/* attuant.com — single-page manifesto.
   Reads tokens from colors_and_type.css. Paper / ink alternation.
   ============================================================= */

html, body { background: var(--paper-50); }
html { -webkit-text-size-adjust: 100%; }
body { overflow-x: hidden; }

/* Defensive: imagens nunca transbordam o container pai */
img { max-width: 100%; height: auto; }

/* Toque: mata o delay de ~300ms e o double-tap-zoom acidental em controles */
a, button, input, textarea, select { touch-action: manipulation; }

/* ── Layout helpers ───────────────────────────────────────── */
.wrap   { max-width: 1240px; margin: 0 auto; padding: 0 40px; }
.narrow { max-width: 880px; }
.row    { display: flex; }

/* Tabular numerics throughout */
.num, .mono { font-feature-settings: "tnum" 1, "lnum" 1; font-variant-numeric: tabular-nums lining-nums; }

/* Reusable atoms ─────────────────────────────────────────── */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--fg-muted);
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before {
  content: ""; display: inline-block;
  width: 24px; height: 1px; background: var(--fg-subtle);
  flex-shrink: 0;
}
.eyebrow-dark { color: var(--ink-300); }
.eyebrow-dark::before { background: var(--ink-500); }

.ochre, .stop { color: var(--ochre-500); }
.stop { display: inline-block; margin-left: -0.05em; }

.mono-tag {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--fg-subtle);
}
.mono-tag-dark { color: var(--ink-300); }

.dot {
  display: inline-block; width: 5px; height: 5px; border-radius: 999px;
  background: var(--signal-positive); vertical-align: middle;
  margin: 0 8px 2px;
}

/* ── Header ───────────────────────────────────────────────── */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 80;
  background: rgba(10, 9, 8, 0.72);
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  border-bottom: 1px solid rgba(255, 248, 235, 0.06);
  transition: background var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out);
  color: var(--paper-50);
}
.site-header.is-light {
  background: rgba(250, 248, 244, 0.78);
  border-bottom-color: var(--paper-200);
  color: var(--ink-1000);
}
.site-header-inner {
  max-width: 1240px; margin: 0 auto;
  padding: 18px 40px;
  display: grid; grid-template-columns: 1fr auto 1fr;
  align-items: center; gap: 32px;
}
.site-logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.logo-stack { display: inline-grid; }
.logo-stack img {
  grid-area: 1 / 1;
  height: 18px; display: block;
  transition: opacity var(--dur-base) var(--ease-out);
}
.logo-on-paper { opacity: 0; }
.site-header.is-light .logo-on-ink { opacity: 0; }
.site-header.is-light .logo-on-paper { opacity: 1; }
.site-logo .v {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.1em; opacity: 0.5;
  padding: 3px 6px; border: 1px solid currentColor; border-radius: 2px;
}
.site-nav {
  display: flex; gap: 28px; justify-content: center;
}
.site-nav a {
  font-family: var(--font-sans); font-size: 13px; font-weight: 500;
  text-decoration: none; color: inherit; opacity: 0.78;
  transition: opacity var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.site-nav a:hover { opacity: 1; color: var(--ochre-400); }
.site-nav a.is-active { opacity: 1; }
.site-header.is-light .site-nav a:hover { color: var(--ochre-700); }

.header-end { justify-self: end; display: flex; align-items: center; gap: 18px; }
.header-status {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em;
  text-transform: uppercase; opacity: 0.7; display: inline-flex; align-items: center;
}

/* ── Language switcher ───────────────────────────────────── */
.lang-switch {
  display: flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em;
  text-transform: uppercase;
}
.lang-switch-item { color: inherit; opacity: 0.6; text-decoration: none; }
.lang-switch-item:hover { opacity: 1; }
.lang-switch-item.is-active { opacity: 1; font-weight: 500; pointer-events: none; }
.lang-switch-sep { opacity: 0.35; }

/* ── Section base ─────────────────────────────────────────── */
section { position: relative; }
.section-hd {
  display: grid; grid-template-columns: 1fr;
  gap: 48px;
  padding-bottom: 72px;
}
.roman {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.2em; color: var(--fg-subtle);
}

