/* pantekton.app — folha única: tokens da marca (repo pantekton/brand, tokens/) + componentes do site.
   Regras que esta folha cumpre (brand/docs/APPLICATION-RULES.md, seção B):
   R-B1 tema escuro com as cores listadas; claro é o padrão; botão sol/lua alterna.
   R-B2 uma única seção invertida por página (a de makers).
   R-B4 foco = anel de 2 px na cor do texto, com 3–4 px de afastamento; hover só muda cor.
   Superfícies chapadas: sem sombra, gradiente, desfoque ou transparência. Ângulos de 90° e 45°. */

@import url('fonts.css');

:root {
  /* cores (brand/tokens/colors.css) */
  --pk-k-component: #D67064;
  --pk-k-case: #4FA866;
  --pk-k-app: #5894E0;
  --pk-letter: #46443F;
  --pk-ink: #1C1B19;
  --pk-ink-2: #4A4843;
  --pk-ink-3: #6B6860;
  --pk-paper: #F3F2EE;
  --pk-paper-2: #E4E2DC;
  --pk-white: #FFFFFF;
  --pk-line: #D9D6CE;
  --color-error: #D67064;

  --text-primary: var(--pk-ink);
  --text-secondary: var(--pk-ink-2);
  --text-tertiary: var(--pk-ink-3);
  --surface-page: var(--pk-paper);
  --surface-card: var(--pk-white);
  --surface-2: var(--pk-paper-2);
  --surface-inverse: var(--pk-ink);
  --surface-inverse-2: #262521;
  --text-on-inverse: var(--pk-paper);
  --text-on-inverse-2: #C9C6BE;
  --line-on-inverse: #3A3833;
  --border-hairline: var(--pk-line);
  --focus-ring: var(--pk-ink);
  --k-fragment: url('../img/k-fragment-dark.svg');

  /* tipografia (brand/tokens/typography.css) */
  --font-display: 'Geologica', system-ui, sans-serif;
  --font-text: 'Geologica', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --display-sharpness: 'SHRP' 100;
  --text-sharpness: 'SHRP' 0;

  /* espaço e forma (brand/tokens/spacing.css) */
  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px; --s-5: 24px; --s-6: 32px; --s-7: 48px; --s-8: 64px; --s-9: 96px; --s-10: 128px;
  --radius-control: 4px;
  --radius-card: 6px;
  --stroke-hairline: 1px;
  --stroke-emphasis: 2px;
  --ease-settle: cubic-bezier(0.2, 0, 0, 1);
  --dur-ui: 240ms;
  --dur-logo: 960ms;
  --max-content: 1280px;
  --margin: 20px;
}

/* R-B1 — tema escuro */
:root[data-theme="dark"] {
  --text-primary: #F3F2EE;
  --text-secondary: #C9C6BE;
  --text-tertiary: #9C998F;
  --surface-page: #1C1B19;
  --surface-card: #262521;
  --surface-2: #262521;
  --surface-inverse: #F3F2EE;
  --surface-inverse-2: #E4E2DC;
  --text-on-inverse: #1C1B19;
  --text-on-inverse-2: #4A4843;
  --line-on-inverse: #D9D6CE;
  --border-hairline: #3A3833;
  --focus-ring: #F3F2EE;
  --k-fragment: url('../img/k-fragment-light.svg');
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body {
  margin: 0;
  background: var(--surface-page);
  color: var(--text-primary);
  font-family: var(--font-text);
  font-variation-settings: var(--text-sharpness);
  font-size: 16px;
  line-height: 25px;
  transition: background-color var(--dur-ui) var(--ease-settle), color var(--dur-ui) var(--ease-settle);
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--text-secondary); }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: var(--stroke-emphasis) solid var(--focus-ring); outline-offset: 3px; }
h1, h2, h3, h4 { font-family: var(--font-display); font-variation-settings: var(--display-sharpness); margin: 0; }
h1 { font-size: 44px; line-height: 50px; font-weight: 700; letter-spacing: -0.025em; }
h2 { font-size: 32px; line-height: 38px; font-weight: 600; letter-spacing: -0.01em; }
h3 { font-size: 24px; line-height: 30px; font-weight: 600; letter-spacing: -0.005em; }
h4 { font-size: 19px; line-height: 26px; font-weight: 600; }
p { margin: 0 0 var(--s-4); }
p:last-child { margin-bottom: 0; }
.mono, code, kbd { font-family: var(--font-mono); font-size: 14px; line-height: 21px; }
.label { font-size: 12px; line-height: 16px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-tertiary); }
.lead { font-size: 19px; line-height: 28px; color: var(--text-secondary); }
.muted { color: var(--text-tertiary); }
[hidden] { display: none !important; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { max-width: var(--max-content); margin: 0 auto; padding-left: var(--margin); padding-right: var(--margin); }
@media (min-width: 768px) { :root { --margin: 32px; } }
@media (min-width: 1440px) { :root { --margin: 80px; } }

