/* =============================================================================
OmniAI : FOLHA DE ESTILO
   -----------------------------------------------------------------------------
   PALETA: edite as variáveis abaixo (:root) para trocar as cores do site
   inteiro. Tudo o resto deriva delas.
   ============================================================================= */

:root {
  /* ---- PALETA OMNIAI (edite aqui) ---- */
  --c-navy:   #1B3A4B;   /* navy-teal — fundos escuros, títulos */
  --c-teal:   #2E8B8B;   /* teal — destaques, links            */
  --c-orange: #C45A11;   /* laranja — botões de ação (CTA)      */
  --c-mint:   #D1E7DD;   /* mint — fundos suaves, detalhes      */
  --c-cream:  #F5F1E8;   /* cream — fundo padrão do site        */

  /* ---- Tons derivados ---- */
  --c-navy-deep: #122833;
  --c-navy-soft: #244c61;
  --c-orange-hover: #a8490c;
  --c-teal-soft: #3da3a3;
  --c-ink: #15303d;
  --c-muted: #5a6b73;
  --c-line: rgba(27, 58, 75, 0.12);
  --c-line-light: rgba(245, 241, 232, 0.16);
  --c-white: #ffffff;

  /* ---- Tokens semânticos (NÃO precisa editar; os temas cuidam disso) ----
     Separam o papel "superfície escura" do papel "texto/título escuro",
     o que permite o tema de IA inverter para fundo escuro + texto claro. */
  --heading: var(--c-navy);   /* cor de títulos sobre fundo claro      */
  --on-dark: #F5F1E8;         /* cor de texto sobre seções escuras     */
  --hero-glow: 0.85;          /* intensidade do brilho do hero (0–1.2) */
  --header-bg: rgba(245, 241, 232, 0.85); /* fundo do cabeçalho        */

  /* ---- Tipografia ---- */
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Hanken Grotesk", system-ui, sans-serif;
  --font-mono: var(--font-body);  /* fonte de rótulos (temas trocam)   */

  /* ---- Layout ---- */
  --maxw: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius: 14px;
  --radius-lg: 22px;

  /* ---- Sombras ---- */
  --shadow-sm: 0 2px 8px rgba(18, 40, 51, 0.06);
  --shadow-md: 0 14px 40px rgba(18, 40, 51, 0.10);
  --shadow-lg: 0 30px 70px rgba(18, 40, 51, 0.18);
}

/* ============================ RESET / BASE ================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  background: var(--c-cream);
  color: var(--c-ink);
  line-height: 1.65;
  font-size: 1.05rem;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* sutil textura de grão para profundidade */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============================ TIPOGRAFIA ================================== */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--heading);
  font-optical-sizing: auto;
}

.eyebrow {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-orange);
  display: inline-block;
  margin-bottom: 1rem;
}

.lead { font-size: clamp(1.1rem, 1.6vw, 1.35rem); color: var(--c-muted); }

/* ============================ LAYOUT ====================================== */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding-inline: var(--gutter); }

section { padding-block: clamp(4rem, 9vw, 7.5rem); }

.section-cream { background: var(--c-cream); }
.section-white { background: var(--c-white); }
.section-mint  { background: var(--c-mint); }
.section-navy  {
  background: var(--c-navy);
  color: var(--on-dark);
  position: relative;
}
.section-navy h1, .section-navy h2, .section-navy h3, .section-navy h4 { color: var(--on-dark); }
.section-navy .lead { color: rgba(245, 241, 232, 0.78); }

.section-head { max-width: 720px; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head.center { margin-inline: auto; text-align: center; }

/* ============================ BOTÕES ====================================== */
.btn {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: var(--font-body); font-weight: 700; font-size: 1rem;
  padding: 0.95rem 1.7rem; border-radius: 100px; border: 2px solid transparent;
  cursor: pointer; transition: transform .25s ease, background .25s ease, box-shadow .25s ease;
  line-height: 1; white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn .arrow { transition: transform .25s ease; }
.btn:hover .arrow { transform: translateX(4px); }

.btn-primary { background: var(--c-orange); color: #fff; box-shadow: 0 8px 22px rgba(196, 90, 17, 0.28); }
.btn-primary:hover { background: var(--c-orange-hover); box-shadow: 0 12px 30px rgba(196, 90, 17, 0.36); }

.btn-outline { background: transparent; border-color: currentColor; color: var(--heading); }
.section-navy .btn-outline { color: var(--on-dark); }
.btn-outline:hover { background: var(--c-navy); color: var(--on-dark); }
.section-navy .btn-outline:hover { background: var(--on-dark); color: var(--c-navy); }

