/* ============================================================
   FRCP — Design System
   Conceito: "do esboço ao sistema"
   Papel renascentista (hero) → tech limpo (scroll), fundo sempre claro
   ============================================================ */

:root {
  /* -- cores ------------------------------------------------ */
  --paper: #F6F3EB;          /* papel quente (fundo base) */
  --paper-deep: #EFEAdf;     /* papel sombreado */
  --ink: #1A1814;            /* tinta quase-preta quente */
  --ink-soft: #4A453C;       /* tinta diluída */
  --sepia: #8B7355;          /* tinta sépia dos esboços */
  --sepia-faint: rgba(139, 115, 85, 0.35);
  --accent: #2B4BF2;         /* azul elétrico (era tech) */
  --accent-soft: rgba(43, 75, 242, 0.08);
  --grid-line: rgba(43, 75, 242, 0.10);

  /* -- tipografia ------------------------------------------- */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-hand: 'Caveat', cursive;
  --font-tech: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-logo: 'IM Fell English', Georgia, serif;

  /* -- escala ------------------------------------------------ */
  --size-hero: clamp(2.7rem, 6.5vw, 5.6rem);
  --size-h2: clamp(2rem, 5vw, 4rem);
  --size-h3: clamp(1.25rem, 2.2vw, 1.75rem);
  --size-body: clamp(1rem, 1.2vw, 1.125rem);

  --space-section: clamp(6rem, 14vh, 11rem);
  --container: min(1200px, 92vw);
  --radius: 14px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: auto; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-tech);
  font-size: var(--size-body);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* textura de papel sutil */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0.55 0 0 0 0 0.50 0 0 0 0 0.42 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* grid blueprint — aparece conforme o scroll (opacidade via JS) */
.tech-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, black 30%, transparent 100%);
}

::selection { background: var(--accent); color: var(--paper); }

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { width: var(--container); margin-inline: auto; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.1rem 0;
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.site-header.scrolled {
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(26, 24, 20, 0.07);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-logo);
  font-size: 1.35rem;
  letter-spacing: 0.06em;
}
.brand svg, .brand img { width: 42px; height: 42px; object-fit: contain; }

.nav-links {
  display: flex;
  gap: 2.2rem;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
}
.nav-links a {
  position: relative;
  padding: 0.25rem 0;
  color: var(--ink-soft);
  transition: color 0.3s;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1.5px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s var(--ease);
}
.nav-links a:hover::after, .nav-links a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-toggle { display: none; }

/* CTA da navegação */
.nav-links a.nav-cta {
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  padding: 0.45rem 1.15rem;
  color: var(--ink);
  font-weight: 500;
  transition: all 0.3s var(--ease);
}
.nav-links a.nav-cta::after { display: none; }
.nav-links a.nav-cta:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}

/* ============================================================
   Botões
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.9rem;
  border-radius: 999px;
  font-family: var(--font-tech);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  cursor: pointer;
  border: 1.5px solid var(--ink);
  transition: all 0.35s var(--ease);
}
.btn-primary {
  background: var(--ink);
  color: var(--paper);
}
.btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -12px rgba(43, 75, 242, 0.5);
}
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn .arrow { transition: transform 0.3s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* ============================================================
   Hero — caderno de Da Vinci
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 5rem;
}

.hero-sketch {
  position: absolute;
  inset: 0;
  pointer-events: none;
  color: var(--sepia);
}
.hero-sketch svg { width: 100%; height: 100%; }
.hero-sketch .draw {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  opacity: 0.55;
}
.hero-sketch .faint { opacity: 0.25; stroke-width: 1; }
.hero-sketch text {
  font-family: var(--font-hand);
  fill: var(--sepia);
  opacity: 0.65;
}

/* canvas fixo da logo 3D — sempre no centro da tela, atrás do conteúdo */
#logo-3d {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}
main { position: relative; z-index: 2; }

