/* ZeroHumano — sistema visual compartilhado */

:root {
  --bg: oklch(0.18 0.008 80);
  --bg-2: oklch(0.22 0.008 80);
  --bg-3: oklch(0.26 0.008 80);
  --line: oklch(0.32 0.008 80);
  --line-2: oklch(0.40 0.008 80);
  --ink: oklch(0.94 0.008 80);
  --ink-2: oklch(0.78 0.008 80);
  --ink-3: oklch(0.58 0.008 80);
  --accent: oklch(0.84 0.16 128);
  --accent-ink: oklch(0.22 0.05 128);
  --danger: oklch(0.72 0.14 28);

  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --serif: "Instrument Serif", "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  --r: 2px;
  --r-lg: 4px;

  --maxw: 1120px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Texture overlay — subtle grain */
body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  background-image: radial-gradient(oklch(1 0 0 / 0.015) 1px, transparent 1px);
  background-size: 3px 3px;
  z-index: 0;
}
main, header, footer, section { position: relative; z-index: 1; }

a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--line-2); }
a:hover { border-bottom-color: var(--accent); color: var(--accent); }

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 400; letter-spacing: -0.01em; margin: 0; }
h1 { font-size: clamp(44px, 6vw, 88px); line-height: 0.98; }
h2 { font-size: clamp(32px, 4vw, 56px); line-height: 1.05; }
h3 { font-size: clamp(22px, 2.2vw, 30px); line-height: 1.2; }
h4 { font-size: 18px; font-family: var(--sans); font-weight: 600; letter-spacing: 0.02em; text-transform: uppercase; color: var(--ink-2); }

p { margin: 0 0 1em; text-wrap: pretty; }
em { color: var(--accent); font-style: normal; font-family: var(--serif); }
small { font-size: 12px; color: var(--ink-3); }

code, kbd, .mono { font-family: var(--mono); }

/* Layout */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.wrap-tight { max-width: 820px; margin: 0 auto; padding: 0 28px; }

.rule {
  border: 0; border-top: 1px solid var(--line);
  margin: 0;
}

/* Nav */
.nav {
  border-bottom: 1px solid var(--line);
  background: color-mix(in oklab, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 50;
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 28px;
  max-width: var(--maxw); margin: 0 auto;
}
.logo {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--ink);
  border: 0;
  display: flex; align-items: center; gap: 8px;
}
.logo .dot {
  width: 8px; height: 8px; background: var(--accent); border-radius: 50%;
  box-shadow: 0 0 12px var(--accent);
}
.nav-links { display: flex; gap: 22px; font-family: var(--mono); font-size: 12px; }
.nav-links a { color: var(--ink-2); border: 0; text-transform: lowercase; letter-spacing: 0.02em; }
.nav-links a:hover { color: var(--accent); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::before { content: "▸ "; color: var(--accent); }

/* Eyebrow label */
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before {
  content: ""; width: 18px; height: 1px; background: var(--line-2);
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  font-family: var(--mono); font-size: 13px;
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.15s ease;
  text-transform: lowercase;
  letter-spacing: 0.02em;
}
.btn:hover { border-color: var(--ink-2); background: var(--bg-2); }
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
  font-weight: 600;
}
.btn-primary:hover {
  background: oklch(0.88 0.16 128);
  color: var(--accent-ink);
}
.btn-ghost { border-color: transparent; color: var(--ink-2); }
.btn-ghost:hover { color: var(--ink); background: transparent; border-color: var(--line); }
.btn-arrow::after { content: "→"; font-family: var(--sans); }

/* Card */
.card {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px;
  background: var(--bg-2);
}
.card-bare {
  border: 1px solid var(--line);
  padding: 24px;
  border-radius: var(--r-lg);
}

/* Dotted list */
.ticks { list-style: none; padding: 0; margin: 0; }
.ticks li {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}
.ticks li::before {
  content: "✓"; color: var(--accent); font-family: var(--mono); font-size: 13px;
}
.ticks li:last-child { border-bottom: 0; }

/* Terminal */
.terminal {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
  background: oklch(0.14 0.006 80);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 18px 22px;
  color: var(--ink-2);
  overflow: hidden;
}
.terminal .bar {
  display: flex; gap: 6px; padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 14px;
  align-items: center;
}
.terminal .bar span {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--line-2);
}
.terminal .bar .lbl {
  width: auto; height: auto; border-radius: 0; background: transparent;
  color: var(--ink-3); font-size: 11px; margin-left: 10px;
}
.prompt { color: var(--accent); }
.comment { color: var(--ink-3); }
.str { color: oklch(0.84 0.10 80); }
.key { color: var(--ink); }

