/* ============================================================
   DeCarbonMine — Aestra-inspired design system
   Type: Hanken Grotesk (grotesk) + Fraunces (editorial serif)
   Palette: petrol #123840 · orange #fd6e2c · electric #4332fc
   ============================================================ */

:root {
  /* Aestra-derived palette */
  --petrol: #123840;
  --petrol-deep: #0c1728;
  --petrol-soft: #1d4a52;
  --orange: #fd6e2c;
  --orange-dark: #fa621b;
  --electric: #4332fc;

  /* Tints (Aestra pastel section backgrounds) */
  --tint-green: #c7edc2;
  --tint-cream: #fdf3ed;
  --tint-teal: #c0e9e8;
  --tint-sage: #e1e7be;

  --white: #ffffff;
  --paper: #faf9f6;
  --light-grey: #f4f4f4;
  --medium-grey: #e0e0e0;
  --ink: #123840;
  --ink-60: rgba(18, 56, 64, 0.80); /* WCAG AA: ~5.7:1 on paper */
  --ink-40: rgba(18, 56, 64, 0.55);
  --on-dark: #eef3f1;
  --on-dark-60: rgba(238, 243, 241, 0.62);

  --font-body: "Hanken Grotesk", system-ui, sans-serif;
  --font-serif: "Fraunces", Georgia, serif;

  --maxw: 1240px;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --radius: 18px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 90px; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
em { font-style: italic; }

::selection { background: var(--orange); color: var(--white); }

/* Keyboard accessibility — visible focus rings */
:focus-visible {
  outline: 2.5px solid var(--orange);
  outline-offset: 3px;
  border-radius: 4px;
}
.hero :focus-visible, .section--solution :focus-visible, .section--cta :focus-visible, .footer :focus-visible {
  outline-color: var(--tint-green);
}

/* Skip link (keyboard accessibility) */
.skip-link {
  position: fixed; top: 0; left: 0; z-index: 10001;
  background: var(--orange); color: #fff; font-weight: 600; font-size: 0.92rem;
  padding: 0.8rem 1.3rem; border-radius: 0 0 10px 0;
  transform: translateY(-120%); transition: transform 0.25s var(--ease);
}
.skip-link:focus-visible { transform: translateY(0); outline-offset: -2px; }

/* Scroll progress bar */
.progress {
  position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 10000;
  background: linear-gradient(90deg, var(--orange), var(--electric));
  transform: scaleX(0); transform-origin: 0 50%; will-change: transform;
}

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

/* ---------- Grain overlay ---------- */
.grain {
  position: fixed; inset: 0; z-index: 9999; pointer-events: none;
  opacity: 0.035; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease), backdrop-filter 0.4s;
}
.nav__inner {
  max-width: var(--maxw); margin-inline: auto;
  padding: 1.4rem var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 2rem;
}
.nav.is-scrolled {
  background: rgba(250, 249, 246, 0.82);
  backdrop-filter: blur(14px) saturate(1.2);
  box-shadow: 0 1px 0 rgba(18, 56, 64, 0.08);
}
.nav.is-scrolled .nav__inner { padding-block: 0.9rem; }

/* Logo — image swap between light (over dark hero) and dark (scrolled bar) */
.nav__logo { display: inline-grid; align-items: center; }
.nav__logo img { grid-area: 1 / 1; height: 34px; width: auto; transition: opacity 0.4s var(--ease), transform 0.5s var(--ease); }
.nav__logo-dark { opacity: 0; }
.nav.is-scrolled .nav__logo-light { opacity: 0; }
.nav.is-scrolled .nav__logo-dark { opacity: 1; }
.nav__logo:hover img { transform: translateY(-1px); }

