/* =============================================================================
   VENTRAK · Clima e Conforto — "Um dia a 23°"
   main.css — design system + experiência cinematográfica (arquivo único, zero build)
   -----------------------------------------------------------------------------
   ÍNDICE
     1. Design tokens (:root)        — cores, tipografia, easing
     2. Reset & base
     3. Palco fixo (vídeos)          — .stage / .scene / crossfade / parallax
     4. HUD (hora · lugar · 23°)
     5. Barra da jornada (sol → lua)
     6. Navegação
     7. Botões
     8. Capítulos (storytelling)
     9. Hero
    10. Reveals (máscara + fade)
    11. Cards de diferenciais
    12. Stats (counters)
    13. Capítulo final
    14. Mapa de rota do litoral      — motion SVG em loop
    15. Footer
    16. WhatsApp flutuante
    17. Responsivo
    18. Acessibilidade (prefers-reduced-motion)
   -----------------------------------------------------------------------------
   Mantido como UM único arquivo de propósito: zero build step, 1 request HTTP,
   cache imutável. Não dividir sem um bundler (custaria requests e performance).
   ============================================================================= */

:root {
  --navy-deep: #0B1623;
  --navy-card: #0D2035;
  --navy-line: #1E3A52;
  --cyan: #00C5E8;
  --cyan-mist: #7ECFDF;
  --ice: #E8F4F8;
  --text-dim: #8FA8BC;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --ease-out: cubic-bezier(.22, 1, .36, 1);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  font-family: var(--font-body);
  background: var(--navy-deep);
  color: var(--ice);
  line-height: 1.6;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

img, svg, video { display: block; }
a { color: inherit; text-decoration: none; }

/* ---------- Palco fixo (vídeos da jornada) ---------- */
.stage {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: var(--navy-deep);
  overflow: hidden;
}

.scene {
  position: absolute;
  inset: -6vh 0;
  opacity: 0;
  visibility: hidden;
  will-change: opacity, transform;
}

.scene.on { visibility: visible; }

/* Cena hero visível antes do JS — garante LCP imediato */
.scene[data-scene="0"] { opacity: 1; visibility: visible; }

.scene-poster,
.scene-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scene-video {
  opacity: 0;
  transition: opacity .6s ease;
}

.scene.live .scene-video { opacity: 1; }

/* Hero (AC exploded view): show full unit on portrait mobile — other scenes stay cover */
@media (max-width: 768px) and (orientation: portrait) {
  .scene[data-scene="0"] .scene-poster,
  .scene[data-scene="0"] .scene-video,
  .scene[data-scene="6"] .scene-poster,
  .scene[data-scene="6"] .scene-video {
    object-fit: contain;
  }
}

.scene-night { filter: brightness(.5) saturate(.85); }

.stage-tint {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(11,22,35,.82) 0%, rgba(11,22,35,.38) 30%, rgba(11,22,35,.30) 62%, rgba(11,22,35,.74) 100%),
    radial-gradient(120% 90% at 18% 50%, rgba(11,22,35,.55) 0%, rgba(11,22,35,0) 55%);
  pointer-events: none;
}

/* ---------- HUD: hora · lugar · 23° ---------- */
.hud {
  position: fixed;
  top: 86px;
  right: 28px;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  border: 1px solid var(--navy-line);
  border-radius: 999px;
  background: rgba(13, 32, 53, .45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  font-family: var(--font-display);
  font-size: .82rem;
  letter-spacing: .04em;
  color: var(--ice);
  font-variant-numeric: tabular-nums;
}

.hud-sep { color: var(--navy-line); }
.hud-place { color: var(--text-dim); }
.hud-temp { color: var(--cyan); font-weight: 700; }

.hud-time, .hud-place {
  transition: opacity .3s ease, transform .3s ease;
}

.hud.swap .hud-time,
.hud.swap .hud-place {
  opacity: 0;
  transform: translateY(6px);
}

