/* fj-shell.css , global shell ported from contadordeprazo (header/micro-header/
   dropdowns/search/theme/footer/tool-cards/breadcrumb). Same visual language,
   same tokens; dark mode via body.dark-mode. Compat aliases (--c-*) keep the
   existing inner-page stylesheets (article/search/landing) working. */

/* Reset global de box-sizing (estava FALTANDO): sem isto, width:100%+padding
   estoura o container e o overflow-x:clip corta itens a direita (ex: header). */
*,*::before,*::after{box-sizing:border-box}

:root{
  --primary-color:#0071e3;--secondary-color:#6e6e73;--light-bg:#faf8f4;--content-bg:#ffffff;
  --text-color:#1d1d1f;--text-color-light:#f5f5f7;--border-color:#d2d2d7;--success-color:#34c759;
  --warning-color:#ffcc00;--danger-color:#ff3b30;--hover-color:#005bb5;--zebra-stripe-color:#f9f9f9;
  --font-family-base:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,'Open Sans','Helvetica Neue',sans-serif;
  --white-color:#FFFFFF;
  --header-inline-pad-left:clamp(16px,2vw,24px);--header-inline-pad-right:clamp(16px,2vw,24px);
  /* compat aliases for existing page CSS (article/search/landing/home variants) */
  --c-bg:var(--light-bg);--c-surface:var(--content-bg);--c-surface-2:#eef1f5;
  --c-text:var(--text-color);--c-text-soft:#475569;--c-muted:var(--secondary-color);
  --c-border:#e2e8f0;--c-accent:var(--primary-color);--c-accent-strong:var(--hover-color);
  --c-on-accent:#ffffff;--font-sans:var(--font-family-base);
  /* "serif" alias REAPONTADO para a stack Apple (decreto: zero serifa no site) */
  --font-serif:-apple-system,BlinkMacSystemFont,"Segoe UI Variable Display","Segoe UI",Inter,Roboto,sans-serif;
  --maxw:1120px;--maxw-prose:760px;--radius:14px;--radius-sm:10px;
  --shadow:0 1px 2px rgba(15,23,42,.04),0 8px 24px rgba(15,23,42,.06);--space:clamp(16px,4vw,24px)
}
body.dark-mode{
  --primary-color:#0a84ff;--secondary-color:#8e8e93;--light-bg:#000000;--content-bg:#1c1c1e;
  --text-color:#f5f5f7;--border-color:#3a3a3c;--hover-color:#0b63f6;--zebra-stripe-color:#2c2c2e;
  --c-bg:#0f172a;--c-surface:#1c1c1e;--c-surface-2:#2c2c2e;--c-text:#f5f5f7;--c-text-soft:#cbd5e1;
  --c-muted:#94a3b8;--c-border:#3a3a3c;--c-accent:#60a5fa;--c-accent-strong:#93c5fd;--c-on-accent:#0b1120
}

html{scroll-behavior:smooth;overflow-x:clip}
body{font-family:var(--font-family-base);line-height:1.6;margin:0;padding:0;background-color:var(--light-bg);color:var(--text-color);font-size:16px;transition:background-color .3s,color .3s}
img{max-width:100%}
a{color:var(--primary-color)}
.container{max-width:1000px;margin:20px auto;padding:25px;background-color:var(--content-bg);box-shadow:0 4px 20px rgba(0,0,0,.08);border-radius:12px;transition:background-color .3s;border:1px solid var(--border-color)}
.skip-link{position:absolute;top:-48px;left:0;background:#000;color:#fff;padding:8px 16px;z-index:10011;text-decoration:none;transition:top .2s}
.skip-link:focus{top:0}

