/* ============================================================
   ONE-PERSON STUDIO — onepersonstudio.org
   Estilos do site. Consome os tokens de ./tokens.css — nenhuma
   cor, fonte ou medida é declarada aqui fora do vocabulário
   --ops-*. Tema escuro fixo (o "caderno" é o modo nativo da marca).
   ============================================================ */

@font-face{
  font-family:"Excalifont";
  src:url("https://excalidraw.nyc3.cdn.digitaloceanspaces.com/fonts/Excalifont-Regular.woff2") format("woff2");
  font-weight:400;font-style:normal;font-display:swap;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

html,body{background:var(--ops-bg-page)}
:root{--header-h:66px}
body{
  font-family:var(--ops-font-sans);color:var(--ops-text-primary);
  line-height:var(--ops-leading-normal);-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,video{max-width:100%;display:block}
a{color:inherit}
::selection{background:var(--ops-moss-500);color:var(--ops-carbon-975)}

/* ---------- ambient grid (graph paper), everywhere except inside the video ---------- */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:var(--ops-graph);background-size:var(--ops-grid-size) var(--ops-grid-size);
  opacity:.55;
}

.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.prose{max-width:66ch}
.prose-wide{max-width:78ch}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;top:-60px;left:16px;z-index:2000;background:var(--ops-moss-800);color:var(--ops-vellum-50);
  padding:12px 18px;border-radius:var(--ops-radius-md);font-weight:600;font-size:14px;
  transition:top var(--ops-duration-base) var(--ops-ease-draft);
}
.skip-link:focus{top:16px}

/* ---------- focus ring, consistent everywhere ---------- */
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:2px solid var(--ops-focus-ring);outline-offset:3px;border-radius:var(--ops-radius-sm);
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header{
  position:fixed;top:0;left:0;right:0;height:var(--header-h);z-index:1000;display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;border-bottom:var(--ops-border-hairline) solid var(--ops-border);
  background:color-mix(in srgb,var(--ops-bg-page) 84%,transparent);backdrop-filter:blur(14px);
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ops-text-primary)}
.logomark{
  width:20px;height:20px;flex-shrink:0;border-radius:15%;transform:rotate(45deg);
  background:var(--ops-moss-500);
}
.brand-word{font-family:var(--ops-font-display);font-weight:700;font-size:14.5px;letter-spacing:var(--ops-tracking-stencil);white-space:nowrap}
.brand-word b{color:var(--ops-text-primary)}

.site-nav{display:flex;align-items:center;gap:4px}
.site-nav a{
  font-family:var(--ops-font-sans);font-weight:600;font-size:13px;color:var(--ops-text-secondary);
  text-decoration:none;padding:9px 14px;border-radius:var(--ops-radius-md);
  transition:color var(--ops-duration-fast) var(--ops-ease-standard),background var(--ops-duration-fast) var(--ops-ease-standard);
}
.site-nav a:hover{color:var(--ops-text-primary);background:var(--ops-surface-raised)}

.nav-toggle{
  display:none;width:38px;height:38px;border-radius:var(--ops-radius-md);border:var(--ops-border-hairline) solid var(--ops-border-strong);
  background:transparent;color:var(--ops-text-primary);cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle svg{width:18px;height:18px}
.nav-toggle .i-close{display:none}
.site-header.nav-open .nav-toggle .i-open{display:none}
.site-header.nav-open .nav-toggle .i-close{display:block}