/* ---------- Barra da jornada: sol → lua ---------- */
.journey {
  position: fixed;
  left: 30px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--text-dim);
}

.journey svg { width: 15px; height: 15px; }
.j-sun { color: var(--cyan-mist); }

.j-track {
  width: 2px;
  height: 34vh;
  background: var(--navy-line);
  border-radius: 2px;
  overflow: hidden;
}

.j-fill {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, var(--cyan-mist), var(--cyan));
  transform: scaleY(0);
  transform-origin: top;
}

/* ---------- Navegação ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: background .35s ease, border-color .35s ease;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(11, 22, 35, .72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--navy-line);
}

.nav-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo { display: flex; align-items: center; gap: 10px; }
.logo-mark { width: 34px; height: 34px; }

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: .12em;
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-text small {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: .58rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--cyan);
}

.nav-links { display: flex; align-items: center; gap: 26px; }

.nav-links > a:not(.btn) {
  font-size: .9rem;
  color: var(--text-dim);
  transition: color .25s ease;
}

.nav-links > a:not(.btn):hover { color: var(--ice); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
  z-index: 60;
}

.nav-toggle span {
  width: 26px;
  height: 2px;
  background: var(--ice);
  transition: transform .3s ease, opacity .3s ease;
}

.nav-toggle.open span:first-child { transform: translateY(4px) rotate(45deg); }
.nav-toggle.open span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: .95rem;
  letter-spacing: .02em;
  cursor: pointer;
  transition: transform .25s var(--ease-out), box-shadow .3s ease, background .3s ease, border-color .3s ease;
  will-change: transform;
}

.btn-primary {
  background: var(--cyan);
  color: var(--navy-deep);
}

.btn-primary:hover {
  box-shadow: 0 8px 32px rgba(0, 197, 232, .35);
}

.btn-ghost {
  border: 1px solid var(--navy-line);
  color: var(--ice);
  background: rgba(13, 32, 53, .35);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-ghost:hover { border-color: var(--cyan); }

.btn-sm { padding: 10px 22px; font-size: .85rem; }
.btn-lg { padding: 18px 44px; font-size: 1.05rem; }

/* ---------- Capítulos ---------- */
main { position: relative; z-index: 2; }

.chapter {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 28px 90px;
}

.ch-content {
  width: 100%;
  max-width: 680px;
  margin: 0 auto 0 max(28px, calc((100vw - 1240px) / 2 + 28px));
}

.ch-wide { max-width: 1020px; }

.ch-center .ch-content { margin: 0 auto; text-align: center; }

.ch-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: .8rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 22px;
}

.ch-center .ch-eyebrow { justify-content: center; }

.ch-clock {
  padding: 4px 12px;
  border: 1px solid var(--navy-line);
  border-radius: 6px;
  background: rgba(13, 32, 53, .5);
  font-variant-numeric: tabular-nums;
  letter-spacing: .12em;
  color: var(--ice);
}

.ch-title, .ch-giant, .hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -.015em;
}

.ch-title { font-size: clamp(2.1rem, 4.8vw, 3.6rem); margin-bottom: 22px; }
.ch-giant { font-size: clamp(2.5rem, 7vw, 5.4rem); margin-bottom: 26px; }

.accent { color: var(--cyan); }

.ch-text {
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  color: var(--text-dim);
  max-width: 56ch;
  margin-bottom: 26px;
}

.ch-center .ch-text { margin-inline: auto; }

.ch-link {
  font-family: var(--font-display);
  font-size: .95rem;
  color: var(--cyan);
  display: inline-block;
  padding-bottom: 2px;
  background: linear-gradient(currentColor, currentColor) no-repeat 0 100% / 0 1px;
  transition: background-size .4s var(--ease-out), transform .3s var(--ease-out);
}

.ch-link:hover {
  background-size: 100% 1px;
  transform: translateX(4px);
}

/* ---------- Hero ---------- */
.hero { padding-top: 90px; }

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: .8rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 24px;
}