/* ===== MICRO HEADER (black fixed bar with live data) ===== */
.site-micro-header{display:none;position:fixed;top:0;left:0;right:0;width:100%;background:#000;color:#f5f5f7;font-size:.75rem;font-weight:500;border-bottom:1px solid rgba(255,255,255,.08);z-index:10010}
.site-micro-header-inner{max-width:none;margin:0;padding-left:var(--header-inline-pad-left);padding-right:var(--header-inline-pad-right);display:flex;align-items:center;justify-content:space-between;height:30px;gap:16px}
.site-micro-header-group{display:flex;align-items:center;gap:14px}
.site-micro-item{display:inline-flex;align-items:center;gap:7px;color:rgba(245,245,247,.82);white-space:nowrap;text-decoration:none;background:none;border:0;cursor:pointer;font:inherit;padding:0}
.site-micro-item i{font-size:.72rem;opacity:.85}
.site-micro-item .live-dot{width:6px;height:6px;border-radius:50%;background:#34c759;box-shadow:0 0 0 3px rgba(52,199,89,.22);animation:fj-micro-live 2s ease-in-out infinite}
@keyframes fj-micro-live{0%,100%{opacity:1}50%{opacity:.55}}
a.site-micro-item,button.site-micro-item{transition:.15s}
a.site-micro-item:hover,button.site-micro-item:hover{color:#fff}
.site-micro-sep{width:1px;height:12px;background:rgba(255,255,255,.15)}
@media(max-width:720px){.site-micro-header-inner{padding:0 14px;gap:10px}.site-micro-sep,.site-micro-hide-sm{display:none}.site-micro-header-group{gap:10px}}

/* ===== FIXED HEADER ===== */
.site-header-fixed{position:fixed;top:0;left:0;width:100%;z-index:10002;isolation:isolate;background:#0c0c0c;border-bottom:1px solid #262626;box-shadow:none;transition:background-color .3s,border-color .3s}
body.dark-mode .site-header-fixed{background:#0c0c0c;border-bottom-color:#262626;box-shadow:none}

/* ===== DARK HEADER CHROME (preto sitewide) =====
   Prefixadas com .site-header-fixed para vencer as regras-base que vem DEPOIS
   no arquivo (mesma especificidade = ultima vence; aqui subimos a especificidade). */
.site-header-fixed .header-logo-text{color:#fff}
.site-header-fixed .header-logo-text em{color:#5b8cff}
.site-header-fixed .header-logo-mark{background:#fff;color:#0a5dff;box-shadow:0 2px 8px rgba(0,0,0,.35),inset 0 0 0 1px rgba(255,255,255,.6)}
.site-header-fixed .header-category-link{color:#e5e7eb}
.site-header-fixed .header-category-link:hover,.site-header-fixed .header-category-link.is-active,
.site-header-fixed .header-category-item:hover .header-category-link,
.site-header-fixed .header-category-item:focus-within .header-category-link{background:rgba(255,255,255,.12);color:#fff}
.site-header-fixed .header-category-item+.header-category-item::before{background:rgba(255,255,255,.2)}
.site-header-fixed .header-search .search-input-wrapper{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.16)}
.site-header-fixed .header-search .search-input{color:#fff}
.site-header-fixed .header-search .search-input::placeholder,.site-header-fixed .header-search .search-icon{color:#9ca3af}
.site-header-fixed .theme-toggle-button{background:rgba(255,255,255,.1);color:#f5f5f7;border-color:rgba(255,255,255,.18)}
.site-header-fixed .theme-toggle-button:hover{background:rgba(255,255,255,.2)}
.site-header-fixed .hamburger-button,.site-header-fixed .mobile-action-btn{color:#fff}
.site-header-fixed .mobile-action-btn:hover{background:rgba(255,255,255,.12)}
.header-container{max-width:none;width:100%;margin:0;padding-left:var(--header-inline-pad-left);padding-right:var(--header-inline-pad-right);display:flex;align-items:center;gap:12px;height:60px;position:relative;flex-wrap:nowrap}
.header-spacer{height:60px}
.header-logo-link{text-decoration:none;flex-shrink:0;margin-right:0;display:inline-flex;align-items:center;gap:10px}
.header-logo-mark{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:9px;background:#fff;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.35),inset 0 0 0 1px rgba(255,255,255,.6)}
.header-logo-mark img{display:block;width:28px;height:28px;object-fit:contain}
.header-logo-text{font-size:1.12rem;font-weight:800;letter-spacing:-.02em;color:var(--text-color);white-space:nowrap}
.header-logo-text em{font-style:normal;color:var(--primary-color)}

