/* ============================================================
   spam-update.com · feuille de style partagée (guides + pages)
   La landing (index.html) garde son CSS inline.
   ============================================================ */
:root{
  --bg:#05060a; --bg-2:#0a0c14;
  --panel:rgba(255,255,255,.035);
  --panel-brd:rgba(255,255,255,.09);
  --txt:#eef1f7; --txt-dim:#98a1b3; --txt-faint:#6b7488;
  --cyan:#3ef2d0; --violet:#8b6cff; --red:#ff4d6a; --amber:#ffb340;
  --ring:0 0 0 1px rgba(255,255,255,.07);
  --max:1140px; --read:720px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);color:var(--txt);
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  font-size:17px;line-height:1.7;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:'Space Grotesk','Inter',sans-serif;line-height:1.15;letter-spacing:-.02em;text-wrap:balance}
/* evite les mots orphelins en fin de paragraphe */
p,li,td,th,summary{text-wrap:pretty}
.card p,.author p,.crumb,.art-meta{text-wrap:balance}
.mono{font-family:'JetBrains Mono',ui-monospace,monospace}
a{color:inherit}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.read{max-width:var(--read);margin:0 auto}

/* ---------- FOND ---------- */
.bg-fx{position:fixed;inset:0;z-index:-2;pointer-events:none;overflow:hidden}
.bg-fx .grid{
  position:absolute;inset:-50% -50%;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:54px 54px;
  transform:perspective(600px) rotateX(58deg) translateY(-12%);
  mask-image:radial-gradient(ellipse 60% 50% at 50% 14%,#000 20%,transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse 60% 50% at 50% 14%,#000 20%,transparent 72%);
}
.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.3}
.orb.a{width:600px;height:600px;background:radial-gradient(circle,#8b6cff,transparent 65%);top:-240px;left:-180px}
.orb.b{width:520px;height:520px;background:radial-gradient(circle,#3ef2d0,transparent 65%);top:220px;right:-220px;opacity:.2}
.noise{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E")}

/* ---------- LOGO / NAV ---------- */
header.nav{position:sticky;top:0;z-index:60;backdrop-filter:blur(14px);background:rgba(5,6,10,.72);border-bottom:1px solid var(--panel-brd)}
.nav-in{display:flex;align-items:center;gap:18px;height:66px}
.logo{display:inline-flex;align-items:center;gap:11px;text-decoration:none;line-height:1}
.logo-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 auto;display:block;
  background:linear-gradient(155deg,#151b2e,#080b14 70%);
  box-shadow:0 0 0 1px rgba(255,255,255,.1),0 6px 22px -8px rgba(62,242,208,.55),inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s;
}
.logo:hover .logo-mark{transform:translateY(-1px) rotate(-3deg);box-shadow:0 0 0 1px rgba(62,242,208,.35),0 10px 30px -8px rgba(62,242,208,.8)}
.logo-txt{font-family:'Space Grotesk';font-weight:700;font-size:19px;letter-spacing:-.045em;color:var(--txt);display:flex;align-items:baseline}
.logo-txt .u{background:linear-gradient(100deg,var(--cyan) 10%,var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
.logo-txt .d{color:var(--txt-faint);opacity:.55;padding:0 1px}
.logo-txt .tld{font-size:12.5px;font-weight:500;letter-spacing:0;color:var(--txt-faint);margin-left:2px;transform:translateY(-1px)}
.nav-links{display:flex;gap:24px;margin-left:auto;font-size:14.5px;color:var(--txt-dim)}
.nav-links a{text-decoration:none;transition:color .2s}
.nav-links a:hover,.nav-links a[aria-current]{color:var(--txt)}
@media(max-width:880px){.nav-links{display:none}}
@media(max-width:480px){.logo-txt{font-size:17px}.logo-mark{width:32px;height:32px;border-radius:10px}}

