/* ═══════════════════════════════════════════════════════════════
   ADA CORE · Swiss-technical site
   A scrolling document built on a visible structural grid:
   hairline rules, mono indices, flat surfaces, one signal accent.
   No starfield, no glow, no gradient mesh, no emoji.
   ═══════════════════════════════════════════════════════════════ */

/* ── Shared scaffolding ─────────────────────────────────────────── */
.wrap { width: 100%; max-width: var(--measure); margin: 0 auto; padding: 0 var(--pad-x); }

/* Mono technical label: "02 / Diferenciais" */
.label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.label-n { color: var(--signal); }

/* ── Buttons & links (flat; hover inverts, never lifts) ─────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.6rem;
  border-radius: 2px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: background var(--t-base) var(--ease),
              color var(--t-base) var(--ease),
              border-color var(--t-base) var(--ease);
}
.btn svg { width: 16px; height: 16px; }

.btn-signal { background: var(--signal); color: var(--paper); }
.btn-signal:hover { background: var(--ink); color: var(--paper); }

.btn-outline { border: 1.5px solid var(--ink); color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--paper); }

/* Underlined text link with a moving arrow */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 5px;
  text-decoration-thickness: 1.5px;
  text-decoration-color: var(--rule-strong);
  transition: color var(--t-base) var(--ease);
}
.link-arrow svg { width: 15px; height: 15px; transition: transform var(--t-base) var(--ease); }
.link-arrow:hover { color: var(--signal); text-decoration-color: var(--signal); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ── Header ──────────────────────────────────────────────────────
   Fixed band on paper, single bottom hairline. */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 1000;
  display: flex;
  align-items: center;
  background: rgba(243,241,234,0.86);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.14em;
  color: var(--ink);
}
.wordmark .mark {        /* the one accent on the logo: a filled square */
  width: 11px; height: 11px;
  background: var(--signal);
  flex-shrink: 0;
}

.site-nav { display: flex; align-items: center; gap: 2rem; }
.nav-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  padding: 0.25rem 0;
  border-bottom: 1.5px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.nav-link:hover,
.nav-link[aria-current="true"] { color: var(--ink); border-bottom-color: var(--signal); }

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 0.5rem; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--ink); }

/* Drawer (mobile) */
.drawer {
  position: fixed;
  top: var(--header-h); right: 0;
  width: min(78vw, 300px);
  height: calc(100vh - var(--header-h));
  background: var(--paper);
  border-left: 1px solid var(--rule);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: 1.75rem var(--pad-x);
  gap: 1.25rem;
  transform: translateX(100%);
  transition: transform var(--t-base) var(--ease);
}
.drawer.open { transform: translateX(0); }
.drawer .nav-link { font-size: 0.95rem; }

/* ── Section frame ───────────────────────────────────────────────
   Every section opens with a top hairline + mono index. */
main { padding-top: var(--header-h); }

.section { border-top: 1px solid var(--rule); padding: clamp(3.5rem, 8vw, 7rem) 0; }
.section:first-of-type { border-top: none; }

.section-head { max-width: 60ch; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head .label { display: block; margin-bottom: 1.25rem; }
.section-title {
  font-size: clamp(1.9rem, 3.6vw, 2.9rem);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.025em;
}
.section-sub {
  margin-top: 1rem;
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  color: var(--ink-soft);
  max-width: 56ch;
}

/* ── Hero ────────────────────────────────────────────────────────
   Left-aligned, type-led. No background art — whitespace is the art. */
.hero {
  min-height: calc(100vh - var(--header-h));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(3rem, 9vh, 7rem) 0 0;
  border-top: none;
}
.hero .label { margin-bottom: 1.75rem; }
.hero-title {
  font-size: clamp(2.75rem, 7.5vw, 6rem);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.035em;
  color: var(--ink);
  max-width: 16ch;
}
.hero-title .accent { color: var(--signal); }   /* the one-word emphasis, in accent — not italic */
.hero-sub {
  margin-top: 1.75rem;
  font-size: clamp(1.1rem, 1.7vw, 1.4rem);
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: 52ch;
}
.hero-actions { margin-top: 2.5rem; display: flex; align-items: center; gap: 1.75rem; flex-wrap: wrap; }

/* Partner wordmarks as a quiet mono baseline row */
.hero-partners {
  margin-top: clamp(3rem, 9vh, 6rem);
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
}
.hero-partners b { color: var(--ink); font-weight: 600; }

/* ── Diferenciais — ecosystem of blocks: central illustration with
   numbered callouts flanking it, then a full-bleed dark band ──────── */
.accent { color: var(--signal); }
.section--diferenciais { padding-bottom: 0; }