.header-primary-nav{display:flex;align-items:center;gap:0;min-width:0}
.header-primary-nav-list{display:flex;align-items:center;gap:4px;margin:0;padding:0;list-style:none}
.header-category-item{position:relative;display:flex;align-items:center;height:100%}
.header-category-item+.header-category-item{margin-left:14px;padding-left:18px}
.header-category-item+.header-category-item::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:1px;height:18px;background:rgba(100,116,139,.4)}
.header-category-link{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 14px;border-radius:10px;border:0;background:0 0;color:var(--secondary-color);text-decoration:none;font-size:.95rem;font-weight:700;letter-spacing:.01em;white-space:nowrap;cursor:pointer;transition:background-color .2s ease,color .2s ease;gap:8px}
.header-category-link:hover,.header-category-link.is-active{background-color:var(--light-bg);color:var(--primary-color)}
.header-category-item:focus-within .header-category-link,.header-category-item:hover .header-category-link{background-color:var(--light-bg);color:var(--primary-color)}
.header-category-item:focus-within .dropdown-arrow,.header-category-item:hover .dropdown-arrow{transform:rotate(180deg)}
.header-category-item:focus-within .dropdown-menu,.header-category-item:hover .dropdown-menu{display:block;opacity:1;visibility:visible;transform:translateY(0) scale(1);transition-delay:0s}
.header-category-menu{min-width:280px}

/* Dropdown glass */
.dropdown-menu{position:absolute;top:calc(100% + 8px);left:0;right:auto;background:rgba(255,255,255,.92);-webkit-backdrop-filter:blur(30px) saturate(180%) contrast(1.1);backdrop-filter:blur(30px) saturate(180%) contrast(1.1);border:1.5px solid transparent;border-radius:18px;background-image:linear-gradient(rgba(255,255,255,.92),rgba(255,255,255,.92)),linear-gradient(135deg,rgba(0,113,227,.5) 0,rgba(136,58,234,.4) 33%,rgba(255,149,0,.4) 66%,rgba(255,45,85,.5) 100%);background-origin:border-box;background-clip:padding-box,border-box;box-shadow:0 15px 50px rgba(0,0,0,.15),0 5px 20px rgba(0,0,0,.1),inset 0 1px 0 rgba(255,255,255,.8);list-style:none;padding:10px 8px;margin:0;min-width:280px;z-index:1001;overflow:hidden auto;max-height:calc(100dvh - 88px);overscroll-behavior:contain;opacity:0;visibility:hidden;transform:translateY(10px) scale(.98);transform-origin:top left;transition:opacity .2s ease,transform .2s cubic-bezier(.2,.8,.2,1),visibility .2s;transition-delay:.3s}
.nav-item-dropdown:hover .dropdown-menu{display:block;opacity:1;visibility:visible;transform:translateY(0) scale(1);transition-delay:0s;box-shadow:0 20px 60px rgba(0,0,0,.2),0 0 0 1px rgba(0,113,227,.15)}
body.dark-mode .dropdown-menu{background:rgba(30,30,35,.92);background-image:linear-gradient(rgba(30,30,35,.92),rgba(30,30,35,.92)),linear-gradient(135deg,rgba(10,132,255,.6) 0,rgba(136,58,234,.5) 33%,rgba(255,149,0,.45) 66%,rgba(255,69,58,.5) 100%);box-shadow:0 15px 50px rgba(0,0,0,.6),0 5px 20px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.1)}
.dropdown-section-title{position:relative;padding:14px 15px 8px;font-size:.65em;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--secondary-color);margin-top:6px;cursor:default;list-style:none}
.dropdown-section-title::before{content:'';position:absolute;top:0;left:15px;right:15px;height:1px;background:linear-gradient(90deg,transparent 0,var(--border-color) 20%,var(--border-color) 80%,transparent 100%)}
.dropdown-section-title:first-child{margin-top:0;padding-top:10px}
.dropdown-section-title:first-child::before{display:none}
.dropdown-item{display:flex;align-items:center;padding:11px 16px;margin:2px 4px;color:var(--text-color);text-decoration:none;font-size:.95em;font-weight:500;border-radius:10px;transition:background-color .2s ease,color .2s ease,transform .15s ease,box-shadow .2s ease}
.dropdown-item i{margin-right:12px;width:20px;text-align:center;color:#d35400;font-size:.95em;opacity:.85}
.dropdown-item.active,.dropdown-item:hover{background:linear-gradient(135deg,#0071e3 0,#0077ed 100%);color:#fff;transform:translateX(2px);box-shadow:0 4px 12px rgba(0,113,227,.3),inset 0 1px 0 rgba(255,255,255,.2)}
.dropdown-item.active i,.dropdown-item:hover i{color:inherit;opacity:1}
body.dark-mode .dropdown-item:hover{background:linear-gradient(135deg,#0a84ff 0,#409cff 100%);box-shadow:0 4px 16px rgba(10,132,255,.4)}
.dropdown-arrow{font-size:.7em;margin-left:2px;transition:transform .2s ease}
.dropdown-divider{height:1px;margin:8px 6px;background:linear-gradient(90deg,transparent,var(--border-color),transparent);opacity:.6;list-style:none}

