/* Sinapse — landing.
 *
 * Dark-only por decisao: o heroi e codigo luminoso fino e uma rede sobre fundo
 * escuro, e nao existe equivalente claro honesto disso. Tipografia 100% mono de
 * sistema, sem webfont: a pagina depende de glifos de desenho de caixa e o
 * canvas mede o proprio avanco de caractere com measureText, entao fixar uma
 * fonte via @font-face nao compraria nada e quebraria o alinhamento de coluna
 * quando um glifo faltasse.
 *
 * Ortografia: a prosa e portugues do Brasil acentuado. Todo texto dentro de
 * mockup, <pre> e caixa de comando e copia LITERAL da saida do produto, e
 * portanto fica sem acento, como o produto imprime. A diferenca e proposital:
 * mockup e citacao, nao texto editorial.
 */

:root {
  color-scheme: dark;

  --bg: #0b0e14;
  --panel: #131720;
  --border: #232838;
  --fg: #e6e9ef;
  --muted: #8b93a7;
  --accent: #7cc4ff;

  /* Derivados — so pro canvas e pras regioes de markdown. */
  --accent-soft: rgba(124, 196, 255, 0.08);
  --accent-glow: rgba(124, 196, 255, 0.35);
  --accent-deep: #2b6ea8;

  /* Estados, mapeados 1:1 de src/cli/theme.ts. So dentro de mockups. */
  --ok: #7ee787;
  --warn: #e3b341;
  --error: #ff7b72;
  --dim: #6b7280;

  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "DejaVu Sans Mono", monospace;
  --gutter: 76px;
  --maxw: 1180px;
}

* { box-sizing: border-box; }

html {
  /* CLIP, nunca HIDDEN: overflow-x:hidden num ancestral cria um scroll
   * container e quebra em silencio position:sticky de descendentes. Nao ha
   * sticky aqui hoje, mas a armadilha e cara demais pra deixar armada. */
  overflow-x: clip;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  font-variant-ligatures: none;
}

/* O canvas atravessa a pagina inteira: ele e o heroi no comeco e a regua
 * vertical depois. Por isso as secoes nao podem ter fundo proprio — o --bg
 * vive no body e so os paineis/mockups pintam por cima. */
#net {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

main, footer, .hero { position: relative; z-index: 1; }

a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

code, pre, kbd { font-family: inherit; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 50;
  background: var(--panel);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 0.8rem;
  text-decoration: none;
}
.skip:focus { top: 16px; }

/* ─────────────────────────── HERÓI ─────────────────────────── */

/* Exatamente uma tela, com ou sem JS.
 *
 * Versoes anteriores davam 130-190svh ao heroi e prendiam o palco com
 * position:sticky pra segurar a cena durante o handoff. Nao era necessario: o
 * canvas e `position: fixed`, entao a animacao continua na tela sozinha. O
 * palco preso so custava rolagem que a secao 01 tinha que esperar, e esse
 * excedente aparecia como tela vazia no meio da pagina. Sem ele, a coluna de
 * texto do heroi sai rolando enquanto a secao 01 sobe — os dois dividem a tela
 * durante a transicao, que e o "o site vai aparecendo" que a pagina promete. */
.hero { height: 100svh; }

.hero-stage {
  height: 100svh;
  display: flex;
  align-items: center;
}

.hero-overlay {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px 0 var(--gutter);
}
/* A coluna de texto fica na metade esquerda: a direita e onde a nota se
 * remonta. Sem isso a pill do curl passa por baixo da nota. Especificidade de
 * dois seletores de propositoo: `.cmd { max-width: 100% }` vem depois e
 * ganharia de `.hero-overlay > *`. */
.hero-overlay > * { max-width: 580px; }
.hero-overlay .cmd { max-width: 580px; }
.hero-overlay .cmd-text { font-size: 0.82rem; }

/* Reserva o espaco do wordmark ASCII de 60 colunas desenhado no canvas.
 * Sem JS o canvas nao existe, entao a caixa colapsa e nao deixa buraco. */
.wordmark-box { height: 0; margin-bottom: 0; }
.js .wordmark-box { height: clamp(64px, 9vw, 104px); margin-bottom: 28px; }

/* clip-path, nunca display:none — um h1 removido do fluxo some tambem da
 * arvore de acessibilidade em parte dos leitores de tela. */
.js .hero-h1 {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}
.hero-h1 {
  margin: 0 0 24px;
  font-size: clamp(2rem, 11vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-eyebrow {
  margin: 0 0 20px;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.hero-sub {
  margin: 0 0 32px;
  max-width: 46ch;
  font-size: clamp(0.95rem, 1.6vw, 1.15rem);
  line-height: 1.6;
  color: var(--muted);
}

