14;
  --border:#262a35; --border-2:#3b4150;
  --text:#eceef3; --text-dim:#a6adbd; --muted:#727a8c;
  --accent:#c6f24e; --accent-2:#d8ff6b; --link:#5cc8ff; --link-dim:#5cc8ff;
  --glow1:rgba(198,242,78,.05); --glow2:rgba(92,200,255,.04);
  --header-bg:var(--bg-soft);
  --font-head:Consolas,'JetBrains Mono',ui-monospace,monospace;
  --font-body:'Inter','Helvetica Neue',Arial,sans-serif;
  --font-mono:Consolas,'JetBrains Mono',monospace;
  --rail:256px;
  /* spacing scale + type scale + motion + brutalist lift */
  --space-1:4px; --space-2:8px; --space-3:12px; --space-4:16px;
  --space-5:24px; --space-6:32px; --space-7:48px; --space-8:64px;
  --fs-h1:2rem; --fs-h2:1.3rem; --fs-h3:1.05rem; --fs-h4:.95rem;
  --measure:68ch; --ease:cubic-bezier(.2,.6,.2,1);
  --shadow-hard:4px 4px 0 var(--accent); --lift:translate(-2px,-2px);
}

* { box-sizing:border-box; }
html { -webkit-text-size-adjust:100%; scroll-behavior:smooth; }

body {
  margin:0; color:var(--text); font-size:16px; line-height:1.65; overflow-wrap:break-word;
  font-family:var(--font-body); background-color:var(--bg);
  background-image:
    radial-gradient(900px 500px at 80% -10%, var(--glow1), transparent 60%),
    radial-gradient(700px 500px at -10% 0%, var(--glow2), transparent 55%);
  background-attachment:fixed; min-height:100vh;
}

::selection { background:color-mix(in srgb, var(--accent) 32%, transparent); }
::-webkit-scrollbar { width:11px; height:11px; }
::-webkit-scrollbar-track { background:var(--bg); }
::-webkit-scrollbar-thumb { background:var(--bg-soft); border:2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background:var(--border-2); }

main { display:block; }
section { display:block; margin:0 0 var(--space-6) 0; }
a:focus-visible, button:focus-visible { outline:2px solid var(--link); outline-offset:2px; }

/* ---------- headings: mono green titles with terminal-style prefixes ---------- */
h1,h2,h3,h4 { font-family:var(--font-head); color:var(--accent-2); line-height:1.3; font-weight:700; font-feature-settings:"ss01"; }
.content h1 { font-size:var(--fs-h1); margin:.2em 0 .6em; letter-spacing:-.02em; }
.content h1::before { content:"# "; color:var(--muted); }
.content h2 { font-size:var(--fs-h2); margin:var(--space-7) 0 var(--space-4); padding-bottom:6px; border-bottom:2px solid var(--border); letter-spacing:-.01em; scroll-margin-top:var(--space-5); }
.content h2::before { content:"// "; color:var(--accent); }
.content h3 { font-size:var(--fs-h3); color:var(--accent-2); margin:var(--space-5) 0 var(--space-2); letter-spacing:-.01em; scroll-margin-top:var(--space-5); }
.content h3::before { content:"› "; color:var(--muted); }
.content h4 { font-size:var(--fs-h4); color:var(--text-dim); font-weight:500; }
/* cap prose measure for readability (cards/publications stay full width) */
.content > section p, .content > section ul, .content > section ol, .content p, .content blockquote { max-width:var(--measure); }

/* ---------- links ---------- */
a { color:var(--link); text-decoration:none;
  background-image:linear-gradient(var(--link-dim),var(--link-dim));
  background-position:0 100%; background-repeat:no-repeat; background-size:0% 1px;
  transition:background-size .22s ease, color .15s ease; }
a:hover { color:var(--link); background-size:100% 1px; }
a:visited { color:var(--link); }

hr { height:0; border:0; border-top:1px solid var(--border); margin:22px 0; }

.content ul { list-style:none; padding-left:26px; }
.content ul li { position:relative; margin-bottom:6px; }
.content ul li::before { content:"▸"; position:absolute; left:-22px; top:1px; color:var(--accent); font-size:.85em; }
.content ol { padding-left:26px; }

blockquote { color:var(--text-dim); padding-left:14px; border-left:2px solid var(--border-2); margin-left:0; }
code { font-family:var(--font-mono); font-size:.9em; color:var(--accent-2); background:color-mix(in srgb, var(--accent) 10%, transparent); padding:.1em .4em; }
pre { font-family:var(--font-mono); background:var(--panel-2); border:1px solid var(--border); border-left:3px solid var(--accent); padding:12px 14px; color:var(--accent-2); overflow-x:auto; }
pre code { background:none; padding:0; }
code.random { color:var(--accent-2); }