/* ── HERO ─────────────────────────────────────────────────── */
.hero {
  background: var(--ink-1000);
  color: var(--paper-50);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex; flex-direction: column;
  position: relative;
  overflow: hidden;
}
/* tactile paper-grain on ink */
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    radial-gradient(rgba(255, 248, 235, 0.022) 1px, transparent 1px),
    radial-gradient(rgba(255, 248, 235, 0.012) 1px, transparent 1px);
  background-size: 3px 3px, 7px 7px;
  background-position: 0 0, 1px 2px;
  mix-blend-mode: screen;
  opacity: 0.9;
}
.hero-inner {
  position: relative; z-index: 1;
  max-width: 1240px; margin: 0 auto; padding: 180px 40px 56px;
  flex: 1; display: flex; flex-direction: column;
  width: 100%;
}
.hero-meta-top {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 80px;
}
.hero-display {
  font-family: var(--font-display);
  font-size: clamp(72px, 9.5vw, 156px);
  font-weight: 400;
  line-height: 0.94;
  letter-spacing: -0.03em;
  margin: 0;
  color: var(--paper-50);
  max-width: 14ch;
}
.hero-display .strike {
  /* ochre-tinged crossbar that pulses very gently */
  color: var(--ochre-400);
}
.hero-lede {
  font-family: var(--font-sans);
  font-size: 22px;
  line-height: 1.45;
  letter-spacing: -0.005em;
  color: var(--ink-300);
  max-width: 38ch;
  margin: 56px 0 0;
}

.hero-bottom {
  position: relative; z-index: 1;
  border-top: 1px solid rgba(255, 248, 235, 0.08);
  padding-top: 24px;
  margin-top: auto;
}
.hero-bottom-inner {
  max-width: 1240px; margin: 0 auto; padding: 0 40px 40px;
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.hero-meta-cell {
  display: flex; flex-direction: column; gap: 14px;
  padding-right: 24px;
  position: relative;
}
.hero-meta-cell + .hero-meta-cell::before {
  content: ""; position: absolute; left: -16px; top: 4px; bottom: 4px;
  width: 1px; background: rgba(255, 248, 235, 0.08);
}
.hero-meta-cell .k {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-400);
}
.hero-meta-cell .v {
  font-family: var(--font-sans); font-size: 15px; font-weight: 400;
  color: var(--paper-50); line-height: 1.3;
}
.hero-meta-cell .v.mono { font-family: var(--font-mono); font-size: 14px; }

/* gentle live indicator */
.live-pip {
  width: 8px; height: 8px; border-radius: 999px;
  background: var(--ochre-400); display: inline-block;
  margin-right: 10px; box-shadow: 0 0 0 0 rgba(212, 173, 92, 0.55);
  animation: pulse 2.4s var(--ease-out) infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(212, 173, 92, 0.5); }
  70%  { box-shadow: 0 0 0 12px rgba(212, 173, 92, 0); }
  100% { box-shadow: 0 0 0 0 rgba(212, 173, 92, 0); }
}

/* ── Section: The word (light, museum spec) ───────────────── */
.s-word {
  background: var(--paper-50);
  color: var(--ink-1000);
  padding: 128px 0 96px;
}
.word-grid {
  display: grid; grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  border-top: 1px solid var(--ink-1000);
  padding-top: 48px;
}
.word-name {
  font-family: var(--font-display);
  font-size: clamp(80px, 12vw, 200px);
  font-weight: 400;
  line-height: 0.92;
  letter-spacing: -0.03em;
  margin: 0; color: var(--ink-1000);
}
.word-name em {
  font-style: italic; color: var(--fg-muted);
  font-weight: 400;
}
.word-defs { display: flex; flex-direction: column; gap: 28px; padding-top: 8px; }
.word-def-row {
  display: grid; grid-template-columns: 120px 1fr;
  gap: 24px; align-items: start;
  padding: 18px 0; border-top: 1px solid var(--paper-300);
}
.word-def-row:first-child { border-top: 0; padding-top: 0; }
.word-def-row .k {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--fg-subtle);
  padding-top: 3px;
}
.word-def-row .v {
  font-family: var(--font-sans); font-size: 18px; line-height: 1.45;
  color: var(--ink-1000);
}
.word-def-row .v em {
  font-family: var(--font-display); font-style: italic;
  font-size: 22px; color: var(--ink-700);
}

.pron {
  font-family: var(--font-display); font-size: 28px;
  letter-spacing: -0.005em; color: var(--ink-1000);
}
.pron .syl-stress { color: var(--ochre-600); font-weight: 500; }