/* Footer */
.foot {
  border-top: 1px solid var(--line);
  padding: 48px 28px 64px;
  margin-top: 96px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
}
.foot-inner {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px;
}
.foot a { color: var(--ink-2); border: 0; }
.foot a:hover { color: var(--accent); }

/* Utility */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 16px; }
.mt-2 { margin-top: 32px; }
.mt-3 { margin-top: 48px; }
.mt-4 { margin-top: 72px; }
.mt-5 { margin-top: 112px; }
.mb-0 { margin-bottom: 0; }
.center { text-align: center; }
.muted { color: var(--ink-3); }
.strong { color: var(--ink); }
.accent { color: var(--accent); }
.mono { font-family: var(--mono); }
.serif { font-family: var(--serif); }
.upper { text-transform: uppercase; letter-spacing: 0.08em; font-size: 11px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 800px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}

/* Section */
section.sec { padding: 96px 0; border-bottom: 1px solid var(--line); }
section.sec.tight { padding: 64px 0; }

/* Hero frame */
.hero {
  padding: 112px 0 96px;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 100% 0%, oklch(0.84 0.16 128 / 0.06), transparent 60%);
  pointer-events: none;
}

/* Micro badge */
.tag {
  display: inline-block;
  font-family: var(--mono); font-size: 11px;
  padding: 4px 10px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  color: var(--ink-2);
  letter-spacing: 0.04em;
}
.tag-accent { border-color: var(--accent); color: var(--accent); }

/* Form */
label { display: block; font-family: var(--mono); font-size: 12px; color: var(--ink-2); text-transform: lowercase; letter-spacing: 0.02em; margin-bottom: 8px; }
input[type="text"], input[type="email"], input[type="tel"], textarea {
  width: 100%;
  background: oklch(0.14 0.006 80);
  border: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  padding: 14px 16px;
  border-radius: var(--r);
  outline: none;
  transition: border-color 0.15s ease;
}
input:focus, textarea:focus { border-color: var(--accent); }
textarea { resize: vertical; min-height: 160px; font-family: var(--sans); line-height: 1.55; }
.field { margin-bottom: 20px; }
.char-count { font-family: var(--mono); font-size: 11px; color: var(--ink-3); text-align: right; margin-top: 6px; }

/* Pricing */
.price {
  font-family: var(--serif);
  font-size: 72px;
  line-height: 1;
  letter-spacing: -0.02em;
}
.price-sm { font-size: 40px; }
.strike { color: var(--ink-3); text-decoration: line-through; font-size: 18px; font-family: var(--mono); }

/* Table */
table.cmp {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono); font-size: 13px;
}
table.cmp th, table.cmp td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
table.cmp th { color: var(--ink-3); font-weight: 500; text-transform: lowercase; letter-spacing: 0.02em; }
table.cmp tr:hover td { background: var(--bg-2); }
table.cmp td.win { color: var(--accent); }

/* Numbered list */
ol.steps { list-style: none; padding: 0; counter-reset: step; }
ol.steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
ol.steps li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--mono);
  color: var(--ink-3);
  font-size: 13px;
  padding-top: 4px;
}

/* Dot divider */
.dots { color: var(--line-2); margin: 0 10px; }

/* Highlighted block */
.quote {
  border-left: 2px solid var(--accent);
  padding: 8px 0 8px 20px;
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.35;
  color: var(--ink);
}

/* Floating disclosure */
details.faq {
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
}
details.faq summary {
  cursor: pointer;
  list-style: none;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--sans); font-size: 17px; color: var(--ink);
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after {
  content: "+"; font-family: var(--mono); color: var(--ink-3);
}
details.faq[open] summary::after { content: "–"; color: var(--accent); }
details.faq .ans { margin-top: 14px; color: var(--ink-2); }

/* Status bar / timestamp */
.status-line {
  font-family: var(--mono); font-size: 11px; color: var(--ink-3);
  display: flex; gap: 14px; align-items: center;
}
.status-line .live::before {
  content: ""; display: inline-block;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  margin-right: 6px;
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Hero pre-title "system message" */
.sysmsg {
  font-family: var(--mono); font-size: 12px; color: var(--ink-3);
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
  margin-bottom: 48px;
}
.sysmsg .k { color: var(--accent); }