/*
Theme Name: Niche Fiscale
Description: Thème sur mesure pour niche-fiscale.fr — le guide exhaustif des niches fiscales, millésime 2026. Palette bleu nuit/or, gabarits éditoriaux (réponse rapide, encadrés, FAQ schématisées), breadcrumbs, emplacements publicitaires neutres, maillage automatique.
Version: 1.0
Author: niche-fiscale.fr
Text Domain: niche-fiscale
*/

:root{
  --nuit:#1B2A4A; --nuit2:#243B6B; --or:#C9A227; --or-c:#E7D28F; --or-bg:#FBF6E7;
  --perle:#F4F5F7; --blanc:#FFFFFF;
  --ink:#22293A; --muted:#6A7185; --line:#E3E6EC;
  --vert:#2E7D5B; --vert-bg:#EAF4EF;
  --rouge:#B3452F; --rouge-bg:#FBEFEB;
  --bleu-bg:#EDF1F8;
  --r:14px; --shadow:0 2px 14px rgba(27,42,74,.08);
  --ff-t:'Playfair Display',Georgia,serif;
  --ff-b:'Inter',system-ui,Segoe UI,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--ff-b);font-size:17px;line-height:1.7;color:var(--ink);background:var(--perle)}
img{max-width:100%;height:auto}
a{color:var(--nuit2);text-decoration:underline;text-decoration-color:var(--or-c);text-underline-offset:3px}
a:hover{color:var(--or);text-decoration-color:var(--or)}
h1,h2,h3,h4{font-family:var(--ff-t);color:var(--nuit);line-height:1.25;margin:1.4em 0 .5em}
h1{font-size:clamp(30px,4.4vw,44px)}h2{font-size:clamp(23px,3vw,30px)}h3{font-size:clamp(19px,2.2vw,22px)}
.nf-wrap{max-width:1180px;margin:0 auto;padding:0 22px}
.nf-narrow{max-width:860px;margin:0 auto;padding:0 22px}

/* ===== Header ===== */
.nf-header{background:var(--nuit);color:#fff;position:sticky;top:0;z-index:60;box-shadow:0 2px 10px rgba(0,0,0,.18)}
.nf-header__in{display:flex;align-items:center;gap:26px;min-height:70px}
.nf-logo{display:flex;align-items:center;gap:11px;text-decoration:none}
.nf-logo img{height:42px;width:auto}
.nf-logo b{font-family:var(--ff-t);font-size:21px;color:#fff;letter-spacing:.3px}
.nf-logo b span{color:var(--or)}
.nf-nav{margin-left:auto}
.nf-nav ul{list-style:none;display:flex;gap:4px;margin:0;padding:0;flex-wrap:wrap}
.nf-nav a{display:block;padding:9px 13px;color:#E8ECF4;text-decoration:none;font-size:15px;font-weight:500;border-radius:8px}
.nf-nav a:hover{background:rgba(255,255,255,.1);color:#fff}
.nf-nav .menu-item-cta>a{background:var(--or);color:var(--nuit);font-weight:700}
.nf-nav .menu-item-cta>a:hover{background:var(--or-c)}
.nf-nav .sub-menu{display:none;position:absolute;background:#fff;border-radius:10px;box-shadow:var(--shadow);padding:8px;min-width:250px;z-index:70}
.nf-nav li{position:relative}
.nf-nav li:hover>.sub-menu{display:block}
.nf-nav .sub-menu a{color:var(--ink);font-size:14.5px;border-radius:7px}
.nf-nav .sub-menu a:hover{background:var(--bleu-bg);color:var(--nuit)}
.nf-burger{display:none;margin-left:auto;background:none;border:1px solid rgba(255,255,255,.35);color:#fff;font-size:22px;border-radius:8px;padding:4px 12px;cursor:pointer}
@media(max-width:960px){
  .nf-burger{display:block}
  .nf-nav{display:none;position:absolute;left:0;right:0;top:70px;background:var(--nuit);padding:12px 20px 20px;margin:0}
  .nf-nav.open{display:block}
  .nf-nav ul{flex-direction:column}
  .nf-nav .sub-menu{display:block;position:static;background:transparent;box-shadow:none;padding-left:16px}
  .nf-nav .sub-menu a{color:#C9D2E4}
}