.nav__right { display: flex; align-items: center; gap: 1.6rem; }
.nav__links { display: flex; gap: 1.8rem; }
.nav__links a {
  font-size: 0.92rem; font-weight: 500; color: var(--on-dark-60);
  position: relative; padding-block: 2px; transition: color 0.3s;
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 1.5px; width: 0;
  background: var(--orange); transition: width 0.35s var(--ease);
}
.nav__links a:hover { color: var(--on-dark); }
.nav__links a[aria-current="page"] { color: var(--on-dark); }
.nav__links a[aria-current="page"]::after { width: 100%; }
.nav.is-scrolled .nav__links a { color: var(--ink-60); }
.nav.is-scrolled .nav__links a:hover,
.nav.is-scrolled .nav__links a[aria-current="page"] { color: var(--petrol); }
.nav__links a:hover::after { width: 100%; }

.nav__actions { display: flex; align-items: center; gap: 1rem; }

/* Language toggle */
.lang {
  background: none; border: 1.5px solid rgba(238,243,241,0.34); cursor: pointer;
  color: var(--on-dark); font-family: inherit; font-weight: 600; font-size: 0.78rem;
  letter-spacing: 0.06em; padding: 0.4rem 0.7rem; border-radius: 100px;
  transition: color 0.35s, border-color 0.35s, background 0.35s;
}
.lang:hover { border-color: var(--orange); color: var(--orange); }
.nav.is-scrolled .lang { border-color: rgba(18,56,64,0.28); color: var(--petrol); }
.nav.is-scrolled .lang:hover { border-color: var(--orange); color: var(--orange); }

/* CTA pill — orange reads on both dark hero and light bar */
.nav__cta { background: var(--orange); color: var(--white); }
.nav__cta:hover { background: var(--white); color: var(--petrol); }
.nav.is-scrolled .nav__cta { background: var(--petrol); color: var(--on-dark); }
.nav.is-scrolled .nav__cta:hover { background: var(--orange); color: var(--white); }

.nav__burger { display: none; background: none; border: 0; cursor: pointer; flex-direction: column; gap: 5px; padding: 4px; }
.nav__burger span { width: 26px; height: 2px; background: var(--on-dark); transition: transform 0.3s, opacity 0.3s, background 0.4s; }
.nav.is-scrolled .nav__burger span { background: var(--petrol); }
.nav.is-open .nav__burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.is-open .nav__burger span:nth-child(2) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-weight: 600; font-size: 0.95rem; letter-spacing: 0.01em;
  padding: 0.95rem 1.6rem; border-radius: 100px; cursor: pointer;
  transition: transform 0.35s var(--ease), background 0.35s, color 0.35s, box-shadow 0.35s;
  white-space: nowrap; will-change: transform;
}
.btn .arrow { transition: transform 0.35s var(--ease); }
.btn:hover .arrow { transform: translateX(5px); }

.btn--solid { background: var(--petrol); color: var(--on-dark); }
.btn--solid:hover { background: var(--orange); color: var(--white); transform: translateY(-2px); box-shadow: 0 14px 30px -12px rgba(253, 110, 44, 0.6); }

.btn--ghost { background: transparent; color: var(--petrol); border: 1.5px solid rgba(18, 56, 64, 0.22); }
.btn--ghost:hover { border-color: var(--petrol); transform: translateY(-2px); }

.btn--pill { background: var(--petrol); color: var(--on-dark); padding: 0.7rem 1.3rem; font-size: 0.88rem; }
.btn--pill:hover { background: var(--orange); transform: translateY(-2px); }

.btn--lg { padding: 1.2rem 2.2rem; font-size: 1.05rem; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative; min-height: 100vh;
  background: var(--petrol);
  color: var(--on-dark);
  display: flex; flex-direction: column; justify-content: center;
  padding: 9rem var(--gutter) 4rem;
  overflow: hidden;
}
.hero__glow {
  position: absolute; inset: -20%;
  background:
    radial-gradient(40% 50% at 78% 22%, rgba(253, 110, 44, 0.30), transparent 70%),
    radial-gradient(45% 55% at 12% 80%, rgba(67, 50, 252, 0.32), transparent 70%),
    radial-gradient(50% 50% at 50% 50%, rgba(192, 233, 232, 0.10), transparent 75%);
  filter: blur(20px);
  animation: drift 22s ease-in-out infinite alternate;
}
@keyframes drift {
  0%   { transform: translate3d(0,0,0) scale(1); }
  50%  { transform: translate3d(2%, -2%, 0) scale(1.08); }
  100% { transform: translate3d(-2%, 1%, 0) scale(1.04); }
}
.hero__inner { position: relative; z-index: 2; max-width: var(--maxw); margin-inline: auto; width: 100%; }