/* Right group: search + theme + menu */
.header-right-group{display:flex;align-items:center;justify-content:flex-end;gap:12px;margin-left:auto;min-width:0;flex-shrink:0}
.header-actions{display:flex;align-items:center;gap:10px}
.mobile-actions{display:none}
.mobile-action-btn{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background-color:transparent;border:none;color:var(--text-color);border-radius:50%;cursor:pointer;transition:all .2s ease;font-size:1.1em}
.mobile-action-btn:hover{background-color:var(--light-bg)}

.header-search{flex:0 0 auto;width:auto;min-width:120px;max-width:220px;margin:0;position:relative;transition:width .4s cubic-bezier(.16,1,.3,1)}
.header-search:focus-within{max-width:min(360px,30vw);box-shadow:0 10px 40px rgba(0,0,0,.1)}
.search-input-wrapper{display:flex;align-items:center;background-color:var(--content-bg);border:1px solid var(--border-color);border-radius:10px;padding:8px 14px;transition:all .2s ease;position:relative}
.search-input-wrapper:focus-within{border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(0,113,227,.15)}
.search-icon{color:var(--secondary-color);margin-right:10px;font-size:.9em}
.search-input{flex:1;border:none;background:0 0;font-size:.95em;color:var(--text-color);outline:0;font-family:inherit;min-width:0}
.search-input::placeholder{color:var(--secondary-color)}
.header-search-toggle{display:none}
.search-results{position:absolute;top:calc(100% + 8px);left:0;right:0;background-color:var(--content-bg);border:1px solid var(--border-color);border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.12);z-index:10010;max-height:420px;overflow-y:auto;display:none}
.search-results.active{display:block}
.search-no-results{padding:20px;text-align:center;color:var(--secondary-color);font-size:.95em}
.search-prefix-hint{padding:10px 16px;font-size:.8em;color:var(--secondary-color);background-color:var(--light-bg);border-bottom:1px solid var(--border-color)}
.search-result-item{display:flex;align-items:center;padding:12px 16px;text-decoration:none;color:var(--text-color);transition:background-color .15s ease;border-bottom:1px solid rgba(0,0,0,.05)}
.search-result-item:last-child{border-bottom:none}
.search-result-item.highlighted,.search-result-item:hover{background-color:#f2f7ff}
body.dark-mode .search-result-item.highlighted,body.dark-mode .search-result-item:hover{background-color:rgba(10,132,255,.15)}
.search-result-icon{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background-color:var(--light-bg);border-radius:10px;margin-right:12px;color:var(--primary-color);font-size:.95em;flex-shrink:0}
.search-result-info{flex:1;min-width:0}
.search-result-title{font-weight:500;font-size:.95em;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.search-result-title strong{color:var(--primary-color)}
.search-result-desc{font-size:.8em;color:var(--secondary-color);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
body.dark-mode .search-input-wrapper{background-color:rgba(255,255,255,.08);border-color:rgba(255,255,255,.12)}
body.dark-mode .search-results{background-color:var(--content-bg);border-color:rgba(255,255,255,.12);box-shadow:0 10px 40px rgba(0,0,0,.4)}
body.dark-mode .search-result-icon{background-color:rgba(255,255,255,.08)}