/* ---------- BOUTONS ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;justify-content:center;padding:14px 26px;border-radius:13px;
  font-weight:600;font-size:15.5px;text-decoration:none;border:0;cursor:pointer;
  font-family:'Space Grotesk';letter-spacing:-.01em;
  transition:transform .18s ease,box-shadow .25s ease}
.btn-primary{color:#04100d;background:linear-gradient(105deg,var(--cyan),#7ef7c0 45%,var(--violet) 130%);
  box-shadow:0 10px 34px -10px rgba(62,242,208,.55),inset 0 1px 0 rgba(255,255,255,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 44px -10px rgba(62,242,208,.7)}
.btn-ghost{color:var(--txt);background:var(--panel);box-shadow:var(--ring)}
.btn-ghost:hover{background:rgba(255,255,255,.07)}
.btn-sm{padding:11px 19px;font-size:14px;border-radius:11px}

/* ---------- FIL D'ARIANE + EN-TÊTE D'ARTICLE ---------- */
.crumb{font-size:13.5px;color:var(--txt-faint);padding-top:38px;margin-bottom:22px;display:flex;gap:9px;flex-wrap:wrap}
.crumb a{text-decoration:none;color:var(--txt-dim)}
.crumb a:hover{color:var(--cyan)}
.eyebrow{font-family:'JetBrains Mono';font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);margin-bottom:16px;display:block;opacity:.9}
.art-head h1{font-size:clamp(2rem,4.6vw,3.2rem);font-weight:700;margin-bottom:20px}
.art-meta{display:flex;gap:16px;flex-wrap:wrap;align-items:center;font-size:13.5px;color:var(--txt-faint);
  padding-bottom:30px;margin-bottom:38px;border-bottom:1px solid var(--panel-brd)}
.art-meta a{color:var(--txt-dim)}
.chapo{font-size:1.16rem;color:var(--txt-dim);margin-bottom:30px;line-height:1.65}

/* ---------- CORPS D'ARTICLE ---------- */
article h2{font-size:clamp(1.5rem,3vw,2.1rem);margin:56px 0 18px;font-weight:700}
article h3{font-size:1.18rem;margin:34px 0 12px;font-weight:600}
article p{margin-bottom:20px;color:var(--txt-dim)}
article p strong,article li strong{color:var(--txt);font-weight:600}
article a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
article a:hover{color:#8ef8de}
article ul,article ol{margin:0 0 22px 0;padding-left:22px;color:var(--txt-dim)}
article li{margin-bottom:10px}
article ul{list-style:none;padding-left:0}
article ul li{position:relative;padding-left:22px}
article ul li::before{content:"";position:absolute;left:4px;top:11px;width:6px;height:6px;border-radius:2px;background:var(--cyan);opacity:.75}
article ol{counter-reset:o;list-style:none;padding-left:0}
article ol li{position:relative;padding-left:38px;counter-increment:o}
article ol li::before{content:counter(o);position:absolute;left:0;top:2px;width:26px;height:26px;border-radius:9px;
  background:rgba(62,242,208,.1);box-shadow:inset 0 0 0 1px rgba(62,242,208,.25);color:var(--cyan);
  font-family:'JetBrains Mono';font-size:12.5px;font-weight:600;display:grid;place-items:center}
article hr{border:0;border-top:1px solid var(--panel-brd);margin:48px 0}

/* ---------- ENCADRÉS ---------- */
.box{border-radius:18px;padding:24px 26px;margin:32px 0;background:rgba(255,255,255,.03);box-shadow:var(--ring)}
.box h4{font-size:13px;letter-spacing:.14em;text-transform:uppercase;font-family:'JetBrains Mono';margin-bottom:14px;color:var(--cyan)}
.box p:last-child,.box ul:last-child,.box ol:last-child{margin-bottom:0}
.box.warn{background:linear-gradient(140deg,rgba(255,77,106,.08),transparent);box-shadow:inset 0 0 0 1px rgba(255,77,106,.22)}
.box.warn h4{color:var(--red)}
.box.tip{background:linear-gradient(140deg,rgba(255,179,64,.08),transparent);box-shadow:inset 0 0 0 1px rgba(255,179,64,.2)}
.box.tip h4{color:var(--amber)}