@media (max-width:760px){
  /* .site-header has backdrop-filter, which makes it the containing block for
     fixed descendants — bottom:0 would resolve against the header's own short
     box, not the viewport. Using an explicit vh-based height sidesteps that. */
  .site-nav{
    position:fixed;top:var(--header-h);left:0;right:0;height:calc(100vh - var(--header-h));height:calc(100dvh - var(--header-h));
    flex-direction:column;align-items:stretch;gap:0;padding:10px 20px 30px;overflow-y:auto;
    background:var(--ops-bg-page);border-bottom:var(--ops-border-hairline) solid var(--ops-border);
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity var(--ops-duration-base) var(--ops-ease-draft),transform var(--ops-duration-base) var(--ops-ease-draft);
  }
  .site-header.nav-open .site-nav{opacity:1;pointer-events:auto;transform:translateY(0)}
  .site-nav a{font-size:16px;padding:14px 6px;border-bottom:var(--ops-border-hairline) solid var(--ops-border)}
  .nav-toggle{display:inline-flex}
}

/* ============================================================
   HERO — vídeo controlado por rolagem
   ============================================================ */
.hero-pin{
  position:relative;
  height:340vh;
  height:340dvh;
}
.hero-sticky{
  position:sticky;top:0;
  height:100vh;height:100dvh;
  width:100%;overflow:hidden;
  display:flex;align-items:flex-end;justify-content:center;
  background:var(--ops-carbon-975);
}
.hero-video{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 30%;
}
.hero-ff,.hero-lf{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 30%;
  pointer-events:none;
}
.hero-ff{opacity:1}
.hero-lf{opacity:0}
.hero-overlay{
  position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(to top, rgba(5,7,7,.86) 0%, rgba(5,7,7,.55) 30%, rgba(5,7,7,0) 62%),
    radial-gradient(120% 90% at 50% 115%, rgba(5,7,7,.7) 0%, rgba(5,7,7,0) 70%);
  opacity:0;
}
.hero-vignette{
  position:absolute;inset:0;pointer-events:none;background:var(--ops-vignette-tech);opacity:.5;
}

.hero-reg{position:absolute;width:18px;height:18px;color:rgba(255,255,255,.55);pointer-events:none;z-index:2}
.hero-reg.tl{top:24px;left:24px}
.hero-reg.tr{top:24px;right:24px;transform:scaleX(-1)}

.hero-content{
  position:relative;z-index:2;width:100%;max-width:1180px;margin:0 auto;
  padding:0 24px clamp(56px,12vh,120px);
  opacity:0;transform:translateY(26px);
}
.hero-kicker{
  display:block;font-family:var(--ops-font-mono);font-size:12px;letter-spacing:var(--ops-tracking-wider);
  text-transform:uppercase;color:var(--ops-moss-300);margin-bottom:16px;
}
.hero-kicker::before{content:"◆ ";color:var(--ops-moss-400)}
.hero-title{
  font-family:var(--ops-font-display);font-weight:700;
  font-size:clamp(2.1rem,6.4vw,5.2rem);line-height:1.05;letter-spacing:-.01em;
  color:var(--ops-vellum-50);max-width:16ch;
  text-shadow:0 2px 30px rgba(0,0,0,.45);
}

.hero-scrollcue{
  position:absolute;left:50%;bottom:28px;transform:translateX(-50%);z-index:2;
  display:flex;flex-direction:column;align-items:center;gap:8px;
  font-family:var(--ops-font-mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ops-vellum-400);
}
.hero-scrollcue svg{width:14px;height:18px;animation:hero-cue-bob 1.6s var(--ops-ease-standard) infinite}
@keyframes hero-cue-bob{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

@media (max-width:560px){
  .hero-pin{height:300vh;height:300dvh}
  .hero-title{max-width:13ch}
}

/* reduced motion / no-js: skip the scrub, show a settled, legible hero */
.no-js .hero-pin,
.reduced-motion .hero-pin{height:auto}
.no-js .hero-sticky,
.reduced-motion .hero-sticky{position:relative;height:min(760px,92vh)}
.no-js .hero-overlay,
.reduced-motion .hero-overlay{opacity:1}
.no-js .hero-content,
.reduced-motion .hero-content{opacity:1;transform:none}
.no-js .hero-scrollcue,
.reduced-motion .hero-scrollcue{display:none}
.no-js .hero-ff,.reduced-motion .hero-ff,
.no-js .hero-lf,.reduced-motion .hero-lf{display:none}