/* Video background */
.hero__media {
  position: absolute; inset: 0; z-index: 0; overflow: hidden;
  background: var(--petrol) url("assets/hero-poster.jpg") center/cover no-repeat;
}
.hero__video {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  opacity: 0; transition: opacity 1.2s var(--ease);
}
.hero__video.is-playing { opacity: 1; }
.hero__overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(18,56,64,0.50) 0%, rgba(18,56,64,0.32) 38%, rgba(12,23,40,0.82) 100%),
    linear-gradient(90deg, rgba(18,56,64,0.62) 0%, rgba(18,56,64,0.10) 62%);
}
.hero--video .hero__scroll { z-index: 2; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-size: 0.82rem; font-weight: 500; letter-spacing: 0.04em;
  text-transform: uppercase; color: var(--on-dark-60); margin-bottom: 2rem;
}
.eyebrow__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 4px rgba(253,110,44,0.18); }

.hero__title {
  font-weight: 800; letter-spacing: -0.03em; line-height: 0.98;
  font-size: clamp(2.6rem, 8vw, 6.6rem);
  text-transform: uppercase; margin-bottom: 2rem;
}
.hero__title .line { display: block; }
.hero__title em {
  font-family: var(--font-serif); font-weight: 400; font-style: italic;
  text-transform: none; letter-spacing: -0.01em; color: var(--tint-green);
}
.hero__lede {
  max-width: 46ch; font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  color: var(--on-dark-60); line-height: 1.6; margin-bottom: 2.6rem;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.hero__actions .btn--solid { background: var(--white); color: var(--petrol); }
.hero__actions .btn--solid:hover { background: var(--orange); color: var(--white); }
.hero__actions .btn--ghost { color: var(--on-dark); border-color: rgba(238,243,241,0.28); }
.hero__actions .btn--ghost:hover { border-color: var(--on-dark); }

.hero__scroll {
  position: absolute; bottom: 2.2rem; left: var(--gutter);
  display: flex; align-items: center; gap: 0.8rem;
  font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--on-dark-60);
}
.hero__scroll-line { width: 60px; height: 1px; background: var(--on-dark-60); position: relative; overflow: hidden; }
.hero__scroll-line::after { content: ""; position: absolute; inset: 0; background: var(--orange); animation: sweep 2.4s var(--ease) infinite; }
@keyframes sweep { 0% { transform: translateX(-100%);} 60%,100% { transform: translateX(100%);} }

/* ============================================================
   SECTIONS — shared
   ============================================================ */
.section { padding-block: clamp(5rem, 11vw, 9rem); position: relative; }
.section__head { max-width: 70ch; margin-bottom: clamp(3rem, 6vw, 5rem); }
.section__head--center { margin-inline: auto; text-align: center; }
.section__index {
  display: inline-block; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--orange); margin-bottom: 1.4rem;
}
.section__index--light { color: var(--tint-green); }
.section__title {
  font-weight: 800; letter-spacing: -0.025em; line-height: 1.04;
  font-size: clamp(2rem, 4.6vw, 3.6rem); text-transform: uppercase;
}
.section__title em {
  font-family: var(--font-serif); font-weight: 400; font-style: italic;
  text-transform: none; letter-spacing: -0.01em; color: var(--orange);
}
.section__title--light { color: var(--on-dark); }
.section__title--light em { color: var(--tint-green); }
.section__intro {
  margin-top: 1.6rem; font-size: clamp(1.02rem, 1.5vw, 1.22rem);
  color: var(--ink-60); max-width: 58ch; line-height: 1.65;
}
.section__head--center .section__intro { margin-inline: auto; }
.section__intro--light { color: var(--on-dark-60); }