/* ── Section: Position (recommends vs acts) ───────────────── */
.s-position {
  background: var(--ink-1000);
  color: var(--paper-50);
  padding: 128px 0;
  border-top: 1px solid var(--ink-700);
  border-bottom: 1px solid var(--ink-700);
}
.s-position .section-hd { color: var(--paper-50); padding-bottom: 96px; }
.s-position .roman { color: var(--ink-400); }
.s-position .section-hd h2 {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 64px); font-weight: 400;
  line-height: 1.05; letter-spacing: -0.02em; margin: 16px 0 0;
  max-width: 18ch;
}
.split {
  display: grid; grid-template-columns: 1fr 1px 1fr;
  gap: 48px;
  border-top: 1px solid var(--ink-700);
  padding-top: 56px;
}
.split-rule { background: var(--ink-700); width: 1px; }
.split-col { display: flex; flex-direction: column; gap: 24px; }
.split-col h3 {
  font-family: var(--font-display);
  font-size: 56px; font-weight: 400; letter-spacing: -0.02em;
  margin: 0; line-height: 1;
}
.split-col.them h3 { color: var(--ink-400); }
.split-col.us h3 { color: var(--paper-50); }
.split-col.us h3 .stop { color: var(--ochre-500); }
.split-col ul {
  list-style: none; padding: 0; margin: 16px 0 0;
  display: flex; flex-direction: column; gap: 0;
}
.split-col li {
  font-family: var(--font-sans); font-size: 19px; line-height: 1.4;
  padding: 18px 0; border-top: 1px solid rgba(255, 248, 235, 0.08);
  display: flex; gap: 16px; align-items: baseline;
}
.split-col li .lc {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0;
  color: var(--ink-400); flex-shrink: 0;
  min-width: 44px;
  font-variant-numeric: tabular-nums lining-nums;
  font-feature-settings: "tnum" 1, "lnum" 1;
  position: relative; top: -1px;
}
.split-col.them { color: var(--ink-300); }
.split-col.us li { color: var(--paper-50); }

/* ── Section: Principles ──────────────────────────────────── */
.s-principles {
  background: var(--paper-50);
  color: var(--ink-1000);
  padding: 128px 0;
}
.s-principles .section-hd h2 {
  font-family: var(--font-display);
  font-size: clamp(48px, 6.4vw, 88px); font-weight: 400;
  line-height: 0.98; letter-spacing: -0.025em; margin: 16px 0 0;
  max-width: 14ch;
}
.principles {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--ink-1000);
}
.principle {
  padding: 40px 32px 56px 0;
  border-right: 1px solid var(--paper-300);
  position: relative;
  display: flex; flex-direction: column;
}
.principle:last-child { border-right: 0; padding-right: 0; }
.principle:not(:first-child) { padding-left: 32px; }
.principle .num {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0;
  color: var(--ochre-600);
  font-variant-numeric: tabular-nums lining-nums;
  font-feature-settings: "tnum" 1, "lnum" 1;
  margin-bottom: 28px;
  display: flex; align-items: center; gap: 12px;
}
.principle .num::after {
  content: ""; flex: 1; height: 1px; background: var(--paper-300);
}
.principle h3 {
  font-family: var(--font-display);
  font-size: 32px; font-weight: 400; line-height: 1.05;
  letter-spacing: -0.015em; margin: 0 0 20px;
  max-width: 14ch;
}
.principle p {
  font-family: var(--font-sans); font-size: 16px; line-height: 1.55;
  color: var(--fg-muted); margin: 0; max-width: 36ch;
}
.principle .ft {
  margin-top: auto; padding-top: 24px;
  border-top: 1px solid var(--paper-200);
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--fg-subtle);
  display: flex; gap: 8px; align-items: baseline;
}