/* ============================================================
   SECTIONS — regras gerais
   ============================================================ */
main{position:relative;z-index:1;background:var(--ops-bg-page)}
section{padding:96px 0;border-top:var(--ops-border-hairline) solid var(--ops-border)}
.sec-head{max-width:70ch;margin-bottom:48px}
.overline{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--ops-font-mono);font-size:11.5px;
  text-transform:uppercase;letter-spacing:var(--ops-tracking-wider);color:var(--ops-accent-text);
}
.overline::before{content:"";width:20px;height:var(--ops-border-ruler);background:var(--ops-accent)}
.sec-head h2{
  font-family:var(--ops-font-heading);font-weight:800;font-size:clamp(1.7rem,3.4vw,2.5rem);
  letter-spacing:var(--ops-tracking-tight);line-height:1.15;margin-top:14px;color:var(--ops-text-primary);
}
.sec-head p{font-size:var(--ops-text-lg);color:var(--ops-text-secondary);margin-top:16px;line-height:1.65}
.lede{font-size:clamp(1.05rem,1.6vw,1.25rem);color:var(--ops-text-primary);line-height:1.65}
.lede strong{color:var(--ops-vellum-50);font-weight:700}
p.body-p{font-size:var(--ops-text-base);color:var(--ops-text-secondary);line-height:1.75;margin-top:18px}
p.body-p strong{color:var(--ops-text-primary);font-weight:600}

/* ============================================================
   DEFINIÇÃO — tabela comparativa estilo folha de especificação
   ============================================================ */
.spec-table-wrap{margin-top:48px;overflow-x:auto;border:var(--ops-border-hairline) solid var(--ops-border);border-radius:var(--ops-radius-lg)}
.spec-table{width:100%;border-collapse:collapse;min-width:640px;font-size:13.5px}
.spec-table caption{
  text-align:left;font-family:var(--ops-font-mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ops-text-tertiary);padding:14px 20px;border-bottom:var(--ops-border-hairline) solid var(--ops-border);
}
.spec-table th,.spec-table td{padding:14px 20px;text-align:left;border-bottom:var(--ops-border-hairline) solid var(--ops-border)}
.spec-table thead th{
  font-family:var(--ops-font-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ops-text-tertiary);background:var(--ops-surface);font-weight:600;
}
.spec-table thead th:first-child{color:var(--ops-text-tertiary)}
.spec-table tbody th{
  font-family:var(--ops-font-sans);font-weight:700;color:var(--ops-text-primary);font-size:13.5px;white-space:nowrap;
}
.spec-table td{color:var(--ops-text-secondary);line-height:1.5}
.spec-table td.is-ops{color:var(--ops-accent-text);font-weight:600}
.spec-table tbody tr:last-child th,.spec-table tbody tr:last-child td{border-bottom:none}
.spec-table td.is-ops::before{content:"◆ ";color:var(--ops-moss-500)}

/* ============================================================
   PILARES — Venn ONE / PERSON / STUDIO
   ============================================================ */
.venn-layout{display:grid;grid-template-columns:minmax(280px,460px) 1fr;gap:56px;align-items:center;margin-top:16px}
.venn-figure{
  position:relative;padding:20px;border-radius:var(--ops-radius-lg);
  background:var(--ops-carbon-975);background-image:var(--ops-graph-dark);background-size:24px 24px;
  border:var(--ops-border-hairline) solid var(--ops-border);
}
.venn-figure svg{width:100%;height:auto;overflow:visible}
.venn-caption{margin-top:14px;font-family:var(--ops-font-mono);font-size:10.5px;letter-spacing:.08em;color:var(--ops-text-tertiary);text-align:center}