/* ============================================================
   Fixed left sidebar (brand + nav)
   ============================================================ */
header {
  position:fixed; top:0; left:0; bottom:0; width:var(--rail); height:100vh; overflow-y:auto;
  border-right:2px solid var(--border); background:var(--header-bg); padding:34px 0; z-index:50;
}
header .container { width:auto; max-width:none; margin:0; padding:0 26px; }
header .brand { font-family:var(--font-head); font-size:1.32rem; font-weight:700; margin:0; letter-spacing:-.5px; }
header .brand::before { content:"~$ "; color:var(--muted); }
header .brand a { color:var(--accent-2); background:none; }
header .brand a:hover { filter:brightness(1.15); }

nav.topnav { display:flex; flex-direction:column; gap:4px; margin-top:26px; }
nav.topnav a.navlink {
  font-family:var(--font-mono); font-size:.9rem; font-weight:500; color:var(--text-dim);
  padding:9px 14px; border:1px solid transparent; background:none;
  transition:color .15s, border-color .15s, background .15s;
}
nav.topnav a.navlink:hover { color:var(--accent-2); background:color-mix(in srgb, var(--accent) 9%, transparent); }
nav.topnav a.navlink.active { background:var(--accent); color:#0a0b0e; border-color:var(--accent); font-weight:700; }
/* live terminal caret on the active item */
nav.topnav a.navlink.active::after { content:"_"; margin-left:.35ch; color:#0a0b0e; animation:caret 1.1s steps(1) infinite; }
@keyframes caret { 50% { opacity:0; } }

/* section submenu under the active item */
nav.topnav .subnav { list-style:none; margin:3px 0 6px; padding:2px 0; display:flex; flex-direction:column; gap:0; }
nav.topnav .subnav li { margin:0; }
nav.topnav .subnav li::before { content:none; }
/* each link carries the vertical rule, so they stack into one continuous | */
nav.topnav .subnav a { display:block; font-family:var(--font-mono); font-size:.76rem; color:var(--muted); padding:4px 8px 4px 14px; background:none; border-left:1px solid var(--border); }
nav.topnav .subnav a:hover { color:var(--accent-2); background:color-mix(in srgb, var(--accent) 8%, transparent); border-left-color:var(--border-2); }
nav.topnav .subnav a.current { color:var(--accent-2); border-left:2px solid var(--accent); padding-left:13px; }

/* content + footer offset from the rail, with breathing room */
body > .container.content { margin-left:var(--rail); max-width:880px; width:auto; padding:46px 48px 0 76px; }
footer { margin-left:var(--rail); border-top:1px solid var(--border); margin-top:50px; padding:22px 0 46px 76px; color:var(--muted); font-size:.82rem; }
footer .footer-links { font-family:var(--font-mono); font-size:.8rem; margin:0 0 8px; }
footer .footer-links a { margin:0 2px; }

/* ---------- home intro ---------- */
.intro { display:flex; align-items:center; gap:28px; margin-bottom:8px; flex-wrap:wrap; }
.intro img.avatar { height:142px; width:142px; object-fit:cover; border:2px solid var(--border-2); box-shadow:5px 5px 0 var(--panel); transition:box-shadow .18s var(--ease); }
.intro img.avatar:hover { box-shadow:5px 5px 0 var(--accent); }
.intro .intro-text { flex:1; min-width:240px; }
.intro .role { color:var(--text-dim); margin:2px 0; font-size:.98rem; }
.intro .role:first-child { color:var(--accent); font-family:var(--font-mono); font-size:.92rem; }
.intro-links { font-family:var(--font-mono); font-size:.82rem; margin-top:10px; color:var(--muted); }
.intro-links a { margin:0 3px; }