/* ---------- botões ---------- */
.btn {
  display: inline-flex; align-items: center; gap: var(--s-2);
  min-height: 48px; padding: 0 var(--s-5);
  border: var(--stroke-emphasis) solid var(--text-primary); border-radius: var(--radius-control);
  background: var(--text-primary); color: var(--surface-page);
  font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
  transition: background-color var(--dur-ui) var(--ease-settle), color var(--dur-ui) var(--ease-settle), border-color var(--dur-ui) var(--ease-settle);
}
.btn:hover { background: var(--text-secondary); border-color: var(--text-secondary); color: var(--surface-page); }
.btn-secondary { background: transparent; color: var(--text-primary); }
.btn-secondary:hover { background: var(--surface-2); color: var(--text-primary); border-color: var(--text-primary); }
.inverse .btn { background: var(--text-on-inverse); border-color: var(--text-on-inverse); color: var(--surface-inverse); }
.inverse .btn:hover { background: var(--text-on-inverse-2); border-color: var(--text-on-inverse-2); }
.inverse .btn-secondary { background: transparent; color: var(--text-on-inverse); }
.inverse .btn-secondary:hover { background: var(--surface-inverse-2); color: var(--text-on-inverse); }

/* ---------- cabeçalho ---------- */
.topo { border-bottom: var(--stroke-hairline) solid var(--border-hairline); background: var(--surface-page); }
.topo .wrap { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); min-height: 72px; }
.marca { display: inline-flex; align-items: center; }
.marca img { height: 28px; width: auto; }
.marca .lockup-dark { display: none; }
:root[data-theme="dark"] .marca .lockup-light { display: none; }
:root[data-theme="dark"] .marca .lockup-dark { display: block; }
.nav { display: none; gap: var(--s-5); align-items: center; }
.nav a { text-decoration: none; font-weight: 500; }
.nav a:hover { color: var(--text-secondary); }
@media (min-width: 768px) { .nav { display: flex; } }
.ferramentas { display: flex; align-items: center; gap: var(--s-3); }
.tema {
  width: 40px; height: 40px; padding: 0; display: inline-flex; align-items: center; justify-content: center;
  border: var(--stroke-hairline) solid var(--border-hairline); border-radius: var(--radius-control);
  background: transparent; color: var(--text-primary); cursor: pointer;
}
.tema:hover { color: var(--text-secondary); border-color: var(--text-secondary); }
.tema .lua { display: none; }
:root[data-theme="dark"] .tema .sol { display: none; }
:root[data-theme="dark"] .tema .lua { display: block; }
/* Seletor de idioma: button group outlined (decisão 2026-09-30) — mesma altura e contorno do botão
   sol/lua, segmentos grudados, cantos arredondados só nas pontas; o atual preenchido em tinta. */
[data-lang-switch] { display: inline-flex; align-items: stretch; height: 40px; border: var(--stroke-hairline) solid var(--border-hairline); border-radius: var(--radius-control); overflow: hidden; font-family: var(--font-mono); font-size: 13px; line-height: 16px; text-transform: uppercase; }
[data-lang-switch] a { display: inline-flex; align-items: center; padding: 0 var(--s-3); text-decoration: none; color: var(--text-secondary); background: transparent; transition: background-color var(--dur-ui) var(--ease-settle), color var(--dur-ui) var(--ease-settle); }
[data-lang-switch] a + a { border-left: var(--stroke-hairline) solid var(--border-hairline); }
[data-lang-switch] a:hover { background: var(--surface-2); color: var(--text-primary); }
[data-lang-switch] a[aria-current="page"] { background: var(--text-primary); color: var(--surface-page); font-weight: 700; }
[data-lang-switch] a:focus-visible { outline-offset: -3px; }