/* ---------- O Problema ---------- */
.section--problem { background: var(--paper); }
.problem-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: clamp(1rem, 2vw, 1.6rem); margin-bottom: clamp(3rem, 6vw, 5rem);
}
.problem-card {
  background: var(--white); border: 1px solid var(--medium-grey);
  border-radius: var(--radius); padding: 2.2rem;
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease), border-color 0.45s;
}
.problem-card:hover { transform: translateY(-4px); box-shadow: 0 24px 50px -28px rgba(18,56,64,0.35); border-color: var(--petrol); }
.problem-card__num {
  display: block; font-family: var(--font-serif); font-style: italic;
  font-size: 2.2rem; color: var(--orange); margin-bottom: 1rem; line-height: 1;
}
.problem-card p { color: var(--ink-60); font-size: 1.02rem; }

/* The gap diagram */
.gap {
  background: var(--petrol); color: var(--on-dark);
  border-radius: calc(var(--radius) + 6px); padding: clamp(2rem, 4vw, 3.4rem);
  text-align: center;
}
.gap__label { display: block; font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--tint-green); margin-bottom: 2rem; }
.gap__flow { display: flex; flex-wrap: wrap; align-items: stretch; justify-content: center; gap: 0.9rem; margin-bottom: 2rem; }
.gap__node {
  flex: 1 1 180px; min-width: 150px; display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 1.1rem 1.2rem; border-radius: 12px;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(238,243,241,0.16);
  font-weight: 600; font-size: 0.98rem;
}
.gap__node--break { background: rgba(253,110,44,0.16); border-color: var(--orange); color: var(--orange); font-style: italic; font-family: var(--font-serif); }
.gap__node--asset { background: var(--tint-green); color: var(--petrol); border-color: var(--tint-green); }
.gap__arrow { display: flex; align-items: center; color: var(--on-dark-60); font-size: 1.3rem; }
.gap__note { max-width: 60ch; margin-inline: auto; color: var(--on-dark-60); }

/* ---------- Para Quem ---------- */
.section--audience { background: var(--tint-cream); }
.audience-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: clamp(1rem, 1.6vw, 1.4rem); margin-bottom: 3rem;
}
.aud-card {
  background: var(--white); border-radius: var(--radius); padding: 1.8rem;
  border: 1px solid transparent;
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease), border-color 0.45s;
}
.aud-card:hover { transform: translateY(-5px); box-shadow: 0 26px 50px -30px rgba(18,56,64,0.4); border-color: var(--medium-grey); }
.aud-card__icon {
  width: 46px; height: 46px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--tint-cream); color: var(--petrol);
  margin-bottom: 1.15rem;
  transition: background 0.45s var(--ease), color 0.45s var(--ease);
}
.aud-card__icon svg { width: 23px; height: 23px; }
.aud-card:hover .aud-card__icon { background: var(--petrol); color: var(--tint-cream); }
.aud-card h3 { font-size: 1.12rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 0.7rem; }
.aud-card p { font-size: 0.94rem; color: var(--ink-60); }

.aud-qual {
  background: var(--petrol); color: var(--on-dark);
  border-radius: var(--radius);
  padding: clamp(2rem, 3.5vw, 3rem);
  display: grid; grid-template-columns: 1fr 2fr; gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}
.aud-qual__label {
  font-family: var(--font-serif); font-weight: 500;
  font-size: clamp(1.3rem, 2.2vw, 1.7rem); line-height: 1.25;
  color: var(--on-dark);
}
.chips { display: flex; flex-wrap: wrap; gap: 0.7rem; }
.chip {
  font-size: 0.86rem; font-weight: 500; padding: 0.55rem 1.1rem;
  border-radius: 100px;
  background: rgba(238, 243, 241, 0.08); border: 1px solid rgba(238, 243, 241, 0.20);
  color: var(--on-dark); transition: background 0.3s, color 0.3s, border-color 0.3s, transform 0.3s;
}
.chip:hover { background: var(--orange); color: #fff; border-color: var(--orange); transform: translateY(-2px); }

