/* FinanceParMatteo, le blog : DA de la boutique (dégradé violet → cyan du logo) */
:root{
  --ink:#1E1236; --ink-soft:#4B4060; --bg:#F6F5F9; --card:#FFFFFF; --line:#E6E2EF;
  --night:#160B2E; --violet:#9A1BCB; --deep:#5A138F; --blue:#2E6ED4; --cyan:#06D2EE;
  --grad:linear-gradient(90deg,#5A138F 0%,#9A1BCB 32%,#2E6ED4 64%,#06D2EE 100%);
  --red:#D7263D; --green:#16A36F;
  --x-dark:#1F3A44; --x-teal:#2A9D8F; --x-sec:#F1EDE6; --x-in:#FFF6D9;
  --radius:18px; --wrap:1120px; --read:720px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,'Segoe UI',Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;font-size:18px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--blue)}
h1,h2,h3,.brand-name,.btn,.kicker{font-family:'Poppins',system-ui,Arial,sans-serif}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.gtext{background:linear-gradient(90deg,#B44DE8,#5FA8FF 55%,#06D2EE);-webkit-background-clip:text;background-clip:text;color:transparent}

/* En-tête */
.site-header{position:sticky;top:0;z-index:20;background:rgba(246,245,249,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand img{height:34px;width:auto}
.brand-name{font-weight:600;font-size:17px}
.nav{display:flex;align-items:center;gap:26px}
.nav a{color:var(--ink-soft);text-decoration:none;font-weight:500;font-size:16px}
.nav a:hover{color:var(--ink)}
.btn{display:inline-block;background:var(--grad);color:#fff!important;text-decoration:none;font-weight:600;border-radius:999px;padding:12px 24px;font-size:16px;box-shadow:0 10px 26px rgba(90,19,143,.28);transition:transform .15s ease,box-shadow .15s ease}
.btn:hover{transform:translateY(-1px);box-shadow:0 14px 32px rgba(90,19,143,.36)}
.btn.ghost{background:transparent;color:#fff!important;border:2px solid rgba(255,255,255,.55);box-shadow:none}
@media (max-width:720px){.nav a:not(.btn){display:none}.brand-name{display:none}}

/* Bandeau sombre, comme les vidéos */
.hero{position:relative;overflow:hidden;color:#fff;background:
  radial-gradient(700px 500px at 0% 0%,rgba(154,27,203,.42),transparent 60%),
  radial-gradient(700px 600px at 100% 100%,rgba(6,210,238,.28),transparent 60%),
  linear-gradient(180deg,#1A0D35,#120827)}
.hero .wrap{padding-top:88px;padding-bottom:96px}
.hero h1{font-weight:700;font-style:italic;font-size:clamp(38px,6vw,68px);line-height:1.06;letter-spacing:-1px;max-width:860px}
.hero p.lead{font-size:clamp(18px,2.2vw,22px);opacity:.88;max-width:640px;margin-top:22px}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.kicker{display:inline-block;background:var(--grad);color:#fff;border-radius:999px;padding:6px 16px;font-weight:600;font-size:14px;margin-bottom:22px}

/* Liste d'articles */
.section{padding:72px 0}
.section h2.title{font-size:clamp(28px,3.4vw,38px);font-weight:700;letter-spacing:-.5px;margin-bottom:28px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;text-decoration:none;color:var(--ink);display:flex;flex-direction:column;transition:transform .15s ease,box-shadow .15s ease}
.card:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(30,18,54,.12)}
.card .thumb{height:170px;background:linear-gradient(135deg,#1A0D35,#2A1260);position:relative;display:flex;align-items:flex-end;padding:20px}
.card .thumb::after{content:"";position:absolute;inset:0;background:radial-gradient(260px 180px at 90% 100%,rgba(6,210,238,.35),transparent 70%),radial-gradient(260px 180px at 0% 0%,rgba(154,27,203,.45),transparent 70%)}
.card .thumb span{position:relative;z-index:1;color:#fff;font-family:'Poppins',sans-serif;font-weight:700;font-style:italic;font-size:44px;line-height:1}
.card .body{padding:22px 22px 26px}
.card .tag{font-size:13px;font-weight:600;color:var(--violet);text-transform:none}
.card h3{font-size:21px;line-height:1.3;margin:8px 0 10px}
.card p{font-size:16px;color:var(--ink-soft);line-height:1.55}
.soon{border-style:dashed;opacity:.75}

