/* PORTECOS — homepage "livro de capítulos" (v6) */
:root{--bg:#050d1f;--bg2:#08152e;--ink2:#e8eef8;--mute2:#8a9bb8;--line2:rgba(255,255,255,.12);--idx:300px}
body.night{background:var(--bg);color:var(--ink2)}
body.night h1,body.night h2,body.night h3,body.night h4{color:#fff}
body.night .site-header{background:transparent!important;border-bottom-color:transparent!important;backdrop-filter:none!important}
body.night .site-header.scrolled{background:rgba(5,13,31,.85)!important;border-bottom-color:var(--line2)!important;backdrop-filter:blur(12px)!important}
body.night .site-header .main-nav a,body.night .site-header.scrolled .main-nav a{color:#fff}
body.night .site-header.scrolled .lang,body.night .site-header.scrolled .contact-link{color:#8fd0ff}
body.night .site-header.scrolled .contact-link{border-left-color:var(--line2)}
body.night .site-header.scrolled .logo-dark{display:none}body.night .site-header.scrolled .logo-light{display:block}
body.night .site-header.scrolled .menu-btn span{background:#fff}
body.night .main-nav.open{background:var(--bg2);border-color:var(--line2)}body.night .main-nav.open a{color:#fff}

.book{display:grid;grid-template-columns:var(--idx) 1fr;animation:none}
.book-index{position:sticky;top:0;height:100vh;padding:120px 0 40px 40px;border-right:1px solid var(--line2);display:flex;flex-direction:column}
.book-index ol{list-style:none;margin:0;padding:0}
.book-index li a{display:grid;grid-template-columns:34px 1fr;align-items:baseline;padding:12px 0;font-size:13px;color:var(--mute2);border-top:1px solid transparent;transition:color .3s,padding-left .3s}
.book-index li a b{font-family:var(--display);font-weight:500;font-size:11px;letter-spacing:.14em;color:var(--mute2)}
.book-index li a.on{color:#fff;padding-left:10px}
.book-index li a.on b{color:var(--obra)}
.index-clock{margin-top:auto;font-variant-numeric:tabular-nums}
.index-clock span{display:block;font-family:var(--display);font-size:30px;font-weight:300;color:#fff;letter-spacing:.02em}
.index-clock small{display:block;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--mute2);margin-top:6px}

.book-pages{min-width:0}
.ch{padding:140px clamp(28px,5vw,88px);border-bottom:1px solid var(--line2);position:relative}
.ch-num{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--obra);font-weight:700;margin:0 0 26px}
.ch-head{margin-bottom:64px;display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:30px}
.ch-head h2{font-size:clamp(40px,4.6vw,76px);line-height:.98;letter-spacing:-.04em;margin:0;font-weight:500}
.ch-head>p{width:100%}
.link-big{display:inline-flex;align-items:center;gap:14px;font-family:var(--display);font-size:15px;color:#fff;padding-bottom:8px;border-bottom:1px solid rgba(255,255,255,.4);transition:.3s}
.link-big::after{content:"→";color:var(--obra);transition:transform .3s}
.link-big:hover{border-color:#fff}.link-big:hover::after{transform:translateX(6px)}

/* 00 */
.ch-open{padding:0;height:100vh;height:100svh;min-height:680px;overflow:hidden;display:flex;align-items:flex-end}
.open-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.open-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,13,31,.4),rgba(5,13,31,.1) 35%,rgba(5,13,31,.95) 100%)}
.open-copy{position:relative;z-index:2;padding:0 clamp(28px,5vw,88px) 90px}
.open-copy h1{font-size:clamp(64px,9.4vw,160px);line-height:.88;letter-spacing:-.05em;margin:0 0 30px;font-weight:500;color:transparent;-webkit-text-stroke:1.5px rgba(255,255,255,.85)}
.open-copy h1 .fill{color:#fff;-webkit-text-stroke:0}
.open-copy .l{display:block;overflow:hidden}.open-copy .l>span{display:block;transform:translateY(110%);transition:transform 1.1s cubic-bezier(.2,.8,.2,1)}
.ch-open.ready .l>span{transform:none}.ch-open.ready .l:nth-child(2)>span{transition-delay:.12s}.ch-open.ready .l:nth-child(3)>span{transition-delay:.24s}
.open-sub{font-size:clamp(16px,1.5vw,20px);color:rgba(255,255,255,.78);max-width:560px;margin:0}
.open-down{position:absolute;right:clamp(28px,5vw,88px);bottom:40px;z-index:2;width:44px;height:44px;border:1px solid rgba(255,255,255,.4);border-radius:50%;display:grid;place-items:center}
.open-down span{width:1px;height:16px;background:#fff;animation:downHint 1.8s ease-in-out infinite}
@keyframes downHint{0%,100%{transform:translateY(-4px);opacity:.4}50%{transform:translateY(4px);opacity:1}}