/* ---------- Parceiros (logo wall) ---------- */
.section--partners { background: var(--paper); padding-block: clamp(3rem, 6vw, 4.5rem); border-bottom: 1px solid var(--medium-grey); }
.partners__label { text-align: center; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--orange); margin-bottom: 2.4rem; }
.partners__grid {
  list-style: none; display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--medium-grey); border: 1px solid var(--medium-grey);
  border-radius: var(--radius); overflow: hidden;
}
.partner {
  background: var(--white); display: flex; align-items: center; justify-content: center;
  min-height: 110px; padding: 1.4rem 1.2rem; transition: background 0.35s var(--ease);
}
.partner:hover { background: var(--light-grey); }
.partner__logo {
  max-height: 46px; max-width: 80%; width: auto; object-fit: contain;
  filter: grayscale(1); opacity: 0.62;
  transition: filter 0.4s var(--ease), opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.partner:hover .partner__logo { filter: grayscale(0); opacity: 1; transform: scale(1.04); }

/* ---------- Vídeo (player dedicado) ---------- */
.section--video { background: var(--petrol-deep); color: var(--on-dark); }
.video-player {
  position: relative; max-width: 1000px; margin-inline: auto;
  aspect-ratio: 16 / 9; border-radius: calc(var(--radius) + 6px); overflow: hidden;
  background: var(--petrol); box-shadow: 0 44px 100px -44px rgba(0,0,0,0.75);
}
.video-player__video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.video-player__play {
  position: absolute; inset: 0; margin: auto; width: 90px; height: 90px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; cursor: pointer; border: 0;
  background: rgba(253,110,44,0.96); color: #fff;
  box-shadow: 0 14px 44px -8px rgba(253,110,44,0.6);
  transition: transform 0.35s var(--ease), background 0.35s, opacity 0.4s var(--ease);
}
.video-player__play svg { margin-left: 4px; }
.video-player__play::before {
  content: ""; position: absolute; inset: -10px; border-radius: 50%;
  border: 2px solid rgba(253,110,44,0.5); animation: vpulse 2.4s ease-out infinite;
}
.video-player__play:hover { transform: scale(1.08); background: var(--orange); }
.video-player.is-playing .video-player__play { opacity: 0; pointer-events: none; transform: scale(0.5); }
@keyframes vpulse { 0% { transform: scale(1); opacity: 0.7; } 100% { transform: scale(1.55); opacity: 0; } }

/* ---------- Legal pages ---------- */
.legal { max-width: 760px; }
.legal__updated { color: var(--ink-40); font-size: 0.9rem; margin-bottom: 2rem; }
.legal h2 { font-size: clamp(1.15rem, 2.4vw, 1.55rem); font-weight: 700; letter-spacing: -0.01em; margin: 2.4rem 0 0.8rem; }
.legal p { color: var(--ink-60); margin-bottom: 1rem; line-height: 1.7; }
.legal ul { margin: 0 0 1rem 1.2rem; color: var(--ink-60); display: flex; flex-direction: column; gap: 0.5rem; line-height: 1.6; }
.legal strong { color: var(--ink); }
.legal a { color: var(--orange); text-decoration: underline; }
.legal__note { font-size: 0.88rem; color: var(--ink-40); margin-top: 2rem; font-style: italic; }

/* ---------- 404 ---------- */
.notfound { min-height: 80vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 8rem var(--gutter) 4rem; background: var(--petrol); color: var(--on-dark); }
.notfound__code { font-family: var(--font-serif); font-style: italic; font-size: clamp(5rem, 18vw, 12rem); line-height: 1; color: var(--tint-green); }
.notfound h1 { font-size: clamp(1.6rem, 4vw, 2.6rem); font-weight: 800; text-transform: uppercase; letter-spacing: -0.02em; margin: 1rem 0; }
.notfound p { color: var(--on-dark-60); max-width: 44ch; margin: 0 auto 2.2rem; }