/* ---------- TABLEAU ---------- */
.tbl-wrap{overflow-x:auto;margin:30px 0;border-radius:16px;box-shadow:var(--ring)}
table{width:100%;border-collapse:collapse;font-size:14.8px;min-width:520px}
th{text-align:left;padding:14px 16px;background:rgba(255,255,255,.045);font-family:'Space Grotesk';font-weight:600;
  font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:var(--txt-dim);white-space:nowrap}
td{padding:14px 16px;border-top:1px solid var(--panel-brd);color:var(--txt-dim);vertical-align:top}
td:first-child{color:var(--txt);font-weight:600;white-space:nowrap}
tr:hover td{background:rgba(255,255,255,.018)}

/* ---------- SOMMAIRE ---------- */
.toc{border-radius:18px;padding:22px 26px;margin:0 0 44px;background:rgba(255,255,255,.028);box-shadow:var(--ring)}
.toc h4{font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;font-family:'JetBrains Mono';color:var(--txt-faint);margin-bottom:14px}
.toc ol{counter-reset:t;list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:9px}
.toc li{padding-left:0;margin:0;counter-increment:t}
.toc li::before{display:none}
.toc a{color:var(--txt-dim);text-decoration:none;font-size:15px;display:flex;gap:11px}
.toc a::before{content:counter(t,decimal-leading-zero);font-family:'JetBrains Mono';font-size:12.5px;color:var(--cyan);opacity:.8;padding-top:2px}
.toc a:hover{color:var(--txt)}

/* ---------- ENCART PRODUIT (affiliation) ---------- */
.promo{border-radius:20px;padding:28px;margin:48px 0;position:relative;overflow:hidden;
  background:linear-gradient(150deg,rgba(62,242,208,.08),rgba(139,108,255,.07) 60%,rgba(255,255,255,.02));
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.11)}
.promo .tag{font-family:'JetBrains Mono';font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--txt-faint);display:block;margin-bottom:12px}
.promo h3{font-size:1.3rem;margin:0 0 10px}
.promo p{color:var(--txt-dim);font-size:15.5px;margin-bottom:20px}
.promo .fine{font-size:12.5px;color:var(--txt-faint);margin:14px 0 0}

/* ---------- CARTES / GRILLE ---------- */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:860px){.grid2,.grid3{grid-template-columns:1fr}}
.card{position:relative;border-radius:18px;padding:24px;text-decoration:none;display:block;
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
  box-shadow:var(--ring);transition:transform .3s cubic-bezier(.2,.8,.2,1),box-shadow .3s}
.card:hover{transform:translateY(-4px);box-shadow:var(--ring),0 24px 60px -34px #000}
.card h3{font-size:1.1rem;margin:0 0 8px}
.card p{color:var(--txt-dim);font-size:14.8px;margin:0}
.card .kicker{font-family:'JetBrains Mono';font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);display:block;margin-bottom:11px;opacity:.85}

/* ---------- SOURCES ---------- */
.sources{margin-top:56px;padding-top:30px;border-top:1px solid var(--panel-brd);font-size:14.5px}
.sources h4{font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;font-family:'JetBrains Mono';color:var(--txt-faint);margin-bottom:16px}
.sources ul{padding-left:0}
.sources li{padding-left:18px;color:var(--txt-faint);font-size:14px}
.sources li::before{top:10px;background:var(--txt-faint);opacity:.5}
.sources a{color:var(--txt-dim)}

/* ---------- SUITE / FOOTER ---------- */
.next{margin-top:64px}
.next h2{font-size:1.5rem;margin:0 0 20px}
footer{border-top:1px solid var(--panel-brd);padding:52px 0 70px;margin-top:90px;font-size:14px;color:var(--txt-faint)}
.foot-top{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:center;margin-bottom:28px}
.foot-top nav{display:flex;gap:20px;flex-wrap:wrap}
.foot-top nav a{text-decoration:none}
.foot-top nav a:hover{color:var(--txt-dim)}
.disclose{border-radius:14px;padding:18px 20px;background:rgba(255,255,255,.025);box-shadow:var(--ring);line-height:1.6}
.disclose b{color:var(--txt-dim)}

