/* ===== GROUPE_SANGUIN.CSS ===== */
@import url('https://fonts.googleapis.com/css2?family=Merriweather:ital,wght@0,400;0,700;1,400&family=Poppins:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --cream:   #fdfaf8;
  --warm:    #fff0f0;
  --red:     #b91c1c;
  --red-mid: #dc2626;
  --red-l:   #ef4444;
  --red-pale:rgba(185,28,28,.1);
  --red-glow:rgba(185,28,28,.05);
  --rose:    #fecaca;
  --text-d:  #1a0000;
  --text-b:  #3d0000;
  --text-m:  #8a2020;
  --text-l:  #c47070;
  --border:  #fca5a5;
  --border-r:rgba(185,28,28,.2);
  --blue:    #1d4ed8;
  --font-h:  'Merriweather', serif;
  --font-b:  'Poppins', sans-serif;
  --font-m:  'IBM Plex Mono', monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-b);background:var(--cream);color:var(--text-b);line-height:1.78;overflow-x:hidden}
body::before{content:'';position:fixed;inset:0;background-image:radial-gradient(circle,rgba(185,28,28,.022) 1px,transparent 1px);background-size:22px 22px;pointer-events:none;z-index:0}
::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:var(--cream)}::-webkit-scrollbar-thumb{background:var(--red);border-radius:2px}
#progress-bar{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,#7f1d1d,var(--red),var(--red-l));width:0%;z-index:200;transition:width .1s}
nav{position:fixed;top:0;left:0;right:0;z-index:100;height:62px;display:flex;align-items:center;justify-content:space-between;padding:0 3rem;background:rgba(253,250,248,.95);backdrop-filter:blur(18px);border-bottom:1px solid var(--border)}
.nav-logo{display:flex;align-items:center;gap:.8rem;text-decoration:none}
.nav-drop{font-size:1.4rem}
.nav-name{font-family:var(--font-h);font-size:.95rem;color:var(--text-d)}
.nav-links{display:flex;gap:2rem;list-style:none}
.nav-links a{font-family:var(--font-m);font-size:.7rem;color:var(--text-l);text-decoration:none;letter-spacing:.06em;transition:color .2s}
.nav-links a:hover{color:var(--red)}
.nav-tag{font-family:var(--font-m);font-size:.67rem;color:var(--red);background:var(--red-pale);border:1px solid var(--border-r);padding:.28rem .8rem;border-radius:100px}
.hero{position:relative;z-index:1;min-height:100vh;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:4rem;padding:8rem 3rem 4rem}
.hero-bg{position:absolute;right:0;top:0;bottom:0;width:46%;background:linear-gradient(135deg,var(--warm),var(--rose));z-index:-1;border-radius:60% 0 0 60%}
.hero-tag{font-family:var(--font-m);font-size:.68rem;color:var(--red);letter-spacing:.2em;text-transform:uppercase;margin-bottom:1.2rem;display:flex;align-items:center;gap:.7rem}
.hero-tag::before{content:'';width:20px;height:1px;background:var(--red)}
.hero h1{font-family:var(--font-h);font-size:clamp(2.8rem,6vw,6rem);font-weight:700;line-height:1;color:var(--text-d);margin-bottom:1.2rem}
.hero h1 em{font-style:italic;color:var(--red);display:block;font-size:.5em;font-weight:400;margin-top:.3rem}
.hero-desc{font-size:.95rem;color:var(--text-m);max-width:460px;line-height:1.88;margin-bottom:2.5rem;font-weight:300}
.hero-kpis{display:flex;gap:2.5rem;flex-wrap:wrap}
.kpi{display:flex;flex-direction:column}
.kpi-n{font-family:var(--font-h);font-size:2.2rem;color:var(--red);line-height:1}
.kpi-l{font-family:var(--font-m);font-size:.63rem;color:var(--text-l);letter-spacing:.1em;text-transform:uppercase;margin-top:.3rem}
.blood-vis{display:flex;align-items:center;justify-content:center;position:relative;z-index:1}
.band{background:var(--red);padding:3.5rem 3rem;z-index:1;position:relative}
.band-inner{max-width:1160px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;text-align:center}
.bn{font-family:var(--font-h);font-size:2.8rem;color:rgba(255,255,255,.9);line-height:1}
.bl{font-family:var(--font-m);font-size:.65rem;color:rgba(255,255,255,.4);letter-spacing:.1em;margin-top:.4rem}
.sec{position:relative;z-index:1;max-width:1160px;margin:0 auto;padding:5rem 3rem}
.shead{display:flex;align-items:baseline;gap:1rem;margin-bottom:3rem;padding-bottom:.8rem;border-bottom:1px solid var(--border)}
.snum{font-family:var(--font-m);font-size:.68rem;color:var(--red);letter-spacing:.18em;flex-shrink:0}
.stitle{font-family:var(--font-h);font-size:clamp(1.5rem,2.8vw,2.3rem);color:var(--text-d)}
/* Compatibility matrix */
.compat-matrix{overflow-x:auto}
.compat-matrix table{width:100%;border-collapse:collapse;font-size:.85rem}
.compat-matrix th{font-family:var(--font-m);font-size:.72rem;padding:.7rem 1rem;text-align:center;border:1px solid var(--border);background:var(--warm)}
.compat-matrix td{padding:.65rem 1rem;text-align:center;border:1px solid var(--border);font-size:1.1rem;font-weight:700}
.cell-ok{background:#d1fae5;color:#065f46}
.cell-no{background:#fee2e2;color:#991b1b}
.group-circle{display:inline-flex;width:42px;height:42px;border-radius:50%;align-items:center;justify-content:center;font-family:var(--font-h);font-size:.9rem;font-weight:700;color:white}
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:6px}
table{width:100%;border-collapse:collapse;font-size:.87rem}
thead{background:var(--warm)}
th{font-family:var(--font-m);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:var(--red);padding:.9rem 1.2rem;text-align:left;border-bottom:1px solid var(--border)}
td{padding:.9rem 1.2rem;border-bottom:1px solid rgba(185,28,28,.06);color:var(--text-b);vertical-align:top}
tr:hover td{background:var(--red-glow)}
tr:last-child td{border-bottom:none}
.tag{font-family:var(--font-m);font-size:.62rem;padding:.18rem .55rem;border-radius:3px;text-transform:uppercase;letter-spacing:.06em}
.tag-r{background:var(--red-pale);color:#991b1b;border:1px solid var(--border-r)}
.tag-g{background:#d1fae5;color:#065f46;border:1px solid #a7f3d0}
.alert-r{background:var(--red-pale);border:1px solid var(--border-r);border-left:3px solid var(--red);padding:1.2rem 1.5rem;font-size:.87rem;color:var(--text-b);line-height:1.75;margin-top:1rem}
.fi{opacity:0;transform:translateY(16px);transition:opacity .6s,transform .6s}
.fi.visible{opacity:1;transform:translateY(0)}
footer{background:var(--text-d);color:rgba(255,255,255,.3);padding:2.5rem 3rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;z-index:1;position:relative}
.ft{font-family:var(--font-m);font-size:.7rem}
@media(max-width:900px){.hero{grid-template-columns:1fr;padding:7rem 1.2rem 3rem}.hero-bg,.blood-vis{display:none}.band-inner{grid-template-columns:repeat(2,1fr)}nav{padding:0 1.2rem}.nav-links{display:none}.sec{padding:3rem 1.2rem}footer{padding:2rem 1.2rem}}