.hero-title { font-size: clamp(2.7rem, 7vw, 5.4rem); margin-bottom: 26px; }

.hero-sub {
  font-size: clamp(1.02rem, 1.5vw, 1.18rem);
  color: var(--text-dim);
  max-width: 52ch;
  margin-bottom: 36px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

.hero-scroll {
  position: absolute;
  bottom: 34px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: .74rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.hero-scroll-line {
  width: 1px;
  height: 44px;
  background: linear-gradient(180deg, var(--cyan), transparent);
  animation: scrollPulse 2.2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { transform: scaleY(.35); transform-origin: top; opacity: .4; }
  50% { transform: scaleY(1); opacity: 1; }
}

/* ---------- Reveals (máscara + fade) ---------- */
.ln { display: block; overflow: hidden; }

.rv-ln {
  display: inline-block;
  transform: translateY(115%);
  transition: transform .95s var(--ease-out) var(--d, 0s);
  will-change: transform;
}

.rv {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .85s ease var(--d, 0s), transform .85s var(--ease-out) var(--d, 0s);
  will-change: opacity, transform;
}

.chapter.in .rv-ln { transform: translateY(0); }
.chapter.in .rv { opacity: 1; transform: translateY(0); }

/* ---------- Cards de diferenciais ---------- */
.diffs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 14px;
}

.diff-card {
  padding: 26px 26px 24px;
  border: 1px solid var(--navy-line);
  border-radius: 16px;
  background: rgba(13, 32, 53, .55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform .35s var(--ease-out), border-color .35s ease;
}

.diff-card:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 197, 232, .45);
}

.diff-card h3 {
  font-family: var(--font-display);
  font-size: 1.06rem;
  margin-bottom: 8px;
}

.diff-card p { font-size: .92rem; color: var(--text-dim); }

/* ---------- Stats ---------- */
.stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 52px;
  margin: 30px 0;
}

.stat-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 3.4vw, 2.7rem);
  color: var(--cyan);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.stat-label { font-size: .85rem; color: var(--text-dim); }

/* ---------- Capítulo final ---------- */
.ch-final { justify-content: flex-end; gap: 48px; padding-bottom: 0; }

.ch-final .ch-content {
  margin: auto;
  text-align: center;
  max-width: 760px;
}

.ch-final .btn-lg { margin-top: 6px; }

/* ---------- Mapa de rota do litoral ---------- */
.route-map {
  margin: 44px auto 0;
  max-width: 560px;
  width: 100%;
}

.route-map svg { width: 100%; height: auto; display: block; overflow: visible; }

.route-track {
  fill: none;
  stroke: rgba(143, 168, 188, .22);
  stroke-width: 1.5;
  stroke-linecap: round;
}

.route-line {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  opacity: 0;
  filter: drop-shadow(0 0 6px rgba(0, 197, 232, .6));
}

.route-comet {
  fill: var(--cyan-mist);
  opacity: 0;
  offset-path: path("M110,70 C190,70 250,100 320,100 S450,64 530,64");
  offset-distance: 0%;
  filter: drop-shadow(0 0 8px rgba(0, 197, 232, .9));
}

.core { fill: var(--cyan); opacity: .2; filter: drop-shadow(0 0 7px rgba(0, 197, 232, .85)); }

.ping { fill: none; stroke: var(--cyan); stroke-width: 1.6; opacity: 0; }

.route-label {
  fill: var(--text-dim);
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: .04em;
  text-anchor: middle;
}

/* Liga o motion apenas quando a seção entra na tela; roda em loop */
.chapter.in .route-line  { animation: routeDraw 6s linear infinite; }
.chapter.in .route-comet { animation: cometRun 6s linear infinite; }
.chapter.in .core-b { animation: coreB 6s linear infinite; }
.chapter.in .core-p { animation: coreP 6s linear infinite; }
.chapter.in .core-i { animation: coreI 6s linear infinite; }
.chapter.in .ping-b { animation: pingB 6s linear infinite; }
.chapter.in .ping-p { animation: pingP 6s linear infinite; }
.chapter.in .ping-i { animation: pingI 6s linear infinite; }