/* hero centralizado: título no topo, 3D no meio, sub + CTAs embaixo */
.hero-center {
  align-items: stretch;
}
.hero-center .hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  text-align: center;
  min-height: calc(100svh - 5rem);
  padding-bottom: 6.5rem;
}
.hero-center h1 {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  max-width: 22ch;
  margin-inline: auto;
}
.hero-center .hero-sub {
  margin-inline: auto;
}
.hero-center .hero-ctas {
  justify-content: center;
  margin-top: 1.6rem;
}
.hero-center .hero-top { padding-top: 2.5rem; }

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 840px;
  margin-inline: auto;
}
.hero-kicker {
  font-family: var(--font-hand);
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  color: var(--sepia);
  margin-bottom: 1rem;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--size-hero);
  line-height: 1.02;
  letter-spacing: -0.015em;
}
.hero h1 .accent-word {
  font-style: italic;
  color: var(--accent);
}
.hero-sub {
  margin-top: 1.6rem;
  max-width: 540px;
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  color: var(--ink-soft);
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.4rem;
}

/* a logo como desenho central no papel — o scroll a transforma em 3D */
.hero-logo-sketch {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -72%);
  width: min(36vh, 64vw);
  color: var(--sepia);
  z-index: 1;
  pointer-events: none;
}
.hero-logo-sketch svg { width: 100%; height: auto; }
.hero-logo-sketch .draw line {
  stroke: currentColor;
  stroke-width: 4;
  stroke-linecap: square;
  opacity: 0.85;
}
.hero-logo-sketch .sketch-letters text {
  font-family: var(--font-logo);
  fill: currentColor;
  opacity: 0.85;
}
@media (prefers-reduced-motion: reduce) {
  .hero-logo-sketch { display: none; } /* sem animação, o 3D estático assume */
}

.scroll-cue {
  position: absolute;
  bottom: 2.2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-hand);
  font-size: 1.1rem;
  color: var(--sepia);
}
.scroll-cue .line {
  width: 1.5px;
  height: 44px;
  background: linear-gradient(to bottom, var(--sepia), transparent);
  animation: cue 2.2s var(--ease) infinite;
}
@keyframes cue {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================================
   Seções
   ============================================================ */
section { padding-block: var(--space-section); position: relative; }

/* cabeçalhos de seção sempre centralizados (estilo Oryzo) */
.section-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.2rem;
}
.section-label::before {
  content: '';
  width: 34px;
  height: 1.5px;
  background: var(--accent);
}
.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--size-h2);
  line-height: 1.08;
  letter-spacing: -0.01em;
  max-width: 18ch;
  margin-inline: auto;
  text-align: center;
  /* halo de papel: legível quando a logo 3D passa atrás */
  text-shadow: 0 0 10px var(--paper), 0 0 22px var(--paper), 0 0 40px var(--paper);
}
/* headline de "O problema" é de duas frases: menor e mais larga que o padrão */
#problema .section-title {
  font-size: clamp(1.6rem, 3.1vw, 2.6rem);
  max-width: 26ch;
}
.section-intro {
  margin: 1.4rem auto 0;
  max-width: 560px;
  color: var(--ink-soft);
  text-align: center;
}
/* fechamento de "O problema": a virada da dor para o Método */
.problema-outro {
  margin: 3rem auto 0;
  max-width: 620px;
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2vw, 1.75rem);
  line-height: 1.3;
  color: var(--ink);
}
/* fechamento de "Why FRCP": a oferta de piloto como remate central */
.why-outro {
  margin: 3.5rem auto 0;
  max-width: 620px;
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2vw, 1.75rem);
  line-height: 1.3;
  color: var(--ink);
}