/* ---------- Consent banner ---------- */
.consent {
  position: fixed; left: 50%; bottom: 1.2rem; transform: translate(-50%, 160%); opacity: 0;
  z-index: 10002; width: min(700px, calc(100% - 2rem));
  background: var(--petrol-deep); color: var(--on-dark);
  border: 1px solid rgba(238,243,241,0.14); border-radius: 16px;
  padding: 1.1rem 1.3rem; display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap;
  box-shadow: 0 30px 70px -30px rgba(0,0,0,0.7);
  transition: transform 0.45s var(--ease), opacity 0.45s var(--ease);
}
.consent.is-in { transform: translate(-50%, 0); opacity: 1; }
.consent__text { font-size: 0.9rem; color: var(--on-dark-60); flex: 1 1 300px; line-height: 1.5; }
.consent__text a { color: var(--tint-green); text-decoration: underline; }
.consent__actions { display: flex; gap: 0.7rem; }
.consent .btn { padding: 0.62rem 1.2rem; font-size: 0.88rem; }
.consent__decline { background: transparent; color: var(--on-dark); border: 1.5px solid rgba(238,243,241,0.3); }
.consent__decline:hover { border-color: var(--on-dark); }
.consent__accept { background: var(--orange); color: #fff; }
@media (max-width: 560px) {
  .consent { flex-direction: column; align-items: stretch; }
  .consent__actions { justify-content: stretch; }
  .consent .btn { flex: 1; justify-content: center; }
}

/* ---------- Solução (dark) ---------- */
.section--solution { background: var(--petrol-deep); color: var(--on-dark); }
.pillars {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.pillar {
  border-top: 2px solid rgba(238,243,241,0.18); padding-top: 1.4rem;
  transition: border-color 0.4s;
}
.pillar:hover { border-color: var(--orange); }
.pillar p { font-size: 1rem; color: var(--on-dark-60); }
.pillar strong { color: var(--on-dark); font-weight: 700; }

.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.service {
  position: relative; overflow: hidden;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(238,243,241,0.12);
  border-radius: var(--radius); padding: 2rem;
  transition: transform 0.45s var(--ease), background 0.45s, border-color 0.45s;
}
.service::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--orange), var(--tint-green));
  transform: scaleX(0); transform-origin: 0 50%; transition: transform 0.5s var(--ease);
}
.service::after {
  content: "\2197"; position: absolute; top: 1.4rem; right: 1.5rem;
  font-size: 1.1rem; color: var(--tint-green);
  opacity: 0; transform: translate(-6px, 6px); transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.service:hover { transform: translateY(-5px); background: rgba(255,255,255,0.07); border-color: var(--orange); }
.service:hover::before { transform: scaleX(1); }
.service:hover::after { opacity: 1; transform: translate(0, 0); }
.service__tag {
  display: inline-block; font-weight: 700; font-size: 1.05rem; letter-spacing: -0.01em;
  color: var(--tint-green); margin-bottom: 0.9rem;
}
.service p { font-size: 0.96rem; color: var(--on-dark-60); }

/* ---------- Como Atuamos ---------- */
.section--layers { background: var(--paper); }
.layers { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; }
.layer {
  background: var(--white); border: 1px solid var(--medium-grey);
  border-radius: var(--radius); padding: 2rem 1.8rem;
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease);
}
.layer:hover { transform: translateY(-5px); box-shadow: 0 26px 54px -30px rgba(18,56,64,0.4); }
.layer__head { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.4rem; padding-bottom: 1.4rem; border-bottom: 1px solid var(--medium-grey); }
.layer__index { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--orange); }
.layer__head h3 { font-family: var(--font-serif); font-weight: 500; font-size: 1.32rem; line-height: 1.2; letter-spacing: -0.01em; color: var(--ink); }
.layer ul { list-style: none; display: flex; flex-direction: column; gap: 0.7rem; }
.layer li { position: relative; padding-left: 1.2rem; font-size: 0.95rem; color: var(--ink-60); }
.layer li::before { content: ""; position: absolute; left: 0; top: 0.6em; width: 6px; height: 6px; border-radius: 50%; background: var(--orange); }