.btn-ghost { background: transparent; color: var(--c-teal); padding-inline: 0; font-weight: 700; }
.btn-ghost:hover { color: var(--c-orange); }

/* ============================ HEADER ====================================== */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.logo { font-family: var(--font-display); font-weight: 600; font-size: 1.5rem; color: var(--heading); letter-spacing: -0.02em; }
.logo span { color: var(--c-teal); }
.logo img { height: 34px; width: auto; }

.nav { display: flex; align-items: center; gap: 2rem; }
.nav-links { display: flex; gap: 1.6rem; list-style: none; }
.nav-links a {
  font-weight: 600; font-size: 0.96rem; color: var(--c-ink);
  position: relative; padding-block: 0.3rem; transition: color .2s ease;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0;
  background: var(--c-orange); transition: width .25s ease;
}
.nav-links a:hover { color: var(--c-orange); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--heading); }

.nav-cta { padding: 0.7rem 1.3rem; font-size: 0.92rem; }

.menu-toggle {
  display: none; background: none; border: 0; cursor: pointer; padding: 0.5rem;
  flex-direction: column; gap: 5px;
}
.menu-toggle span { width: 26px; height: 2px; background: var(--heading); transition: .3s; border-radius: 2px; }
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================ HERO ======================================== */
.hero {
  position: relative; overflow: hidden;
  background: var(--c-navy);
  color: var(--on-dark);
  padding-block: clamp(4.5rem, 11vw, 8.5rem);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  opacity: var(--hero-glow);
  background:
    radial-gradient(60% 90% at 85% 10%, rgba(46, 139, 139, 0.30), transparent 60%),
    radial-gradient(50% 70% at 10% 100%, rgba(196, 90, 17, 0.18), transparent 60%);
}
.hero .container { position: relative; z-index: 2; max-width: 880px; }
.hero h1 {
  color: var(--on-dark);
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  font-weight: 600;
}
.hero h1 em { font-style: italic; color: var(--c-teal-soft); }
.hero .lead { color: rgba(245, 241, 232, 0.82); max-width: 640px; margin-top: 1.5rem; font-size: clamp(1.1rem, 1.8vw, 1.4rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.4rem; align-items: center; }
.hero-trust { margin-top: 1.8rem; font-size: 0.92rem; color: rgba(245, 241, 232, 0.6); font-style: italic; }

/* hero menor para páginas internas */
.page-hero { padding-block: clamp(3.5rem, 8vw, 6rem); }
.page-hero h1 { font-size: clamp(2.1rem, 5vw, 3.6rem); }

/* ============================ GRIDS / CARDS =============================== */
.grid { display: grid; gap: 1.6rem; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  position: relative;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: transparent; }
.card h3 { font-size: 1.45rem; margin-bottom: 0.7rem; }
.card p { color: var(--c-muted); }
.card .card-tag {
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--c-teal); margin-bottom: 1rem; display: block; font-family: var(--font-mono);
}
.card .card-link { margin-top: 1.3rem; display: inline-block; }

/* card numerado (princípios) */
.card-num { display: flex; gap: 1.3rem; }
.card-num .num {
  font-family: var(--font-display); font-size: 2rem; font-weight: 600;
  color: var(--c-orange); line-height: 1; flex-shrink: 0;
  width: 54px; height: 54px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--c-mint); color: var(--heading);
}
.card-num .term { font-size: 0.85rem; color: var(--c-teal); font-style: italic; font-family: var(--font-display); }

/* ============================ PROSE / CONTEÚDO ============================ */
.measure { max-width: 760px; }
.prose p { margin-bottom: 1.2rem; color: var(--c-muted); font-size: 1.12rem; }
.prose p:last-child { margin-bottom: 0; }
.section-navy .prose p { color: rgba(245, 241, 232, 0.82); }

/* lista com marcador de destaque */
.feature-list { list-style: none; display: grid; gap: 1.1rem; }
.feature-list li { padding-left: 2rem; position: relative; }
.feature-list li::before {
  content: ""; position: absolute; left: 0; top: 0.55em;
  width: 10px; height: 10px; border-radius: 3px; background: var(--c-orange);
  transform: rotate(45deg);
}
.feature-list strong { color: var(--heading); }
.section-navy .feature-list strong { color: var(--on-dark); }

/* bloco de duas colunas texto+lista */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }

/* faixa de destaque (callout) */
.callout {
  background: var(--c-navy); color: var(--on-dark);
  border-radius: var(--radius-lg); padding: clamp(2.2rem, 5vw, 3.5rem);
  position: relative; overflow: hidden;
}
.callout::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(70% 100% at 90% 0%, rgba(46,139,139,0.25), transparent 60%);
}
.callout > * { position: relative; z-index: 1; }

/* tabela comparativa */
.compare { width: 100%; border-collapse: collapse; margin-top: 1.5rem; }
.compare th, .compare td { text-align: left; padding: 1rem 1.2rem; border-bottom: 1px solid var(--c-line); }
.compare th { font-family: var(--font-display); font-size: 1.05rem; color: var(--heading); }
.compare td { color: var(--c-muted); }
.compare tr td:first-child { font-weight: 700; color: var(--heading); }

/* diagrama DARAG / SACL */
.duo {
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  gap: 1.5rem; margin-top: 2rem;
}
.duo .pole {
  background: var(--c-white); border: 1px solid var(--c-line);
  border-radius: var(--radius); padding: 1.6rem; text-align: center;
}
.duo .pole h4 { color: var(--c-teal); font-size: 1.2rem; margin-bottom: 0.4rem; }
.duo .pole small { color: var(--c-muted); }
.duo .arrows { font-size: 1.6rem; color: var(--c-orange); text-align: center; }

/* problema (bloco de impacto) */
.statement h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); max-width: 16ch; }

/* ============================ CONTATO / FORM ============================== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.field { margin-bottom: 1.2rem; }
.field label { display: block; font-weight: 700; font-size: 0.9rem; margin-bottom: 0.4rem; color: var(--heading); }
.field input, .field textarea, .field select {
  width: 100%; padding: 0.85rem 1rem; border: 1px solid var(--c-line);
  border-radius: 10px; font-family: var(--font-body); font-size: 1rem;
  background: var(--c-white); color: var(--c-ink); transition: border-color .2s ease;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--c-teal); box-shadow: 0 0 0 3px rgba(46,139,139,0.12);
}
.field textarea { resize: vertical; min-height: 130px; }
.contact-info { display: grid; gap: 1.4rem; }
.contact-info .item .k { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--c-teal); font-weight: 700; }
.contact-info .item .v { font-size: 1.15rem; color: var(--heading); }

/* ============================ BLOG ======================================== */
.post-card { display: flex; flex-direction: column; height: 100%; }
.post-card .post-meta { font-size: 0.82rem; color: var(--c-teal); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; font-family: var(--font-mono); }
.post-card h3 { margin: 0.6rem 0 0.7rem; }
.coming-soon { text-align: center; padding: 3rem 1rem; color: var(--c-muted); }

/* ============================ FOOTER ====================================== */
.site-footer { background: var(--c-navy-deep); color: rgba(245, 241, 232, 0.72); padding-block: clamp(3rem, 6vw, 4.5rem) 2rem; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2.5rem; }
.site-footer .logo { color: var(--on-dark); }
.footer-about { font-size: 0.95rem; max-width: 32ch; margin-top: 1rem; }
.footer-col h4 { color: var(--on-dark); font-size: 1rem; margin-bottom: 1rem; font-family: var(--font-body); font-weight: 700; }
.footer-col ul { list-style: none; display: grid; gap: 0.6rem; }
.footer-col a { font-size: 0.95rem; transition: color .2s ease; }
.footer-col a:hover { color: var(--c-orange); }
.footer-social { display: flex; gap: 1rem; margin-top: 1.4rem; }
.footer-social a { font-size: 0.9rem; font-weight: 700; color: var(--c-teal-soft); }
.footer-social a:hover { color: var(--c-orange); }
.footer-bottom {
  margin-top: 2.8rem; padding-top: 1.6rem; border-top: 1px solid var(--c-line-light);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  font-size: 0.85rem; color: rgba(245, 241, 232, 0.5);
}

/* ============================ ANIMAÇÕES =================================== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal:nth-child(2) { transition-delay: .08s; }
.reveal:nth-child(3) { transition-delay: .16s; }
.reveal:nth-child(4) { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ============================ RESPONSIVO ================================== */
@media (max-width: 920px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .menu-toggle { display: flex; }
  .nav-links {
    position: fixed; inset: 76px 0 auto 0;
    flex-direction: column; gap: 0; background: var(--c-cream);
    border-bottom: 1px solid var(--c-line);
    padding: 1rem var(--gutter) 1.5rem;
    transform: translateY(-120%); transition: transform .35s ease;
    box-shadow: var(--shadow-md);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 0.9rem 0; border-bottom: 1px solid var(--c-line); width: 100%; }
  .nav-links a::after { display: none; }
  .nav .nav-cta { display: none; }

