/* ═══════════════════════════════════════════════════
   URUZ AI — SITE INSTITUCIONAL
   Versão: 1.0 | 2026
   Stack: HTML5 + CSS3 + JS Vanilla | GitHub Pages
═══════════════════════════════════════════════════ */

/* ── RESET ────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; overflow-x: hidden; }
img, video { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ── CUSTOM PROPERTIES ────────────────────────────── */
:root {
  /* Paleta Uruz AI */
  --fundo:      #0D1A13;
  --fundo-2:    #111F17;
  --fundo-card: #142018;
  --verde:      #1A4A32;
  --azul:       #1B3A5C;
  --teal:       #2DA587;
  --teal-hover: #3EC89A;
  --pedra:      #E8E2D9;
  --cinza:      #8A9BAD;
  --cinza-leve: #6B7B8D;
  --borda:      rgba(45, 165, 135, 0.18);
  --borda-sub:  rgba(232, 226, 217, 0.08);

  /* Tipografia */
  --font-titulo: 'Cinzel', Georgia, serif;
  --font-corpo:  'Inter', 'Helvetica Neue', Arial, sans-serif;

  /* Espaçamento */
  --gap-xs:  0.5rem;
  --gap-sm:  1rem;
  --gap-md:  1.5rem;
  --gap-lg:  2.5rem;
  --gap-xl:  4rem;
  --gap-2xl: 6rem;

  /* Raio */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  /* Transição */
  --trans: 0.3s ease;

  /* Container */
  --container: 1200px;
}

/* ── TIPOGRAFIA BASE ──────────────────────────────── */
body {
  font-family: var(--font-corpo);
  background-color: var(--fundo);
  color: var(--pedra);
  line-height: 1.6;
}

h1, h2, h3, h4 { font-family: var(--font-titulo); line-height: 1.15; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 900; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); font-weight: 700; }
h3 { font-size: clamp(1rem, 2.5vw, 1.25rem); font-weight: 600; }
p  { color: var(--cinza); line-height: 1.75; }

/* ── UTILITÁRIOS ──────────────────────────────────── */
.container { max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.runa { font-family: var(--font-titulo); color: var(--teal); }
.teal { color: var(--teal); }

/* Linha divisória animada */
.divisor {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--teal), transparent);
  border: none;
  margin: 0;
  opacity: 0.4;
}

/* Animação de entrada (controlada por JS) */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .fade-in { opacity: 1; transform: none; transition: none; }
}

/* ── NAVEGAÇÃO ────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  transition: background var(--trans), padding var(--trans), box-shadow var(--trans);
}
.nav.scrolled {
  background: rgba(13, 26, 19, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0.875rem 0;
  box-shadow: 0 1px 0 var(--borda);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-titulo);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 3px;
  color: var(--pedra);
  text-transform: uppercase;
}
.nav__logo-runa {
  font-size: 1.5rem;
  color: var(--teal);
  line-height: 1;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--gap-lg);
}
.nav__links a {
  font-family: var(--font-titulo);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cinza);
  transition: color var(--trans);
  position: relative;
}
.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0; right: 100%;
  height: 1px;
  background: var(--teal);
  transition: right var(--trans);
}
.nav__links a:hover, .nav__links a:focus { color: var(--pedra); }
.nav__links a:hover::after, .nav__links a:focus::after { right: 0; }

.nav__cta {
  font-family: var(--font-titulo);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: 0.625rem 1.375rem;
  border: 1px solid var(--teal);
  color: var(--teal);
  border-radius: var(--radius-sm);
  transition: background var(--trans), color var(--trans);
}
.nav__cta:hover, .nav__cta:focus {
  background: var(--teal);
  color: var(--fundo);
}

/* Hambúrguer mobile */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
  color: var(--pedra);
  aria-label: "Menu";
}
.nav__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: currentColor;
  transition: transform var(--trans), opacity var(--trans);
}
.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 768px) {
  .nav__links, .nav__cta { display: none; }
  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: rgba(13, 26, 19, 0.98);
    padding: 2rem 1.5rem;
    gap: var(--gap-md);
    border-top: 1px solid var(--borda);
  }
  .nav__links.open + .nav__cta {
    display: block;
    text-align: center;
    margin: 0 1.5rem 1.5rem;
  }
  .nav__burger { display: flex; }
}