.diff-stage {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}
.diff-col { display: flex; flex-direction: column; gap: clamp(1.75rem, 3.5vw, 3rem); justify-content: center; }

/* Central illustration (user-supplied blocos.png; graceful placeholder) */
.diff-illus { width: min(38vw, 440px); justify-self: center; position: relative; }
.diff-illus img { width: 100%; height: auto; }
.diff-illus-ph { display: none; }
.diff-illus.is-empty {
  aspect-ratio: 1 / 1;
  display: grid; place-items: center;
  border: 1.5px dashed var(--rule-strong);
  background:
    repeating-linear-gradient(45deg, var(--paper-2) 0 10px, transparent 10px 20px),
    var(--paper);
}
.diff-illus.is-empty img { display: none; }
.diff-illus.is-empty .diff-illus-ph {
  display: block; max-width: 70%; text-align: center;
  font-family: var(--font-mono); font-size: 0.76rem; line-height: 1.5; color: var(--ink-mute);
}
.diff-illus.is-empty .diff-illus-ph code { color: var(--signal); }

/* Callout — a numbered node sitting on a colored edge facing the center */
.diff-callout { position: relative; }            /* --c set inline per card */
.diff-col--left  .diff-callout { text-align: right; border-right: 2px solid var(--c); padding-right: 2.5rem; }
.diff-col--right .diff-callout { text-align: left;  border-left:  2px solid var(--c); padding-left:  2.5rem; }
.diff-badge {
  position: absolute; top: 0;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  background: var(--c); color: var(--paper);
  font-family: var(--font-mono); font-size: 0.8rem; font-weight: 600;
  border-radius: 2px;
}
.diff-col--left  .diff-badge { right: -17px; }
.diff-col--right .diff-badge { left:  -17px; }
.diff-title { font-size: 1.15rem; font-weight: 700; color: var(--ink); margin-bottom: 0.5rem; letter-spacing: -0.01em; transition: color var(--t-base) var(--ease); }
.diff-callout:hover .diff-title { color: var(--c); }
.diff-desc { font-size: 0.95rem; color: var(--ink-soft); line-height: 1.55; }

/* Full-bleed dark band: tagline + ecosystem metrics */
.diff-band {
  background: var(--ink); color: var(--paper);
  margin-top: clamp(3rem, 7vw, 5.5rem);
  padding: clamp(2rem, 5vw, 3.25rem) 0;
}
.diff-band-inner { display: flex; align-items: center; justify-content: space-between; gap: 2.5rem; flex-wrap: wrap; }
.diff-band-lead { display: flex; align-items: center; gap: 1.25rem; }
.diff-band-lead .blocks-mark { width: 38px; height: 38px; color: var(--signal); flex-shrink: 0; }
.diff-band-lead strong { display: block; color: var(--paper); font-size: 1.15rem; font-weight: 700; letter-spacing: -0.01em; }
.diff-band-lead p { color: var(--on-ink); font-size: 0.95rem; line-height: 1.45; }
.diff-metrics { display: flex; gap: clamp(1.25rem, 3vw, 2.75rem); flex-wrap: wrap; }
.metric { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; }
.metric svg { width: 26px; height: 26px; color: var(--on-ink); transition: color var(--t-base) var(--ease); }
.metric span { font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--on-ink); transition: color var(--t-base) var(--ease); }
.metric:hover svg, .metric:hover span { color: var(--paper); }

/* ── Serviços — text/list split (no glowing dots) ────────────────── */
.servicos-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.servicos-intro .section-title { font-size: clamp(1.7rem, 3vw, 2.5rem); }
.servicos-intro p { margin-top: 1.25rem; font-size: 1.1rem; color: var(--ink-soft); line-height: 1.6; max-width: 42ch; }

.svc-list { border-top: 1px solid var(--rule); }
.svc {
  display: grid;
  grid-template-columns: 2.75rem 1fr auto;
  align-items: baseline;
  gap: 1rem;
  padding: 1rem 0.25rem;
  border-bottom: 1px solid var(--rule);
  transition: padding-left var(--t-base) var(--ease), background var(--t-base) var(--ease);
}
.svc:hover { background: var(--surface); padding-left: 0.75rem; }
.svc-n { font-family: var(--font-mono); font-size: 0.82rem; color: var(--ink-mute); }
.svc-name { font-size: 1.05rem; font-weight: 600; color: var(--ink); }
.svc-cat { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-mute); }
.svc:hover .svc-cat { color: var(--signal); }

