/* =========================================================
   PlantonIA - landing page estática (v3)
   Direção: identidade ancorada no WhatsApp (teal + verde + wallpaper bege)
   Fraunces (display, serifada com personalidade) + Manrope (corpo)
   Este arquivo cobre: tokens, reset, header, botões, hero, footer,
   responsivo e acessibilidade de movimento.
   Mockup do telefone -> phone.css | Demais seções -> sections.css
   ========================================================= */

:root {
  /* --- paleta ancorada no WhatsApp --- */
  --wa-teal-950:  #051F1B;
  --wa-teal-900:  #075E54;
  --wa-teal-700:  #128C7E;
  --wa-green:     #25D366;
  --wa-green-600: #1DA851;
  --wa-sent:      #D9FDD3;
  --wa-received:  #FFFFFF;
  --wa-wallpaper: #ECE5DD;
  --wa-dark:      #0B141A;
  --wa-dark-raised: #111B21;
  --wa-check:     #34B7F1;

  --ink:          #0B1A17;
  --ink-soft:     #45564F;

  --paper:        #FFFFFF;
  --bg-light:     #F6F4EF;
  --bg-light-deep:#EDE9E0;
  --line:         rgba(11, 26, 23, 0.14);

  --on-dark:      #F2F6F4;
  --on-dark-soft: rgba(242, 246, 244, 0.72);

  /* --- tipografia --- */
  --font-display: "Fraunces", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --font-body:    "Manrope", "Segoe UI", system-ui, sans-serif;

  --text-xs:    0.8rem;
  --text-sm:    0.95rem;
  --text-base:  clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg:    clamp(1.15rem, 1.05rem + 0.4vw, 1.4rem);
  --text-h2:    clamp(1.9rem, 1.5rem + 1.8vw, 3rem);
  --text-hero:  clamp(2.3rem, 1.4rem + 3.8vw, 4.4rem);

  --space-xs:   0.5rem;
  --space-sm:   1rem;
  --space-md:   1.75rem;
  --space-lg:   clamp(2.5rem, 2rem + 2vw, 4.5rem);
  --space-xl:   clamp(4rem, 3rem + 4vw, 7.5rem);

  --radius-sm:  10px;
  --radius-md:  18px;
  --radius-lg:  28px;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 180ms;
  --dur-normal: 340ms;

  /* altura real do header (medida via agent-browser: ~79px); usada pra
     encaixar o hero inteiro (telefone incluso) na primeira dobra. */
  --header-h: 84px;

  color-scheme: light;
}

/* --- reset enxuto --- */
* , *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
/* com motion.js + Lenis ativos, o Lenis assume 100% do smoothing do scroll
   (inclusive dos links "#ancora" via lenis.scrollTo); o smooth nativo do CSS
   ficaria brigando com o rAF dele, por isso desliga so nesse caso. */
html.js-motion { scroll-behavior: auto; }
body {
  margin: 0;
  background: var(--bg-light);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
h1, h2, h3 { font-family: var(--font-display); margin: 0; color: var(--ink); text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
a { color: inherit; text-decoration: none; }
ol, ul { margin: 0; padding: 0; list-style: none; }
:focus-visible {
  outline: 3px solid var(--wa-teal-900);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  width: min(1180px, 100% - 3rem);
  margin-inline: auto;
}
.wrap-narrow { width: min(760px, 100% - 3rem); }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--wa-teal-900);
  color: var(--on-dark);
  padding: 0.75rem 1.25rem;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* =========================================================
   Header
   ========================================================= */
.site-header {
  /* base = sem JS e prefers-reduced-motion: vidro creme fixo, sempre visivel,
     texto escuro (ja acessivel, ja legivel). O header "camaleao" (transparente
     sobre o hero, some ao rolar pra baixo) e so enhancement JS abaixo. */
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in oklab, var(--bg-light) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-block: 1rem;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.header-login {
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--wa-green);
  text-underline-offset: 5px;
  transition: color var(--dur-fast) var(--ease-out-expo);
}
.header-login:hover { color: var(--wa-teal-700); }