/* ── HERO ─────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 8rem 0 4rem;
}

/* Fundo radial sutil */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 40%, rgba(45,165,135,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 80% 60%, rgba(27,58,92,0.1) 0%, transparent 55%);
  pointer-events: none;
}

.hero__runa-bg {
  position: absolute;
  right: -2%;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-titulo);
  font-size: clamp(20rem, 35vw, 40rem);
  color: rgba(45, 165, 135, 0.035);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  font-weight: 900;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-titulo);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--teal);
  border: 1px solid var(--borda);
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
}
.hero__badge::before { content: 'ᚢ'; font-size: 0.875rem; }

.hero__title {
  margin-bottom: 0.5rem;
  color: var(--pedra);
}
.hero__title .highlight {
  color: var(--teal);
  display: block;
}

.hero__subtitle {
  font-family: var(--font-titulo);
  font-size: clamp(0.875rem, 2vw, 1.125rem);
  font-weight: 400;
  color: var(--cinza);
  letter-spacing: 1px;
  margin-bottom: 1.75rem;
  max-width: 540px;
}

.hero__desc {
  font-size: 1.0625rem;
  color: var(--cinza);
  max-width: 520px;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-sm);
}

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-titulo);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: 0.875rem 1.875rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--trans);
  white-space: nowrap;
  text-align: center;
}
.btn:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; }
.btn-primary {
  background: var(--teal);
  color: var(--fundo);
}
.btn-primary:hover { background: var(--teal-hover); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(45,165,135,0.25); }
.btn-outline {
  background: transparent;
  color: var(--pedra);
  border: 1px solid var(--borda-sub);
}
.btn-outline:hover { border-color: var(--teal); color: var(--teal); }

.hero__scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-titulo);
  font-size: 0.6rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cinza-leve);
}
.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--teal));
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%, 100% { opacity: 0.4; transform: scaleY(0.7); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ── SEÇÕES GERAIS ────────────────────────────────── */
section { padding: var(--gap-2xl) 0; }

.section-label {
  font-family: var(--font-titulo);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.section-label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--teal);
}

/* ── SOBRE / ORIGEM ───────────────────────────────── */
.sobre { background: var(--fundo-2); }

.sobre__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-xl);
  align-items: center;
}

.sobre__runa-display {
  font-family: var(--font-titulo);
  font-size: clamp(6rem, 15vw, 11rem);
  font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--teal);
  text-align: center;
  line-height: 1;
  position: relative;
  opacity: 0.75;
}

.sobre__title { margin-bottom: 1.25rem; color: var(--pedra); }
.sobre__lead {
  font-size: 1.0625rem;
  color: var(--pedra);
  margin-bottom: 1rem;
  line-height: 1.75;
}
.sobre__text { margin-bottom: 1.5rem; }

.sobre__atributos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1.75rem;
}
.atributo {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem;
  border: 1px solid var(--borda);
  border-radius: var(--radius-md);
  background: var(--fundo-card);
  transition: border-color var(--trans);
}
.atributo:hover { border-color: rgba(45,165,135,0.4); }
.atributo__runa {
  font-family: var(--font-titulo);
  font-size: 1.375rem;
  color: var(--teal);
  flex-shrink: 0;
  line-height: 1;
  margin-top: 0.1em;
}
.atributo__titulo {
  font-family: var(--font-titulo);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--pedra);
  margin-bottom: 0.25rem;
}
.atributo__desc { font-size: 0.8125rem; color: var(--cinza); line-height: 1.5; }

@media (max-width: 768px) {
  .sobre__grid { grid-template-columns: 1fr; }
  .sobre__runa-display { font-size: 8rem; }
  .sobre__atributos { grid-template-columns: 1fr; }
}