@keyframes routeDraw {
  0%   { stroke-dashoffset: 100; opacity: 0; }
  3%   { opacity: 1; }
  66%  { stroke-dashoffset: 0; opacity: 1; }
  90%  { stroke-dashoffset: 0; opacity: 1; }
  100% { stroke-dashoffset: 0; opacity: 0; }
}

@keyframes cometRun {
  0%   { offset-distance: 0%;   opacity: 0; }
  4%   { opacity: 1; }
  66%  { offset-distance: 100%; opacity: 1; }
  71%  { offset-distance: 100%; opacity: 0; }
  100% { offset-distance: 100%; opacity: 0; }
}

@keyframes coreB { 0% { opacity: .2; } 3% { opacity: 1; } 90% { opacity: 1; } 100% { opacity: .2; } }
@keyframes coreP { 0%, 32% { opacity: .2; } 37% { opacity: 1; } 90% { opacity: 1; } 100% { opacity: .2; } }
@keyframes coreI { 0%, 64% { opacity: .2; } 69% { opacity: 1; } 90% { opacity: 1; } 100% { opacity: .2; } }

@keyframes pingB {
  0%  { r: 5px; opacity: .55; }
  12% { r: 22px; opacity: 0; }
  100% { r: 22px; opacity: 0; }
}
@keyframes pingP {
  0%, 33% { r: 5px; opacity: 0; }
  35% { r: 5px; opacity: .55; }
  47% { r: 22px; opacity: 0; }
  100% { r: 22px; opacity: 0; }
}
@keyframes pingI {
  0%, 65% { r: 5px; opacity: 0; }
  67% { r: 5px; opacity: .55; }
  79% { r: 22px; opacity: 0; }
  100% { r: 22px; opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .route-line { stroke-dashoffset: 0; opacity: 1; animation: none; }
  .route-comet { animation: none; opacity: 0; }
  .core { opacity: 1; animation: none; }
  .ping { animation: none; opacity: 0; }
}

/* ---------- Footer ---------- */
.footer {
  width: 100%;
  border-top: 1px solid var(--navy-line);
  background: rgba(11, 22, 35, .65);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 30px 28px 26px;
}

.footer-grid {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.footer-contact { display: flex; gap: 28px; font-size: .9rem; color: var(--text-dim); }
.footer-contact a:hover { color: var(--cyan); }

.footer-bottom {
  max-width: 1240px;
  margin: 18px auto 0;
  font-size: .76rem;
  color: var(--text-dim);
  opacity: .7;
}

/* ---------- WhatsApp flutuante ---------- */
.wa-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 60;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .4);
  transition: transform .3s var(--ease-out);
}

.wa-float svg { width: 28px; height: 28px; }
.wa-float:hover { transform: scale(1.08); }

/* ---------- Responsivo ---------- */
@media (max-width: 880px) {
  .journey { display: none; }

  .hud {
    top: auto;
    bottom: 24px;
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    font-size: .74rem;
    padding: 7px 14px;
    white-space: nowrap;
  }

  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    gap: 30px;
    background: rgba(11, 22, 35, .96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .35s ease;
  }

  .nav-links.open { opacity: 1; pointer-events: auto; }
  .nav-links > a:not(.btn) { font-size: 1.3rem; }

  .ch-content { margin: 0 auto; }
  .chapter { padding: 110px 22px 110px; }
  .diffs-grid { grid-template-columns: 1fr; }
  .stats-row { gap: 18px 34px; }
  .hero-scroll { display: none; }
  .route-map { margin-top: 32px; }
  .route-label { font-size: 21px; }
}

/* ---------- Acessibilidade: menos movimento ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .rv, .rv-ln {
    transition: none;
    transform: none;
    opacity: 1;
  }

  .scene-video { display: none; }
  .hero-scroll-line { animation: none; }
  .scene { transform: none !important; }
}