/* ---------- seções ---------- */
.secao { padding: var(--s-8) 0; }
@media (min-width: 768px) { .secao { padding: var(--s-9) 0; } }
.secao + .secao { border-top: var(--stroke-hairline) solid var(--border-hairline); }
.secao-cabeca { max-width: 720px; margin-bottom: var(--s-6); }
.secao-cabeca .label { display: block; margin-bottom: var(--s-3); }
.secao-cabeca h2 { margin-bottom: var(--s-3); }

/* R-B2 — a única seção invertida da página, com o fragmento do k cortado pela borda */
.inverse {
  background: var(--surface-inverse) var(--k-fragment) no-repeat;
  background-size: 520px auto; background-position: calc(100% + 140px) -160px;
  color: var(--text-on-inverse);
}
.inverse .muted, .inverse .label { color: var(--text-on-inverse-2); }
.inverse .lead { color: var(--text-on-inverse-2); }
.inverse .secao + .secao, .inverse .hairline { border-color: var(--line-on-inverse); }
.inverse a:hover { color: var(--text-on-inverse-2); }

/* ---------- herói ---------- */
.heroi { padding: var(--s-8) 0 var(--s-8); }
@media (min-width: 768px) { .heroi { padding: var(--s-9) 0; } }
.heroi h1 { font-size: 44px; line-height: 50px; }
@media (min-width: 768px) { .heroi h1 { font-size: 64px; line-height: 68px; font-weight: 800; letter-spacing: -0.025em; } }
.heroi .descritor { font-size: 19px; line-height: 28px; color: var(--text-secondary); margin: var(--s-4) 0 var(--s-5); max-width: 640px; }
.heroi .acoes { display: flex; flex-wrap: wrap; gap: var(--s-3); }
.heroi-grid { display: grid; gap: var(--s-7); align-items: center; }
@media (min-width: 960px) { .heroi-grid { grid-template-columns: 7fr 5fr; } }

/* diagrama da anatomia: componente + case + app = produto */
.anatomia { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-3); }
.peca {
  border: var(--stroke-hairline) solid var(--border-hairline); border-radius: var(--radius-card);
  background: var(--surface-card); padding: var(--s-4);
  display: flex; flex-direction: column; gap: var(--s-3); min-height: 132px;
}
.peca .icone { width: 32px; height: 32px; }
.peca .icone svg { width: 32px; height: 32px; }
.peca-componente .icone { color: var(--pk-k-component); }
.peca-case .icone { color: var(--pk-k-case); }
.peca-app .icone { color: var(--pk-k-app); }
.peca .nome { font-family: var(--font-display); font-variation-settings: var(--display-sharpness); font-weight: 600; }
.peca .quem { font-size: 13px; line-height: 19px; color: var(--text-tertiary); }
.anatomia-nota { margin-top: var(--s-3); font-family: var(--font-mono); font-size: 13px; line-height: 19px; color: var(--text-tertiary); }

/* ---------- cartões e grades ---------- */
.grid-3 { display: grid; gap: var(--s-4); }
@media (min-width: 768px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }
.cartao {
  border: var(--stroke-hairline) solid var(--border-hairline); border-radius: var(--radius-card);
  background: var(--surface-card); padding: var(--s-5);
}
.cartao h3 { margin-bottom: var(--s-3); }
.cartao .icone { width: 24px; height: 24px; margin-bottom: var(--s-4); color: var(--text-primary); }
.cartao-componente .icone { color: var(--pk-k-component); }
.cartao-case .icone { color: var(--pk-k-case); }
.cartao-app .icone { color: var(--pk-k-app); }

