/* ============================================
   Aurora Tecnologia — Landing Page
   Paleta: preto & branco · estética premium
   ============================================ */

:root {
  --black: #0a0a0a;
  --black-soft: #111111;
  --white: #fafafa;
  --gray-100: #e8e8e8;
  --gray-400: #9a9a9a;
  --gray-600: #555555;
  --line: rgba(250, 250, 250, 0.12);

  --font-sans: "Inter", system-ui, sans-serif;
  --font-serif: "Playfair Display", Georgia, serif;

  --container: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
}

/* ---------- Botões ---------- */

.btn {
  display: inline-block;
  padding: 14px 32px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid var(--white);
  cursor: pointer;
  transition: background 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s var(--ease);
}

.btn--solid {
  background: var(--white);
  color: var(--black);
}

.btn--solid:hover {
  background: transparent;
  color: var(--white);
}

.btn--outline {
  background: transparent;
  color: var(--white);
}

.btn--outline:hover {
  background: var(--white);
  color: var(--black);
}

.btn--ghost {
  border-color: var(--line);
  color: var(--gray-400);
}

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

.btn--full {
  width: 100%;
  background: var(--white);
  color: var(--black);
  font-family: var(--font-sans);
}

.btn--full:hover {
  background: transparent;
  color: var(--white);
}

/* ---------- Header ---------- */

.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 28px 0;
  transition: background 0.4s var(--ease), padding 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}

.header.is-scrolled {
  padding: 16px 0;
  background: rgba(10, 10, 10, 0.88);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--line);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--white);
  text-decoration: none;
}

.logo--small {
  font-size: 0.85rem;
}

.logo__dot {
  color: var(--gray-400);
}

.nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav__link {
  position: relative;
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-400);
  text-decoration: none;
  transition: color 0.3s;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 1px;
  background: var(--white);
  transition: width 0.35s var(--ease);
}

.nav__link:hover {
  color: var(--white);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__cta {
  padding: 10px 24px;
  font-size: 0.72rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 7px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 1px;
  background: var(--white);
  transition: transform 0.35s var(--ease), opacity 0.3s;
}

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

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

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: clamp(104px, 14vh, 140px) 0 clamp(72px, 10vh, 100px);
  background:
    radial-gradient(ellipse 60% 45% at 70% 15%, rgba(250, 250, 250, 0.055), transparent 70%),
    var(--black);
}

.hero__eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 28px;
}

.hero__title {
  font-size: clamp(2.6rem, 7vw, 5.4rem);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 32px;
}

.hero__subtitle {
  max-width: 560px;
  font-size: 1.05rem;
  color: var(--gray-400);
  margin-bottom: 48px;
}

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

.hero__scroll {
  position: absolute;
  bottom: 0;
  left: 50%;
}

.hero__scroll-line {
  display: block;
  width: 1px;
  height: 72px;
  background: linear-gradient(to bottom, transparent, var(--gray-400));
  animation: scrollPulse 2.4s var(--ease) infinite;
}

@keyframes scrollPulse {
  0%   { transform: scaleY(0); transform-origin: top; }
  45%  { transform: scaleY(1); transform-origin: top; }
  55%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- Seções ---------- */

.section {
  padding: clamp(80px, 11vw, 130px) 0;
  border-top: 1px solid var(--line);
}

.section--alt {
  background: var(--black-soft);
}

.section__head {
  max-width: 640px;
  margin-bottom: 72px;
}

.section__eyebrow {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 18px;
}

.section--light .section__eyebrow {
  color: rgba(10, 10, 10, 0.45);
}

.section__title {
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.section__desc {
  color: var(--gray-400);
  font-size: 1rem;
}

/* ---------- Serviços ---------- */

.services {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 56px 72px;
}

.service {
  padding-top: 28px;
  border-top: 1px solid var(--line);
  transition: border-color 0.4s var(--ease);
}