/* ── Section: The Act (BIG breit cut) ─────────────────────── */
.s-act {
  background: var(--ink-1000);
  color: var(--paper-50);
  padding: 200px 0 220px;
  position: relative; overflow: hidden;
}
.s-act::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    radial-gradient(rgba(255, 248, 235, 0.022) 1px, transparent 1px);
  background-size: 3px 3px;
  mix-blend-mode: screen;
}
.s-act .wrap { position: relative; z-index: 1; }
.act-meta {
  display: flex; justify-content: space-between; align-items: baseline;
  border-bottom: 1px solid var(--ink-700);
  padding-bottom: 20px; margin-bottom: 80px;
}
.act-display {
  font-family: var(--font-display-wide), var(--font-display);
  font-size: clamp(44px, 11vw, 150px);
  font-weight: 400; line-height: 0.9;
  letter-spacing: -0.03em;
  margin: 0; color: var(--paper-50);
  overflow-wrap: break-word;
}
.act-display .stop { color: var(--ochre-400); }
.act-foot {
  border-top: 1px solid var(--ink-700);
  margin-top: 80px; padding-top: 32px;
}
.act-foot p {
  font-family: var(--font-display); font-style: italic;
  font-size: 22px; line-height: 1.4; color: var(--ink-300);
  margin: 0; max-width: 38ch;
}
.act-foot .k {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ink-400);
}
.act-foot .v {
  font-family: var(--font-sans); font-size: 14px; color: var(--paper-50);
  margin-top: 8px;
}

/* ── Section: Engage (pre-launch) ─────────────────────────── */
.s-engage {
  background: var(--paper-50);
  color: var(--ink-1000);
  padding: 128px 0 96px;
}
.engage-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 96px;
  border-top: 1px solid var(--ink-1000);
  padding-top: 56px;
}
.engage-lead h2 {
  font-family: var(--font-display);
  font-size: clamp(48px, 6.4vw, 88px); font-weight: 400;
  line-height: 0.98; letter-spacing: -0.025em; margin: 24px 0;
  max-width: 14ch;
}
.engage-lead p {
  font-family: var(--font-sans); font-size: 18px; line-height: 1.5;
  color: var(--fg-muted); max-width: 44ch; margin: 0 0 40px;
}
.engage-form {
  background: var(--paper-100);
  border: 1px solid var(--paper-300);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex; flex-direction: column; gap: 20px;
}
.engage-form .field {
  display: flex; flex-direction: column; gap: 8px;
}
.engage-form label {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--fg-subtle);
}
.engage-form input, .engage-form textarea, .engage-form select {
  font-family: var(--font-sans); font-size: 15px;
  background: var(--paper-50); color: var(--ink-1000);
  border: 1px solid var(--paper-300); border-radius: var(--radius-sm);
  padding: 12px 14px;
  transition: border-color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
}
.engage-form input:focus, .engage-form textarea:focus, .engage-form select:focus {
  outline: none;
  border-color: var(--ink-700);
  background: var(--paper-50);
}
.engage-form textarea { resize: vertical; min-height: 96px; }
.engage-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.engage-form .help {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em;
  color: var(--fg-subtle);
  display: flex; justify-content: space-between; align-items: center;
}

.btn-primary {
  font-family: var(--font-sans); font-size: 14px; font-weight: 500;
  background: var(--ink-1000); color: var(--paper-50);
  border: 0; border-radius: var(--radius-md);
  padding: 14px 22px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 12px;
  transition: background var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
  align-self: flex-start;
}
.btn-primary:hover { background: var(--ink-800); }
.btn-primary:active { transform: scale(0.96); }
.btn-primary .arr { color: var(--ochre-400); transition: transform var(--dur-fast) var(--ease-out); }
.btn-primary:hover .arr { transform: translateX(3px); }

.engage-info {
  display: flex; flex-direction: column; gap: 24px;
  margin-top: 16px;
}
.engage-info-row {
  display: grid; grid-template-columns: 140px 1fr;
  gap: 16px; align-items: baseline;
  padding: 16px 0; border-bottom: 1px solid var(--paper-200);
}
.engage-info-row:first-child { border-top: 1px solid var(--paper-300); padding-top: 18px; }
.engage-info-row .k {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--fg-subtle);
}
.engage-info-row .v {
  font-family: var(--font-sans); font-size: 16px;
}
.engage-info-row .v a { color: var(--ink-1000); text-decoration: underline;
  text-decoration-color: var(--paper-300); text-underline-offset: 0.25em; }
.engage-info-row .v a:hover { color: var(--ochre-700); text-decoration-color: currentColor; }

.notice {
  background: var(--paper-100);
  border: 1px solid var(--paper-300);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  display: flex; gap: 14px; align-items: center;
  font-family: var(--font-sans); font-size: 13px;
  color: var(--fg-muted);
  margin-bottom: 16px;
}
.notice .pip {
  width: 7px; height: 7px; border-radius: 999px;
  background: var(--ochre-500); flex-shrink: 0;
}