.theme-toggle-button{background-color:#e9ecef;color:#343a40;border:1px solid #ced4da;padding:7px 10px;width:40px;height:40px;border-radius:6px;cursor:pointer;font-size:1.1em;transition:background-color .2s,color .2s,border-color .2s;display:flex;align-items:center;justify-content:center;line-height:1}
.theme-toggle-button:hover{background-color:#d3d9df}
body.dark-mode .theme-toggle-button{background-color:#3a3a3c;color:#f5f5f7;border-color:#545458}

.hamburger-button{display:none;font-size:1.3em;background:0 0;border:none;color:var(--text-color);cursor:pointer;line-height:1;padding:0 5px;position:relative;z-index:20005}

.main-nav .nav-list{margin:0;padding:0;list-style:none;display:flex;align-items:center;gap:0}
.nav-item-dropdown{position:relative;height:100%;display:flex;align-items:center}
.nav-link-dropdown-toggle{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:0 16px;border:2px solid #d35400;border-radius:10px;color:#d35400;background-color:transparent;font-weight:500;text-decoration:none;transition:all .2s ease;white-space:nowrap}
.nav-link-dropdown-toggle:hover{background-color:#d35400;color:#fff;transform:translateY(-2px);box-shadow:0 4px 10px rgba(211,84,0,.3)}
.header-right-group .nav-item-dropdown>.dropdown-menu{left:auto;right:0;transform-origin:top right;max-width:min(92vw,360px);width:max-content}

