/* ==========================================================================
   Esquina B2B — landing page (base editorial mantida do redesign anterior)
   Preto/papel + um único acento de sinal. Serifada editorial para headlines,
   sans neutra pro corpo, mono pra dados. Sem gradiente, sem sombra grande,
   sem ícone-em-caixinha-colorida.
   ========================================================================== */

:root {
  --bg: #faf9f6;
  --bg-2: #f1efe9;
  --surface: #ffffff;
  --fg: #0b0b0a;
  --soft: rgba(11, 11, 10, 0.62);
  --faint: #6b6b68;
  --line: rgba(11, 11, 10, 0.16);

  --signal: #ff3d1a;
  --signal-ink: #0b0b0a;

  --font-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --max: 1180px;
  --r: 3px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0b0a;
    --bg-2: #171613;
    --surface: #131210;
    --fg: #faf9f6;
    --soft: rgba(250, 249, 246, 0.64);
    --faint: #a8a8a4;
    --line: rgba(250, 249, 246, 0.18);
    --signal: #ff4b26;
    --signal-ink: #0b0b0a;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -48px;
  left: 16px;
  z-index: 100;
  background: var(--fg);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 12px 18px;
  border-radius: var(--r);
  text-decoration: none;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 16px;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
}

.eyebrow.on-signal {
  color: var(--signal);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.015em;
}

h2 {
  font-size: 40px;
  line-height: 1.08;
}

h2 em,
h1 em {
  font-style: italic;
  color: var(--signal);
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 640px;
  margin-bottom: 56px;
}

.section-head p {
  margin: 0;
  color: var(--soft);
  font-size: 15.5px;
  max-width: 480px;
}

section {
  padding: 100px 0;
  border-bottom: 1px solid var(--line);
}

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

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: var(--r);
  padding: 14px 24px;
  font-size: 13.5px;
  font-weight: 600;
  font-family: var(--font-sans);
  letter-spacing: 0.01em;
  border: 1px solid var(--fg);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease, transform 0.1s ease;
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--signal);
  color: var(--signal-ink);
  border-color: var(--signal);
}

.btn-primary:hover {
  background: var(--fg);
  border-color: var(--fg);
  color: var(--bg);
}

.btn-ghost {
  background: transparent;
  color: var(--fg);
}

.btn-ghost:hover {
  background: var(--fg);
  color: var(--bg);
}

.btn-block {
  width: 100%;
}

.btn-arrow::after {
  content: '→';
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  text-decoration: none;
  color: var(--fg);
  border-bottom: 1px solid var(--fg);
  padding-bottom: 2px;
}

.link-arrow:hover {
  color: var(--signal);
  border-color: var(--signal);
}

/* ---------- masthead header ---------- */

header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.masthead-meta {
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--fg);
}

.brand .dot {
  color: var(--signal);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--soft);
}

.nav-links a {
  text-decoration: none;
  position: relative;
  padding-bottom: 3px;
  transition: color 0.15s ease;
}

.nav-links a:hover {
  color: var(--fg);
  border-bottom: 1px solid var(--fg);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--r);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 18px;
}

.nav-links-mobile {
  display: none;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--line);
}

.nav-links-mobile a {
  text-decoration: none;
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 16px 4px;
  border-bottom: 1px solid var(--line);
}

.nav-links-mobile.open {
  display: flex;
}

/* ---------- hero ---------- */

.hero {
  padding: 72px 0 80px;
  border-bottom: none;
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: start;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 26px;
}

.hero h1 {
  font-size: 62px;
  line-height: 1.02;
  letter-spacing: -0.02em;
}

.hero-sub {
  font-size: 17px;
  color: var(--soft);
  max-width: 460px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  padding-top: 4px;
}

.hero-index {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  width: 100%;
  max-width: 480px;
}

.hero-index div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-index .n {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--faint);
}

.hero-index .t {
  font-size: 13px;
  color: var(--soft);
}

/* hero visual: case-file dossier card */

.hero-visual {
  position: relative;
  padding-top: 8px;
}

.stamp {
  position: absolute;
  top: -18px;
  right: -8px;
  width: 92px;
  height: 92px;
  border: 1.5px solid var(--signal);
  border-radius: 50%;
  color: var(--signal);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transform: rotate(9deg);
  z-index: 3;
  background: var(--bg);
}

.case-file {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
  position: relative;
  z-index: 2;
}

.case-file-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}

.case-file-example {
  padding: 9px 20px;
  border-bottom: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--signal);
  background: var(--bg-2);
}