.venn-reg path{fill:none;stroke:var(--ops-vellum-600);stroke-width:1.5;opacity:.5}
.venn-wash{fill:var(--ops-moss-700);fill-opacity:.16;stroke:none}
.venn-hatch-line{stroke:var(--ops-moss-400);stroke-width:1px;opacity:.65}
.venn-circle{fill:none;stroke:var(--ops-vellum-200);stroke-width:1.75}
.venn-center{fill:var(--ops-moss-400)}
.venn-label{font-family:var(--ops-font-mono);font-size:16px;font-weight:500;letter-spacing:.1em;fill:var(--ops-vellum-100);text-anchor:middle}

.pillars{display:flex;flex-direction:column;gap:28px}
.pillar{padding-left:20px;border-left:var(--ops-border-ruler) solid var(--ops-border)}
.pillar.is-active{border-left-color:var(--ops-accent)}
.pillar-name{
  display:flex;align-items:baseline;gap:10px;font-family:var(--ops-font-heading);font-weight:800;font-size:1.15rem;color:var(--ops-text-primary);
}
.pillar-name span{font-family:var(--ops-font-mono);font-size:10.5px;color:var(--ops-text-tertiary);font-weight:500;letter-spacing:.1em}
.pillar p{margin-top:8px;font-size:14.5px;color:var(--ops-text-secondary);line-height:1.65}

@media (max-width:900px){
  .venn-layout{grid-template-columns:1fr;gap:36px}
  .venn-figure{max-width:360px;margin:0 auto}
}

/* ============================================================
   POR QUE AGORA — argumento + citação manuscrita
   ============================================================ */
.callout{
  margin:44px 0 8px;padding:28px 30px;border:var(--ops-border-hairline) dashed var(--ops-border-strong);
  border-radius:var(--ops-radius-lg);background:var(--ops-surface);position:relative;
}
.callout p{
  font-family:var(--ops-font-hand);font-size:clamp(1.3rem,2.6vw,1.7rem);color:var(--ops-vellum-50);
  text-shadow:var(--ops-glow-pen);line-height:1.4;max-width:36ch;
}
.callout cite{
  display:block;margin-top:14px;font-family:var(--ops-font-mono);font-style:normal;font-size:10.5px;
  letter-spacing:.1em;text-transform:uppercase;color:var(--ops-moss-300);
}

/* ============================================================
   PRINCÍPIOS — grade numerada
   ============================================================ */
.principle-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1px;
  background:var(--ops-border);border:var(--ops-border-hairline) solid var(--ops-border);
  border-radius:var(--ops-radius-lg);overflow:hidden;margin-top:16px;
}
.principle{background:var(--ops-bg-page);padding:30px 28px;transition:background var(--ops-duration-base) var(--ops-ease-standard)}
.principle:hover{background:var(--ops-surface)}
.principle-num{font-family:var(--ops-font-mono);font-size:12px;color:var(--ops-accent-text);letter-spacing:.1em}
.principle h3{font-family:var(--ops-font-heading);font-weight:700;font-size:1.05rem;color:var(--ops-text-primary);margin-top:12px}
.principle p{font-size:13.5px;color:var(--ops-text-secondary);margin-top:10px;line-height:1.65}

