/* ══════════════════════════════════════════════
   ALMANACH DU MATHEMARIUM — almanach.css
   Déposer dans : squelettes/almanach.css
   ══════════════════════════════════════════════ */
:root {
  --navy:  #0d1b2a;
  --gold:  #c8900a;
  --bg:    #f5f5f3;
  --white: #ffffff;
  --bord:  #e2e2de;
  --text:  #1a1a1a;
  --muted: #666;
  --faint: #aaa;
  /* domaines */
  --math-c:  #534AB7; --math-bg:  #EEEDFE;
  --info-c:  #185FA5; --info-bg:  #E6F1FB;
  --rob-c:   #993C1D; --rob-bg:   #FAECE7;
  --jv-c:    #0F6E56; --jv-bg:    #E1F5EE;
  --ina-c:   #854F0B; --ina-bg:   #FAEEDA;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--bg);color:var(--text);line-height:1.6}
a{color:inherit;text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.alm-inner{max-width:1060px;margin:0 auto;padding:0 1rem}

/* ── MASTHEAD ── */
.alm-head{background:var(--navy);position:sticky;top:0;z-index:99}
.alm-head .alm-inner{height:54px;display:flex;align-items:center;gap:1rem}
.alm-brand{display:flex;flex-direction:column;line-height:1.1;flex-shrink:0}
.alm-brand small{font-size:.6rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold)}
.alm-brand strong{font-size:1.05rem;color:#fff;font-weight:600;letter-spacing:.02em}
.alm-today{flex:1;text-align:center;font-size:.72rem;color:rgba(255,255,255,.4)}
.alm-back{font-size:.78rem;color:var(--gold)}
.alm-home{font-size:.72rem;color:rgba(255,255,255,.35);flex-shrink:0}
.alm-back:hover,.alm-home:hover{text-decoration:underline}

/* ── MOIS ── */
.alm-months{background:var(--white);border-bottom:1px solid var(--bord);
  overflow-x:auto;scrollbar-width:none}
.alm-months::-webkit-scrollbar{display:none}
.alm-months .alm-inner{display:flex;padding:0 .25rem}
.alm-m{padding:.6rem .9rem;font-size:.78rem;color:var(--muted);white-space:nowrap;
  border-bottom:2.5px solid transparent;transition:color .15s,border-color .15s;display:block}
.alm-m:hover{color:var(--text);text-decoration:none}
.alm-m.active{color:var(--navy);border-bottom-color:var(--gold);font-weight:600}

/* ── HERO ── */
.alm-hero{background:var(--white);border-bottom:1px solid var(--bord);padding:1.1rem 0 .7rem}
.alm-hero .alm-inner{display:flex;align-items:flex-end;gap:1.5rem;flex-wrap:wrap}
.alm-hero-date{display:flex;flex-direction:column;line-height:1}
.alm-hero-wd{font-size:.65rem;letter-spacing:.18em;text-transform:uppercase;color:var(--faint);margin-bottom:.2rem}
.alm-hero-num{font-size:3rem;font-weight:700;color:var(--navy);letter-spacing:-.02em}
.alm-hero-mo{font-size:1.3rem;color:var(--gold);margin-top:.05rem}
.alm-filters{flex:1;display:flex;gap:5px;flex-wrap:wrap;padding-bottom:.3rem}

/* Boutons filtre */
.alm-fb{padding:.3rem .7rem;border-radius:20px;font-size:.7rem;font-weight:500;
  cursor:pointer;border:1.5px solid var(--bord);background:var(--white);color:var(--muted);
  transition:opacity .15s}
.alm-fb:not(.active){opacity:.4}
.alm-fb.active{opacity:1}
.alm-fb.f-math{border-color:var(--math-c);color:var(--math-c);background:var(--math-bg)}
.alm-fb.f-info{border-color:var(--info-c);color:var(--info-c);background:var(--info-bg)}
.alm-fb.f-rob {border-color:var(--rob-c);color:var(--rob-c);background:var(--rob-bg)}
.alm-fb.f-jv  {border-color:var(--jv-c);color:var(--jv-c);background:var(--jv-bg)}
.alm-fb.f-ina {border-color:var(--ina-c);color:var(--ina-c);background:var(--ina-bg)}

/* ── LISTE ── */
.alm-list{max-width:1060px;margin:0 auto;padding:.9rem 1rem 3rem}

/* ── CARD ── */
.alm-card{display:flex;background:var(--white);border:1px solid var(--bord);
  border-left:4px solid var(--bord);border-radius:10px;margin-bottom:.7rem;
  overflow:hidden;transition:box-shadow .15s}
.alm-card:hover{box-shadow:0 2px 10px rgba(0,0,0,.07)}

/* Couleur bordure gauche par domaine */
.alm-card[data-dom="Mathématiques"]{border-left-color:var(--math-c)}
.alm-card[data-dom="Informatique"] {border-left-color:var(--info-c)}
.alm-card[data-dom="Robotique"]    {border-left-color:var(--rob-c)}
.alm-card[data-dom="Jeux Vidéo"]   {border-left-color:var(--jv-c)}
.alm-card[data-dom="Vidéo INA"]    {border-left-color:var(--ina-c)}

.alm-datecol{flex-shrink:0;width:62px;padding:.85rem .4rem .85rem .7rem;
  display:flex;flex-direction:column;align-items:center;
  border-right:1px solid var(--bord);background:#fafafa}
.alm-d-day{font-size:1.6rem;font-weight:700;color:var(--navy);line-height:1}
.alm-d-mo{font-size:.6rem;text-transform:uppercase;letter-spacing:.08em;color:var(--faint);margin-top:.1rem}
.alm-d-yr{font-size:.62rem;color:var(--faint);margin-top:.1rem}

