:root{
  --bg:#f2f2f2;
  --surface:#ffffff;
  --surface-alt:#e8e8e8;
  --text:#333333;
  --muted:#666666;
  --navy:#cc0000;
  --blue:#aa0000;
  --green:#cc2222;
  --green-dark:#990000;
  --orange:#e5a13c;
  --border:#e6d9d9;
  --shadow:0 18px 50px rgba(60,10,10,.10);
  --radius:22px;
  --header-h:72px;
  --sidebar-w:290px;
}
[data-theme="dark"]{
  --bg:#1a0a0a;
  --surface:#241010;
  --surface-alt:#2e1515;
  --text:#f8f0f0;
  --muted:#c6aeae;
  --navy:#f08080;
  --blue:#e05050;
  --green:#e05050;
  --green-dark:#cc2222;
  --orange:#f0b75c;
  --border:#3b2020;
  --shadow:0 18px 50px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{margin:0;background:var(--bg);color:var(--text);font-family:Nunito,Arial,sans-serif;line-height:1.6}
a{color:inherit}
button,input{font:inherit}
.btn-voltar-sidebar{display:block;background:var(--navy);color:#fff;padding:10px 14px;border-radius:10px;text-decoration:none;font-weight:700;font-size:.88rem;margin-bottom:16px;text-align:center}
.btn-voltar-sidebar:hover{background:var(--blue);color:#fff}
.reading-progress{position:fixed;z-index:9999;top:0;left:0;height:4px;background:linear-gradient(90deg,var(--green),var(--orange));width:0}
.site-header{position:fixed;z-index:1000;top:0;left:0;right:0;height:var(--header-h);display:flex;align-items:center;justify-content:space-between;padding:0 22px;background:#1a1a1a;backdrop-filter:blur(14px);border-bottom:1px solid #333}
.brand{display:flex;gap:10px;align-items:center;text-decoration:none}.brand-logo{height:38px;width:auto}.brand strong,.brand small{display:block}.brand strong{color:#ffffff;font-size:1.1rem}.brand small{color:#aaaaaa;font-size:.75rem}
.header-actions{display:flex;gap:8px}.icon-button,.menu-button{border:1px solid #444;background:#2a2a2a;color:#ffffff;width:42px;height:42px;border-radius:12px;cursor:pointer}.menu-button{display:none}
.sidebar{position:fixed;z-index:900;top:var(--header-h);bottom:0;left:0;width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);overflow:auto;padding:18px}
.sidebar-nav{display:grid;gap:10px}.sidebar-home,.sidebar-nav summary,.sidebar-nav details a{display:block;padding:10px 12px;border-radius:10px;text-decoration:none}.sidebar-home,.sidebar-nav summary{font-weight:900;color:var(--navy)}.sidebar-nav summary{cursor:pointer}.sidebar-nav details a{margin-left:10px;color:var(--muted);font-size:.92rem}.sidebar-nav a:hover,.sidebar-nav a.active{background:var(--surface-alt);color:var(--navy)}
.content{margin-left:var(--sidebar-w);padding-top:var(--header-h)}
.hero{min-height:calc(100vh - var(--header-h));display:grid;grid-template-columns:1fr;align-items:center;gap:50px;padding:80px clamp(28px,6vw,90px);background:linear-gradient(135deg,#686868,#7a7a7a 65%,#686868);color:#fff;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:url('../Mapa-Mundi.png') center/cover no-repeat;opacity:.25;mix-blend-mode:screen;pointer-events:none}
.hero-copy{position:relative;z-index:1}
.eyebrow{display:inline-block;background:var(--orange);color:#1e2a35;padding:7px 14px;border-radius:999px;font-weight:900;font-size:.8rem}.hero h1{font-family:'Montserrat';font-size:clamp(2.8rem,6vw,5rem);line-height:1.05;margin:22px 0;font-weight:900;letter-spacing:-1px}.hero-lead{font-size:1.35rem;max-width:700px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.button{border:0;border-radius:14px;padding:14px 20px;font-weight:900;cursor:pointer;text-decoration:none}.button.primary{background:var(--orange);color:#1e2a35}.button.secondary{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5)}