.case-file-body {
  padding: 22px 22px 6px;
}

.case-file-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 20px;
}

.case-file-name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
}

.case-file-meta {
  font-size: 13px;
  color: var(--soft);
  margin-top: 4px;
}

.case-score {
  text-align: right;
  flex-shrink: 0;
}

.case-score .num {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 600;
  color: var(--signal);
  line-height: 1;
}

.case-score .tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--signal);
  display: block;
  margin-top: 4px;
}

.case-signals {
  display: flex;
  flex-direction: column;
}

.case-signal {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 13px;
  color: var(--soft);
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

.case-signal .pts {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--fg);
  flex-shrink: 0;
  width: 32px;
}

.case-file-note {
  margin: 18px 0 20px;
  padding: 16px 18px;
  border-top: 1px dashed var(--line);
  padding-top: 18px;
}

.case-file-note .eyebrow {
  display: block;
  margin-bottom: 8px;
}

.case-file-note p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--soft);
  font-style: italic;
  font-family: var(--font-display);
}

/* ---------- ticker ---------- */

.ticker-strip {
  background: var(--fg);
  color: var(--bg);
  overflow: hidden;
  white-space: nowrap;
  border-bottom: 1px solid var(--line);
}

.ticker-track {
  display: inline-flex;
  animation: ticker 32s linear infinite;
}

.ticker-track span {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 16px 0;
  display: inline-flex;
  align-items: center;
}

.ticker-track span::after {
  content: '·';
  color: var(--signal);
  margin: 0 28px;
}

@keyframes ticker {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.ticker-strip:hover .ticker-track,
.ticker-strip:focus-within .ticker-track {
  animation-play-state: paused;
}

@media (prefers-reduced-motion: reduce) {
  .ticker-track {
    animation: none;
  }
}

/* ---------- problem (pain list) ---------- */

.pain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 48px;
}

.pain-item {
  display: flex;
  gap: 14px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  font-size: 14.5px;
  color: var(--soft);
  line-height: 1.5;
}

.pain-item .mark {
  color: var(--signal);
  flex-shrink: 0;
}

/* ---------- concept band (a esquina) ---------- */

.concept-band {
  background: var(--fg);
  color: var(--bg);
}

.concept-band .wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
  max-width: 720px;
}

.concept-band h2 {
  color: var(--bg);
}

.concept-lead {
  margin: 0;
  font-size: 17px;
  line-height: 1.6;
  color: rgba(250, 249, 246, 0.72);
}

.concept-words {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  width: 100%;
  padding-top: 8px;
  border-top: 1px solid rgba(250, 249, 246, 0.16);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(250, 249, 246, 0.4);
}

/* ---------- audience chips (para quem) ---------- */

.audience-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.audience-chip {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  font-size: 13px;
  color: var(--soft);
}

/* ---------- dossier list (how it works) ---------- */

.dossier-list {
  display: flex;
  flex-direction: column;
}

.dossier-row {
  display: grid;
  grid-template-columns: 90px 1fr 1.4fr;
  gap: 32px;
  align-items: baseline;
  padding: 30px 0;
  border-top: 1px solid var(--line);
}

.dossier-row:last-child {
  border-bottom: 1px solid var(--line);
}

.dossier-row .n {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--faint);
}

.dossier-row h3 {
  font-size: 20px;
}

.dossier-row p {
  margin: 0;
  font-size: 14px;
  color: var(--soft);
  line-height: 1.65;
}

/* ---------- features index ---------- */

.features {
  background: var(--bg-2);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 48px;
}

.feature-row {
  display: flex;
  gap: 20px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.feature-row .n {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--faint);
  flex-shrink: 0;
  width: 26px;
  padding-top: 3px;
}

.feature-row .tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--signal);
  display: block;
  margin-bottom: 6px;
}

.feature-row h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.feature-row p {
  margin: 0;
  font-size: 13.5px;
  color: var(--soft);
  line-height: 1.6;
}

/* ---------- pricing rate card ---------- */

.rate-card {
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
}

.rate-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.rate-col {
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  border-left: 1px solid var(--line);
}

.rate-col:first-child {
  border-left: none;
}

.rate-col.recommended {
  background: var(--fg);
  color: var(--bg);
}

.rate-col.recommended .rate-sub,
.rate-col.recommended .plan-unit {
  color: rgba(250, 249, 246, 0.62);
}

.rate-col.recommended .rate-feature {
  border-top-color: rgba(250, 249, 246, 0.16);
}