/* ============================================================
   FAQ — <details> nativo, sem JS
   ============================================================ */
.faq-list{margin-top:16px;border-top:var(--ops-border-hairline) solid var(--ops-border)}
.faq-item{border-bottom:var(--ops-border-hairline) solid var(--ops-border)}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;cursor:pointer;font-family:var(--ops-font-heading);font-weight:700;font-size:1rem;
  color:var(--ops-text-primary);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .q-mark{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;border:var(--ops-border-hairline) solid var(--ops-border-strong);
  display:flex;align-items:center;justify-content:center;color:var(--ops-text-tertiary);position:relative;
  transition:transform var(--ops-duration-base) var(--ops-ease-draft),border-color var(--ops-duration-base),color var(--ops-duration-base);
}
.faq-item summary .q-mark::before,.faq-item summary .q-mark::after{
  content:"";position:absolute;background:currentColor;transition:transform var(--ops-duration-base) var(--ops-ease-draft),opacity var(--ops-duration-base);
}
.faq-item summary .q-mark::before{width:10px;height:1.5px}
.faq-item summary .q-mark::after{width:1.5px;height:10px}
.faq-item[open] summary .q-mark{border-color:var(--ops-accent);color:var(--ops-accent-text)}
.faq-item[open] summary .q-mark::after{opacity:0;transform:rotate(90deg)}
.faq-item .faq-a{padding:0 4px 24px;max-width:70ch}
.faq-item .faq-a p{font-size:14.5px;color:var(--ops-text-secondary);line-height:1.75}

/* ============================================================
   FECHAMENTO
   ============================================================ */
.closing{
  background:var(--ops-carbon-975);background-image:var(--ops-graph-dark);background-size:28px 28px;
  border-radius:var(--ops-radius-xl);padding:clamp(40px,7vw,80px) clamp(24px,6vw,72px);text-align:center;
  position:relative;overflow:hidden;
}
.closing::before{content:"";position:absolute;inset:14px;border:var(--ops-border-hairline) solid rgba(255,255,255,.12);border-radius:calc(var(--ops-radius-xl) - 6px);pointer-events:none}
.closing p{
  font-family:var(--ops-font-heading);font-weight:800;font-size:clamp(1.4rem,3vw,2.1rem);line-height:1.35;
  color:var(--ops-vellum-50);max-width:34ch;margin:0 auto;letter-spacing:var(--ops-tracking-tight);
}
.closing .closing-lockup{margin-top:32px;display:flex;align-items:center;justify-content:center;gap:10px}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{border-top:var(--ops-border-hairline) solid var(--ops-border);padding:48px 0 36px;position:relative;z-index:1}
.footer-top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:28px;align-items:flex-start}
.footer-tagline{font-family:var(--ops-font-hand);font-size:1.1rem;color:var(--ops-vellum-300);max-width:30ch;line-height:1.4}
.footer-nav{display:flex;flex-wrap:wrap;gap:6px 22px}
.footer-nav a{font-size:13px;color:var(--ops-text-secondary);text-decoration:none}
.footer-nav a:hover{color:var(--ops-accent-text)}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:var(--ops-border-hairline) solid var(--ops-border);
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
  font-family:var(--ops-font-mono);font-size:11px;color:var(--ops-text-tertiary);letter-spacing:.02em;
}
.footer-legal{display:flex;flex-direction:column;gap:6px}
.footer-bottom a{
  color:var(--ops-text-tertiary);text-decoration:underline;text-underline-offset:2px;text-decoration-color:var(--ops-border-strong);
  transition:color var(--ops-duration-fast) var(--ops-ease-standard),text-decoration-color var(--ops-duration-fast) var(--ops-ease-standard);
}
.footer-bottom a:hover{color:var(--ops-accent-text);text-decoration-color:currentColor}

/* ============================================================
   BOTÃO utilitário (uso mínimo nesta página — sem CTA comercial)
   ============================================================ */
.btn{
  font-family:var(--ops-font-sans);font-size:15px;font-weight:600;letter-spacing:.01em;padding:13px 22px;
  border-radius:var(--ops-radius-lg);border:var(--ops-border-hairline) solid var(--ops-border-strong);
  background:transparent;color:var(--ops-text-primary);cursor:pointer;text-decoration:none;
  display:inline-flex;align-items:center;gap:8px;transition:all var(--ops-duration-base) var(--ops-ease-draft);
}
.btn:hover{border-color:var(--ops-accent);color:var(--ops-accent-text)}

@media (max-width:640px){
  section{padding:64px 0}
  .principle-grid{grid-template-columns:1fr}
}