/* ==========================================================================
   VULPINI CONSULTORIA — Design tokens
   Conceito: "livro-razão" contábil. Papel de ficha pautada, tinta preta de
   escrituração, tinta vermelha do parecer de auditoria (a cor da marca) e
   a raposa — vulpine: o olhar atento que percebe o que passou despercebido.
   ========================================================================== */

:root{
  --ink: #14100E;
  --ink-soft: #3A322D;
  --rust: #7B1900;
  --rust-deep: #4A0F00;
  --rust-bright: #A32300;
  --paper: #EEEBE1;
  --paper-deep: #E3DFD1;
  --paper-line: #CFC9B6;
  --sage: #6E7A56;
  --white: #FBFAF6;
  --cream: #F6F4EC;

  --font-display: 'Space Grotesk', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  --container: 1180px;
  --gutter: clamp(20px, 5vw, 64px);
}

*, *::before, *::after{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0;
}

.wrap{
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.eyebrow{
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rust);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before{
  content: "";
  width: 22px;
  height: 1px;
  background: var(--rust);
  display: inline-block;
}

.hairline{
  border: none;
  border-top: 1px solid var(--paper-line);
  margin: 0;
}

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 22px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  transition: background .25s ease, color .25s ease, border-color .25s ease, transform .2s ease;
  white-space: nowrap;
}
.btn-primary{
  background: var(--rust);
  border-color: var(--rust);
  color: var(--white);
}
.btn-primary:hover{ background: var(--rust-deep); border-color: var(--rust-deep); transform: translateY(-1px); }
.btn-ghost{
  background: transparent;
  color: var(--ink);
}
.btn-ghost:hover{ background: var(--ink); color: var(--paper); transform: translateY(-1px); }

/* ---------- Header ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--paper-line);
}
.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}
.brand{ display: flex; align-items: center; gap: 10px; }
.brand img{ height: 30px; width: auto; }

.nav-links{
  display: flex;
  align-items: center;
  gap: 34px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.nav-links a{
  position: relative;
  padding-bottom: 4px;
  color: var(--ink-soft);
  transition: color .2s ease;
}
.nav-links a:hover, .nav-links a[aria-current="page"]{ color: var(--rust); }
.nav-links a[aria-current="page"]::after{
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: var(--rust);
}
.nav-cta{ display: flex; align-items: center; gap: 22px; }

.nav-toggle{
  display: none;
  background: none;
  border: 1px solid var(--ink);
  border-radius: 2px;
  width: 40px; height: 36px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content: "";
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  position: relative;
  transition: transform .2s ease;
}
.nav-toggle span::before{ position: absolute; top: -6px; }
.nav-toggle span::after{ position: absolute; top: 6px; }

@media (max-width: 860px){
  .nav-links{
    position: fixed;
    inset: 65px 0 0 0;
    background: var(--paper);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 10px var(--gutter) 30px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
    border-bottom: 1px solid var(--paper-line);
  }
  .nav-links a{ width: 100%; padding: 16px 0; border-bottom: 1px solid var(--paper-line); }
  body.nav-open .nav-links{ opacity: 1; transform: translateY(0); pointer-events: auto; }
  .nav-cta .btn-ghost{ display: none; }
  .nav-toggle{ display: flex; }
}

/* ---------- Hero ---------- */
.hero{
  padding: clamp(44px, 6vw, 76px) 0 clamp(36px, 5vw, 56px);
  position: relative;
  overflow: hidden;
}
.hero-grid{
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(30px, 6vw, 70px);
  align-items: end;
}
.hero h1{
  font-size: clamp(2.4rem, 5.4vw, 4.4rem);
  margin-top: 20px;
}
.hero h1 em{
  font-style: normal;
  color: var(--rust);
}
.hero-lede{
  margin-top: 22px;
  max-width: 46ch;
  font-size: 1.08rem;
  color: var(--ink-soft);
}
.hero-actions{
  margin-top: 34px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-side{
  border-left: 1px solid var(--paper-line);
  padding-left: clamp(20px, 3vw, 34px);
}
.ledger-mini{ list-style: none; margin: 0; padding: 0; }
.ledger-mini li{
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--paper-line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
}
.ledger-mini li:first-child{ padding-top: 0; }
.ledger-mini strong{
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--ink);
  display: block;
  margin-bottom: 2px;
}

/* ---------- Sections ---------- */
section{ padding: clamp(36px, 5.5vw, 64px) 0; }
.section-alt{ background: var(--paper-deep); }
.section-dark{ background: var(--ink); color: var(--cream); }
.section-dark .eyebrow{ color: var(--rust-bright); }
.section-dark .eyebrow::before{ background: var(--rust-bright); }

.section-head{
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
  margin-bottom: clamp(30px, 5vw, 54px);
  flex-wrap: wrap;
}
.section-head h2{ font-size: clamp(1.7rem, 3.4vw, 2.6rem); margin-top: 14px; max-width: 20ch; }
.section-head p{ max-width: 40ch; color: var(--ink-soft); }
.section-dark .section-head p{ color: #C9C4B8; }

/* ---------- Ledger list (signature component) ---------- */
.ledger{
  border-top: 1px solid var(--paper-line);
}
.section-dark .ledger{ border-top-color: #3A342C; }

