/* ============================================================
   Revisor Contratual — Landing institucional
   Design system: Orsheva 7 (tokens.css)
   ============================================================ */

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

/* ============================================================
   Nav
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(248, 244, 237, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
  transition: all var(--dur) var(--ease);
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 16px var(--container-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--f-display);
  font-size: 18px;
  letter-spacing: -0.02em;
  font-weight: 500;
}
.nav-logo b { color: var(--accent); margin-left: 4px; font-weight: 600; }

.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  opacity: 0.7;
  transition: opacity 0.2s ease, color 0.2s ease;
}
.nav-links a:hover { opacity: 1; color: var(--accent); }

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

/* ============================================================
   Hero
   ============================================================ */
.hero {
  padding: 96px 0 80px;
  background: linear-gradient(180deg, var(--pearl) 0%, var(--bone) 100%);
}

.hero-eyebrow {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 32px;
}

.hero-title {
  font-family: var(--f-display);
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 500;
  line-height: 0.95;
  letter-spacing: -0.04em;
  font-variation-settings: "SOFT" 30, "opsz" 144;
  color: var(--fg);
  margin-bottom: 32px;
}

.hero-title sup {
  font-size: 0.4em;
  font-weight: 600;
  vertical-align: super;
  opacity: 0.7;
  letter-spacing: 0;
  margin-left: 4px;
}

.hero-lead {
  font-family: var(--f-body);
  font-size: clamp(16px, 1.5vw, 20px);
  line-height: 1.5;
  color: var(--fg-muted);
  max-width: 640px;
  margin-bottom: 40px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-family: var(--f-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--dur) var(--ease);
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 1px 2px rgba(15, 14, 12, 0.04);
}
.btn-primary:hover {
  background: var(--or-600);
  box-shadow: 0 4px 12px rgba(238, 107, 32, 0.3);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--line-strong);
}
.btn-secondary:hover {
  background: var(--ink);
  color: var(--bg);
}

.hero-foot {
  font-size: 13px;
  color: var(--fg-muted);
  font-style: italic;
  max-width: 580px;
}

/* ============================================================
   Stats
   ============================================================ */
.stats {
  padding: 64px 0;
  background: var(--ink);
  color: var(--bg);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 48px;
  text-align: center;
}

.stat-value {
  font-family: var(--f-display);
  font-size: 64px;
  font-weight: 500;
  letter-spacing: -0.04em;
  color: var(--or-400);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bone);
  opacity: 0.8;
}

/* ============================================================
   Sections (shared)
   ============================================================ */

section { padding: 96px 0; }

.brand-eyebrow {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--f-display);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--fg);
  margin-bottom: 48px;
  max-width: 720px;
}

.section-title em {
  font-style: italic;
  color: var(--accent);
}

/* ============================================================
   Features
   ============================================================ */
.features { background: var(--bg); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.feature {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 32px;
  transition: all var(--dur) var(--ease);
}
.feature:hover {
  border-color: var(--accent);
  box-shadow: 0 12px 32px rgba(15, 14, 12, 0.08);
  transform: translateY(-2px);
}

.feature-num {
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 16px;
}

.feature h3 {
  font-family: var(--f-display);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.feature p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.6;
}

.feature code {
  font-family: var(--f-mono);
  background: var(--sh-50);
  color: var(--sh-700);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.875em;
}

/* ============================================================
   Princípios
   ============================================================ */
.principios {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bone) 100%);
}

.principios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
}

.principio {
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

.principio h3 {
  font-family: var(--f-display);
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 12px;
}

.principio p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.6;
}

.principio strong { color: var(--fg); }
.principio code {
  font-family: var(--f-mono);
  background: var(--sh-50);
  color: var(--sh-700);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.875em;
}

/* ============================================================
   Stack
   ============================================================ */
.stack { background: var(--bg); }

.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.stack-item {
  padding: 24px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 12px;
  transition: all var(--dur) var(--ease);
}
.stack-item:hover {
  border-color: var(--accent-deep);
  background: var(--sh-50);
}

.stack-label {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 8px;
}

.stack-value {
  font-family: var(--f-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--fg);
  letter-spacing: -0.01em;
}

/* ============================================================
   Download
   ============================================================ */
.download {
  background: var(--ink);
  color: var(--bg);
}

.download .brand-eyebrow,
.download .section-title {
  color: var(--bone);
}
.download .section-title em { color: var(--or-400); }

.install-card {
  background: var(--sh-900);
  border: 1px solid var(--sh-700);
  border-radius: 16px;
  padding: 32px;
  max-width: 800px;
}

.install-code {
  font-family: var(--f-mono);
  font-size: 14px;
  line-height: 1.7;
  color: var(--bone);
  overflow-x: auto;
  white-space: pre;
}

.install-code code {
  font-family: inherit;
  background: transparent;
  padding: 0;
}

.install-foot {
  font-size: 13px;
  color: var(--bone);
  opacity: 0.7;
  margin-top: 24px;
}

.install-foot a {
  color: var(--or-400);
  border-bottom: 1px solid var(--or-700);
  transition: color 0.2s;
}
.install-foot a:hover { color: var(--or-300); }

/* ============================================================
   Footer
   ============================================================ */
.footer {
  background: var(--ink);
  color: var(--stone);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

.footer-logo {
  font-family: var(--f-display);
  font-size: 20px;
  font-weight: 500;
  color: var(--bone);
  margin-bottom: 12px;
}
.footer-logo b { color: var(--or-400); margin-left: 4px; }

.footer-tag {
  font-size: 13px;
  color: var(--stone);
  opacity: 0.7;
  font-family: var(--f-mono);
  letter-spacing: 0.05em;
}

.footer-links h4 {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bone);
  margin-bottom: 16px;
}

.footer-links a {
  display: block;
  padding: 4px 0;
  font-size: 14px;
  color: var(--stone);
  opacity: 0.8;
  transition: all 0.2s;
}
.footer-links a:hover {
  color: var(--or-400);
  opacity: 1;
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--sh-800);
  text-align: center;
  font-size: 13px;
  color: var(--stone);
  opacity: 0.6;
}
.footer-bottom em { color: var(--or-400); font-style: italic; }