/* ── Page header (inner pages, light) ─────────────────────── */
.page-header {
  background: var(--paper-50); color: var(--ink-1000);
  padding: 176px 0 88px;
  border-bottom: 1px solid var(--ink-1000);
}
.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 72px); font-weight: 400;
  line-height: 1.02; letter-spacing: -0.02em;
  margin: 20px 0 24px; max-width: 16ch;
}
.page-header .lede {
  font-family: var(--font-sans); font-size: 19px; line-height: 1.5;
  color: var(--fg-muted); max-width: 46ch; margin: 0;
}
.back-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--fg-subtle); text-decoration: none;
  margin-bottom: 32px;
}
.back-link:hover { color: var(--ochre-600); }

/* ── Legal documents (terms, privacy) ─────────────────────── */
.legal-body { max-width: 760px; }
.legal-updated {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--fg-subtle); margin: 0 0 48px;
}
.legal-body h2 {
  font-family: var(--font-display); font-size: 28px; font-weight: 500;
  letter-spacing: -0.01em; line-height: 1.2; margin: 48px 0 16px;
}
.legal-body h2:first-of-type { margin-top: 0; }
.legal-body h3 {
  font-family: var(--font-sans); font-size: 17px; font-weight: 600;
  margin: 28px 0 10px; color: var(--ink-1000);
}
.legal-body p { color: var(--fg-muted); margin: 0 0 16px; }
.legal-body ul { color: var(--fg-muted); margin: 0 0 16px; padding-left: 22px; }
.legal-body li { margin: 0 0 8px; }
.legal-body a { color: var(--ink-1000); text-decoration-color: var(--paper-300); text-underline-offset: 0.2em; }
.legal-body a:hover { color: var(--ochre-700); text-decoration-color: currentColor; }
.legal-body strong { color: var(--ink-1000); font-weight: 600; }

/* ── Status rows / dots ───────────────────────────────────── */
.status-row {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--fg-muted);
}
.dot-live { background: var(--signal-positive); }
.dot-testing { background: var(--signal-warning); }

/* ── Arrow links ──────────────────────────────────────────── */
.arrow-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-sans); font-size: 16px; font-weight: 500;
  color: var(--fg); text-decoration: none;
}
.arrow-link .arr { color: var(--ochre-500); transition: transform var(--dur-fast) var(--ease-out); }
.arrow-link:hover { color: var(--ochre-600); }
.arrow-link:hover .arr { transform: translateX(3px); }

/* ── Header: ghost button ─────────────────────────────────── */
.btn-ghost {
  font-family: var(--font-sans); font-size: 13px; font-weight: 500;
  color: inherit; text-decoration: none; opacity: 0.85;
  /* zera o botão nativo — .btn-ghost vale para <a> e <button> */
  background: transparent; cursor: pointer;
  border: 1px solid currentColor; border-radius: var(--radius-sm);
  padding: 8px 14px;
  transition: opacity var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.btn-ghost:hover { opacity: 1; background: rgba(255, 248, 235, 0.08); }
.site-header.is-light .btn-ghost:hover { background: rgba(10, 9, 8, 0.06); }