.ledger-row{
  display: grid;
  grid-template-columns: 88px 1fr auto;
  gap: 24px;
  align-items: start;
  padding: 26px 0;
  border-bottom: 1px solid var(--paper-line);
  position: relative;
}
.section-dark .ledger-row{ border-bottom-color: #3A342C; }
.ledger-code{
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--rust);
  padding-top: 6px;
}
.ledger-body h3{ font-size: 1.25rem; margin-bottom: 8px; }
.ledger-body p{ margin: 0; color: var(--ink-soft); max-width: 56ch; }
.section-dark .ledger-body p{ color: #C9C4B8; }
.ledger-mark{
  align-self: center;
  width: 34px; height: 34px;
  opacity: 0;
  transform: scale(.6) rotate(-8deg);
  transition: opacity .5s ease, transform .5s ease;
}
.ledger-row.in-view .ledger-mark{ opacity: 1; transform: scale(1) rotate(-8deg); }
.ledger-row.featured{ background: rgba(123,25,0,0.045); margin: 0 -20px; padding: 26px 20px; border-radius: 3px; }
.ledger-row.featured .ledger-code{ color: var(--rust); font-weight: 600; }

/* ---------- Cards ---------- */
.card-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--paper-line);
  border: 1px solid var(--paper-line);
}
.card{
  background: var(--paper);
  padding: 30px 26px;
}
.card .eyebrow{ margin-bottom: 16px; }
.card h3{ font-size: 1.15rem; margin-bottom: 10px; }
.card p{ color: var(--ink-soft); margin: 0; font-size: 0.96rem; }

@media (max-width: 900px){
  .card-grid{ grid-template-columns: 1fr; }
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-side{ border-left: none; border-top: 1px solid var(--paper-line); padding-left: 0; padding-top: 24px; }
  .ledger-row{ grid-template-columns: 56px 1fr; }
  .ledger-mark{ display: none; }
}

/* ---------- Stat strip ---------- */
.stat-strip{
  border-top: 1px solid var(--paper-line);
  border-bottom: 1px solid var(--paper-line);
  padding: 30px 0;
}
.stat-strip .wrap{
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  justify-content: space-between;
}
.stat{ font-family: var(--font-mono); }
.stat strong{
  font-family: var(--font-display);
  font-size: 1.9rem;
  display: block;
  color: var(--rust);
}
.stat span{ font-size: 11.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); }

@media (max-width: 640px){
  .stat-strip .wrap{ gap: 20px 24px; }
  .stat{ flex: 0 1 calc(50% - 12px); }
}

/* ---------- CTA band ---------- */
.cta-band{
  background: var(--ink);
  color: var(--cream);
  border-radius: 4px;
  padding: clamp(40px, 6vw, 64px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.cta-band h2{ color: var(--cream); font-size: clamp(1.6rem, 3vw, 2.2rem); max-width: 18ch; }
.cta-band .btn-primary{ }

/* ---------- Footer ---------- */
.site-footer{
  background: var(--ink);
  color: #B9B3A6;
  padding: 60px 0 30px;
}
.footer-grid{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid #3A342C;
}
.footer-grid h4{
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cream);
  margin-bottom: 16px;
}
.footer-grid ul{ list-style: none; margin: 0; padding: 0; }
.footer-grid li{ margin-bottom: 10px; font-size: 14.5px; }
.footer-grid a:hover{ color: var(--rust-bright); }
.footer-brand img{ height: 26px; margin-bottom: 14px; filter: brightness(0) invert(1); }
.footer-brand p{ max-width: 34ch; font-size: 14px; color: #9A9488; }
.footer-bottom{
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 24px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: #7A756A;
}

@media (max-width: 760px){
  .footer-grid{ grid-template-columns: 1fr 1fr; }
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{
  padding: clamp(32px, 5vw, 56px) 0 clamp(24px, 3.5vw, 36px);
  border-bottom: 1px solid var(--paper-line);
}
.page-hero h1{ font-size: clamp(2rem, 4.4vw, 3.2rem); margin-top: 18px; max-width: 18ch; }
.page-hero p{ margin-top: 18px; max-width: 60ch; color: var(--ink-soft); font-size: 1.05rem; }
.breadcrumb{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.breadcrumb a:hover{ color: var(--rust); }

/* ---------- Utility ---------- */
.reveal{
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.in-view{ opacity: 1; transform: translateY(0); }

.two-col{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(30px, 5vw, 70px);
  align-items: start;
}
@media (max-width: 860px){ .two-col{ grid-template-columns: 1fr; } }

.pill{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 12px;
  border: 1px solid var(--ink);
  border-radius: 20px;
}

blockquote{
  margin: 0;
  padding: 0 0 0 24px;
  border-left: 2px solid var(--rust);
  font-family: var(--font-display);
  font-size: 1.3rem;
  line-height: 1.4;
  color: var(--ink);
}

.form-grid{ display: grid; gap: 18px; }
.form-row{ display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 640px){ .form-row{ grid-template-columns: 1fr; } }
label{
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
  color: var(--ink-soft);
}
input, select, textarea{
  width: 100%;
  background: var(--white);
  border: 1px solid var(--paper-line);
  border-radius: 2px;
  padding: 13px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink);
}
input:focus, select:focus, textarea:focus{
  outline: 2px solid var(--rust);
  outline-offset: 1px;
  border-color: var(--rust);
}
textarea{ resize: vertical; min-height: 120px; }