.hero-note {
  margin: 14px 0 0;
  font-size: 0.7rem;
  color: var(--muted);
}

.hero-links {
  margin-top: 28px;
  display: flex;
  gap: 24px;
  font-size: 0.85rem;
}
.hero-links a { color: var(--muted); text-decoration: none; border-bottom: 1px solid var(--border); padding-bottom: 2px; }
.hero-links a:hover { color: var(--accent); border-color: var(--accent); }

/* Sem JS nao ha animacao pra pular, entao o botao nao existe. */
.hero-skip { display: none; }
.js .hero-skip {
  display: block;
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  font: inherit;
  font-size: 0.72rem;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  opacity: clamp(0, calc(1 - var(--p, 0) / 0.25), 1);
}
.hero-skip:hover { color: var(--accent); border-color: var(--accent); }

/* ─────────────────────── CAIXA DE COMANDO ─────────────────────── */

.cmd {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 14px 14px 16px;
  max-width: 100%;
  overflow-x: auto;
}
.cmd::before {
  content: "$";
  color: var(--dim);
  flex-shrink: 0;
  user-select: none;
}
.cmd-text {
  color: var(--accent);
  white-space: nowrap;
  font-size: 0.88rem;
  flex: 1;
}
.cmd-copy {
  /* Sticky + fundo solido: o comando rola POR BAIXO do botao. Sem isso o
     .cmd-text (nowrap, flex:1) empurra o botao pra fora do scrollport e a
     acao principal da pagina fica cortada — ou some, no mobile. */
  position: sticky;
  right: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 6px;
  padding: 7px 11px;
  font: inherit;
  font-size: 0.72rem;
  cursor: pointer;
  flex-shrink: 0;
  min-height: 34px;
}
.cmd-copy:hover { border-color: var(--accent); color: var(--accent); }
.cmd-copy[data-done] { color: var(--ok); border-color: var(--ok); }

.cmd-sm { padding: 10px 12px; }
.cmd-sm .cmd-text { font-size: 0.78rem; }
.cmd-lg { max-width: 640px; margin: 32px auto 0; }

/* ─────────────────────────── SEÇÕES ─────────────────────────── */

#s01 { padding-top: 64px; }

.sec {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 120px 32px 120px var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 72px;
  align-items: center;
}

.sec-text > * { max-width: 52ch; }

.eyebrow {
  margin: 0 0 18px;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
}
.eyebrow .num { color: var(--muted); margin-right: 10px; }

.sec h2 {
  margin: 0 0 20px;
  font-size: clamp(1.5rem, 3.2vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  max-width: 18ch;
}
.sec h2 code { color: var(--accent); font-weight: inherit; }

.sec p { margin: 0 0 16px; font-size: 0.95rem; line-height: 1.65; color: var(--muted); }
.sec p code { color: var(--fg); }

.sec-link a { text-decoration: none; border-bottom: 1px solid var(--border); }
.sec-link a:hover { border-color: var(--accent); }
.sec-link code { color: var(--accent); }

.fineprint { font-size: 0.78rem !important; color: var(--muted) !important; border-left: 1px solid var(--border); padding-left: 14px; }

.caption { font-size: 0.7rem !important; color: var(--muted) !important; margin-top: 14px !important; }

.sec-visual { min-width: 0; display: flex; flex-direction: column; gap: 20px; }

/* ─────────────────── PAINEL (a TUI em Ink) ─────────────────── */

.panel {
  background: var(--panel);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  border-radius: 10px;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  font-size: 0.78rem;
  line-height: 1.5;
}
.panel-title {
  padding: 12px 16px 10px;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
}
.panel-sub {
  padding: 10px 16px 0;
  color: var(--muted);
  font-size: 0.72rem;
}
.panel-body { padding: 14px 16px; }

.tui-status { font-size: 0.75rem !important; color: var(--muted) !important; margin: 0 !important; }
.dot-accent { color: var(--accent); }
.dot-dim { color: var(--dim); }
.dot-ok { color: var(--ok); }
.dot-warn { color: var(--warn); }
.dot-error { color: var(--error); }

.tui-grid {
  display: grid;
  grid-template-columns: auto minmax(0, 14ch) minmax(0, 1fr);
  gap: 4px 12px;
  align-items: baseline;
}
.tui-name { color: var(--fg); }
.tui-detail { color: var(--dim); font-variant-numeric: tabular-nums; }

.helpbar {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  font-size: 0.7rem;
  color: var(--muted);
}
.helpbar kbd { color: var(--accent); font-weight: 700; }