/* ---------- Flywheel ---------- */
.section--flywheel { background: var(--tint-teal); }
.flywheel { display: flex; align-items: stretch; justify-content: center; flex-wrap: wrap; gap: 1.2rem; }
.fly-step {
  flex: 1 1 220px; background: var(--white); border-radius: var(--radius);
  padding: 2rem; max-width: 280px;
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease);
}
.fly-step:hover { transform: translateY(-6px); box-shadow: 0 28px 54px -30px rgba(18,56,64,0.45); }
.fly-step__num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border-radius: 50%; background: var(--petrol); color: var(--on-dark);
  font-weight: 700; margin-bottom: 1.2rem;
}
.fly-step h3 { font-size: 1.2rem; font-weight: 700; text-transform: uppercase; letter-spacing: -0.01em; margin-bottom: 0.6rem; }
.fly-step p { font-size: 0.94rem; color: var(--ink-60); }
.fly-link { display: flex; align-items: center; font-size: 1.6rem; color: var(--petrol); opacity: 0.4; }

/* ---------- CTA ---------- */
.section--cta { background: var(--petrol); color: var(--on-dark); }
.cta { text-align: center; max-width: 56ch; margin-inline: auto; }
.cta__title {
  font-weight: 800; letter-spacing: -0.025em; line-height: 1.04;
  font-size: clamp(2.2rem, 5.5vw, 4.4rem); text-transform: uppercase; margin: 1.2rem 0 1.5rem;
}
.cta__title em { font-family: var(--font-serif); font-weight: 400; font-style: italic; text-transform: none; color: var(--tint-green); }
.cta__lede { color: var(--on-dark-60); font-size: 1.15rem; margin-bottom: 2.6rem; }
.cta .btn--solid { background: var(--orange); color: var(--white); }
.cta .btn--solid:hover { background: var(--white); color: var(--petrol); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { background: var(--petrol-deep); color: var(--on-dark-60); padding-block: 4rem; }
.footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2rem; align-items: center; }
.footer__brand .nav__logo-text { color: var(--on-dark); }
.footer__brand .nav__logo-text span { color: var(--orange); }
.footer__brand p { margin-top: 0.6rem; font-size: 0.92rem; max-width: 32ch; }
.footer__nav { display: flex; gap: 1.8rem; }
.footer__nav a { font-size: 0.92rem; transition: color 0.3s; }
.footer__nav a:hover { color: var(--orange); }
.footer__meta { font-size: 0.85rem; }
.footer__logo img { height: 30px; width: auto; margin-bottom: 0.8rem; }

/* ============================================================
   SUBPAGE HEADER (compact dark hero)
   ============================================================ */
.page-header {
  position: relative; background: var(--petrol); color: var(--on-dark);
  padding: 11rem var(--gutter) clamp(4rem, 8vw, 6rem); overflow: hidden;
}
.page-header__glow {
  position: absolute; inset: -30%;
  background:
    radial-gradient(38% 60% at 82% 10%, rgba(253,110,44,0.26), transparent 70%),
    radial-gradient(42% 60% at 8% 90%, rgba(67,50,252,0.28), transparent 72%);
  filter: blur(18px); animation: drift 24s ease-in-out infinite alternate;
}
.page-header__inner { position: relative; max-width: var(--maxw); margin-inline: auto; }
.page-header__title {
  font-weight: 800; letter-spacing: -0.03em; line-height: 1.0;
  font-size: clamp(2.4rem, 6vw, 5rem); text-transform: uppercase; margin: 1.2rem 0 1.4rem; max-width: 18ch;
}
.page-header__title em { font-family: var(--font-serif); font-weight: 400; font-style: italic; text-transform: none; color: var(--tint-green); }
.page-header__lede { max-width: 52ch; font-size: clamp(1.05rem, 1.6vw, 1.28rem); color: var(--on-dark-60); line-height: 1.6; }