/* -- the builder (founder, dentro de Why FRCP) ---------------- */
.founder {
  display: grid;
  grid-template-columns: minmax(230px, 320px) 1fr;
  gap: clamp(2.2rem, 5vw, 4.5rem);
  align-items: center;
  max-width: 920px;
  margin: 4.5rem auto 0;
  text-align: left;
}
.founder-figure { margin: 0; }
.founder-plate {
  position: relative;
  aspect-ratio: 4 / 5;
  border: 1px solid rgba(26, 24, 20, 0.22);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--paper) 70%, white 30%);
  box-shadow: 7px 9px 0 rgba(26, 24, 20, 0.05);
  transform: rotate(-1.4deg);
  overflow: hidden;
}
.founder-plate svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
/* retrato real: círculo menor dentro da prancha, moldura de esboço fica no SVG.
   círculo do SVG: cx 150, cy 168, r 103 (viewBox 300x375) — a foto (r = 32% da
   largura, centro a 44.8% da altura) senta ~7px dentro dele; mexeu num, mexe no outro. */
.founder-plate img {
  position: absolute;
  left: 50%;
  top: 44.8%;
  transform: translate(-50%, -50%);
  width: 64%;
  aspect-ratio: 1 / 1;
  height: auto;
  border-radius: 50%;
  object-fit: cover;
  filter: grayscale(0.25) sepia(0.3) contrast(1.03);
}
.founder-plate svg .frame { fill: none; stroke: var(--sepia); stroke-width: 1; stroke-dasharray: 6 5; opacity: 0.5; }
.founder-plate svg .line { fill: none; stroke: var(--sepia); stroke-width: 1.4; opacity: 0.75; }
.founder-plate svg .faint { fill: none; stroke: var(--sepia); stroke-width: 1; opacity: 0.35; }
.founder-plate svg text { font-family: var(--font-hand); font-size: 46px; fill: var(--sepia); }
.founder-plate svg text.note { font-size: 21px; opacity: 0.8; }
.founder-figure figcaption {
  margin-top: 0.9rem;
  font-family: var(--font-hand);
  font-size: 1.2rem;
  color: var(--sepia);
  text-align: center;
  transform: rotate(-1.4deg);
}
.founder-label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}
.founder-label::before { content: ''; width: 34px; height: 1.5px; background: var(--accent); }
.founder-copy h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.7rem, 2.8vw, 2.4rem);
  line-height: 1.12;
  margin-top: 0.9rem;
}
.founder-copy p {
  margin-top: 1.1rem;
  max-width: 54ch;
  color: var(--ink-soft);
  line-height: 1.65;
}
.founder-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.8rem;
  list-style: none;
  padding: 0;
  margin: 1.6rem 0 0;
}
.founder-chips li {
  font-family: var(--font-hand);
  font-size: 1.3rem;
  color: var(--accent);
  border-bottom: 1.5px dashed rgba(43, 75, 242, 0.32);
  padding-bottom: 0.1rem;
}
/* fileira de certificados Anthropic (prova verificável) */
.founder-certs {
  grid-column: 1 / -1;
  margin-top: 3rem;
}
.founder-certs-label {
  font-family: var(--font-hand);
  font-size: 1.3rem;
  color: var(--sepia);
  margin-bottom: 1rem;
}
.founder-certs-row {
  display: grid;
  /* min 132px: os 6 certificados cabem numa fileira só dentro dos 920px do .founder */
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 1rem;
}
.founder-certs-row a {
  display: block;
  border: 1px solid rgba(26, 24, 20, 0.16);
  border-radius: 6px;
  overflow: hidden;
  background: #fff;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.founder-certs-row a:nth-child(odd) { transform: rotate(-0.6deg); }
.founder-certs-row a:nth-child(even) { transform: rotate(0.6deg); }
.founder-certs-row a:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 26px rgba(26, 24, 20, 0.14);
}
.founder-certs-row img { display: block; width: 100%; height: auto; }
@media (max-width: 760px) {
  .founder { grid-template-columns: 1fr; gap: 2rem; }
  .founder-figure { max-width: 250px; margin-inline: auto; }
}