/* produtos */
.produto {
  display: grid; gap: var(--s-5); padding: var(--s-6);
  border: var(--stroke-hairline) solid var(--border-hairline); border-radius: var(--radius-card); background: var(--surface-card);
}
@media (min-width: 768px) { .produto { grid-template-columns: 1fr 2fr; align-items: center; } }
.produto .logo-produto img { height: 40px; width: auto; }
.produto .logo-produto .inv { display: none; }
:root[data-theme="dark"] .produto .logo-produto .pos { display: none; }
:root[data-theme="dark"] .produto .logo-produto .inv { display: block; }
.produto .endosso { margin-top: var(--s-3); font-family: var(--font-mono); font-size: 13px; line-height: 19px; color: var(--text-tertiary); }
.produto .estado { display: inline-block; margin-bottom: var(--s-3); padding: 2px var(--s-2); border: var(--stroke-hairline) solid var(--border-hairline); border-radius: var(--radius-control); font-family: var(--font-mono); font-size: 12px; line-height: 16px; color: var(--text-secondary); }
.oficina { margin-top: var(--s-4); padding: var(--s-5); border: var(--stroke-hairline) dashed var(--border-hairline); border-radius: var(--radius-card); color: var(--text-secondary); }

/* passos para makers (dentro da seção invertida) */
.passos { display: grid; gap: var(--s-4); counter-reset: passo; }
@media (min-width: 768px) { .passos { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .passos { grid-template-columns: repeat(4, 1fr); } }
.passo { border: var(--stroke-hairline) solid var(--line-on-inverse); border-radius: var(--radius-card); background: var(--surface-inverse-2); padding: var(--s-5); }
.passo .num { font-family: var(--font-mono); font-size: 13px; line-height: 19px; color: var(--text-on-inverse-2); margin-bottom: var(--s-3); }
.passo h3 { font-size: 19px; line-height: 26px; margin-bottom: var(--s-2); }
.passo p { color: var(--text-on-inverse-2); }
.selo { margin-top: var(--s-6); display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-5); }
.selo img { height: 56px; width: auto; }
.selo p { max-width: 560px; color: var(--text-on-inverse-2); }
.selo-caixa { padding: var(--s-3); background: var(--pk-paper); border-radius: var(--radius-card); }

/* sobre */
.sobre-grid { display: grid; gap: var(--s-6); }
@media (min-width: 960px) { .sobre-grid { grid-template-columns: 1fr 1fr; } }
.grego { font-family: var(--font-display); font-variation-settings: var(--display-sharpness); font-size: 32px; line-height: 38px; font-weight: 600; margin-bottom: var(--s-3); }
.pronuncia { font-family: var(--font-mono); font-size: 14px; line-height: 21px; color: var(--text-tertiary); margin-bottom: var(--s-4); }
dl.fatos { margin: 0; display: grid; grid-template-columns: max-content 1fr; gap: var(--s-2) var(--s-4); }
dl.fatos dt { font-family: var(--font-mono); font-size: 13px; line-height: 25px; color: var(--text-tertiary); }
dl.fatos dd { margin: 0; }

/* contato */
.contato-lista { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--s-3); }
.contato-lista li { display: grid; grid-template-columns: max-content 1fr; gap: var(--s-3); align-items: baseline; }
.contato-lista .label { line-height: 25px; }

/* ---------- rodapé (R-B5) ---------- */
.rodape { border-top: var(--stroke-hairline) solid var(--border-hairline); padding: var(--s-7) 0; color: var(--text-tertiary); font-size: 13px; line-height: 19px; }
.rodape .wrap { display: grid; gap: var(--s-4); }
@media (min-width: 768px) { .rodape .wrap { grid-template-columns: 1fr auto; align-items: end; } }
.rodape .marca img { height: 20px; }
.rodape nav { display: flex; flex-wrap: wrap; gap: var(--s-4); }
.rodape nav a { text-decoration: none; }
.rodape nav a:hover { text-decoration: underline; }
.rodape .tagline { font-family: var(--font-display); font-variation-settings: var(--display-sharpness); font-weight: 600; color: var(--text-primary); font-size: 16px; line-height: 25px; margin: var(--s-3) 0; }

/* páginas de texto (privacidade, 404) */
.texto { max-width: 720px; }
.texto h2 { font-size: 24px; line-height: 30px; margin: var(--s-6) 0 var(--s-3); }
.texto ul { padding-left: 20px; }
.texto li { margin-bottom: var(--s-2); }
.atualizado { font-family: var(--font-mono); font-size: 13px; line-height: 19px; color: var(--text-tertiary); margin-bottom: var(--s-5); }