/* ── Brands grid (home strip + overview) ──────────────────── */
.s-products { background: var(--paper-50); color: var(--ink-1000); padding: 96px 0; }
.product-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
  border-top: 1px solid var(--ink-1000); padding-top: 56px;
}
.product-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.dot-operating { background: var(--signal-info); }
.challenge-layer {
  background: var(--ink-1000); color: var(--paper-50);
  padding: var(--space-8) var(--space-7);
  margin: 96px 0 64px;
  display: flex; flex-direction: column; gap: 20px;
}
.challenge-layer .challenge-lead {
  font-family: var(--font-display); font-size: clamp(26px, 3.2vw, 38px);
  font-weight: 400; line-height: 1.2; letter-spacing: -0.015em;
  color: var(--paper-50); margin: 0; max-width: 26ch;
}
.challenge-layer p:not(.challenge-lead) {
  font-family: var(--font-sans); font-size: 18px; line-height: 1.55;
  color: var(--ink-300); margin: 0; max-width: 58ch;
}
.attuant-tail {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--fg-subtle); margin: 0; padding-top: 24px; border-top: 1px solid var(--paper-300);
}
.brand-strip { display: flex; flex-direction: column; }
.brand-strip-row {
  display: flex; align-items: center; gap: 32px;
  padding: 28px 0; border-top: 1px solid var(--paper-300);
  text-decoration: none; color: var(--fg);
}
.brand-strip-row:first-child { border-top: 0; }
.brand-strip-name {
  font-family: var(--font-display); font-size: 24px; font-weight: 500;
  letter-spacing: -0.01em; width: 150px; flex-shrink: 0; color: var(--ink-1000);
}
.brand-strip-row .status-row { width: 190px; flex-shrink: 0; }
.brand-strip-line { flex: 1; color: var(--fg-muted); font-size: 16px; }
.brand-strip-row .arr { color: var(--ochre-500); transition: transform var(--dur-fast) var(--ease-out); }
.brand-strip-row:hover .brand-strip-name { color: var(--ochre-600); }
.brand-strip-row:hover .arr { transform: translateX(3px); }
.brand-strip-row[data-reveal]:nth-child(2) { transition-delay: 60ms; }
.brand-strip-row[data-reveal]:nth-child(3) { transition-delay: 120ms; }
.brand-strip-row[data-reveal]:nth-child(4) { transition-delay: 180ms; }
@media (max-width: 720px) {
  .brand-strip-row { flex-wrap: wrap; gap: 8px 20px; }
  .brand-strip-name, .brand-strip-row .status-row { width: auto; }
}
.product-card {
  background: var(--bg-raised); border: 1px solid var(--paper-300);
  border-radius: var(--radius-md); padding: var(--space-6);
  display: flex; flex-direction: column; gap: 20px;
}
.product-card h3 {
  font-family: var(--font-display); font-size: 32px; font-weight: 400;
  margin: 0; letter-spacing: -0.015em;
}
.product-card p { color: var(--fg-muted); font-size: 16px; line-height: 1.55; margin: 0; max-width: 42ch; }
.product-card .cta-row {
  margin-top: auto; display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding-top: 20px; border-top: 1px solid var(--paper-200); flex-wrap: wrap;
}
.cta-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; justify-content: space-between; }

/* ── Teaser sections (home, platform, roadmap) ────────────── */
.s-teaser { background: var(--paper-50); padding: 96px 0; border-top: 1px solid var(--paper-300); }
.s-teaser.alt { background: var(--paper-100); }
.s-teaser .lede.narrow { color: var(--fg-muted); font-size: 17px; line-height: 1.6; margin: 0 0 24px; max-width: 60ch; }

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
  background: var(--ink-1000);
  color: var(--paper-100);
  padding: 80px 0 32px;
  position: relative; overflow: hidden;
}
.site-footer::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(255,248,235,0.018) 1px, transparent 1px);
  background-size: 3px 3px;
  mix-blend-mode: screen;
}
.site-footer .wrap { position: relative; z-index: 1; }
.footer-top {
  display: flex; align-items: end; justify-content: space-between;
  padding-bottom: 56px; border-bottom: 1px solid var(--ink-700);
  gap: 40px;
}
.footer-tagline {
  font-family: var(--font-display-wide), var(--font-display);
  font-size: clamp(64px, 9vw, 132px); font-weight: 400;
  letter-spacing: -0.03em; line-height: 0.86;
  margin: 0; color: var(--paper-50);
}
.footer-tagline .stop { color: var(--ochre-400); }
.footer-logo img { height: 22px; display: block; }

.footer-grid {
  display: grid; grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: 32px;
  padding: 56px 0;
}
.footer-col { display: flex; flex-direction: column; gap: 8px; }
.footer-col p { margin: 0 0 4px; }
.footer-col .h {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ink-400);
  margin-bottom: 8px;
}
.footer-col p, .footer-col a, .footer-col .cookie-prefs {
  font-family: var(--font-sans); font-size: 14px;
  color: var(--paper-100); text-decoration: none;
  line-height: 1.5; margin: 0;
}
.footer-col .cookie-prefs {
  background: none; border: 0; padding: 0;
  text-align: left; cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out);
}
.footer-col a:hover, .footer-col .cookie-prefs:hover { color: var(--ochre-400); }
.footer-bottom {
  display: flex; justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--ink-700);
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--ink-400);
  gap: 24px; flex-wrap: wrap;
}