/* -- ponte (transição de eras) ------------------------------ */
.bridge {
  text-align: center;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* texto repartido nas laterais; a cruz 3D gira no vão central */
.bridge-grid {
  display: grid;
  grid-template-columns: 1fr minmax(220px, 28vw) 1fr;
  align-items: center;
  gap: 2.5rem;
  width: var(--container);
  margin-inline: auto;
}
.bridge-side {
  text-shadow: 0 0 10px var(--paper), 0 0 24px var(--paper);
}
.bridge-left { text-align: right; }
.bridge-left h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.2rem, 4.2vw, 3.8rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
}
.bridge-left h2 em { color: var(--accent); }
.bridge-mission {
  margin-top: 0.9rem;
  font-family: var(--font-hand);
  font-size: clamp(1.35rem, 2.3vw, 2rem);
  line-height: 1.2;
  color: var(--sepia);
}
.bridge-right {
  text-align: left;
  display: grid;
  gap: 1.3rem;
  max-width: 40ch;
  font-size: clamp(1rem, 1.25vw, 1.15rem);
  color: var(--ink-soft);
}
.bridge-right .bridge-em {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 1.7vw, 1.6rem);
  line-height: 1.25;
  color: var(--ink);
}
.bridge-right p { text-wrap: balance; }
@media (max-width: 900px) {
  .bridge-grid { grid-template-columns: 1fr; gap: 0; }
  .bridge-center { height: 34vh; }
  .bridge-left, .bridge-left h2 { text-align: center; }
  .bridge-right { margin-inline: auto; text-align: center; }
}
.bridge p.manifesto {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.4vw, 2.8rem);
  line-height: 1.3;
  max-width: 24ch;
  margin-inline: auto;
  /* halo de papel: mantém o texto legível sobre a cruz 3D ao fundo */
  text-shadow:
    0 0 10px var(--paper),
    0 0 22px var(--paper),
    0 0 40px var(--paper);
}
.bridge .manifesto .word { display: inline-block; }
.bridge .equation {
  margin-top: 2.5rem;
  font-family: var(--font-hand);
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  color: var(--sepia);
}
.bridge .equation .tech-eq {
  font-family: var(--font-tech);
  font-size: 0.85em;
  color: var(--accent);
}

/* -- cards -------------------------------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.4rem;
  margin-top: 3.5rem;
}
.card {
  position: relative;
  text-align: left;
  padding: 2.2rem 1.9rem;
  border: 1px solid rgba(26, 24, 20, 0.12);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--paper) 60%, white 40%);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s;
  overflow: hidden;
}
.card:hover {
  transform: translateY(-6px);
  border-color: rgba(43, 75, 242, 0.35);
  box-shadow: 0 24px 48px -24px rgba(26, 24, 20, 0.25);
}
.card .card-num {
  font-family: var(--font-hand);
  font-size: 1.3rem;
  color: var(--sepia);
}
.card h3 {
  font-family: var(--font-tech);
  font-size: var(--size-h3);
  font-weight: 600;
  margin: 0.7rem 0 0.7rem;
  letter-spacing: -0.01em;
}
.card p { color: var(--ink-soft); font-size: 0.98rem; }
.card .card-result {
  margin-top: 1.1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent);
}
.card::after {
  content: '';
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease);
}
.card:hover::after { transform: scaleX(1); }

/* -- trilho horizontal (O problema) -------------------------- */
/* a seção é uma "folha" que desliza por cima da cena da ponte:
   fundo opaco (com o grid impresso nela), cantos arredondados
   no topo e sombra — a transição é de cobertura, não de fade */
#problema {
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    linear-gradient(var(--paper), var(--paper));
  background-size: 56px 56px, 56px 56px, auto;
  border-radius: 28px 28px 0 0;
  box-shadow: 0 -28px 70px -32px rgba(26, 24, 20, 0.4);
}
#problema .container { width: var(--container); }
.rail-wrap { margin-top: 3rem; }
.rail {
  display: flex;
  gap: 1.5rem;
  width: max-content;
}
.rail .card {
  flex: 0 0 clamp(320px, 38vw, 520px);
  min-height: 300px;
  padding: 2.6rem 2.4rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}
.rail .card h3 { font-size: clamp(1.3rem, 1.8vw, 1.7rem); }
@media (max-width: 760px) {
  /* Opção A: trilho horizontal pinado também no mobile (mesmo efeito do desktop).
     conteúdo flui do topo (não centralizado) e o cabeçalho é compacto, para que
     os cards caibam na mesma tela travada; cada card ocupa ~80vw com espia do próximo */
  #problema { align-items: flex-start; padding-top: 4.5rem; }
  #problema .section-intro { margin-top: 1rem; font-size: 0.95rem; }
  .rail-wrap { margin-top: 1.4rem; }
  .rail .card { flex: 0 0 80vw; min-height: 0; padding: 1.6rem 1.5rem; }
  .rail .card h3 { font-size: 1.25rem; }
  .problema-outro { margin-top: 1.8rem; }
}