/* Mobile header */
@media(max-width:991px){
  .header-container{display:flex;align-items:center;gap:10px;padding-left:10px;padding-right:10px;justify-content:space-between;box-sizing:border-box}
  .hamburger-button{display:flex!important;order:1;width:44px;height:44px;align-items:center;justify-content:center;flex-shrink:0}
  .header-logo-link{order:2;margin:0;flex:0 1 auto;min-width:0}
  .header-logo-text{font-size:1rem}
  .header-primary-nav,.header-search{display:none!important}
  .header-right-group{display:flex!important;order:3;margin-left:auto;flex-shrink:0}
  .mobile-actions{display:flex!important;gap:6px;align-items:center}
  .main-nav{position:fixed;top:60px;left:0;right:0;background:var(--content-bg);border-bottom:1px solid var(--border-color);box-shadow:0 18px 40px rgba(0,0,0,.18);transform:translateY(-130%);transition:transform .25s ease;z-index:10001;max-height:calc(100vh - 60px);overflow-y:auto}
  .main-nav.is-open{transform:translateY(0)}
  .main-nav .nav-list{flex-direction:column;align-items:stretch;padding:10px}
  .nav-item-dropdown{width:100%;flex-direction:column;align-items:stretch}
  .nav-link-dropdown-toggle{display:none}
  .main-nav .dropdown-menu{position:static;display:block;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;background:transparent;backdrop-filter:none;-webkit-backdrop-filter:none;min-width:0;max-height:none;overflow:visible;padding:0;transition:none}
  body.dark-mode .main-nav .dropdown-menu{background:transparent}
  .site-header-fixed.mobile-search-active .header-search{display:flex!important;position:fixed;top:0;left:0;right:0;width:100%;height:60px;max-width:none;margin:0;z-index:10010;background-color:var(--content-bg);padding:10px 15px;box-sizing:border-box;border-bottom:1px solid var(--border-color);align-items:center}
  .site-header-fixed.mobile-search-active .search-input-wrapper{width:100%;display:flex;align-items:center;border-radius:10px;flex:1}
  .site-header-fixed.mobile-search-active .search-results{position:fixed;top:60px;left:0;right:0;border-radius:0;max-height:calc(100vh - 60px)}
}
.mobile-search-close-btn{display:none;background:0 0;border:none;color:var(--text-color);font-size:1.2rem;padding:10px;cursor:pointer;margin-left:8px;flex-shrink:0}
.site-header-fixed.mobile-search-active .mobile-search-close-btn{display:flex;align-items:center;justify-content:center}

/* ===== BREADCRUMB ===== */
.breadcrumb{font-size:.85em;margin-bottom:20px;padding:10px 15px;background-color:var(--light-bg);border-radius:6px}
.breadcrumb ol{list-style:none;padding:0;margin:0;display:flex;align-items:center;flex-wrap:wrap}
.breadcrumb li{display:flex;align-items:center}
.breadcrumb li a{color:var(--primary-color);text-decoration:none}
.breadcrumb li a:hover{text-decoration:underline}
.breadcrumb li+li::before{content:'>';margin:0 10px;color:var(--secondary-color)}
.breadcrumb li span[aria-current=page]{color:var(--secondary-color);font-weight:500}

/* ===== TOOL CARDS (home families / categories) ===== */
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:15px;margin-top:20px;margin-bottom:40px}
.tool-card{--card-color:var(--primary-color);display:flex;align-items:center;background:radial-gradient(ellipse 110% 85% at 100% 0,color-mix(in srgb,var(--card-color) 4%,transparent),transparent 70%),#fff;padding:15px;border:1px solid #e0e0e0;border-radius:10px;text-decoration:none;color:var(--text-color);transition:all .2s ease;position:relative;overflow:hidden;box-shadow:0 2px 5px rgba(0,0,0,.05)}
.tool-card:hover{transform:translateY(-2px);box-shadow:0 5px 15px rgba(0,0,0,.1);border-color:var(--card-color);color:var(--text-color)}
body.dark-mode .tool-card{background:radial-gradient(ellipse 110% 85% at 100% 0,color-mix(in srgb,var(--card-color) 7%,transparent),transparent 70%),#1e293b;border-color:#3a3a3c}
.tool-icon{font-size:1.8em;width:50px;height:50px;display:flex;align-items:center;justify-content:center;border-radius:8px;background-color:rgba(0,0,0,.05);color:var(--card-color);margin-right:15px;flex-shrink:0;transition:background-color .2s,color .2s;position:relative;z-index:1}
.tool-card:hover .tool-icon{background-color:var(--card-color);color:#fff}
body.dark-mode .tool-icon{background-color:rgba(255,255,255,.1)}
.tool-info{flex:1;min-width:0;position:relative;z-index:1}
.tool-name{font-weight:600;font-size:1rem;margin-bottom:3px;display:block;color:var(--text-color)}
.tool-meta{font-size:.85rem;color:var(--secondary-color);line-height:1.3;display:block}
.tool-card__watermark{position:absolute;right:-14px;bottom:-20px;font-size:110px;color:var(--card-color);opacity:.06;pointer-events:none;transform:rotate(-10deg);transition:opacity .2s ease,transform .2s ease;line-height:1}
.tool-card:hover .tool-card__watermark{opacity:.1;transform:rotate(-6deg) scale(1.04)}
body.dark-mode .tool-card__watermark{opacity:.1}