/* Bloc boutique */
.shop{background:var(--card);border:1px solid var(--line);border-radius:28px;padding:48px;display:grid;grid-template-columns:1.2fr 1fr;gap:36px;align-items:center}
.shop h2{font-size:clamp(26px,3vw,34px);line-height:1.2;margin-bottom:14px}
.shop p{color:var(--ink-soft)}
.shop ul{list-style:none;margin:22px 0 28px}
.shop li{padding-left:30px;position:relative;margin-bottom:10px}
.shop li::before{content:"";position:absolute;left:0;top:9px;width:16px;height:16px;border-radius:5px;background:var(--grad)}
.shop .logo-box{background:#ECECEC;border-radius:22px;padding:48px 32px;display:flex;align-items:center;justify-content:center}
@media (max-width:820px){.shop{grid-template-columns:1fr;padding:32px}}

/* Article */
.article-hero .wrap{max-width:calc(var(--read) + 48px);padding-top:72px;padding-bottom:80px}
.article-hero h1{font-size:clamp(34px,5vw,54px)}
.meta{margin-top:24px;font-size:15px;opacity:.75}
.crumbs{font-size:14px;opacity:.7;margin-bottom:20px}
.crumbs a{color:#fff}
.prose{max-width:var(--read);margin:0 auto;padding:56px 24px 24px}
.prose p{margin-bottom:1.15em}
.prose h2{font-size:clamp(26px,3vw,32px);line-height:1.25;margin:1.8em 0 .6em;letter-spacing:-.3px}
.prose h3{font-size:22px;margin:1.5em 0 .5em}
.prose ul,.prose ol{margin:0 0 1.2em 1.3em}
.prose li{margin-bottom:.45em}
.prose strong{color:var(--ink)}
.prose .intro{font-size:21px;line-height:1.6;color:var(--ink)}
.toc{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px 28px;margin:8px 0 34px}
.toc p{font-family:'Poppins',sans-serif;font-weight:600;margin-bottom:8px}
.toc ol{margin-bottom:0}
.toc a{text-decoration:none}

.callout{border-radius:var(--radius);padding:24px 26px;margin:28px 0;background:#fff;border:1px solid var(--line);border-left:6px solid var(--blue)}
.callout.bad{border-left-color:var(--red);background:#FFF5F6}
.callout.good{border-left-color:var(--green);background:#F2FBF7}
.callout p:last-child{margin-bottom:0}
.formula{font-family:'Poppins',sans-serif;font-weight:600;font-size:clamp(17px,2.2vw,21px);background:var(--night);color:#fff;border-radius:var(--radius);padding:24px 26px;margin:24px 0;text-align:center;line-height:1.5}
.formula span{background:linear-gradient(90deg,#D08BFF,#5FA8FF 50%,#06D2EE);-webkit-background-clip:text;background-clip:text;color:transparent}

/* Mini tableur, comme dans les vidéos */
.sheet{margin:30px 0;border-radius:16px;overflow:hidden;box-shadow:0 18px 44px rgba(30,18,54,.16);border:1px solid #d9d9d9;font-family:Arial,'Liberation Sans',sans-serif;font-size:16px;background:#fff}
.sheet .bar{background:var(--x-dark);color:#fff;padding:10px 16px;display:flex;align-items:center;gap:8px;font-size:14px}
.sheet .bar i{width:11px;height:11px;border-radius:50%;display:inline-block}
.sheet .scroll{overflow-x:auto}
.sheet table{width:100%;border-collapse:collapse}
.sheet td{padding:11px 14px;border-bottom:1px solid #ececec}
.sheet td:last-child{text-align:right;font-weight:700;white-space:nowrap;width:1%}
@media (max-width:560px){.sheet{font-size:15px}.sheet td{padding:10px 10px}}
.sheet tr.sec td{background:var(--x-sec);color:var(--x-dark);font-weight:700;text-align:left}
.sheet td.in{background:var(--x-in)}
.sheet tr.tot td{background:var(--x-dark);color:#fff}
.sheet tr.key td{background:var(--x-teal);color:#fff}
.sheet tr.loss td:last-child{background:var(--red);color:#fff}
.sheet figcaption{font-size:14px;color:#666;padding:10px 16px;background:#fafafa;border-top:1px solid #eee}