.hero-visual{position:relative;display:grid;place-items:center}.hero-map{font-size:13rem;filter:drop-shadow(0 25px 25px rgba(0,0,0,.25))}.hero-pin{position:absolute;font-size:4rem;top:28%;left:53%;animation:bob 2.4s ease-in-out infinite}@keyframes bob{50%{transform:translateY(-10px)}}
.overview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:28px clamp(28px,6vw,90px);background:var(--surface-alt)}.overview-grid a{background:var(--surface);padding:22px;border-radius:18px;text-decoration:none;box-shadow:var(--shadow)}.overview-grid span{display:grid;place-items:center;width:38px;height:38px;background:var(--navy);color:#fff;border-radius:50%;font-weight:900}.overview-grid strong,.overview-grid small{display:block}.overview-grid strong{margin-top:14px;color:var(--navy)}.overview-grid small{color:var(--muted)}
.part-intro{display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:center;padding:36px clamp(28px,6vw,90px);color:#fff}.part-intro span{border:2px solid currentColor;border-radius:16px;padding:10px 14px;font-weight:900}.part-intro h2{font-family:'Montserrat';font-size:2.8rem;line-height:1;margin:0}.part-intro p{margin:6px 0 0}.part-one{background:linear-gradient(100deg,#6b0000,#a01515)}.part-two{background:linear-gradient(100deg,#8d5c15,#d18b25)}.part-three{background:linear-gradient(100deg,#500000,#8b0000)}.part-four{background:linear-gradient(100deg,#7a0c0c,#b52020)}
.section{padding:82px clamp(28px,6vw,90px)}.section.alt{background:var(--surface-alt)}.section-heading{text-align:center;margin-bottom:34px}.section-heading span{display:inline-block;background:var(--orange);color:#1e2a35;padding:7px 15px;border-radius:999px;font-weight:900}.section-heading h2{font-family:'Montserrat';font-size:clamp(2.7rem,5vw,4.5rem);line-height:1;margin:14px 0;color:var(--navy)}.lead{max-width:880px;margin:0 auto 36px;text-align:center;font-size:1.18rem}
.site-footer{padding:48px;text-align:center;background:#3a3a3a;color:#fff}.site-footer a{color:#ffcccc}.site-footer img{filter:brightness(0) invert(1);margin-bottom:16px}
.search-overlay{position:fixed;z-index:2000;inset:0;background:rgba(0,0,0,.6);padding:8vh 20px}.search-dialog{max-width:760px;margin:auto;background:var(--surface);border-radius:22px;box-shadow:var(--shadow);max-height:84vh;overflow:auto}.search-header{display:flex;gap:10px;padding:16px;border-bottom:1px solid var(--border)}.search-header input{flex:1;padding:13px;border:1px solid var(--border);border-radius:12px;background:var(--bg);color:var(--text)}.search-results{padding:12px}.search-results a{display:block;padding:13px;border-radius:12px;text-decoration:none}.search-results a:hover{background:var(--surface-alt)}.search-results strong,.search-results small{display:block}.search-results small{color:var(--muted)}
@media(max-width:1020px){.menu-button{display:block}.sidebar{transform:translateX(-100%);transition:.25s}.sidebar.open{transform:translateX(0)}.content{margin-left:0}.overview-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){.hero{grid-template-columns:1fr;padding-top:55px}.hero-visual{display:none}.overview-grid{grid-template-columns:1fr}.part-intro{grid-template-columns:1fr}.part-intro h2{font-size:2.3rem}}
@media print{.site-header,.sidebar,.reading-progress,.search-overlay,.hero-actions{display:none!important}.content{margin:0;padding:0}.hero{min-height:auto;color:#000;background:#fff}.section,.part-intro{break-inside:avoid}.part-intro{color:#000;background:#fff!important;border-top:3px solid #000}}