/* ============================================================
   layout.css — base compartilhada por todas as páginas.
   Paleta "ônix": preto quente + âmbar/dourado, com variante clara
   ativável via [data-theme="light"] (alternada pelo botão no header).
   ============================================================ */

:root {
  /* Preto levemente quente, não neutro puro — combina com o âmbar */
  --bg: #0B0A08;
  --bg-2: #121110;
  --card: #17150F;
  --card-2: #1D1B14;
  --line: #2A2820;
  --line-2: #3A3728;
  --text: #F5F3EE;
  --muted: #A9A69C;
  --dim: #7D7A70;

  --accent: #F2B705;       /* âmbar vivo — usado em fundos de botão, ícones, marcadores */
  --accent-text: #F6C34D;  /* âmbar mais claro — usado como cor de TEXTO sobre fundo escuro */
  --on-accent: #17130A;    /* texto escuro sobre botão âmbar */
  --accent-wash: rgba(242, 183, 5, .12);

  --sans: "Archivo", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --header-h: 4rem;
  --pad: clamp(1rem, 4.5vw, 2.75rem);
  --maxw: 80rem;
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #FAF8F3;
  --bg-2: #F1EEE3;
  --card: #FFFFFF;
  --card-2: #F5F2E7;
  --line: #E4DFCF;
  --line-2: #D0C9B4;
  --text: #18140C;
  --muted: #5B564A;
  --dim: #7D7862;

  --accent: #E8A800;
  --accent-text: #96690A;  /* âmbar mais escuro — legível sobre fundo claro */
  --on-accent: #17130A;
  --accent-wash: rgba(232, 168, 0, .12);
  color-scheme: light;
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
@media (min-width: 1920px) { html { font-size: 112.5%; } }
@media (min-width: 2560px) { html { font-size: 137.5%; } }
@media (min-width: 3200px) { html { font-size: 162.5%; } }
html.menu-open { overflow: hidden; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
  transition: background-color .25s ease, color .25s ease;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p, ul, ol { margin: 0; }
h1, h2, h3 { font-weight: 700; line-height: 1.05; letter-spacing: -.03em; text-wrap: balance; }
p { text-wrap: pretty; }
em { font-style: normal; color: var(--accent-text); }
::selection { background: var(--accent); color: var(--on-accent); }
:focus-visible { outline: 2px solid var(--accent-text); outline-offset: 3px; }

.wrap { width: min(calc(100% - 2 * var(--pad)), var(--maxw)); margin-inline: auto; }
.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip {
  position: absolute; left: var(--pad); top: -4rem; z-index: 100;
  background: var(--accent); color: var(--on-accent); padding: .75rem 1rem; font-weight: 600; text-decoration: none;
}
.skip:focus { top: .75rem; }

.eyebrow {
  display: block; margin-bottom: .85rem;
  font: 600 .75rem/1 var(--mono); letter-spacing: .12em; color: var(--accent-text);
}
.kicker {
  font: 600 .75rem/1 var(--mono); letter-spacing: .18em; color: var(--accent-text);
}
.arrow { display: inline-block; transform: translateY(-1px); }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  min-height: 3rem; padding: .8rem 1.35rem;
  font: 600 .9375rem/1.1 var(--sans); letter-spacing: .005em; text-decoration: none; text-align: center;
  border: 1px solid transparent; border-radius: 4px; cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease, background-color .12s ease, border-color .12s ease, color .12s ease;
}
.btn-sm { min-height: 2.5rem; padding: .55rem 1rem; font-size: .875rem; }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 24px -8px var(--accent-wash), 0 0 0 1px var(--accent); }
.btn-primary:active { transform: none; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-text); }
.btn-block { width: 100%; }
.ico { flex: none; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--bg); border-bottom: 1px solid var(--line);
  transition: background-color .25s ease, border-color .25s ease;
}
.bar { display: flex; align-items: center; gap: 1rem; height: var(--header-h); }
.brand {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--sans); font-weight: 500; font-size: 1.15rem; letter-spacing: -.01em; text-decoration: none;
}
.brand__mark { height: 1.85rem; width: 1.85rem; object-fit: contain; flex: none; }
.brand__name { color: var(--text); }
.brand__name em { font-weight: 700; }

.nav { margin-left: auto; }
.nav ul { list-style: none; padding: 0; display: flex; gap: .15rem; }
.nav a {
  position: relative; display: inline-block; padding: .5rem .8rem;
  color: var(--muted); font-size: .9375rem; text-decoration: none; transition: color .15s;
}
.nav a::after {
  content: ""; position: absolute; left: .8rem; right: .8rem; bottom: .2rem; height: 2px;
  background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .2s ease;
}
.nav a:hover { color: var(--text); }
.nav a:hover::after, .nav a[aria-current]::after { transform: scaleX(1); }
.nav a[aria-current] { color: var(--text); }
.nav-cta { display: none; }

.hdr-actions { display: flex; align-items: center; gap: .6rem; margin-left: .5rem; }
.theme-toggle {
  position: relative; width: 2.5rem; height: 2.5rem; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line-2); background: var(--card); color: var(--muted);
  border-radius: 4px; cursor: pointer; transition: color .2s, border-color .2s;
}
.theme-toggle:hover { color: var(--accent-text); border-color: var(--accent); }
.theme-toggle svg { position: absolute; transition: opacity .25s ease, transform .25s ease; }
:root[data-theme="dark"] .theme-toggle__sun { opacity: 1; transform: rotate(0); }
:root[data-theme="dark"] .theme-toggle__moon { opacity: 0; transform: rotate(-90deg); }
:root[data-theme="light"] .theme-toggle__sun { opacity: 0; transform: rotate(90deg); }
:root[data-theme="light"] .theme-toggle__moon { opacity: 1; transform: rotate(0); }

