/* ==========================================================
   Philippe Fèvre — personal publishing site
   Tokens
   ========================================================== */
:root{
  --paper:#F5F4EF;        /* page background, cool paper */
  --paper-2:#ECEAE3;      /* panels, cards */
  --ink:#171A1E;          /* body text */
  --ink-2:#4A4F56;        /* secondary text */
  --rule:#CFCCC3;         /* hairlines */
  --petrol:#1F4A5C;       /* single accent */
  --petrol-2:#163A49;     /* accent hover */

  --font-display:"Newsreader", Georgia, "Times New Roman", serif;
  --font-body:"Source Serif 4", Georgia, serif;
  --font-mono:"IBM Plex Mono", ui-monospace, Menlo, monospace;

  --measure:68ch;
  --max:1120px;
  --gutter:clamp(20px, 4vw, 48px);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:1.0625rem;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--petrol);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--petrol-2)}
:focus-visible{outline:2px solid var(--petrol);outline-offset:3px}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:500;line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2.2rem,5vw,3.6rem)}
h2{font-size:clamp(1.6rem,3vw,2.2rem)}
h3{font-size:1.35rem}
p{margin:0 0 1.2em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
.mono{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-2)}
.eyebrow{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;color:var(--petrol);margin:0 0 1rem}
.rule{border:0;border-top:1px solid var(--rule);margin:0}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- header ---------- */
.site-header{border-bottom:1px solid var(--rule)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:72px}
.brand{font-family:var(--font-display);font-size:1.35rem;color:var(--ink);text-decoration:none;letter-spacing:-.01em}
.brand small{display:block;font-family:var(--font-mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);margin-top:2px}
.nav{display:flex;gap:1.6rem;align-items:center}
.nav a{font-family:var(--font-mono);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);text-decoration:none;padding:.4rem 0;border-bottom:1px solid transparent}
.nav a:hover,.nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--petrol)}
.nav-toggle{display:none;background:none;border:1px solid var(--rule);padding:.5rem .7rem;font-family:var(--font-mono);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;cursor:pointer;color:var(--ink)}
@media (max-width:760px){
  .nav-toggle{display:inline-block}
  .nav{display:none;position:absolute;left:0;right:0;top:72px;background:var(--paper);border-bottom:1px solid var(--rule);flex-direction:column;align-items:flex-start;gap:0;padding:.5rem var(--gutter) 1rem;z-index:10}
  .nav.open{display:flex}
  .nav a{padding:.7rem 0;width:100%;border-bottom:1px solid var(--rule)}
  .site-header{position:relative}
}

/* ---------- hero ---------- */
.hero{padding:clamp(3rem,8vw,6.5rem) 0 clamp(2.5rem,6vw,4.5rem)}
.hero h1{max-width:20ch;font-weight:400}
.hero h1 em{font-style:italic;color:var(--petrol)}
.hero .lede{max-width:var(--measure);font-size:1.2rem;color:var(--ink-2);margin-top:1.4rem}
.hero .lede strong{color:var(--ink);font-weight:600}

/* ---------- article listing ---------- */
.section{padding:clamp(2.5rem,6vw,4.5rem) 0}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;margin-bottom:1.5rem}
.section-head h2{margin:0}
.section-head a{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;text-decoration:none;white-space:nowrap}

.article-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--rule)}
.article-list > li{border-bottom:1px solid var(--rule)}
.card{display:grid;grid-template-columns:150px 1fr;gap:1.5rem;padding:1.6rem 0;text-decoration:none;color:inherit}
.card:hover .card-title{color:var(--petrol)}
.card-meta{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);line-height:1.8}
.card-meta .lang{display:inline-block;border:1px solid var(--rule);padding:0 .35rem;border-radius:2px}
.card-title{font-family:var(--font-display);font-size:1.55rem;font-weight:500;line-height:1.2;margin:0 0 .5rem;letter-spacing:-.01em;transition:color .15s}
.card-thesis{font-family:var(--font-display);font-style:italic;font-size:1.12rem;color:var(--ink-2);margin:0 0 .6rem;max-width:var(--measure)}
.card-tags{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2)}
.card-tags span+span::before{content:" · "}
@media (max-width:640px){.card{grid-template-columns:1fr;gap:.6rem}.card-meta br{display:none}.card-meta{display:flex;gap:1rem;align-items:center}}

/* ---------- filters ---------- */
.filters{display:flex;flex-wrap:wrap;gap:.75rem 1.5rem;align-items:center;margin:1.5rem 0 2rem}
.filters fieldset{border:0;margin:0;padding:0;display:flex;gap:.4rem;align-items:center;flex-wrap:wrap}
.filters legend{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);float:left;margin-right:.6rem;padding:0}
.chip{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;background:none;border:1px solid var(--rule);color:var(--ink-2);padding:.35rem .7rem;border-radius:2px;cursor:pointer}
.chip[aria-pressed="true"]{background:var(--petrol);border-color:var(--petrol);color:#fff}
.search{flex:1 1 220px;min-width:200px}
.search input{width:100%;font-family:var(--font-body);font-size:1rem;padding:.55rem .8rem;border:1px solid var(--rule);background:#fff;border-radius:2px;color:var(--ink)}
.empty{padding:2rem 0;color:var(--ink-2);font-style:italic;display:none}
.empty.show{display:block}