/* =========================================================
   Header camaleao (so com motion.js ativo)
   ========================================================= */
/* estado 1 (topo/sobre o hero) e definido so por media query, sem depender
   da classe .js-motion: motion.js e importado no fim do body e so anexa essa
   classe depois de 3 fetches sequenciais de vendor (gsap/ScrollTrigger/lenis),
   entao esperar por .js-motion pra pintar transparente/texto claro deixava um
   flash real do vidro escuro-sobre-claro (fallback de reduced-motion) por
   cima do hero teal antes do JS terminar. A media query pinta a cor certa no
   primeiro paint sempre que motion e permitido; so a posicao (fixed) e as
   transicoes continuam esperando .js-motion, que e inofensivo (usuario ainda
   nao rolou nesse intervalo curtissimo). */
@media (prefers-reduced-motion: no-preference) {
  .site-header {
    background: transparent;
    backdrop-filter: none;
    border-bottom-color: transparent;
  }
  .site-header .brand-word,
  .site-header .main-nav a { color: var(--on-dark); }
  .site-header .header-login { color: var(--on-dark); }
  .site-header .brand-word em { color: var(--wa-green); }
  .site-header .brand-mark { background: var(--wa-green); color: var(--wa-teal-950); }
  .site-header .btn-ghost { border-color: var(--on-dark); color: var(--on-dark); }
  .site-header .btn-ghost:hover { background: var(--on-dark); color: var(--wa-teal-900); border-color: var(--on-dark); }
}
.js-motion .site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 50;
  transition: transform var(--dur-normal) var(--ease-out-expo),
              background var(--dur-normal) ease,
              border-color var(--dur-normal) ease,
              backdrop-filter var(--dur-normal) ease;
}
.js-motion .header-inner { transition: padding-block var(--dur-normal) ease; }

.js-motion .site-header.is-scrolled {
  background: color-mix(in oklab, var(--bg-light) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--line);
}
.js-motion .site-header.is-scrolled .header-inner { padding-block: 0.75rem; }
.js-motion .site-header.is-scrolled .brand-word,
.js-motion .site-header.is-scrolled .main-nav a { color: var(--ink-soft); }
.js-motion .site-header.is-scrolled .header-login { color: var(--ink); }
.js-motion .site-header.is-scrolled .brand-word { color: var(--ink); }
.js-motion .site-header.is-scrolled .brand-word em { color: var(--wa-teal-700); }
.js-motion .site-header.is-scrolled .brand-mark { background: var(--wa-teal-900); color: var(--wa-green); }
.js-motion .site-header.is-scrolled .btn-ghost { border-color: var(--ink); color: var(--ink); }
.js-motion .site-header.is-scrolled .main-nav a:hover,
.js-motion .site-header.is-scrolled .main-nav a:focus-visible,
.js-motion .site-header.is-scrolled .header-login:hover,
.js-motion .site-header.is-scrolled .header-login:focus-visible { color: var(--wa-teal-900); }
.js-motion .site-header.is-scrolled .btn-ghost:hover { background: var(--wa-teal-900); color: var(--on-dark); border-color: var(--wa-teal-900); }

/* auto-hide ao rolar pra baixo, volta na hora rolando pra cima (motion.js).
   :focus-within cobre teclado sem precisar de JS: tab dentro do header
   sempre forca ele visivel, nunca fica escondido com foco dentro. */
.js-motion .site-header.is-hidden { transform: translateY(-100%); }
.js-motion .site-header:focus-within { transform: translateY(0) !important; }

/* header fixo tira o header do fluxo do documento: o hero (que ja reserva
   --header-h no calculo de altura pro sticky) precisa devolver essa altura
   como padding-top pra badge nao ficar colada embaixo do header flutuante. */
.js-motion .hero {
  min-height: 100vh;
  min-height: 100svh;
  padding-top: calc(var(--header-h) + clamp(1.25rem, 3vh, 2.5rem));
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--ink);
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  background: var(--wa-teal-900);
  color: var(--wa-green);
  font-weight: 700;
  font-size: 1.05rem;
}
.brand-word em {
  font-style: italic;
  font-weight: 700;
  color: var(--wa-teal-700);
}
.main-nav {
  display: flex;
  gap: clamp(1rem, 2vw, 2rem);
  font-size: 0.95rem;
  font-weight: 500;
}
.main-nav a {
  position: relative;
  padding-block: 0.2rem;
  color: var(--ink-soft);
  transition: color var(--dur-fast) var(--ease-out-expo);
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 2px;
  background: var(--wa-green);
  transition: right var(--dur-fast) var(--ease-out-expo);
}
.main-nav a:hover { color: var(--ink); }
.main-nav a:hover::after { right: 0; }
@media (prefers-reduced-motion: no-preference) {
  .site-header:not(.is-scrolled) .main-nav a:hover,
  .site-header:not(.is-scrolled) .main-nav a:focus-visible,
  .site-header:not(.is-scrolled) .header-login:hover,
  .site-header:not(.is-scrolled) .header-login:focus-visible {
    color: var(--wa-green);
  }
  .site-header:not(.is-scrolled) .main-nav a:focus-visible,
  .site-header:not(.is-scrolled) .header-login:focus-visible,
  .site-header:not(.is-scrolled) .btn-ghost:focus-visible {
    outline-color: var(--wa-green);
  }
  .site-header:not(.is-scrolled) .btn-ghost:hover {
    background: var(--wa-green);
    border-color: var(--wa-green);
    color: var(--wa-teal-950);
  }
}