.rate-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--signal);
}

.rate-name {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
}

.rate-sub {
  font-size: 12.5px;
  color: var(--soft);
  margin-top: -14px;
}

.rate-price {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.rate-price .amount {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 600;
}

.rate-price .period {
  font-size: 12.5px;
  color: var(--soft);
}

.rate-col.recommended .rate-price .period {
  color: rgba(250, 249, 246, 0.62);
}

.plan-unit {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--faint);
  margin-top: -14px;
}

.plan-capacity {
  font-size: 12px;
  color: var(--soft);
  line-height: 1.4;
}

.rate-col.recommended .plan-capacity {
  color: rgba(250, 249, 246, 0.62);
}

.rate-features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.rate-feature {
  font-size: 13px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 10px;
}

.rate-feature::before {
  content: '—';
  color: var(--signal);
  flex-shrink: 0;
}

.pricing-note {
  margin-top: 28px;
  font-size: 12.5px;
  color: var(--faint);
  font-family: var(--font-mono);
  max-width: 640px;
}

/* ---------- faq glossary ---------- */

.faq-list {
  max-width: 760px;
}

.faq-item {
  border-top: 1px solid var(--line);
}

.faq-item:last-child {
  border-bottom: 1px solid var(--line);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 22px 0;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--fg);
  cursor: pointer;
}

.faq-question .qid {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--faint);
  margin-right: 16px;
}

.faq-question .ind {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--signal);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-item.open .faq-question .ind {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.faq-answer p {
  margin: 0;
  padding: 0 0 24px 48px;
  font-size: 14px;
  color: var(--soft);
  line-height: 1.7;
}

/* ---------- final CTA (manifesto band) ---------- */

.cta-block {
  padding: 0;
  border-bottom: none;
}

.cta-band {
  background: var(--fg);
  color: var(--bg);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.cta-band .wrap {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 32px;
}

.cta-band h2 {
  color: var(--bg);
  font-size: 52px;
  max-width: 760px;
}

.cta-band p {
  margin: 0;
  font-size: 15.5px;
  color: rgba(250, 249, 246, 0.66);
  max-width: 460px;
}

.cta-ghost-num {
  position: absolute;
  right: -40px;
  bottom: -80px;
  font-family: var(--font-display);
  font-size: 320px;
  font-weight: 600;
  color: rgba(250, 249, 246, 0.045);
  line-height: 1;
  z-index: 1;
  pointer-events: none;
}

/* ---------- footer ---------- */

footer {
  padding: 0;
}

.footer-meta {
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
}

.footer-main {
  padding: 48px 0 32px;
  display: flex;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.footer-brand .brand {
  font-size: 20px;
}

.footer-brand p {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--soft);
  max-width: 260px;
}

.footer-cols {
  display: flex;
  gap: 56px;
  flex-wrap: wrap;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col .title {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 4px;
}

.footer-col a {
  text-decoration: none;
  font-size: 13.5px;
  color: var(--soft);
}

.footer-col a:hover {
  color: var(--fg);
}

/* ---------- responsive ---------- */

@media (max-width: 1100px) {
  .rate-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .rate-col:nth-child(3) {
    border-left: none;
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 980px) {
  .hero .wrap {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-visual {
    max-width: 460px;
  }

  .dossier-row {
    grid-template-columns: 50px 1fr;
    grid-template-areas: 'num title' 'blank desc';
  }

  .dossier-row .n {
    grid-area: num;
  }

  .dossier-row h3 {
    grid-area: title;
  }

  .dossier-row p {
    grid-area: desc;
  }

  .feature-list {
    grid-template-columns: 1fr;
  }

  .pain-grid {
    grid-template-columns: 1fr;
  }

  .rate-grid {
    grid-template-columns: 1fr;
  }

  .rate-col {
    border-left: none;
    border-top: 1px solid var(--line);
  }

  .rate-col:first-child {
    border-top: none;
  }

  .cta-ghost-num {
    font-size: 200px;
  }
}

@media (max-width: 720px) {
  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  section {
    padding: 64px 0;
  }

  .hero {
    padding: 40px 0 48px;
  }

  .hero h1 {
    font-size: 38px;
  }

  h2 {
    font-size: 30px;
  }

  .cta-band h2 {
    font-size: 34px;
  }

  .masthead-meta span:last-child {
    display: none;
  }

  .footer-main {
    flex-direction: column;
  }

  .cta-ghost-num {
    display: none;
  }

  .hero-index {
    gap: 20px;
  }
}