.diff { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.diff-col { padding-right: 14px; }
.diff-col + .diff-col { border-left: 1px solid var(--border); padding-left: 14px; padding-right: 0; }
.diff-col p { margin: 0 0 2px; font-size: 0.74rem !important; line-height: 1.45; }
.diff-head { margin-bottom: 8px !important; font-weight: 700; }
.diff-head-warn { color: var(--warn) !important; }
.diff-head-accent { color: var(--accent) !important; }
.diff-col p { color: var(--muted) !important; }
.diff-col + .diff-col p:not(.diff-head):not(.more) { color: var(--fg) !important; }
.more { color: var(--dim) !important; margin-top: 6px !important; }

.consent p { margin: 0 0 3px; font-size: 0.76rem !important; color: var(--muted) !important; }
.consent .cur { color: var(--accent); }
.consent .box { color: var(--accent); }
.consent.consent p.off .box, .consent p.off .box { color: var(--dim); }
.consent .tui-name { color: var(--fg); }
.consent .path { color: var(--dim); }

/* ────────────────── CARD DE NOTA MARKDOWN ────────────────── */

.note-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
}
.note-path {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 0.7rem;
  color: var(--muted);
}
.note-body {
  padding: 14px 16px;
  font-size: 0.74rem;
  line-height: 1.55;
  overflow-x: auto;
}
.note-card-sm .note-body { font-size: 0.7rem; }

.nl { white-space: pre; color: var(--muted); }
.nl .k { color: var(--muted); }
.nl .b { color: var(--ok); }
.nl .h { color: var(--accent-deep); }
.nl .c { color: var(--fg); }
.nl .i { color: var(--dim); font-style: italic; }
.nl .w { color: var(--accent); }
.fm-rule { color: var(--border); }
.h1 { color: var(--fg); font-weight: 700; font-size: 0.88rem; }
.h2m, .h3 { color: var(--fg); font-weight: 600; }
.mark { color: var(--accent); font-size: 0.66rem; }
.mark-ok { color: var(--ok); font-size: 0.66rem; }
.mark-warn { color: var(--warn); font-size: 0.66rem; }

.callout {
  color: var(--muted);
  border-left: 2px solid var(--accent);
  background: var(--accent-soft);
  padding: 3px 10px;
  white-space: normal;
}
.callout-warn { border-left-color: var(--warn); background: rgba(227, 179, 65, 0.08); }

/* A regiao delimitada e o argumento inteiro da secao 02, entao ela precisa
 * ser visivel COMO regiao — nao so um texto entre dois comentarios. */
.region { position: relative; padding: 6px 10px; margin: 4px 0; border-left: 2px solid var(--accent); background: var(--accent-soft); }
.region-user { border-left-color: var(--ok); background: rgba(126, 231, 135, 0.07); }
.region-prop { border-left-color: var(--warn); background: rgba(227, 179, 65, 0.07); }
.region-tag {
  position: absolute;
  top: -9px; right: 8px;
  background: var(--panel);
  border: 1px solid var(--ok);
  color: var(--ok);
  font-size: 0.6rem;
  padding: 1px 7px;
  border-radius: 999px;
}

/* ─────────────────────────── GRAFO ─────────────────────────── */

.graph { width: 100%; height: auto; overflow: visible; }
.g-node rect { fill: var(--panel); stroke: var(--border); stroke-width: 1; }
.g-node text { fill: var(--fg); font-family: var(--mono); font-size: 12px; }
.g-edge { fill: none; stroke-width: 1.5; }
.g-ok { stroke: var(--accent); }
.g-cand { stroke: var(--warn); stroke-dasharray: 4 4; }
.g-drop { stroke: var(--muted); stroke-dasharray: 3 5; opacity: 0.55; }
.g-lbl { fill: var(--muted); font-family: var(--mono); font-size: 10px; }
.g-lbl-warn { fill: var(--warn); }
.g-lbl-drop { fill: var(--muted); opacity: 0.75; text-decoration: line-through; }

.legend { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; font-size: 0.7rem; color: var(--muted); }
.legend li { display: flex; align-items: center; gap: 10px; }
.lg { width: 22px; height: 0; border-top: 1.5px solid; flex-shrink: 0; }
.lg-ok { border-color: var(--accent); }
.lg-cand { border-color: var(--warn); border-top-style: dashed; }
.lg-drop { border-color: var(--muted); border-top-style: dashed; opacity: 0.7; }

.evidence {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 0.72rem;
  overflow-x: auto;
}
.evidence p { margin: 0 0 4px; font-size: 0.72rem !important; white-space: nowrap; }
.evidence-title { color: var(--dim) !important; margin-bottom: 8px !important; font-size: 0.66rem !important; text-transform: uppercase; letter-spacing: 0.1em; }
.ev-kind { color: var(--accent); }
.ev-file { color: var(--muted); }
.ev-code { color: var(--fg); }