/* Encadré produit */
.product{display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:center;margin:36px 0;padding:26px;border-radius:22px;color:#fff;background:
  radial-gradient(360px 220px at 100% 100%,rgba(6,210,238,.3),transparent 70%),
  radial-gradient(360px 220px at 0% 0%,rgba(154,27,203,.45),transparent 70%),#1A0D35}
.product .ico{width:74px;height:74px;border-radius:20px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-family:'Poppins',sans-serif;font-weight:700;font-style:italic;font-size:30px}
.product h3{margin:0 0 6px;font-size:21px;color:#fff}
.product p{margin:0 0 14px;opacity:.88;font-size:16px;line-height:1.55}
@media (max-width:560px){.product{grid-template-columns:1fr}}

.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:600;font-family:'Poppins',sans-serif}
.faq details p{margin:12px 0 0}
.author{display:flex;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin:40px 0}
.author .av{flex:none;width:64px;height:64px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-family:'Poppins',sans-serif;font-weight:700;font-size:24px}
.author p{margin:0;font-size:16px;color:var(--ink-soft)}
.author strong{display:block;font-family:'Poppins',sans-serif;color:var(--ink);font-size:17px}

/* Pied de page */
.site-footer{background:var(--night);color:rgba(255,255,255,.75);padding:48px 0;margin-top:72px;font-size:15px}
.site-footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:center}
.site-footer a{color:#fff;text-decoration:none;margin-left:18px}
.site-footer a:first-child{margin-left:0}
.legal{max-width:var(--read);margin:0 auto;padding:56px 24px}
.legal h1{font-size:36px;margin-bottom:24px}
.legal h2{font-size:22px;margin:28px 0 8px}

/* --- Catalogue, cartes produits, maillage --- */
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px;margin:22px 0 10px}
.pcard{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px 20px 18px;display:flex;flex-direction:column;gap:8px;text-decoration:none;color:var(--ink);transition:transform .15s ease,box-shadow .15s ease}
.pcard:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(30,18,54,.10)}
.pcard .pt{font-family:'Poppins',sans-serif;font-weight:600;font-size:17px;line-height:1.3}
.pcard .pd{font-size:15px;color:var(--ink-soft);line-height:1.5;flex:1}
.pcard .pl{font-size:14px;font-weight:600;color:var(--blue)}
.pcard .badge{align-self:flex-start;font-size:12px;font-weight:600;color:#fff;background:var(--grad);border-radius:999px;padding:3px 10px}
.prose .pgrid{margin-top:14px}
.prose .pcard p{margin:0}
.cat-section{padding-top:40px}
.cat-section h2{font-size:clamp(24px,3vw,30px);margin-bottom:6px}
.cat-section>p{color:var(--ink-soft);max-width:720px}
.chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}
.chip{display:inline-flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:10px 18px;text-decoration:none;color:var(--ink);font-weight:500;font-size:16px}
.chip:hover{border-color:var(--violet);color:var(--violet)}
.related{margin:44px 0 0}
.related h2{margin-top:0}
.related ul{list-style:none;margin:0}
.related li{margin:0 0 10px}
.related a{font-weight:600;text-decoration:none}
.site-footer .social a{margin-left:18px}
.disclaimer{font-size:14px;color:var(--ink-soft);border-top:1px solid var(--line);padding-top:18px;margin-top:36px}
.prose table.simple{width:100%;border-collapse:collapse;margin:20px 0;font-size:16px}
.prose table.simple th,.prose table.simple td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left}
.prose table.simple th{font-family:'Poppins',sans-serif;font-size:15px}
.tablewrap{overflow-x:auto}