  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .split, .contact-grid { grid-template-columns: 1fr; }
  .duo { grid-template-columns: 1fr; }
  .duo .arrows { transform: rotate(90deg); }
  .footer-top { grid-template-columns: 1fr; gap: 1.8rem; }
  .footer-bottom { flex-direction: column; }
}

/* =============================================================================
   TEMAS SELECIONÁVEIS
   -----------------------------------------------------------------------------
   Escolha o tema no arquivo js/config.js  ->  theme: "sober" | "tech" | "ai"
   (o main.js aplica o atributo data-theme no <html> e carrega as fontes).
   Cada bloco abaixo apenas redefine variáveis; nada de regra estrutural.
   ============================================================================= */

/* ---- SÓBRIO: editorial, discreto, corporativo --------------------------- */
[data-theme="sober"] {
  --c-orange: #9C4A1A;          /* terracota calmo */
  --c-orange-hover: #843e16;
  --c-teal: #3F7E7E;            /* teal dessaturado */
  --c-teal-soft: #5a9a9a;
  --c-cream: #F3F1EC;           /* papel neutro */
  --c-mint: #E5ECE7;
  --c-line: rgba(27, 58, 75, 0.10);
  --hero-glow: 0.35;            /* brilho bem sutil */
  --radius: 8px;
  --radius-lg: 12px;
  /* fontes: mantém Fraunces + Hanken Grotesk (padrão) */
}

/* ---- TECH: nítido, geométrico, rótulos em monoespaçada ------------------ */
[data-theme="tech"] {
  --c-navy: #0E2630;
  --c-navy-deep: #081820;
  --c-teal: #15A9BC;            /* ciano */
  --c-teal-soft: #3FD0E0;
  --c-orange: #FF7A33;
  --c-orange-hover: #e5631f;
  --c-cream: #EDF2F3;           /* claro frio */
  --c-mint: #DAE9EC;
  --c-ink: #10242B;
  --c-muted: #51666e;
  --c-line: rgba(14, 38, 48, 0.14);
  --heading: #0E2630;
  --header-bg: rgba(237, 242, 243, 0.85);
  --font-display: "Familjen Grotesk", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --hero-glow: 1;
  --radius: 4px;                /* cantos retos */
  --radius-lg: 6px;
}
[data-theme="tech"] .hero h1,
[data-theme="tech"] h1 { letter-spacing: -0.02em; }

/* ---- IA: escuro, futurista, acentos vibrantes --------------------------- */
[data-theme="ai"] {
  --c-navy: #0A1820;            /* seção mais escura / hero */
  --c-navy-deep: #050D12;
  --c-teal: #2EE6C5;            /* verde-água vibrante */
  --c-teal-soft: #5cf0d6;
  --c-orange: #FF6B3D;          /* coral vibrante (CTA) */
  --c-orange-hover: #ff5526;
  --c-cream: #0E2029;           /* fundo da página: ESCURO */
  --c-white: #142B35;           /* cards: escuros */
  --c-mint: #11252F;            /* superfície suave escura */
  --c-ink: #D6E4E6;             /* texto: claro */
  --c-muted: #8DA3AA;
  --c-line: rgba(255, 255, 255, 0.10);
  --c-line-light: rgba(255, 255, 255, 0.10);
  --heading: #F0F6F5;           /* títulos: claros */
  --on-dark: #EAF4F3;
  --header-bg: rgba(10, 24, 32, 0.82);
  --font-display: "Sora", system-ui, sans-serif;
  --font-body: "Hanken Grotesk", system-ui, sans-serif;
  --hero-glow: 1.2;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-md: 0 14px 40px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 30px 70px rgba(0, 0, 0, 0.55);
}
/* no tema escuro, o brilho do hero ganha o tom verde-água/coral vibrante */
[data-theme="ai"] .hero::after {
  background:
    radial-gradient(55% 85% at 82% 8%, rgba(46, 230, 197, 0.28), transparent 60%),
    radial-gradient(50% 70% at 8% 100%, rgba(255, 107, 61, 0.20), transparent 60%);
}
[data-theme="ai"] .card:hover { border-color: var(--c-teal); }