/* ===== Fil d'Ariane ===== */
.nf-crumb{font-size:13.5px;color:var(--muted);padding:14px 0 0}
.nf-crumb a{color:var(--muted);text-decoration:none}
.nf-crumb a:hover{color:var(--or)}
.nf-crumb span.sep{margin:0 7px;color:var(--or)}

/* ===== Hero landing ===== */
.nf-hero{background:linear-gradient(140deg,var(--nuit) 0%,var(--nuit2) 70%,#2E4A85 100%);color:#fff;padding:64px 0 84px;position:relative;overflow:hidden}
.nf-hero::after{content:"";position:absolute;right:-120px;top:-80px;width:430px;height:430px;border-radius:50%;border:56px solid rgba(201,162,39,.14)}
.nf-hero::before{content:"";position:absolute;right:130px;bottom:-140px;width:280px;height:280px;border-radius:50%;border:38px solid rgba(255,255,255,.05)}
.nf-hero h1{color:#fff;margin:0 0 14px;max-width:760px}
.nf-hero h1 em{font-style:normal;color:var(--or)}
.nf-hero p.lead{font-size:19px;color:#D7DEEC;max-width:640px;margin:0 0 26px}
.nf-hero .nf-btn{margin-right:10px}
.nf-stats{display:flex;gap:34px;margin-top:38px;flex-wrap:wrap}
.nf-stats b{display:block;font-family:var(--ff-t);font-size:34px;color:var(--or)}
.nf-stats span{font-size:13.5px;color:#B9C3D8}

/* ===== Boutons ===== */
.nf-btn{display:inline-block;background:var(--or);color:var(--nuit);font-weight:700;padding:13px 26px;border-radius:10px;text-decoration:none;font-size:16px;border:none;cursor:pointer}
.nf-btn:hover{background:var(--or-c);color:var(--nuit)}
.nf-btn--ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.5)}
.nf-btn--ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.nf-btn--nuit{background:var(--nuit);color:#fff}
.nf-btn--nuit:hover{background:var(--nuit2);color:#fff}

/* ===== Sections ===== */
.nf-sec{padding:56px 0}
.nf-sec--alt{background:var(--blanc)}
.nf-sec__head{text-align:center;max-width:680px;margin:0 auto 34px}
.nf-sec__head h2{margin-top:0}
.nf-sec__head p{color:var(--muted)}
.nf-kicker{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:1.6px;text-transform:uppercase;color:var(--or);margin-bottom:8px}

/* ===== Sélecteur de profils ===== */
.nf-profiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(165px,1fr));gap:14px}
.nf-profile{background:#fff;border:1.5px solid var(--line);border-radius:var(--r);padding:20px 16px;text-align:center;text-decoration:none;color:var(--ink);transition:.15s;box-shadow:0 1px 4px rgba(27,42,74,.04)}
.nf-profile:hover{border-color:var(--or);transform:translateY(-3px);box-shadow:var(--shadow);color:var(--ink)}
.nf-profile .ico{font-size:30px;display:block;margin-bottom:8px}
.nf-profile b{display:block;font-size:15.5px;color:var(--nuit)}
.nf-profile span{font-size:12.5px;color:var(--muted)}

/* ===== Cartes silos ===== */
.nf-silos{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.nf-silo{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:26px 24px;border-top:4px solid var(--or);display:flex;flex-direction:column}
.nf-silo .ico{font-size:32px}
.nf-silo h3{margin:.5em 0 .35em}
.nf-silo h3 a{text-decoration:none;color:var(--nuit)}
.nf-silo h3 a:hover{color:var(--or)}
.nf-silo p{font-size:15px;color:var(--muted);margin:0 0 12px}
.nf-silo ul{list-style:none;margin:0 0 14px;padding:0;font-size:14.5px}
.nf-silo ul li{padding:4px 0;border-bottom:1px dashed var(--line)}
.nf-silo ul li:last-child{border-bottom:none}
.nf-silo ul a{text-decoration:none}
.nf-silo .more{margin-top:auto;font-weight:600;font-size:15px;text-decoration:none;color:var(--nuit2)}
.nf-silo .more:hover{color:var(--or)}

/* ===== Grilles d'articles ===== */
.nf-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px}
.nf-card{background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.nf-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.nf-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.nf-card .cat{font-size:11.5px;font-weight:700;letter-spacing:1.1px;text-transform:uppercase;color:var(--or);margin-bottom:6px}
.nf-card h3{font-size:19px;margin:0 0 8px}
.nf-card h3 a{text-decoration:none;color:var(--nuit)}
.nf-card h3 a:hover{color:var(--or)}
.nf-card p{font-size:14.5px;color:var(--muted);margin:0 0 12px;flex:1}
.nf-card .link{font-weight:600;font-size:14.5px;text-decoration:none}