/* ── SERVIÇOS ─────────────────────────────────────── */
.servicos__header { text-align: center; margin-bottom: var(--gap-xl); }
.servicos__header .section-label { justify-content: center; }
.servicos__header .section-label::before { display: none; }
.servicos__header h2 { margin-bottom: 0.875rem; color: var(--pedra); }
.servicos__header p { max-width: 540px; margin: 0 auto; }

.servicos__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-md);
}

.servico-card {
  background: var(--fundo-card);
  border: 1px solid var(--borda);
  border-radius: var(--radius-lg);
  padding: var(--gap-lg);
  position: relative;
  overflow: hidden;
  transition: border-color var(--trans), transform var(--trans);
}
.servico-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--teal), transparent);
  opacity: 0;
  transition: opacity var(--trans);
}
.servico-card:hover {
  border-color: rgba(45,165,135,0.35);
  transform: translateY(-4px);
}
.servico-card:hover::before { opacity: 1; }

.servico-card__num {
  font-family: var(--font-titulo);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.servico-card__icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  display: block;
  line-height: 1;
  color: var(--teal);
}
.servico-card__title {
  font-family: var(--font-titulo);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--pedra);
  margin-bottom: 0.875rem;
}
.servico-card__desc { font-size: 0.9375rem; line-height: 1.7; margin-bottom: 1.25rem; }
.servico-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}
.tag {
  font-size: 0.6875rem;
  font-weight: 500;
  padding: 0.25rem 0.625rem;
  border-radius: 20px;
  background: rgba(45, 165, 135, 0.1);
  color: var(--teal);
  border: 1px solid rgba(45, 165, 135, 0.2);
}

@media (max-width: 900px) {
  .servicos__grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
}

/* ── METODOLOGIA ──────────────────────────────────── */
.metodologia { background: var(--fundo-2); }

.metodologia__header { margin-bottom: var(--gap-xl); }
.metodologia__header h2 { color: var(--pedra); margin-bottom: 0.875rem; }

.metodologia__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.metodologia__steps::before {
  content: '';
  position: absolute;
  top: 2.25rem;
  left: calc(12.5% + 1.5rem);
  right: calc(12.5% + 1.5rem);
  height: 1px;
  background: linear-gradient(90deg, var(--teal), var(--azul));
  opacity: 0.35;
}

.step {
  padding: var(--gap-md);
  text-align: center;
  position: relative;
}
.step__num {
  width: 4.5rem;
  height: 4.5rem;
  border-radius: 50%;
  border: 1px solid var(--borda);
  background: var(--fundo-card);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--gap-sm);
  font-family: var(--font-titulo);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--teal);
  position: relative;
  z-index: 2;
  transition: background var(--trans), border-color var(--trans);
}
.step:hover .step__num {
  background: rgba(45,165,135,0.12);
  border-color: var(--teal);
}
.step__title {
  font-family: var(--font-titulo);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--pedra);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.step__desc { font-size: 0.875rem; color: var(--cinza); line-height: 1.6; }

@media (max-width: 768px) {
  .metodologia__steps { grid-template-columns: 1fr 1fr; }
  .metodologia__steps::before { display: none; }
}
@media (max-width: 480px) {
  .metodologia__steps { grid-template-columns: 1fr; }
}

/* ── CLIENTES ─────────────────────────────────────── */
.clientes {
  padding: var(--gap-xl) 0;
  border-top: 1px solid var(--borda);
  border-bottom: 1px solid var(--borda);
}
.clientes__inner {
  display: flex;
  align-items: center;
  gap: var(--gap-xl);
  flex-wrap: wrap;
}
.clientes__label {
  font-family: var(--font-titulo);
  font-size: 0.6rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--cinza-leve);
  white-space: nowrap;
}
.clientes__logos {
  display: flex;
  align-items: center;
  gap: var(--gap-xl);
  flex-wrap: wrap;
  flex: 1;
}
.cliente-nome {
  font-family: var(--font-titulo);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cinza);
  transition: color var(--trans);
  opacity: 0.6;
}
.cliente-nome:hover { color: var(--pedra); opacity: 1; }