@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ---------- BLOC AUTEUR ---------- */
.author{display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin:48px 0 0;padding:24px;
  border-radius:20px;background:rgba(255,255,255,.028);box-shadow:var(--ring)}
.author-pic{width:72px;height:72px;border-radius:22px;flex:0 0 auto;position:relative;overflow:hidden;
  background:linear-gradient(140deg,var(--violet),var(--cyan));display:grid;place-items:center;
  font-family:'Space Grotesk';font-weight:700;font-size:23px;color:#06100d;letter-spacing:-.03em;
  box-shadow:0 0 0 1px rgba(255,255,255,.12),0 10px 30px -14px rgba(62,242,208,.8)}
.author-pic img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 42%;display:block}
.author h3{margin:0 0 6px;font-size:1.12rem}
.author p{margin:0;font-size:14.6px;color:var(--txt-dim);line-height:1.6}
.author .kicker{font-family:'JetBrains Mono';font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--txt-faint);display:block;margin-bottom:7px}

/* ---------- CORRECTIFS MOBILE : bouton du header ---------- */
.btn{white-space:nowrap}
.nav-in .btn{flex:0 0 auto}
.btn-short{display:none}
@media(max-width:760px){
  /* le libelle court evite le passage sur deux lignes */
  .btn-long{display:none}
  .btn-short{display:inline}
  .nav-in .btn-sm{padding:10px 15px;font-size:13.5px}
  .nav-in{gap:12px}
  /* l'animation de brillance provoquait un scintillement au scroll */
  .btn-primary{animation:none;background-position:0 0}
  /* le flou du header est couteux pendant le scroll : fond opaque a la place */
  header.nav{backdrop-filter:none;background:rgba(5,6,10,.97)}
}
@media(max-width:380px){
  .nav-in .btn-sm{padding:9px 12px;font-size:13px}
}

/* ---------- MENU MOBILE ---------- */
.nav-burger{display:none;width:42px;height:42px;border-radius:12px;flex:0 0 auto;border:0;cursor:pointer;
  background:var(--panel);box-shadow:var(--ring);place-items:center;padding:0;color:var(--txt);
  transition:background .2s}
.nav-burger:hover{background:rgba(255,255,255,.08)}
.nav-burger span,.nav-burger span::before,.nav-burger span::after{
  display:block;width:18px;height:2px;border-radius:2px;background:currentColor;transition:transform .25s ease,opacity .2s ease}
.nav-burger span{position:relative}
.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0}
.nav-burger span::before{top:-6px}
.nav-burger span::after{top:6px}
header.nav.open .nav-burger span{background:transparent}
header.nav.open .nav-burger span::before{transform:translateY(6px) rotate(45deg)}
header.nav.open .nav-burger span::after{transform:translateY(-6px) rotate(-45deg)}

@media(max-width:880px){
  .nav-burger{display:grid}
  .nav-in .btn{margin-left:auto}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;gap:0;margin:0;padding:6px 20px 18px;
    background:rgba(8,10,18,.99);border-bottom:1px solid var(--panel-brd);
    box-shadow:0 24px 50px -24px #000;
  }
  header.nav.open .nav-links{display:flex;animation:navdrop .22s ease}
  @keyframes navdrop{from{opacity:0;transform:translateY(-8px)}}
  .nav-links a{padding:14px 2px;font-size:16px;color:var(--txt-dim);
    border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-links a:last-child{border-bottom:0}
  .nav-links a[aria-current]{color:var(--cyan)}
}
@media(max-width:420px){
  .nav-in{gap:10px}
  .nav-burger{width:38px;height:38px;border-radius:11px}
}