/* ── Cookie consent bar ───────────────────────────────────────
   Ink surface, mesmo material do header. Recusar e aceitar têm o
   mesmo peso: a recusa não pode custar mais que o aceite. */
.cookie-bar {
  position: fixed; inset: auto 0 0 0; z-index: 90;
  background: rgba(10, 9, 8, 0.94);
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  border-top: 1px solid rgba(255, 248, 235, 0.12);
  color: var(--paper-50);
  padding: 20px 0;
  opacity: 0; transform: translateY(100%);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}
.cookie-bar.is-in { opacity: 1; transform: translateY(0); }
.cookie-bar-inner { display: flex; align-items: center; gap: 32px; }
.cookie-bar-text { flex: 1; min-width: 0; }
.cookie-bar-text strong {
  display: block;
  font-family: var(--font-sans); font-size: 13px; font-weight: 500;
  margin-bottom: 6px;
}
.cookie-bar-text p {
  margin: 0;
  font-family: var(--font-sans); font-size: 13px; line-height: 1.55;
  color: var(--paper-100);
}
.cookie-bar-text a { color: var(--ochre-400); text-underline-offset: 3px; }
.cookie-bar-notice { margin-top: 8px !important; color: var(--ochre-400); }
.cookie-bar-actions { display: flex; gap: 12px; flex-shrink: 0; }
@media (max-width: 720px) {
  .cookie-bar-inner { flex-direction: column; align-items: stretch; gap: 16px; }
  .cookie-bar-actions .btn-ghost { flex: 1; text-align: center; }
}

/* ── Reveal-on-scroll: subtle 8–16px translate + opacity ──── */
[data-reveal] {
  opacity: 0; transform: translateY(12px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
}
[data-reveal].in {
  opacity: 1; transform: translateY(0);
}

/* ── Press feedback: scale tátil 0.96 nos controles tocáveis ──
   (transições property-specific — nunca `transition: all`) */
.btn-ghost, .arrow-link, .back-link, .cta-row a {
  transition: color var(--dur-fast) var(--ease-out),
              opacity var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.btn-ghost:active,
.arrow-link:active,
.back-link:active,
.cta-row a:active { transform: scale(0.96); }
/* Linha larga: press por opacidade em vez de scale (scale ficaria estranho) */
.brand-strip-row:active { opacity: 0.72; }

/* ── Text-wrap: títulos balanceados, corpo sem órfãs ────────── */
.hero-display, .page-header h1, .word-name,
.s-position .section-hd h2, .s-principles .section-hd h2,
.act-display, .footer-tagline { text-wrap: balance; }
.hero-lede, .page-header .lede, .principle p, .word-def-row .v { text-wrap: pretty; }

/* ── Responsive ─────────────────────────────────────────────
   Cascata mobile-first: 960px (tablet) → 640px (phone) → 420px (small phone).
   ───────────────────────────────────────────────────────── */

@media (max-width: 960px) {
  /* Header: logo + actions on row 1, nav wraps to its own row below.
     (No hamburger — the three links are short and stay reachable.) */
  .site-header-inner {
    grid-template-columns: 1fr auto;
    grid-template-areas: "logo end" "nav nav";
    gap: 10px 16px;
  }
  .site-logo   { grid-area: logo; }
  .header-end  { grid-area: end; }
  .site-nav {
    grid-area: nav;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 8px 20px;
    padding-top: 2px;
  }
  .product-grid { grid-template-columns: 1fr; }
  .product-grid.cols-3 { grid-template-columns: 1fr; }
  .word-def-row { grid-template-columns: 1fr; gap: 6px; }
  .word-def-row .k { padding-top: 0; }
  .challenge-layer { padding: var(--space-7) var(--space-5); margin: 64px 0 48px; }

  /* Section heading: roman vira label inline acima do h2 */
  .section-hd {
    grid-template-columns: 1fr;
    gap: 16px;
    padding-bottom: 56px;
  }

  /* Hero: padding topo menor (180 → 140) */
  .hero-inner { padding: 140px 40px 48px; }
  .hero-meta-top { margin-bottom: 56px; }

  /* Seções: respiro reduzido */
  .s-position { padding: 96px 0; }
  .s-position .section-hd { padding-bottom: 64px; }
  .s-principles { padding: 96px 0; }

  /* Position: split em 1col */
  .split { grid-template-columns: 1fr; gap: 40px; padding-top: 40px; }
  .split-rule { display: none; }