/* 01 */
.obra-grid{display:grid;grid-template-columns:1.2fr .8fr;grid-template-rows:auto auto;gap:22px;position:relative}
.obra-video{margin:0;grid-row:1/3;background:#000;position:relative}
.obra-video video{width:100%;height:100%;min-height:520px;object-fit:cover;display:block}
.obra-video figcaption{position:absolute;left:18px;bottom:16px;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.7);background:rgba(5,13,31,.6);padding:8px 12px;backdrop-filter:blur(6px)}
.obra-facts{background:var(--bg2);padding:36px 34px;border:1px solid var(--line2)}
.obra-lead{font-size:17px;line-height:1.55;color:#fff;margin:0 0 28px}
.obra-facts dl{margin:0 0 28px;border-top:1px solid var(--line2)}
.obra-facts dl div{display:grid;grid-template-columns:110px 1fr;gap:16px;padding:12px 0;border-bottom:1px solid var(--line2);font-size:13px}
.obra-facts dt{color:var(--mute2);text-transform:uppercase;letter-spacing:.12em;font-size:10px;font-weight:700;padding-top:2px}
.obra-facts dd{margin:0;color:#fff;font-weight:600}
.obra-photo{margin:0;overflow:hidden;aspect-ratio:16/10}
.obra-photo img{width:100%;height:100%;object-fit:cover}
.obra-photo.a{grid-column:1}.obra-photo.b{grid-column:2}
.obra-stamp{position:absolute;left:24px;top:24px;right:auto;bottom:auto;width:112px;height:112px;background:rgba(5,13,31,.7);backdrop-filter:blur(4px);z-index:3}

/* 02 */
.ch-fazemos{overflow:hidden}
.fazemos-list{border-top:1px solid var(--line2)}
.fz{display:grid;grid-template-columns:70px 1fr 1fr;align-items:baseline;gap:30px;padding:30px 0;border-bottom:1px solid var(--line2);color:#fff;transition:padding-left .35s,background .35s;position:relative;z-index:2}
.fz:hover,.fz.on{padding-left:18px}
.fz-n{font-family:var(--display);font-size:12px;letter-spacing:.16em;color:var(--obra)}
.fz-t{font-family:var(--display);font-weight:500;font-size:clamp(28px,3.4vw,54px);letter-spacing:-.035em;line-height:1}
.fz-d{font-size:14px;color:var(--mute2);max-width:420px;line-height:1.5}
.fz-preview{position:absolute;pointer-events:none;width:320px;aspect-ratio:4/3;overflow:hidden;opacity:0;transition:opacity .35s;z-index:1;top:0;left:0;box-shadow:0 30px 60px rgba(0,0,0,.5);border:1px solid var(--line2)}
.fz-preview.show{opacity:1}
.fz-preview img{width:100%;height:100%;object-fit:cover}
.fz-tools{margin:40px 0 0;font-size:13px;color:var(--mute2)}

/* 03 */
.angola-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:start}
.angola-map{position:relative;background:transparent}
.angola-map img{width:100%;height:auto;display:block}
.ch-angola .map-pin span{background:var(--bg2);color:#fff;border:1px solid var(--line2)}
.ch-angola .map-pin i{background:var(--obra);box-shadow:0 0 0 6px rgba(255,90,31,.2)}
.ch-angola .map-pin.is-muted{opacity:.25}
.ang-stat{border-top:1px solid var(--line2);padding:22px 0}
.ang-stat strong{display:block;font-family:var(--display);font-weight:300;font-size:clamp(48px,5vw,84px);line-height:.95;letter-spacing:-.04em;color:#fff;font-variant-numeric:tabular-nums}
.ang-stat span{display:block;font-size:12px;color:var(--mute2);margin-top:8px}
.ch-angola .year-tabs{margin-top:34px;display:flex;flex-wrap:wrap;gap:6px}
.ch-angola .year-tab{background:transparent;border:1px solid var(--line2);color:var(--mute2);padding:8px 12px;font-size:12px;cursor:pointer}
.ch-angola .year-tab.active{background:#fff;color:var(--bg);border-color:#fff}
.ch-angola .year-list{margin-top:22px}
.ch-angola .year-list article{display:grid;grid-template-columns:64px 1fr;gap:16px;padding:14px 0;border-top:1px solid var(--line2)}
.ch-angola .year-list article.is-hidden{display:none}
.ch-angola .year-list strong{font-family:var(--display);font-weight:500;color:var(--obra);font-size:13px;letter-spacing:.08em}
.ch-angola .year-list h4{margin:0 0 4px;font-size:15px;font-weight:600}
.ch-angola .year-list p{margin:0;font-size:13px;color:var(--mute2)}
.ch-angola .map-source{font-size:11px;color:var(--mute2);margin-top:26px}