/* ===== Bloc simulateurs ===== */
.nf-simus{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:20px}
.nf-simu{background:linear-gradient(135deg,var(--nuit),var(--nuit2));color:#fff;border-radius:var(--r);padding:28px 26px;position:relative;overflow:hidden}
.nf-simu::after{content:"🧮";position:absolute;right:-8px;bottom:-16px;font-size:96px;opacity:.12}
.nf-simu h3{color:#fff;margin:0 0 8px}
.nf-simu p{color:#C9D2E4;font-size:15px;margin:0 0 18px}
.nf-simu .nf-btn{font-size:15px;padding:11px 20px}

/* ===== Contenu éditorial ===== */
.nf-prose{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:clamp(24px,4vw,46px)}
.nf-prose>*:first-child{margin-top:0}
.nf-prose p{margin:.9em 0}
.nf-prose h2{padding-bottom:8px;border-bottom:3px solid var(--or-c)}
.nf-prose table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;background:#fff}
.nf-prose th{background:var(--nuit);color:#fff;text-align:left;padding:10px 13px;font-family:var(--ff-b);font-size:13.5px}
.nf-prose td{padding:9px 13px;border-bottom:1px solid var(--line);vertical-align:top}
.nf-prose tr:nth-child(even) td{background:#FAFBFD}
.nf-prose ul,.nf-prose ol{padding-left:26px}
.nf-prose li{margin:6px 0}
.nf-prose blockquote{border-left:4px solid var(--or);margin:18px 0;padding:6px 20px;color:var(--muted);font-style:italic}

/* Encadrés éditoriaux */
.nf-ex,.nf-law,.nf-warn,.nf-maj{border-radius:0 12px 12px 0;padding:16px 20px;margin:22px 0;font-size:15.5px}
.nf-ex{background:var(--vert-bg);border-left:5px solid var(--vert)}
.nf-law{background:var(--bleu-bg);border-left:5px solid var(--nuit2)}
.nf-warn{background:var(--rouge-bg);border-left:5px solid var(--rouge)}
.nf-maj{background:var(--or-bg);border-left:5px solid var(--or);font-size:14px;display:flex;gap:10px;align-items:baseline}
.nf-maj b{color:var(--nuit)}

/* FAQ */
.nf-faq{margin:20px 0}
.nf-faq__item{background:#fff;border:1.5px solid var(--line);border-radius:12px;margin:10px 0;overflow:hidden}
.nf-faq__item summary{cursor:pointer;padding:15px 20px;font-weight:600;color:var(--nuit);list-style:none;position:relative;padding-right:44px}
.nf-faq__item summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:24px;color:var(--or);font-weight:400}
.nf-faq__item[open] summary::after{content:"–"}
.nf-faq__item summary::-webkit-details-marker{display:none}
.nf-faq__a{padding:0 20px 16px;color:#3A4152;font-size:15.5px}
.nf-faq__a p{margin:.4em 0}

/* ===== Layout article + sidebar ===== */
.nf-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:30px;align-items:start;padding:26px 0 60px}
@media(max-width:1020px){.nf-layout{grid-template-columns:1fr}}
.nf-side{position:sticky;top:92px;display:flex;flex-direction:column;gap:20px}
.nf-widget{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:20px 22px}
.nf-widget h4{margin:0 0 12px;font-size:16.5px;border-bottom:2px solid var(--or-c);padding-bottom:8px}
.nf-widget ul{list-style:none;margin:0;padding:0;font-size:14.5px}
.nf-widget li{padding:7px 0;border-bottom:1px dashed var(--line)}
.nf-widget li:last-child{border-bottom:none}
.nf-widget a{text-decoration:none}
.nf-widget--simu{background:linear-gradient(135deg,var(--nuit),var(--nuit2));color:#fff}
.nf-widget--simu h4{color:#fff;border-color:rgba(201,162,39,.5)}
.nf-widget--simu p{font-size:14px;color:#C9D2E4;margin:0 0 14px}

/* Meta d'article */
.nf-meta{display:flex;gap:14px;align-items:center;font-size:13.5px;color:var(--muted);margin:10px 0 20px;flex-wrap:wrap}
.nf-meta .cat{background:var(--bleu-bg);color:var(--nuit2);font-weight:600;padding:3px 12px;border-radius:20px;text-decoration:none;font-size:12.5px}
.nf-meta .cat:hover{background:var(--or-bg);color:var(--or)}