/* -- pilha sticky (Serviços) --------------------------------- */
.stack { margin-top: 3.5rem; }
.stack .stack-card {
  position: sticky;
  display: grid;
  grid-template-columns: 90px 1fr 1.3fr;
  gap: 2.2rem;
  align-items: center;
  min-height: 38vh;
  margin-bottom: 1.4rem;
  padding: 2.8rem 2.6rem;
  box-shadow: 0 -14px 44px -30px rgba(26, 24, 20, 0.4);
}
.stack .stack-card:nth-child(1) { top: 5.5rem; }
.stack .stack-card:nth-child(2) { top: 6.4rem; }
.stack .stack-card:nth-child(3) { top: 7.3rem; }
.stack .stack-card:nth-child(4) { top: 8.2rem; }
.stack .stack-card:hover { transform: none; }
.stack .stack-card .card-num { font-size: 2.4rem; }
.stack .stack-card h3 {
  font-size: clamp(1.4rem, 2.1vw, 2rem);
  margin: 0;
}
@media (max-width: 760px) {
  /* mantém a pilha sticky no mobile (mesmo efeito do desktop): só ajusta o
     layout interno do card para uma coluna, sem desligar o sticky nem zerar
     o min-height (é o min-height que dá o scroll para um card cobrir o outro) */
  .stack .stack-card {
    grid-template-columns: 1fr;
    gap: 0.8rem;
    padding: 2.2rem 1.9rem;
  }
}

/* -- segmentos ---------------------------------------------- */
.segment-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 280px;
}
.segment-card .tag {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
}
.segment-card .tag.soon {
  background: rgba(139, 115, 85, 0.12);
  color: var(--sepia);
}
.segment-card .go {
  margin-top: 1.5rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent);
}
.segment-card.disabled { opacity: 0.55; pointer-events: none; }

/* -- método (timeline) -------------------------------------- */
.steps {
  margin: 3.5rem auto 0;
  max-width: 880px;
  display: grid;
  gap: 0;
  text-align: left;
}
.step {
  display: grid;
  grid-template-columns: 104px 1fr 150px;
  gap: 2rem;
  padding: 2.4rem 0;
  border-top: 1px solid rgba(26, 24, 20, 0.12);
  align-items: center;
}
.step:last-child { border-bottom: 1px solid rgba(26, 24, 20, 0.12); }

/* -- ícones sketch das etapas: desenham-se ao entrar e ganham
      um movimento contínuo discreto depois de prontos -------- */
.step-icon { width: 116px; justify-self: center; }
.step-icon svg { display: block; width: 100%; height: auto; overflow: visible; }
.step-icon .ink,
.step-icon .sep,
.step-icon .fade {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.step-icon .ink { stroke: var(--ink); stroke-width: 2.2; opacity: 0.8; }
.step-icon .sep { stroke: var(--sepia); stroke-width: 2; opacity: 0.7; }
.step-icon .fade { stroke: var(--sepia); stroke-width: 2; opacity: 0.7; }
.step-icon .pulse { fill: var(--accent); stroke: none; opacity: 0; }

/* loops (ativados via .icon-live quando o traço termina de se desenhar) */
.step-icon .lupa,
.step-icon .compasso,
.step-icon .gear-a,
.step-icon .gear-b,
.step-icon .pulse { transform-box: fill-box; transform-origin: center; }
.step-icon .compasso { transform-origin: 50% 13%; } /* pivô na dobradiça */