/* ─────────────────────────── MCP ─────────────────────────── */

.call { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.chip { border: 1px solid var(--accent); color: var(--accent); border-radius: 999px; padding: 4px 12px; font-size: 0.72rem; }
.call-args { color: var(--muted); font-size: 0.72rem; }

.json {
  margin: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 0.72rem;
  line-height: 1.55;
  overflow-x: auto;
  tab-size: 2;
}
.json .k { color: var(--muted); }
.json .s { color: var(--accent-deep); }
.json .n { color: var(--ok); }
.json .p { color: var(--border); }
.json .hl { background: var(--accent-soft); color: var(--accent); border-radius: 2px; }

.tools, .cmds { margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.tools > div, .cmds > div { display: flex; flex-direction: column; gap: 2px; padding: 10px 0; border-top: 1px solid var(--border); }
.tools dt, .cmds dt { color: var(--accent); font-size: 0.74rem; }
.tools dd, .cmds dd { margin: 0; color: var(--muted); font-size: 0.7rem; }

.principles { list-style: none; margin: 0; padding: 0; }
.principles li {
  padding: 12px 0 12px 22px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
  position: relative;
}
.principles li::before { content: "●"; position: absolute; left: 0; color: var(--accent); font-size: 0.7rem; }

/* ─────────────────────── SEÇÃO 07 (quebra) ─────────────────────── */

.sec-full {
  display: block;
  text-align: center;
  max-width: 860px;
  padding: 140px 32px;
  border-top: 1px solid var(--border);
}
.sec-full .eyebrow { margin-bottom: 22px; }
.sec-full h2.big { max-width: none; margin: 0 auto; font-size: clamp(1.8rem, 4.5vw, 2.75rem); }
.sec-full .hero-note { margin-top: 18px; }
.sec-full .cmds { margin-top: 64px; text-align: left; }

/* ─────────────────────────── RODAPÉ ─────────────────────────── */

footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 56px 32px 72px var(--gutter);
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  font-size: 0.75rem;
}
.foot-col { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.foot-h { margin: 0 0 4px; color: var(--muted); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.12em; }
.foot-col a { color: var(--muted); text-decoration: none; }
.foot-col a:hover { color: var(--accent); }
.foot-p { margin: 0; color: var(--muted); }

/* ─────────────────── REVEAL NO SCROLL ───────────────────
 * CSS scroll-driven, sem JS e sem IntersectionObserver. O estado inicial
 * opacity:0 vive DENTRO do @supports: se vazasse pra fora, um browser sem
 * animation-timeline mostraria uma pagina em branco pra sempre. */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .sec-text, .sec-visual, .sec-full > * {
      animation: reveal linear both;
      animation-timeline: view();
      animation-range: entry 8% cover 32%;
    }
    .sec-visual { animation-delay: 0s; }
    @keyframes reveal {
      from { opacity: 0; transform: translateY(26px); }
      to { opacity: 1; transform: none; }
    }
  }
}

/* ─────────────────────── REDUCED MOTION ─────────────────────── */

@media (prefers-reduced-motion: reduce) {
  .hero-skip, .js .hero-skip { display: none; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ─────────────────────────── MOBILE ─────────────────────────── */

@media (max-width: 900px) {
  :root { --gutter: 24px; }
  /* Sinaliza que ha mais conteudo pro lado — so onde de fato transborda. */
  .note-body {
    mask-image: linear-gradient(to right, #000 calc(100% - 24px), transparent);
  }
  .cmd-copy { min-height: 44px; padding: 11px 14px; }
  .hero-overlay { padding: 0 24px; }
  .sec {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
    padding: 88px 24px;
  }
  .sec-text > * { max-width: none; }
  .sec h2 { max-width: 22ch; }
  .tools, .cmds { grid-template-columns: 1fr; }
  footer { grid-template-columns: 1fr; gap: 28px; padding: 48px 24px 64px; }
  .note-body, .panel { font-size: 0.7rem; }
  /* No mobile o wordmark ASCII nao cabe: o h1 em texto assume o lugar dele e
     a caixa reservada pro canvas desaparece. */
  .js .hero-h1 {
    position: static;
    width: auto; height: auto;
    margin: 0 0 20px;
    clip-path: none;
    overflow: visible;
  }
  .js .wordmark-box { display: none; }
  .diff { grid-template-columns: 1fr; }
  .diff-col + .diff-col { border-left: 0; border-top: 1px solid var(--border); padding-left: 0; margin-top: 12px; padding-top: 12px; }
  [data-mobile="skip"] { display: none; }
}

@media (max-width: 560px) {
  .hero-links { gap: 16px; font-size: 0.78rem; }
  .cmd { padding: 12px; gap: 8px; }
  .cmd-text { font-size: 0.72rem; }
  .sec-full { padding: 96px 24px; }
}