/* =========================================================
   Botões
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  text-align: center;
  /* sem white-space:nowrap: em telas muito estreitas o rotulo do botao
     precisa poder quebrar em duas linhas, senao forca overflow horizontal */
  transition: transform var(--dur-fast) var(--ease-out-expo),
              box-shadow var(--dur-fast) var(--ease-out-expo),
              background var(--dur-fast) ease;
}
.btn-primary {
  background: var(--wa-green);
  color: var(--wa-teal-950);
  box-shadow: 0 1px 0 rgba(255,255,255,0.25) inset, 0 10px 24px -12px rgba(7, 94, 84, 0.55);
  /* --mx/--my: alvo do "botao magnetico" (motion.js). Ficam em 0px sem JS,
     entao o efeito e puramente aditivo sobre o hover/active de sempre. */
  --mx: 0px;
  --my: 0px;
  transform: translate3d(var(--mx), var(--my), 0);
}
.btn-primary:hover {
  transform: translate3d(var(--mx), calc(var(--my) - 2px), 0);
  background: var(--wa-green-600);
  color: var(--on-dark);
  box-shadow: 0 1px 0 rgba(255,255,255,0.15) inset, 0 14px 28px -12px rgba(7, 94, 84, 0.6);
}
.btn-primary:active { transform: translate3d(var(--mx), var(--my), 0); }
.btn-ghost {
  background: transparent;
  border: 1.5px solid var(--ink);
  color: var(--ink);
  padding: 0.65rem 1.3rem;
}
.btn-ghost:hover { background: var(--wa-teal-900); border-color: var(--wa-teal-900); color: var(--on-dark); }
.btn-text {
  color: var(--ink);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--wa-green);
  text-underline-offset: 5px;
  padding: 0.85rem 0.25rem;
}
.btn-lg { padding: 1.1rem 2rem; font-size: 1.05rem; }
/* sem flex-shrink:0 aqui: em telas muito estreitas o botao precisa poder
   encolher e quebrar linha, senao forca overflow horizontal no header */

/* =========================================================
   Hero
   ========================================================= */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  /* dobra inteira: cabe telefone + copy sem scroll (feedback Mac 1280x800 /
     1440x900 / 1728x1080). vh primeiro (fallback), svh depois (progressive
     enhancement, desconta barra de endereço mobile). */
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100svh - var(--header-h));
  padding-block: clamp(1.25rem, 3vh, 2.5rem);
  background: var(--wa-teal-950);
  overflow: clip;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(46% 60% at 78% 18%, color-mix(in oklab, var(--wa-green) 22%, transparent), transparent 70%),
    radial-gradient(55% 50% at 8% 92%, color-mix(in oklab, var(--wa-teal-700) 45%, transparent), transparent 72%),
    linear-gradient(175deg, var(--wa-teal-900) 0%, var(--wa-teal-950) 62%, var(--wa-dark) 100%);
}
.hero-bg::after {
  /* textura sutil de ruido, pra fundo escuro nao ficar flat */
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.04 0'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)'/%3E%3C/svg%3E");
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: var(--on-dark);
  background: rgba(242, 246, 244, 0.08);
  border: 1px solid rgba(242, 246, 244, 0.18);
  padding: 0.5rem 0.9rem 0.5rem 0.7rem;
  border-radius: 999px;
  margin-bottom: clamp(0.9rem, 1.8vh, 1.4rem);
}
.eyebrow em { font-style: italic; color: var(--wa-green); }
.pulse-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--wa-green);
  box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.55);
  animation: pulse 2.4s ease-out infinite;
  flex-shrink: 0;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5); }
  70%  { box-shadow: 0 0 0 9px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

h1 {
  font-size: var(--text-hero);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.01em;
  max-width: 15ch;
  color: var(--on-dark);
}
h1 .hl {
  font-style: italic;
  color: var(--wa-green);
}