/* ============================================================
   Publications
   ============================================================ */
.pub-controls { font-family:var(--font-mono); font-size:.78rem; color:var(--muted); margin:8px 0 26px; padding:8px 12px; border:1px dashed var(--border); font-variant-numeric:tabular-nums; }
.pub-controls::before { content:"› "; color:var(--accent); }
.pub-venue, .pub-authors-short { font-variant-numeric:tabular-nums; }
.pub-group { margin-bottom:34px; }
/* IDE-style code folding: [-]/[+] marker + a | guide down the section */
.pub-group > h2.group-toggle { cursor:pointer; user-select:none; }
.pub-group > h2.group-toggle::before { content:"[-] "; color:var(--accent); }
.pub-group.collapsed > h2.group-toggle::before { content:"[+] "; }
.pub-group .pub-list { border-left:1px solid var(--border); margin-left:6px; padding-left:16px; }
.pub-group.collapsed .pub-list { display:none; }
.pub-list { list-style:none; padding:0; margin:0; }
.pub-item { position:relative; padding:14px 16px; margin:8px 0; border:2px solid transparent; transition:background .15s, border-color .15s, box-shadow .18s var(--ease); }
.pub-item:hover { background:var(--panel); border-color:var(--border-2); box-shadow:var(--shadow-hard); }
.pub-title { font-weight:600; color:var(--text); font-size:1.02rem; line-height:1.4; }
.pub-title a { color:var(--text); background:none; }
.pub-title a:hover { color:var(--link); }
.pub-authors { color:var(--text-dim); font-size:.92rem; margin-top:2px; }
.pub-authors .me { font-weight:700; }
.pub-venue { color:var(--muted); font-style:italic; font-size:.88rem; }
.pub-links { margin-top:8px; display:flex; flex-wrap:wrap; gap:8px; }
.pub-links a, .pub-links button { font-family:var(--font-mono); font-size:.74rem; padding:3px 11px; background:var(--panel); border:1px solid var(--border-2); color:var(--link); cursor:pointer; transition:background .15s, color .15s, box-shadow .15s; }
.pub-links button { color:var(--accent); }
.pub-links a:hover, .pub-links button:hover { color:var(--accent-2); box-shadow:3px 3px 0 var(--accent); }
.pub-links button.active { background:var(--accent); color:#0a0b0e; border-color:var(--accent); }
.pub-links button.active:hover { color:#0a0b0e; background:var(--accent); border-color:#0a0b0e; box-shadow:3px 3px 0 var(--accent); }
.pub-abstract { display:none; margin-top:10px; padding:12px 16px; background:var(--panel); border:1px solid var(--border); border-left:3px solid var(--accent); font-size:.9rem; color:var(--text-dim); line-height:1.6; }
.pub-abstract.open { display:block; }
.pub-bibtex { display:none; position:relative; margin-top:10px; }
.pub-bibtex.open { display:block; }
.pub-bibtex pre { margin:0; font-family:var(--font-mono); font-size:.74rem; line-height:1.5; white-space:pre; overflow-x:auto; max-width:100%; background:var(--panel-2); border:1px solid var(--border); border-left:3px solid var(--link); padding:10px 40px 10px 12px; color:var(--text-dim); }
.bibtex-copy { position:absolute; top:6px; right:6px; font-family:var(--font-mono); font-size:.7rem; padding:2px 9px; background:var(--panel); border:1px solid var(--border-2); color:var(--accent); cursor:pointer; transition:color .15s, box-shadow .15s; }
.bibtex-copy:hover { color:var(--accent-2); box-shadow:3px 3px 0 var(--accent); }
#publications.compact .pub-bibtex.open { display:block; flex-basis:100%; width:100%; margin-top:6px; }
/* clicking an open panel must not collapse the row (so text is selectable) */
#publications.compact .pub-abstract, #publications.compact .pub-bibtex { cursor:auto; }
.pub-authors-short { display:none; }
/* the publications list lives inside .content but must NOT get the ▸ bullet */
.content .pub-list li::before { content:none; }
/* make hidden actually hide, even under compact's display:flex */
#publications .pub-item[hidden], #publications .pub-group[hidden] { display:none !important; }