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.contact__info { display: flex; flex-direction: column; gap: 2rem; }
.info-item { border-top: 1.5px solid var(--medium-grey); padding-top: 1.2rem; }
.info-item__label { display: block; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--orange); margin-bottom: 0.5rem; }
.info-item__value { font-size: 1.05rem; color: var(--ink); }
.info-item a.info-item__value { transition: color 0.3s; }
.info-item a.info-item__value:hover { color: var(--orange); }

.form {
  background: var(--white); border: 1px solid var(--medium-grey);
  border-radius: calc(var(--radius) + 4px); padding: clamp(1.6rem, 3vw, 2.6rem);
  box-shadow: 0 30px 70px -50px rgba(18,56,64,0.4);
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.field { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.2rem; }
.field label { font-size: 0.88rem; font-weight: 600; color: var(--ink); }
.field input, .field select, .field textarea {
  font-family: inherit; font-size: 1rem; color: var(--ink);
  background: var(--paper); border: 1.5px solid var(--medium-grey); border-radius: 12px;
  padding: 0.85rem 1rem; transition: border-color 0.3s, box-shadow 0.3s; width: 100%;
}
.field textarea { resize: vertical; min-height: 140px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--petrol); box-shadow: 0 0 0 4px rgba(18,56,64,0.10);
}
.field input::placeholder, .field textarea::placeholder { color: var(--ink-40); }
.field[data-invalid="true"] input,
.field[data-invalid="true"] select,
.field[data-invalid="true"] textarea { border-color: #c02b0a; box-shadow: 0 0 0 4px rgba(192,43,10,0.10); }
.field__error { font-size: 0.8rem; color: #c02b0a; min-height: 1em; }
.form__submit { width: 100%; justify-content: center; margin-top: 0.4rem; }
.form__submit[disabled] { opacity: 0.6; cursor: progress; }
.form__status { margin-top: 1rem; font-size: 0.95rem; border-radius: 12px; padding: 0.9rem 1.1rem; display: none; }
.form__status.is-success { display: block; background: var(--tint-green); color: var(--petrol); }
.form__status.is-error { display: block; background: #fdece6; color: #c02b0a; }

/* ============================================================
   MOBILE NAV DRAWER
   ============================================================ */
.nav__menu { display: contents; }
@media (max-width: 860px) {
  .nav__menu {
    display: flex; flex-direction: column; gap: 1.4rem; align-items: flex-start;
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(250,249,246,0.97); backdrop-filter: blur(16px);
    padding: 1.6rem var(--gutter) 2rem; box-shadow: 0 16px 40px -22px rgba(18,56,64,0.45);
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  }
  .nav.is-open .nav__menu { opacity: 1; transform: none; pointer-events: auto; }
  .nav__menu .nav__links { flex-direction: column; gap: 1.1rem; }
  .nav__menu .nav__links a { color: var(--ink); font-size: 1.05rem; }
  .nav__menu .nav__cta { background: var(--petrol); color: var(--on-dark); align-self: stretch; text-align: center; justify-content: center; }
  .nav__burger { display: flex; }
}

/* ============================================================
   REVEAL ANIMATION
   ============================================================ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .audience-grid { grid-template-columns: repeat(2, 1fr); }
  .pillars { grid-template-columns: repeat(2, 1fr); }
  .services { grid-template-columns: repeat(2, 1fr); }
  .layers { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .contact { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .problem-grid { grid-template-columns: 1fr; }
  .audience-grid, .pillars, .services, .layers { grid-template-columns: 1fr; }
  .aud-qual { grid-template-columns: 1fr; gap: 1.5rem; text-align: left; }
  .partners__grid { grid-template-columns: repeat(2, 1fr); }
  .form__row { grid-template-columns: 1fr; gap: 0; }
  .gap__flow { flex-direction: column; }
  .gap__arrow { transform: rotate(90deg); justify-content: center; }
  .fly-link { transform: rotate(90deg); justify-content: center; width: 100%; }
  .fly-step { max-width: none; }
  .hero { padding-top: 7rem; }
  .hero__scroll { display: none; }
  .page-header { padding-top: 8rem; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}