/* 04 */
.ref-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ref{position:relative;overflow:hidden;aspect-ratio:4/3;background:var(--bg2);color:#fff;display:block}
.ref.big{grid-column:span 2;aspect-ratio:auto}
.ref img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s cubic-bezier(.2,.8,.2,1),filter .6s;filter:saturate(.7)}
.ref:hover img{transform:scale(1.05);filter:none}
.ref::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(5,13,31,.9),transparent 55%)}
.ref div{position:absolute;z-index:2;left:22px;right:22px;bottom:20px}
.ref small{display:block;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:#8fd0ff;margin-bottom:8px;font-weight:700}
.ref h3{font-size:clamp(18px,1.6vw,26px);margin:0;letter-spacing:-.02em}
.ref.big h3{font-size:clamp(26px,2.6vw,40px)}

/* 05 */
.cli-wall{display:grid;grid-template-columns:repeat(6,1fr);border-top:1px solid var(--line2);border-left:1px solid var(--line2)}
.cli-wall .logo-cell{width:auto;height:130px;background:#000;border-right:1px solid var(--line2);border-bottom:1px solid var(--line2);padding:26px 30px}
.cli-wall .logo-cell img{filter:grayscale(1) invert(1) contrast(1.15);opacity:.7;max-height:52px;transition:.3s}
.cli-wall .logo-cell:hover img{opacity:1}

/* 06 */
.emp-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:60px;align-items:start}
.emp-manifesto{font-family:var(--display);font-weight:300;font-size:clamp(24px,2.6vw,40px);line-height:1.2;letter-spacing:-.02em;color:#fff;margin:0}
.emp-facts{border-top:1px solid var(--line2)}
.emp-facts div{padding:16px 0;border-bottom:1px solid var(--line2);font-size:13px;color:var(--mute2);display:flex;align-items:baseline;gap:18px}
.emp-facts b{font-family:var(--display);font-weight:500;font-size:26px;color:#fff;min-width:110px;letter-spacing:-.03em}
.emp-links{grid-column:1/-1;display:flex;gap:40px;flex-wrap:wrap;margin-top:20px}

/* 07 */
.ct-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:60px}
.ct-form{display:grid;grid-template-columns:1fr 1fr;gap:22px 26px}
.ct-form label{display:block;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--mute2);font-weight:700}
.ct-form label.full{grid-column:1/-1}
.ct-form input,.ct-form textarea{display:block;width:100%;margin-top:10px;background:transparent;border:0;border-bottom:1px solid rgba(255,255,255,.3);color:#fff;font:inherit;font-size:16px;padding:10px 0;outline:none;transition:border-color .3s}
.ct-form input:focus,.ct-form textarea:focus{border-color:var(--obra)}
.ct-form textarea{min-height:120px;resize:vertical}
.ct-form button{grid-column:1/-1;justify-self:start;margin-top:10px}
.ct-info a{display:block;font-family:var(--display);font-size:clamp(20px,2vw,30px);color:#fff;margin-bottom:10px;letter-spacing:-.02em}
.ct-info p{color:var(--mute2);font-size:14px}
.ct-note{margin-top:34px;padding-top:18px;border-top:1px solid var(--line2)}

.night-footer{background:var(--bg);padding:28px 0;border-top:1px solid var(--line2)}
.night-footer .footer-bottom{padding:0;color:var(--mute2)}
.night-footer a{color:#fff;font-size:11px}

@media(max-width:1200px){:root{--idx:220px}.book-index{padding-left:24px}.ref-grid{grid-template-columns:1fr 1fr}.ref.big{grid-column:span 2}.cli-wall{grid-template-columns:repeat(4,1fr)}}
@media(max-width:1000px){.book{grid-template-columns:1fr}.book-index{display:none}.obra-grid,.angola-grid,.emp-grid,.ct-grid{grid-template-columns:1fr}.obra-video{grid-row:auto}.obra-photo.a,.obra-photo.b{grid-column:auto}.fz{grid-template-columns:50px 1fr}.fz-d{grid-column:2}.fz-preview{display:none}.ch{padding:96px 24px}.cli-wall{grid-template-columns:repeat(3,1fr)}.ct-form{grid-template-columns:1fr}.obra-stamp{display:none}}
@media(max-width:560px){.ref-grid{grid-template-columns:1fr}.ref.big{grid-column:auto;aspect-ratio:4/3}.cli-wall{grid-template-columns:repeat(2,1fr)}.open-copy{padding-bottom:70px}}
@media(prefers-reduced-motion:reduce){.open-copy .l>span{transform:none;transition:none}.open-down span{animation:none}}