/* toolbar: search box (with icon) + a right-aligned view toggle */
.pub-toolbar { display:flex; gap:10px; align-items:center; flex-wrap:wrap; margin-bottom:14px; }
.pub-searchbox { position:relative; flex:1; min-width:220px; display:flex; align-items:center; }
.pub-searchbox .ic { position:absolute; left:11px; color:var(--muted); font-size:.95rem; pointer-events:none; }
.pub-search { width:100%; font-family:var(--font-mono); font-size:.85rem; color:var(--text); background:var(--panel-2); border:1px solid var(--border-2); padding:8px 12px 8px 32px; }
.pub-search:focus { outline:none; border-color:var(--accent); box-shadow:0 0 0 1px var(--accent); }
.pub-search::placeholder { color:var(--muted); }
.pub-mode, .pub-collapse-all { font-family:var(--font-mono); font-size:.78rem; color:var(--accent); background:var(--panel); border:1px solid var(--border-2); padding:8px 14px; cursor:pointer; transition:color .15s, box-shadow .15s; }
.pub-collapse-all { margin-left:auto; }
.pub-mode:hover, .pub-collapse-all:hover { color:var(--accent-2); box-shadow:3px 3px 0 var(--accent); }
.pub-noresults { color:var(--muted); font-family:var(--font-mono); }

/* compact mode: title + short author + venue + buttons on 1–2 lines.
   Clicking the title expands the abstract (full-width). */
#publications.compact .pub-group { margin-bottom:18px; }
#publications.compact .pub-item { display:flex; flex-wrap:wrap; align-items:baseline; gap:2px 10px; padding:5px 10px; margin:2px 0; cursor:pointer; }
#publications.compact .pub-links a, #publications.compact .pub-links button { cursor:pointer; }
#publications.compact .pub-authors { display:none; }
#publications.compact .abs-toggle { display:none; }
#publications.compact .pub-abstract { display:none; }
#publications.compact .pub-abstract.open { display:block; flex-basis:100%; width:100%; margin-top:6px; }
#publications.compact .pub-authors-short { display:inline; font-size:.82rem; color:var(--text-dim); }
#publications.compact .pub-title { font-size:.94rem; cursor:pointer; }
#publications.compact .pub-venue { font-size:.82rem; }
#publications.compact .pub-links { margin-top:0; }

/* ============================================================
   Cards (projects) — brutalist sharp boxes
   ============================================================ */
.card { border:2px solid var(--border-2); background:var(--panel); padding:22px 24px; margin-bottom:22px; overflow:hidden; transition:border-color .18s var(--ease), transform .18s var(--ease), box-shadow .18s var(--ease); }
.card:hover { border-color:var(--accent); box-shadow:var(--shadow-hard); transform:var(--lift); }
.card h2 { margin-top:0; border:0; padding:0; }
.card h2::before { content:none; }
.card img.thumb { float:right; max-width:30%; margin:0 0 14px 22px; border:1px solid var(--border); }

.talk-item { padding:12px 0; border-bottom:1px solid var(--border); }
.talk-item .meta { color:var(--muted); font-family:var(--font-mono); font-size:.82rem; margin-top:2px; }
iframe { border:2px solid var(--border-2); }

/* ============================================================
   Motion / responsive — rail collapses to a top bar on small screens
   ============================================================ */
@media (prefers-reduced-motion:reduce) { *, *::before, *::after { animation:none !important; transition:none !important; scroll-behavior:auto !important; } }
/* tablets / narrow laptops: the fixed rail collapses to a top bar */
@media (max-width:920px) {
  header { position:static; width:auto; height:auto; overflow:visible; border-right:none; border-bottom:2px solid var(--border); padding:16px 0 6px; }
  header .container { width:92%; max-width:1000px; margin:0 auto; padding:0; }
  header .brand { font-size:1.25rem; }
  nav.topnav { flex-direction:row; flex-wrap:wrap; margin-top:14px; }
  nav.topnav .subnav { display:none; }
  body > .container.content { margin-left:0; width:92%; max-width:1000px; margin-inline:auto; padding:24px 0 0; }
  footer { margin-left:0; width:92%; max-width:1000px; margin-inline:auto; padding:22px 0 46px; }
}
/* phones */
@media (max-width:560px) {
  header .brand { font-size:1.1rem; }
  nav.topnav a.navlink { padding:5px 9px; font-size:.78rem; }
  .content h1 { font-size:1.55rem; }
  .intro { gap:16px; }
  .intro img.avatar { height:96px; width:96px; }
  .card { padding:18px 16px; }
  .card img.thumb { float:none; display:block; max-width:90%; margin:0 0 14px; }
  .pub-toolbar { gap:8px; }
  .pub-mode { margin-left:0; }
  .pub-item { padding:12px 10px; }
}