/* ---------- article page ---------- */
.article-head{padding:clamp(2.5rem,6vw,4.5rem) 0 2rem;max-width:820px}
.article-head h1{font-weight:400}
.article-head .thesis{font-family:var(--font-display);font-style:italic;font-size:1.35rem;color:var(--ink-2);max-width:var(--measure)}
.article-layout{display:grid;grid-template-columns:200px minmax(0,var(--max));gap:3rem;padding-bottom:4rem}
.article-aside{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);line-height:1.9;position:sticky;top:2rem;align-self:start}
.article-aside dt{color:var(--ink);margin-top:.9rem}
.article-aside dd{margin:0}
.article-aside dl{margin:0}
.prose{max-width:var(--measure);font-size:1.125rem;line-height:1.7}
.prose h2{margin-top:2.2em}
.prose h3{margin-top:1.8em}
.prose blockquote{margin:1.6em 0;padding-left:1.2em;border-left:2px solid var(--petrol);font-family:var(--font-display);font-style:italic;font-size:1.2rem;color:var(--ink-2)}
.prose figure{margin:2em 0}
.prose figcaption{font-family:var(--font-mono);font-size:.74rem;color:var(--ink-2);margin-top:.5em}
.prose .references{font-size:.95rem;color:var(--ink-2);padding-left:1.2em}
.prose .references li{margin-bottom:.5em}
.prose p:first-of-type::first-letter{font-family:var(--font-display);font-size:3.2em;float:left;line-height:.85;padding:.08em .12em 0 0;color:var(--petrol)}
@media (max-width:820px){
  .article-layout{grid-template-columns:1fr;gap:1.5rem}
  .article-aside{position:static;display:flex;flex-wrap:wrap;gap:0 1.5rem;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:.6rem 0}
  .article-aside dt{margin-top:0;margin-right:.4rem}
  .article-aside dl{display:flex;flex-wrap:wrap;gap:0 1.5rem}
}
.share{margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--rule)}
.share a{margin-right:1.2rem;font-family:var(--font-mono);font-size:.76rem;letter-spacing:.06em;text-transform:uppercase;text-decoration:none}
.pager{display:flex;justify-content:space-between;gap:2rem;margin-top:2rem}
.pager a{font-family:var(--font-display);font-size:1.05rem;text-decoration:none;max-width:45%}
.pager a small{display:block;font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);margin-bottom:.2rem}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:3rem;align-items:start}
.about-grid .portrait{background:var(--paper-2);aspect-ratio:4/5;display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:.74rem;color:var(--ink-2);text-transform:uppercase;letter-spacing:.08em;text-align:center;padding:1rem}
.facts{list-style:none;margin:0;padding:0;border-top:1px solid var(--rule)}
.facts li{display:grid;grid-template-columns:150px 1fr;gap:1rem;padding:.8rem 0;border-bottom:1px solid var(--rule)}
.facts li span:first-child{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);padding-top:.25rem}
@media (max-width:820px){.about-grid{grid-template-columns:1fr}}
@media (max-width:520px){.facts li{grid-template-columns:1fr;gap:.2rem}}

/* ---------- podcast ---------- */
.episodes{list-style:none;margin:0;padding:0;border-top:1px solid var(--rule)}
.episode{border-bottom:1px solid var(--rule);padding:2rem 0;display:grid;grid-template-columns:150px 1fr;gap:1.5rem}
.episode .embed{margin:1rem 0;aspect-ratio:16/9;background:var(--paper-2)}
.episode .embed iframe{width:100%;height:100%;border:0}
.episode details{margin-top:.5rem}
.episode summary{cursor:pointer;font-family:var(--font-mono);font-size:.76rem;letter-spacing:.08em;text-transform:uppercase;color:var(--petrol)}
@media (max-width:640px){.episode{grid-template-columns:1fr;gap:.6rem}}
.platforms a{margin-right:1.4rem}

/* ---------- forms / newsletter ---------- */
.panel{background:var(--paper-2);padding:clamp(1.5rem,4vw,2.5rem);border-radius:2px}
.panel h2{margin-top:0}
.form{display:grid;gap:1rem;max-width:560px}
.form label{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);display:block;margin-bottom:.35rem}
.form input,.form textarea,.form select{width:100%;font-family:var(--font-body);font-size:1rem;padding:.6rem .8rem;border:1px solid var(--rule);background:#fff;border-radius:2px;color:var(--ink)}
.form textarea{min-height:160px;resize:vertical}
.btn{display:inline-block;font-family:var(--font-mono);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;background:var(--petrol);color:#fff;border:0;padding:.8rem 1.4rem;border-radius:2px;cursor:pointer;text-decoration:none}
.btn:hover{background:var(--petrol-2);color:#fff}
.newsletter{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:2rem;align-items:center}
.newsletter form{display:flex;gap:.5rem}
.newsletter input{flex:1;font-family:var(--font-body);font-size:1rem;padding:.7rem .8rem;border:1px solid var(--rule);background:#fff;border-radius:2px}
@media (max-width:720px){.newsletter{grid-template-columns:1fr}}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--rule);margin-top:3rem;padding:2.5rem 0 3rem;color:var(--ink-2);font-size:.92rem}
.site-footer .wrap{display:grid;grid-template-columns:1fr auto;gap:1.5rem;align-items:start}
.site-footer .links a{margin-right:1.4rem;font-family:var(--font-mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;text-decoration:none}
.site-footer .legal{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.04em}
@media (max-width:640px){.site-footer .wrap{grid-template-columns:1fr}}