.service:hover {
  border-top-color: rgba(250, 250, 250, 0.45);
}

.service__title {
  font-size: 1.2rem;
  font-weight: 400;
  margin-bottom: 12px;
}

.service__text {
  font-size: 0.92rem;
  color: var(--gray-400);
  max-width: 420px;
}

/* ---------- Contato ---------- */

.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact__channels {
  list-style: none;
  margin-top: 40px;
}

.contact__channels a {
  color: var(--white);
  text-decoration: none;
  font-size: 1rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 4px;
  transition: border-color 0.3s;
}

.contact__channels a:hover {
  border-color: var(--white);
}

.field {
  margin-bottom: 28px;
}

.field label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 10px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 300;
  padding: 10px 2px;
  resize: vertical;
  transition: border-color 0.3s;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-bottom-color: var(--white);
}

.field select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--gray-400) 50%),
    linear-gradient(135deg, var(--gray-400) 50%, transparent 50%);
  background-position: calc(100% - 16px) 50%, calc(100% - 11px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
  cursor: pointer;
}

.field select option {
  background: var(--black);
  color: var(--white);
}

.form-status {
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--gray-400);
  min-height: 1.4em;
}

/* ---------- Footer ---------- */

.footer {
  border-top: 1px solid var(--line);
  padding: 64px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer__brand .footer__logo {
  margin-bottom: 18px;
}

.footer__tag {
  font-size: 0.88rem;
  color: var(--gray-400);
  max-width: 300px;
}

.footer__nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__nav a {
  font-size: 0.85rem;
  color: var(--gray-400);
  text-decoration: none;
  transition: color 0.3s;
  width: fit-content;
}

.footer__nav a:hover {
  color: var(--white);
}

.footer__label {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 12px;
}

.footer__social {
  display: flex;
  gap: 16px;
  margin-top: 22px;
}

.footer__social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--gray-400);
  transition: color 0.3s, border-color 0.3s;
}

.footer__social-link:hover {
  color: var(--white);
  border-color: var(--white);
}

.footer__contact > a {
  color: var(--white);
  text-decoration: none;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 3px;
  transition: border-color 0.3s;
}

.footer__contact > a:hover {
  border-color: var(--white);
}

.footer__bottom {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  padding-bottom: 24px;
}

.footer__copy {
  font-size: 0.78rem;
  color: var(--gray-600);
}

/* ---------- Logo (imagem) ---------- */

.logo-mark {
  display: inline-flex;
  align-items: center;
}

.logo-mark img {
  height: 44px;
  width: auto;
  display: block;
}

.footer__logo {
  height: 40px;
  width: auto;
}

/* ---------- Fatos do hero ---------- */

.hero__facts {
  display: grid;
  grid-template-columns: repeat(3, auto);
  justify-content: start;
  gap: clamp(32px, 6vw, 88px);
  margin-top: clamp(56px, 8vh, 88px);
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.hero__fact dt {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 8px;
}

.hero__fact dd {
  font-size: 0.95rem;
  color: var(--gray-100);
  margin: 0;
}

/* ---------- Cabeçalho de seção centralizado ---------- */

.section__head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* ---------- Produtos ---------- */

.products {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  gap: clamp(20px, 2.5vw, 32px);
  align-items: start;
}

.product {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  padding: 28px;
  height: 100%;
  transition: border-color 0.4s var(--ease), background 0.4s var(--ease);
}

.product:hover {
  border-color: rgba(250, 250, 250, 0.4);
  background: rgba(250, 250, 250, 0.02);
}

.product__media {
  position: relative;
  aspect-ratio: 1672 / 941;
  margin-bottom: 28px;
  border-radius: 6px;
  background: var(--black);
  overflow: hidden;
}

.product__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}

.product:hover .product__img {
  transform: scale(1.04);
}

.product__title {
  font-size: 1.3rem;
  font-weight: 400;
  margin-bottom: 8px;
}