  /* Principles: 1col com padding consistente */
  .principles { grid-template-columns: 1fr; }
  .principle {
    border-right: 0;
    border-bottom: 1px solid var(--paper-300);
    padding: 32px 0;
  }
  .principle:not(:first-child) { padding-left: 0; }
  .principle:last-child { border-bottom: 0; padding-bottom: 0; }

  /* Footer: top empilha vertical */
  .footer-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 32px;
    padding-bottom: 40px;
  }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; padding: 40px 0; }

  /* CSS órfão (caso seja reativado): mantém colapso */
  .word-grid { grid-template-columns: 1fr; }
  .engage-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-bottom-inner { grid-template-columns: 1fr 1fr; }

  /* Alvos de toque ≥40–44px no mobile — sem inchar o header
     (área ampliada via padding + margem negativa onde preciso) */
  .site-nav a { display: inline-flex; align-items: center; min-height: 44px; }
  .lang-switch { gap: 4px; }
  .lang-switch-item { padding: 12px 8px; margin: -12px -2px; }
  .footer-col a, .footer-col .cookie-prefs {
    display: inline-flex; align-items: center;
    min-height: 44px; padding: 8px 0;
  }
  .back-link, .arrow-link, .cta-row a { min-height: 44px; }
  .btn-ghost { padding: 12px 16px; }
}

@media (max-width: 640px) {
  /* Container: padding lateral menor */
  .wrap { padding: 0 24px; }
  .site-header-inner { padding: 14px 24px; gap: 12px; }
  .hero-inner { padding: 112px 24px 40px; }
  .hero-bottom-inner { padding: 0 24px 32px; }

  /* Hero: meta topo mais compacto, lede menor */
  .hero-meta-top { margin-bottom: 40px; }
  .hero-lede { font-size: 18px; margin-top: 40px; max-width: 100%; }
  .hero-display { max-width: 100%; }

  /* Seções: padding vertical menor */
  .s-position { padding: 72px 0; }
  .s-position .section-hd { padding-bottom: 48px; }
  .s-principles { padding: 72px 0; }
  .section-hd { padding-bottom: 40px; gap: 12px; }

  /* Position h2: clamp respira; "Recommends./Acts." reduz */
  .s-position .section-hd h2 { font-size: clamp(28px, 7vw, 40px); }
  .split { gap: 32px; padding-top: 32px; }
  .split-col h3 { font-size: clamp(40px, 10vw, 56px); }
  .split-col li { font-size: 17px; padding: 16px 0; gap: 12px; }
  .split-col li .lc { min-width: 36px; }

  /* Principles: padding e tipografia */
  .s-principles .section-hd h2 { font-size: clamp(36px, 8vw, 48px); }
  .principle h3 { font-size: clamp(24px, 6vw, 32px); margin-bottom: 16px; }
  .principle p { font-size: 15px; }
  .principle .num { margin-bottom: 20px; }

  /* Footer: grid 1col, paddings menores */
  .site-footer { padding: 56px 0 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding: 32px 0; }
  .footer-top { padding-bottom: 32px; gap: 24px; }
  .footer-tagline { font-size: clamp(48px, 14vw, 80px); }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding-top: 24px;
    font-size: 10px;
  }
}

@media (max-width: 420px) {
  /* Container: padding lateral mínimo */
  .wrap { padding: 0 20px; }
  .site-header-inner { padding: 12px 20px; }
  .hero-inner { padding: 96px 20px 32px; }

  .header-status { font-size: 10px; }
  .lang-switch { font-size: 10px; gap: 4px; }

  /* Hero: clamp mínimo menor para caber em 320–375px */
  .hero-display { font-size: clamp(56px, 14vw, 72px); line-height: 0.96; }
  .hero-lede { font-size: 17px; }

  /* Section h2: ainda menor */
  .s-position .section-hd h2 { font-size: clamp(24px, 7vw, 32px); }
  .s-principles .section-hd h2 { font-size: clamp(32px, 8vw, 40px); }

  /* Footer: tagline cabe */
  .footer-tagline { font-size: clamp(40px, 14vw, 64px); }
  .footer-bottom { font-size: 9px; letter-spacing: 0.04em; }
}

/* ── Movimento reduzido — respeita a preferência do sistema ──── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  /* nunca deixar o reveal esconder conteúdo se a animação for cortada */
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .live-pip { animation: none !important; }
}