.menu-toggle {
  display: none; align-items: center; justify-content: center;
  width: 2.75rem; height: 2.75rem; padding: 0; margin-right: -.5rem;
  background: none; border: 0; color: var(--text); cursor: pointer;
}
.bars { position: relative; display: block; width: 1.25rem; height: 2px; background: currentColor; transition: background-color .15s; }
.bars::before, .bars::after {
  content: ""; position: absolute; left: 0; right: 0; height: 2px; background: currentColor;
  transition: transform .2s ease, top .2s ease;
}
.bars::before { top: -6px; }
.bars::after { top: 6px; }
.menu-toggle[aria-expanded="true"] .bars { background: transparent; }
.menu-toggle[aria-expanded="true"] .bars::before { top: 0; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] .bars::after { top: 0; transform: rotate(-45deg); }

@media (max-width: 899.98px) {
  .menu-toggle { display: inline-flex; margin-left: auto; order: 3; }
  .hdr-cta { display: none; }
  .nav-cta { display: block; }
  .hdr-actions { margin-left: 0; order: 2; }
  .js .nav {
    position: absolute; left: 0; right: 0; top: 100%; margin: 0; order: 4;
    height: calc(100vh - var(--header-h)); height: calc(100dvh - var(--header-h));
    padding: .5rem var(--pad) 2.5rem; overflow-y: auto;
    background: var(--bg); border-top: 1px solid var(--line);
    visibility: hidden; opacity: 0; transform: translateY(-.5rem);
    transition: opacity .2s ease, transform .2s ease, visibility 0s linear .2s;
  }
  html.menu-open .nav { visibility: visible; opacity: 1; transform: none; transition-delay: 0s; }
  .nav ul { display: block; }
  .nav a {
    display: block; padding: 1.05rem 0; border-bottom: 1px solid var(--line);
    font-size: 1.5rem; font-weight: 600; letter-spacing: -.02em; color: var(--text);
  }
  .nav a::after { display: none; }
  .nav a[aria-current] { color: var(--accent-text); }
  .nav .nav-cta { padding-top: 1.75rem; }
  .nav .nav-cta a { display: inline-flex; border: 1px solid transparent; font-size: .9375rem; letter-spacing: 0; padding: .8rem 1.35rem; color: var(--on-accent); }
  html:not(.js) .menu-toggle { display: none; }
  html:not(.js) .bar { flex-wrap: wrap; height: auto; padding-block: .75rem; }
  html:not(.js) .nav { width: 100%; margin: 0; }
  html:not(.js) .nav ul { display: flex; flex-wrap: wrap; gap: 0 .5rem; }
  html:not(.js) .nav a { font-size: 1rem; padding: .5rem .6rem; border: 0; }
}
@media (min-width: 900px) { .hdr-actions { margin-left: .75rem; } }

/* ---------- Componente "frame" (cartão com cantos "+") ---------- */
.frame { position: relative; border: 1px solid var(--line-2); background: var(--bg-2); }
.frame::before, .frame::after {
  content: "+"; position: absolute; font: 400 1.125rem/1 var(--mono); color: var(--accent);
}
.frame::before { top: -.6rem; left: -.38rem; }
.frame::after { bottom: -.6rem; right: -.38rem; }

/* ---------- Seções genéricas ---------- */
.section { border-top: 1px solid var(--line); padding-block: clamp(3.5rem, 8vw, 7.5rem); }
h2 { font-size: clamp(1.75rem, .95rem + 3vw, 3.25rem); }
.sec-lead { color: var(--muted); font-size: clamp(1rem, .95rem + .3vw, 1.15rem); max-width: 34rem; }

.split { display: grid; gap: clamp(1.75rem, 4vw, 3rem); }
@media (min-width: 960px) {
  .split { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(3rem, 7vw, 7rem); }
  .split > .sticky { position: sticky; top: calc(var(--header-h) + 2.5rem); align-self: start; }
}
.head-row { display: grid; gap: 1.25rem; margin-bottom: clamp(2rem, 5vw, 3.5rem); align-items: end; }
@media (min-width: 960px) { .head-row { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); } }
.head-cta { justify-self: start; }
@media (min-width: 960px) { .head-cta { justify-self: end; } }

.link { color: var(--accent-text); text-underline-offset: .25em; }
.link:hover { color: var(--accent); }

/* ---------- Rodapé do cliente ---------- */
.site-footer { border-top: 1px solid var(--line); padding-top: clamp(2.5rem, 6vw, 4.5rem); }
.foot-grid { display: grid; gap: 2.5rem; }
@media (min-width: 760px) { .foot-grid { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr); gap: 3rem; } }
.foot-desc { margin-top: 1rem; max-width: 26rem; color: var(--muted); font-size: .9375rem; }
.foot-h { font-size: .9375rem; font-weight: 600; letter-spacing: 0; margin-bottom: .75rem; color: var(--text); }
.foot-list { list-style: none; padding: 0; display: grid; gap: .1rem; }
.foot-list a { display: inline-block; padding: .3rem 0; color: var(--muted); text-decoration: none; overflow-wrap: anywhere; transition: color .15s; }
.foot-list a:hover { color: var(--accent-text); }
.foot-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 2rem;
  margin-top: clamp(2.5rem, 6vw, 4rem); padding-block: 1.5rem;
  border-top: 1px solid var(--line); color: var(--dim); font-size: .875rem;
}

/* ---------- Movimento reduzido ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}