.icon-live .lupa { animation: icon-scan 5.5s ease-in-out infinite; }
.icon-live .compasso { animation: icon-pivot 4.5s ease-in-out infinite; }
.icon-live .gear-a { animation: icon-spin 10s linear infinite; }
.icon-live .gear-b { animation: icon-spin-rev 6.5s linear infinite; }
.icon-live .dash-flow { animation: icon-dash 1.8s linear infinite; }
.icon-live .pulse { animation: icon-pulse 2.4s ease-out infinite; }

@keyframes icon-scan {
  0%, 100% { transform: translate(0, 0); }
  35% { transform: translate(7px, -4px); }
  70% { transform: translate(-5px, 4px); }
}
@keyframes icon-pivot {
  0%, 100% { transform: rotate(-4deg); }
  50% { transform: rotate(4deg); }
}
@keyframes icon-spin { to { transform: rotate(360deg); } }
@keyframes icon-spin-rev { to { transform: rotate(-360deg); } }
@keyframes icon-dash { to { stroke-dashoffset: -24; } }
@keyframes icon-pulse {
  0% { transform: scale(0.4); opacity: 0.65; }
  70%, 100% { transform: scale(1.7); opacity: 0; }
}
.step-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.55rem;
}
.step .step-num {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-style: italic;
  color: var(--sepia);
  line-height: 1;
}
/* anotação à margem: o tempo de cada etapa, como nota a lápis */
.step-time {
  font-family: var(--font-hand);
  font-size: 1.2rem;
  line-height: 1;
  color: var(--accent);
  white-space: nowrap;
  padding-top: 0.35rem;
  border-top: 1.5px solid rgba(43, 75, 242, 0.28);
}
.step h3 {
  font-size: var(--size-h3);
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.step p { color: var(--ink-soft); max-width: 60ch; }

/* ============================================================
   CTA final / contato
   ============================================================ */
.cta-final {
  position: relative;
  text-align: center;
}
.cta-final .section-title { margin-inline: auto; }

/* -- carimbo final: a logo real "impressa" no papel ------------
      posicionado para coincidir com o quadro final do selo 3D
      (x = 3.9 no mundo ⇒ 52vh à direita do centro; o swap acontece
      com o topo da seção a 15vh ⇒ centro vertical em 37vh) */
.logo-stamp {
  position: absolute;
  left: calc(50% + 52vh);
  top: 37vh;
  width: 72vh;
  transform: translate(-50%, -50%) rotate(-2.5deg);
  pointer-events: none;
  z-index: -1; /* atrás de todo o conteúdo da seção, acima do canvas */
}
.logo-stamp img {
  display: block;
  width: 100%;
  height: auto;
  opacity: 0;               /* revelado no swap 3D → carimbo (scene.js) */
  mix-blend-mode: multiply; /* tinta assentando sobre o papel/grid */
}
@media (max-width: 760px) { .logo-stamp { display: none; } }
/* halo de papel: o selo 3D grande assenta atrás do formulário */
.cta-final .section-intro,
.contact-form label,
.form-feedback,
.email-line {
  text-shadow: 0 0 8px var(--paper), 0 0 18px var(--paper), 0 0 32px var(--paper);
}
.cta-final .hero-ctas { justify-content: center; }
/* -- formulário de diagnóstico -------------------------------- */
.contact-form {
  position: relative;
  z-index: 2;
  max-width: 620px;
  margin: 2.8rem auto 0;
  display: grid;
  gap: 1.1rem;
  text-align: left;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
}
.contact-form label {
  display: grid;
  gap: 0.45rem;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.contact-form input,
.contact-form textarea {
  padding: 0.9rem 1.05rem;
  border-radius: 10px;
  border: 1.5px solid rgba(26, 24, 20, 0.18);
  background: color-mix(in srgb, var(--paper) 35%, white 65%);
  font: inherit;
  font-size: 0.98rem;
  color: var(--ink);
  transition: border-color 0.3s, box-shadow 0.3s;
  resize: vertical;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: rgba(74, 69, 60, 0.45); }
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.contact-form .btn {
  justify-self: center;
  margin-top: 0.5rem;
}
.form-feedback {
  text-align: center;
  font-size: 0.95rem;
  color: var(--accent);
  min-height: 1.4em;
}
@media (max-width: 560px) {
  .form-row { grid-template-columns: 1fr; }
}