.hero-sub {
  margin-top: clamp(0.85rem, 1.6vh, 1.4rem);
  max-width: 42ch;
  font-size: var(--text-lg);
  color: var(--on-dark-soft);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
  margin-top: clamp(0.85rem, 1.6vh, 1.4rem);
}
.hero-actions .btn-text { color: var(--on-dark); text-decoration-color: var(--wa-green); }
.hero-footnote {
  margin-top: clamp(0.85rem, 1.6vh, 1.4rem);
  max-width: 38ch;
  font-size: var(--text-sm);
  color: var(--on-dark-soft);
  border-left: 2px solid var(--wa-green);
  padding-left: 0.9rem;
}

/* --- reveal de entrada (respeita prefers-reduced-motion mais abaixo) --- */
.reveal {
  animation: reveal-up var(--dur-normal) var(--ease-out-expo) both;
  animation-delay: calc(var(--d, 0) * 110ms);
}
@keyframes reveal-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
/* motion.js separa o H1 em palavras (data-split="true") e assume o reveal
   dele com stagger por palavra; sem JS, o bloco inteiro some/aparece via
   .reveal acima como sempre funcionou. */
.reveal[data-split="true"] { animation: none; opacity: 1; }
.word { display: inline-block; overflow: hidden; vertical-align: top; }
.word-inner { display: inline-block; will-change: transform; }

/* =========================================================
   Reveal por seção com clip-path (motion.js liga via [data-reveal]).
   Estado de repouso = 100% visivel: sem JS a pagina fica integra, o
   clip so existe enquanto o proprio JS o define via gsap.set no init.
   ========================================================= */
[data-reveal] { clip-path: none; opacity: 1; }

/* =========================================================
   Footer
   ========================================================= */
.site-footer { padding-block: var(--space-lg); border-top: 1px solid var(--line); background: var(--bg-light-deep); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 0.8fr 1.4fr;
  gap: var(--space-lg);
}
.footer-brand p { margin-top: 0.9rem; color: var(--ink-soft); max-width: 32ch; font-size: 0.92rem; }
.footer-col-title {
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--wa-teal-900);
  margin-bottom: 0.7rem;
}
.footer-col a { display: inline-block; text-decoration: underline; text-decoration-color: var(--wa-green); font-weight: 600; }
.footer-social-links {
  display: grid;
  justify-items: start;
  gap: 0.45rem;
}
.footer-credit { margin-top: 0.6rem; color: var(--ink-soft); font-size: 0.88rem; }
.footer-note { color: var(--ink-soft); font-size: 0.85rem; margin-top: 0.5rem; max-width: 40ch; }
.footer-note:first-of-type { margin-top: 0; }

/* =========================================================
   Responsivo
   ========================================================= */
@media (max-width: 900px) {
  .main-nav { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: span 2; }
}
@media (max-width: 560px) {
  .header-inner { gap: 0.75rem; }
  .header-cta { display: none; }
  .header-login {
    padding: 0.6rem 0.8rem;
    border: 1px solid currentColor;
    border-radius: 999px;
    font-size: 0.82rem;
    text-decoration: none;
    white-space: nowrap;
  }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { text-align: center; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
}

/* =========================================================
   Acessibilidade de movimento
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    /* bug real: sem isso, elementos com animation-delay longo (as bolhas
       do mockup, ate ~3.7s de atraso na ultima) ficam presos no estado
       "from" (opacity:0, segurado por fill-mode:both) pelo delay inteiro,
       mesmo com a animacao em si quase instantanea - reduced-motion tem
       que ser INSTANTANEO, nao so "rapido depois de esperar". */
    animation-delay: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    transition-delay: 0s !important;
    scroll-behavior: auto !important;
  }
  /* !important + animation:none: mesmo motivo do phone.css - uma CSS
     Animation ativa (mesmo com duration/delay zerados acima) fica numa
     camada da cascata acima de uma regra de autor comum, entao uma
     opacity:1 sem !important perdia pro opacity:0 do keyframe "from"
     durante o delay original (bug real, medido). */
  .reveal, [data-reveal] { opacity: 1 !important; transform: none !important; clip-path: none !important; animation: none !important; }
}