/* Dans ce dossier */
.nf-children{background:var(--bleu-bg);border-radius:var(--r);padding:22px 24px;margin:26px 0}
.nf-children h3{margin:0 0 12px;font-size:18px}
.nf-children ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:8px}
.nf-children a{display:block;background:#fff;border-radius:9px;padding:10px 14px;text-decoration:none;font-size:14.5px;font-weight:500;box-shadow:0 1px 3px rgba(27,42,74,.06)}
.nf-children a:hover{box-shadow:var(--shadow)}

/* Liens connexes bas d'article */
.nf-related{margin:34px 0 0;padding-top:22px;border-top:1.5px solid var(--line)}
.nf-related h3{margin-top:0}

/* ===== Emplacements pub ===== */
.nf-ad{margin:22px auto;text-align:center;overflow:hidden}
.nf-ad--header{max-width:1180px;padding:0 22px}
.nf-ad__label{display:block;font-size:10px;letter-spacing:1.4px;text-transform:uppercase;color:#A6ACB9;margin-bottom:4px}

/* ===== Pagination / filtres blog ===== */
.nf-filters{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin:0 0 30px}
.nf-filters a{background:#fff;border:1.5px solid var(--line);color:var(--ink);padding:7px 16px;border-radius:22px;font-size:14px;text-decoration:none;font-weight:500}
.nf-filters a:hover,.nf-filters a.on{background:var(--nuit);border-color:var(--nuit);color:#fff}
.nf-pagination{display:flex;gap:6px;justify-content:center;margin:36px 0 0}
.nf-pagination .page-numbers{background:#fff;border:1.5px solid var(--line);color:var(--ink);min-width:40px;text-align:center;padding:8px 12px;border-radius:9px;text-decoration:none;font-size:14.5px}
.nf-pagination .page-numbers.current,.nf-pagination .page-numbers:hover{background:var(--nuit);border-color:var(--nuit);color:#fff}

/* ===== Simulateurs (gabarit outil) ===== */
.nf-tool{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:clamp(22px,3.6vw,38px);margin:22px 0}
.nf-tool label{display:block;font-weight:600;font-size:14.5px;margin:14px 0 5px;color:var(--nuit)}
.nf-tool input[type=number],.nf-tool select{width:100%;max-width:340px;padding:11px 13px;border:1.5px solid var(--line);border-radius:9px;font-size:16px;font-family:var(--ff-b)}
.nf-tool input:focus,.nf-tool select:focus{outline:none;border-color:var(--or)}
.nf-tool .res{background:var(--or-bg);border:1.5px solid var(--or-c);border-radius:12px;padding:18px 22px;margin-top:20px;font-size:16px}
.nf-tool .res b.big{font-family:var(--ff-t);font-size:30px;color:var(--nuit);display:block}
.nf-tool .res .ok{color:var(--vert);font-weight:700}
.nf-tool .res .ko{color:var(--rouge);font-weight:700}

/* ===== Footer ===== */
.nf-footer{background:var(--nuit);color:#B9C3D8;margin-top:70px;padding:48px 0 26px;font-size:14.5px}
.nf-footer a{color:#D7DEEC;text-decoration:none}
.nf-footer a:hover{color:var(--or)}
.nf-footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px}
@media(max-width:820px){.nf-footer__grid{grid-template-columns:1fr}}
.nf-footer h4{color:#fff;font-size:16px;margin:0 0 12px}
.nf-footer ul{list-style:none;margin:0;padding:0}
.nf-footer li{padding:4px 0}
.nf-footer__legal{border-top:1px solid rgba(255,255,255,.14);margin-top:34px;padding-top:20px;font-size:13px;color:#8D97AD}
.nf-footer__legal p{margin:6px 0}
.nf-disclaimer{background:rgba(201,162,39,.1);border:1px solid rgba(201,162,39,.3);border-radius:10px;padding:12px 16px;font-size:12.5px;margin:18px 0 0;color:#C9CFDD}

/* 404 & divers */
.nf-404{text-align:center;padding:90px 20px}
.nf-404 h1{font-size:76px;margin:0;color:var(--or)}
.screen-reader-text{position:absolute;clip:rect(1px,1px,1px,1px);width:1px;height:1px;overflow:hidden}