.cta-final .email-line {
  margin-top: 2rem;
  font-family: var(--font-hand);
  font-size: 1.35rem;
  color: var(--sepia);
}
.cta-final .email-line a {
  color: var(--accent);
  border-bottom: 1px dashed var(--accent);
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  border-top: 1px solid rgba(26, 24, 20, 0.12);
  padding: 2.5rem 0;
  font-size: 0.88rem;
  color: var(--ink-soft);
}
.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.site-footer .brand { font-size: 1.1rem; }
.site-footer .brand svg, .site-footer .brand img { width: 30px; height: 30px; }

/* ============================================================
   Página ONGs
   ============================================================ */
.hero-segment { min-height: 88svh; }
.hero-segment .hero-kicker { color: var(--accent); font-family: var(--font-tech); font-size: 0.85rem; letter-spacing: 0.2em; text-transform: uppercase; }

.usecase-list { margin: 3.5rem auto 0; max-width: 880px; display: grid; gap: 1.2rem; text-align: left; }
.usecase {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 1.4rem;
  padding: 1.8rem;
  border-radius: var(--radius);
  border: 1px solid rgba(26, 24, 20, 0.1);
  background: color-mix(in srgb, var(--paper) 55%, white 45%);
  transition: border-color 0.35s, transform 0.35s var(--ease);
}
.usecase:hover { border-color: rgba(43, 75, 242, 0.3); transform: translateX(6px); }
.usecase .icon {
  width: 46px; height: 46px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 1.3rem;
}
.usecase h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 0.3rem; }
.usecase p { color: var(--ink-soft); font-size: 0.95rem; }

/* ============================================================
   Animações de entrada (estado inicial via JS .will-reveal)
   ============================================================ */
.will-reveal { opacity: 0; transform: translateY(36px); }

/* ============================================================
   Responsivo
   ============================================================ */
@media (max-width: 760px) {
  .nav-links {
    position: fixed;
    inset: 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    font-size: 1.3rem;
    background: var(--paper);
    transform: translateY(-100%);
    /* esconde de verdade enquanto fechado: visibility:hidden nunca pinta,
       mesmo se um ancestral transformado tornar o fixed relativo a ele.
       o delay de 0.5s mantém o menu visível durante a animação de fechar. */
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.5s var(--ease), visibility 0s linear 0.5s;
    z-index: 90;
  }
  .nav-links.open {
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
    transition: transform 0.5s var(--ease);
  }
  .nav-toggle {
    display: block;
    z-index: 95;
    background: none;
    border: none;
    cursor: pointer;
    width: 34px; height: 26px;
    position: relative;
  }
  .nav-toggle span, .nav-toggle::before, .nav-toggle::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%; height: 2px;
    background: var(--ink);
    transition: all 0.35s var(--ease);
  }
  .nav-toggle::before { top: 4px; }
  .nav-toggle span { top: 12px; }
  .nav-toggle::after { top: 20px; }
  .nav-toggle.open::before { top: 12px; transform: rotate(45deg); }
  .nav-toggle.open span { opacity: 0; }
  .nav-toggle.open::after { top: 12px; transform: rotate(-45deg); }

  .step { grid-template-columns: 1fr; gap: 0.6rem; }
  .step-icon { width: 88px; justify-self: start; margin-top: 0.4rem; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .will-reveal { opacity: 1; transform: none; }
  .logo-stamp img { opacity: 0.9; } /* sem coreografia, o carimbo fica fixo */
}