.alm-body{flex:1;padding:.75rem 1rem;min-width:0}
.alm-tags{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:.35rem}
.alm-tag{font-size:.62rem;font-weight:600;padding:.15rem .4rem;border-radius:4px;
  background:#f0f0f0;color:#777}
.alm-src{font-size:.62rem;padding:.15rem .4rem;border-radius:4px;
  background:#f4f4f4;color:#bbb;font-style:italic}

.alm-titre{font-size:.92rem;font-weight:600;line-height:1.3;margin-bottom:.3rem}
.alm-titre a:hover{color:var(--navy);text-decoration:none}
.alm-extrait{font-size:.8rem;color:var(--muted);line-height:1.5;margin-bottom:.35rem}
.alm-lire{font-size:.72rem;color:var(--info-c);font-weight:500}
.alm-lire:hover{text-decoration:underline}

.alm-empty{background:var(--white);border:1px solid var(--bord);border-radius:10px;
  padding:2rem;text-align:center;color:var(--muted);font-size:.88rem;line-height:2}
.alm-empty a{color:var(--info-c)}

/* ── PAGE ARTICLE ── */
.alm-bread{max-width:780px;margin:0 auto;padding:.65rem 1rem .2rem;
  font-size:.72rem;color:var(--faint)}
.alm-bread a{color:var(--muted)}
.alm-bread a:hover{color:var(--navy)}

.art-main{max-width:780px;margin:0 auto;padding:.4rem 1rem 3rem}
.art-card{background:var(--white);border:1px solid var(--bord);border-left:4px solid var(--bord);
  border-radius:10px;overflow:hidden;margin-bottom:1.25rem}
.art-card[data-dom="Mathématiques"]{border-left-color:var(--math-c)}
.art-card[data-dom="Informatique"] {border-left-color:var(--info-c)}
.art-card[data-dom="Robotique"]    {border-left-color:var(--rob-c)}
.art-card[data-dom="Jeux Vidéo"]   {border-left-color:var(--jv-c)}
.art-card[data-dom="Vidéo INA"]    {border-left-color:var(--ina-c)}

.art-head{padding:1.25rem 1.25rem .9rem}
.art-datebox{display:inline-flex;align-items:baseline;gap:.5rem;
  background:#fafafa;border:1px solid var(--bord);border-radius:8px;
  padding:.45rem .8rem;margin-bottom:.75rem;float:left;margin-right:1rem}
.art-day{font-size:1.8rem;font-weight:700;color:var(--navy);line-height:1}
.art-month{font-size:.78rem;font-weight:600;color:var(--gold);text-transform:uppercase;
  letter-spacing:.05em;display:block}
.art-year{font-size:.72rem;color:var(--faint);display:block}
.art-badges{display:flex;gap:5px;flex-wrap:wrap;margin-bottom:.6rem;clear:none}
.art-h1{font-size:1.3rem;font-weight:700;line-height:1.3;color:var(--navy);
  margin:.5rem 0 .5rem;clear:both}
.art-chapo{font-size:.88rem;font-style:italic;color:var(--muted);line-height:1.65;
  padding:.7rem 1rem;background:#fafafa;border-left:3px solid var(--gold);
  border-radius:0 6px 6px 0;margin-top:.5rem}

.art-fig{border-top:1px solid var(--bord);border-bottom:1px solid var(--bord)}
.art-fig img{width:100%;max-height:380px;object-fit:cover}

.art-body{padding:1.1rem 1.25rem 1.25rem;font-size:.9rem;line-height:1.75;color:#333}
.art-body p{margin-bottom:.9em}
.art-body h2,.art-body h3{font-weight:600;margin:1.2em 0 .45em;color:var(--navy)}
.art-body a{color:var(--info-c);text-decoration:underline}
.art-body img{border-radius:6px;margin:1em auto}
.art-body .spip_documents{text-align:center}

.art-nav{display:grid;grid-template-columns:1fr 1fr;gap:.65rem;margin-bottom:.9rem}
.art-navlink{display:flex;flex-direction:column;gap:.15rem;padding:.7rem .9rem;
  background:var(--white);border:1px solid var(--bord);border-radius:10px;transition:border-color .15s}
.art-navlink:hover{border-color:var(--navy);text-decoration:none}
.art-navlink--r{text-align:right}
.art-navdir{font-size:.65rem;text-transform:uppercase;letter-spacing:.1em;color:var(--faint)}
.art-navtitle{font-size:.8rem;font-weight:500;color:var(--text);line-height:1.3}
.art-retour{text-align:center;font-size:.78rem;color:var(--info-c);padding:.4rem}
.art-retour a{text-decoration:none}
.art-retour a:hover{text-decoration:underline}

/* ── FOOTER ── */
.alm-footer{background:var(--navy);padding:.85rem 0;margin-top:2rem}
.alm-footer .alm-inner{display:flex;justify-content:space-between;
  font-size:.7rem;color:rgba(255,255,255,.3)}

/* ── RESPONSIVE ── */
@media(max-width:600px){
  .alm-datecol{width:52px;padding:.7rem .35rem .7rem .55rem}
  .alm-d-day{font-size:1.35rem}
  .alm-hero-num{font-size:2.3rem}
  .art-nav{grid-template-columns:1fr}
  .art-navlink--r{text-align:left}
  .alm-today,.alm-home{display:none}
  .art-h1{font-size:1.1rem}
}