/* ── Como funciona — four steps divided by vertical hairlines ────── */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--rule); }
.step { padding: 2rem 1.5rem 0; border-left: 1px solid var(--rule); }
.step:first-child { border-left: none; padding-left: 0; }
.step-n {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1;
  color: var(--signal);
  margin-bottom: 1.25rem;
}
.step-title { font-size: 0.82rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink); margin-bottom: 0.7rem; }
.step-desc { font-size: 0.98rem; color: var(--ink-soft); line-height: 1.55; }

/* ── Clientes — flat bordered briefs ─────────────────────────────── */
.clientes-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.client {
  padding: 2rem 1.75rem;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--rule);
  transition: border-left-color var(--t-base) var(--ease);
}
.client:hover { border-left-color: var(--signal); }
.client-sector { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-mute); margin-bottom: 1.5rem; }
.client-title { font-size: 1.3rem; font-weight: 700; color: var(--ink); margin-bottom: 0.7rem; letter-spacing: -0.01em; }
.client-desc { font-size: 0.98rem; color: var(--ink-soft); line-height: 1.55; margin-bottom: 1.5rem; }
.client-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.client-tag { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.04em; color: var(--ink-soft); border: 1px solid var(--rule); border-radius: 2px; padding: 0.25rem 0.55rem; }

/* ── Contato — intro + flat form ─────────────────────────────────── */
.contato-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.contato-intro .section-title { font-size: clamp(1.8rem, 3.2vw, 2.6rem); }
.contato-intro p { margin: 1.25rem 0 2rem; font-size: 1.1rem; color: var(--ink-soft); line-height: 1.6; max-width: 40ch; }

.lead-form { border-top: 2px solid var(--ink); padding-top: 1.75rem; }
.field { margin-bottom: 1.4rem; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.field-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 0.5rem;
}
.field-input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  padding: 0.8rem 0.95rem;
  font-size: 1rem;
  color: var(--ink);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.field-input::placeholder { color: var(--ink-mute); }
.field-input:focus { outline: none; border-color: var(--signal); box-shadow: inset 0 -2px 0 var(--signal); }
textarea.field-input { resize: vertical; min-height: 120px; }

.btn-submit {
  width: 100%;
  justify-content: center;
  background: var(--signal);
  color: var(--paper);
  padding: 1rem;
  border-radius: 2px;
  font-size: 1rem;
  font-weight: 600;
  margin-top: 0.5rem;
  transition: background var(--t-base) var(--ease);
}
.btn-submit:hover:not(:disabled) { background: var(--ink); }
.btn-submit:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-submit.enviado { background: var(--ok); }
.form-note { margin-top: 1rem; font-size: 0.85rem; color: var(--ink-mute); }

/* ── Footer ──────────────────────────────────────────────────────── */
.site-footer { border-top: 1px solid var(--rule); padding: clamp(2.5rem, 5vw, 4rem) 0 2.5rem; }
.footer-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2rem; align-items: flex-start; }
.footer-grid p { font-size: 0.9rem; color: var(--ink-soft); max-width: 36ch; margin-top: 0.85rem; line-height: 1.55; }
.footer-contact { font-family: var(--font-mono); font-size: 0.82rem; color: var(--ink-soft); display: grid; gap: 0.4rem; }
.footer-contact a:hover { color: var(--signal); }
.footer-legal {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
}

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .site-nav { display: none; }
  .hamburger { display: flex; }
  .diff-stage { grid-template-columns: 1fr; gap: 2.5rem; }
  .diff-illus { order: -1; width: min(70vw, 340px); }
  .diff-col { gap: 1.75rem; }
  .diff-col--left .diff-callout,
  .diff-col--right .diff-callout { text-align: left; border-left: 2px solid var(--c); border-right: none; padding-left: 2.5rem; padding-right: 0; }
  .diff-col--left .diff-badge,
  .diff-col--right .diff-badge { left: -17px; right: auto; }
  .diff-band-inner { flex-direction: column; align-items: flex-start; gap: 1.75rem; }
  .servicos-grid, .contato-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step:nth-child(3) { border-left: none; padding-left: 0; }
  .step { padding-top: 2rem; }
  .clientes-grid { grid-template-columns: 1fr; }
}
@media (min-width: 1025px) { .hamburger, .drawer { display: none; } }

@media (max-width: 560px) {
  .diff-metrics { gap: 1.25rem 1.75rem; width: 100%; }
  .steps { grid-template-columns: 1fr; }
  .step { border-left: none; padding-left: 0; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .hero-actions { gap: 1.25rem; }
}