/* ===== FOOTER (cdp-like) ===== */
.site-footer{margin-top:0;background:var(--content-bg);border-top:1px solid var(--border-color)}
.site-footer__inner{max-width:1100px;margin:0 auto;padding:44px var(--space) 20px;display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px}
.site-footer__heading{font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;color:var(--secondary-color);margin:0 0 12px;font-weight:700}
.site-footer__col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.site-footer__col a{color:var(--secondary-color);text-decoration:none;font-size:.92rem}
.site-footer__col a:hover{color:var(--primary-color);text-decoration:underline}
.site-footer__brandname{font-size:1.1rem;font-weight:800;color:var(--text-color)}
.site-footer__brandname em{font-style:normal;color:var(--primary-color)}
.site-footer__tagline{color:var(--secondary-color);margin:.4em 0;font-size:.92rem}
.site-footer__author{color:var(--text-color);font-size:.9rem}
.site-footer__legal{max-width:1100px;margin:0 auto;padding:18px var(--space) 36px;border-top:1px solid var(--border-color);text-align:center}
.site-footer__disclaimer{font-size:.8rem;color:var(--secondary-color);margin:0 0 6px}
.site-footer__copy{font-size:.8rem;color:var(--secondary-color);margin:0}
@media(max-width:720px){.site-footer__inner{grid-template-columns:1fr;gap:24px}}

/* ===== Floating WhatsApp button (feature-gated; OFF by default) ===== */
.wa-fab{position:fixed;right:22px;bottom:22px;z-index:10015;display:grid;place-items:center;width:56px;height:56px;border-radius:50%;background:#25d366;color:#fff;box-shadow:0 6px 18px rgba(37,211,102,.4),0 2px 6px rgba(0,0,0,.15);transition:transform .18s cubic-bezier(.2,.8,.2,1),box-shadow .18s}
.wa-fab:hover{transform:translateY(-3px) scale(1.04);box-shadow:0 12px 28px rgba(37,211,102,.45);color:#fff}
.wa-fab:active{transform:scale(.97)}
body.dark-mode .wa-fab{box-shadow:0 6px 18px rgba(37,211,102,.3),0 2px 8px rgba(0,0,0,.5)}
/* When an article tocfab exists, it must sit ABOVE the WhatsApp fab. */
body.has-wa-fab .tocfab,body.has-wa-fab [data-toc-fab]{bottom:94px}
@media(max-width:600px){.wa-fab{width:50px;height:50px;right:16px;bottom:16px}body.has-wa-fab .tocfab,body.has-wa-fab [data-toc-fab]{bottom:82px}}
@media print{.wa-fab{display:none}}

/* prose helper kept for inner pages */
.prose{max-width:var(--maxw-prose);color:var(--text-color)}
.prose--narrow{margin-inline:auto}
.prose p,.prose ul,.prose ol{margin:0 0 1.1em}
.prose h2{margin:1.8em 0 .6em}
.prose h3{margin:1.4em 0 .4em}
.muted{color:var(--secondary-color)}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--primary-color);color:#fff;padding:12px 22px;border-radius:10px;font-weight:600;border:0;cursor:pointer;text-decoration:none;transition:.2s;font-family:inherit;font-size:.98rem}
.btn:hover{background:var(--hover-color);transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,113,227,.28);color:#fff;text-decoration:none}
.btn--ghost{background:transparent;color:var(--text-color);border:1px solid var(--border-color)}
.btn--ghost:hover{background:var(--light-bg);box-shadow:none;color:var(--text-color)}