/* ── CONTATO ──────────────────────────────────────── */
.contato { background: var(--fundo-2); }

.contato__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--gap-xl);
  align-items: start;
}

.contato__info h2 { color: var(--pedra); margin-bottom: 1rem; }
.contato__info p { margin-bottom: var(--gap-md); max-width: 380px; }

.contato__items { display: flex; flex-direction: column; gap: 1rem; margin-top: 1.75rem; }
.contato__item {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
}
.contato__item-icon {
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--borda);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  background: var(--fundo-card);
}
.contato__item-label {
  font-family: var(--font-titulo);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.25rem;
}
.contato__item-value {
  font-size: 0.9375rem;
  color: var(--pedra);
}

/* Formulário */
.form {
  background: var(--fundo-card);
  border: 1px solid var(--borda);
  border-radius: var(--radius-lg);
  padding: var(--gap-lg);
}

.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-family: var(--font-titulo);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cinza);
  margin-bottom: 0.5rem;
}
.form-group label .required { color: var(--teal); margin-left: 0.25rem; }

.form-control {
  width: 100%;
  background: var(--fundo);
  border: 1px solid var(--borda);
  border-radius: var(--radius-sm);
  padding: 0.875rem 1rem;
  color: var(--pedra);
  font-size: 0.9375rem;
  transition: border-color var(--trans), box-shadow var(--trans);
  appearance: none;
  -webkit-appearance: none;
}
.form-control:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(45, 165, 135, 0.12);
}
.form-control::placeholder { color: var(--cinza-leve); }
.form-control.error { border-color: #e05555; }

.form-control-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap-sm); }

textarea.form-control { resize: vertical; min-height: 120px; }

.form-error {
  display: none;
  font-size: 0.8rem;
  color: #e05555;
  margin-top: 0.375rem;
}
.form-control.error + .form-error { display: block; }

/* Honeypot — oculto para humanos, visível para bots */
.hp-field { display: none !important; }

.form__submit { width: 100%; margin-top: 0.5rem; justify-content: center; padding: 1rem 2rem; font-size: 0.75rem; }

.form__status {
  display: none;
  padding: 1rem;
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 0.9375rem;
  margin-top: 1rem;
}
.form__status.success {
  display: block;
  background: rgba(45,165,135,0.12);
  border: 1px solid rgba(45,165,135,0.35);
  color: var(--teal);
}
.form__status.error {
  display: block;
  background: rgba(224,85,85,0.1);
  border: 1px solid rgba(224,85,85,0.3);
  color: #e05555;
}

@media (max-width: 900px) {
  .contato__grid { grid-template-columns: 1fr; }
  .form-control-row { grid-template-columns: 1fr; }
}

/* ── FOOTER ───────────────────────────────────────── */
.footer {
  background: var(--fundo);
  padding: var(--gap-xl) 0 var(--gap-lg);
  border-top: 1px solid var(--borda);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--gap-xl);
  margin-bottom: var(--gap-xl);
}
.footer__brand .nav__logo { margin-bottom: 1rem; }
.footer__brand p { font-size: 0.9rem; color: var(--cinza); line-height: 1.7; max-width: 280px; }

.footer__col-title {
  font-family: var(--font-titulo);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--pedra);
  margin-bottom: 1.25rem;
}
.footer__links { display: flex; flex-direction: column; gap: 0.625rem; }
.footer__links a {
  font-size: 0.9375rem;
  color: var(--cinza);
  transition: color var(--trans);
}
.footer__links a:hover { color: var(--teal); }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--gap-md);
  border-top: 1px solid var(--borda-sub);
  flex-wrap: wrap;
  gap: 0.75rem;
}
.footer__copy {
  font-size: 0.8125rem;
  color: var(--cinza-leve);
}
.footer__runa {
  font-family: var(--font-titulo);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--cinza-leve);
}

@media (max-width: 768px) {
  .footer__grid { grid-template-columns: 1fr; gap: var(--gap-lg); }
  .footer__bottom { flex-direction: column; text-align: center; }
}