.product__sub {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-600);
  vertical-align: middle;
  margin-left: 6px;
}

.product__tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1rem;
  color: var(--gray-100);
  margin-bottom: 14px;
}

.product__text {
  font-size: 0.88rem;
  color: var(--gray-400);
  margin-bottom: 18px;
}

.product__features {
  list-style: none;
  margin-bottom: 28px;
  flex-grow: 1;
}

.product__features li {
  position: relative;
  font-size: 0.85rem;
  color: var(--gray-400);
  padding: 7px 0 7px 22px;
  border-bottom: 1px solid rgba(250, 250, 250, 0.06);
}

.product__features li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--gray-600);
}

.product__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
}

.product__link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-100);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 6px;
  transition: border-color 0.3s, color 0.3s;
}

.product__link svg {
  flex-shrink: 0;
  opacity: 0.7;
}

.product__link:hover {
  color: var(--white);
  border-color: var(--white);
}

/* ---------- Timeline (processo) ---------- */

.timeline {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px 40px;
}

.timeline__step {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  transition: border-color 0.4s var(--ease);
}

.timeline__step:hover {
  border-top-color: rgba(250, 250, 250, 0.45);
}

.timeline__number {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--gray-600);
  margin-bottom: 18px;
}

.timeline__title {
  font-size: 1.05rem;
  font-weight: 400;
  margin-bottom: 10px;
}

.timeline__text {
  font-size: 0.88rem;
  color: var(--gray-400);
}

/* ---------- Seção clara (diferencial) ---------- */

.section--light {
  background: var(--white);
  color: var(--black);
}

.section--light .section__title {
  color: var(--black);
}

.differential {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(48px, 6vw, 88px);
  align-items: start;
}

.principles {
  list-style: none;
}

.principle {
  display: flex;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid rgba(10, 10, 10, 0.12);
}

.principle:first-child {
  padding-top: 8px;
}

.principle__number {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: rgba(10, 10, 10, 0.35);
  line-height: 1.2;
}

.principle__title {
  font-size: 1.05rem;
  font-weight: 500;
  margin-bottom: 8px;
}

.principle__text {
  font-size: 0.9rem;
  color: var(--gray-600);
}

.differential__text {
  color: var(--gray-600);
  font-size: 1rem;
  margin-bottom: 20px;
}

.differential__content .btn--dark {
  margin-top: 16px;
}

.btn--dark {
  border-color: var(--black);
  background: var(--black);
  color: var(--white);
}

.btn--dark:hover {
  background: transparent;
  color: var(--black);
}

/* ---------- Tag flutuante de WhatsApp ---------- */

.whats-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 20px;
  border-radius: 999px;
  background: #25d366;
  color: #fff;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
  transition: transform 0.3s var(--ease), background 0.3s;
}

.whats-float:hover {
  background: #1ebe5d;
  transform: translateY(-2px);
}

@media (max-width: 560px) {
  .whats-float {
    right: 16px;
    bottom: 16px;
    padding: 14px;
  }

  .whats-float__label {
    display: none;
  }
}

/* ---------- Escala no desktop ---------- */
/* Equivale ao zoom de 80% do navegador: tipografia e espaços
   mais compactos em telas grandes, sem afetar o mobile. */

@media (min-width: 1100px) {
  body { zoom: 0.8; }
}

/* ---------- Animações de entrada ---------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__scroll-line { animation: none; }
}

/* ---------- Responsivo ---------- */

@media (min-width: 1680px) {
  :root {
    --container: 1320px;
  }

  body {
    font-size: 1.0625rem;
  }
}

@media (max-width: 1024px) {
  .timeline {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .services {
    grid-template-columns: 1fr;
  }

  .differential {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .contact {
    grid-template-columns: 1fr;
    gap: 56px;
  }
}

@media (max-width: 720px) {
  .nav {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    gap: 36px;
    background: rgba(10, 10, 10, 0.97);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s var(--ease);
  }

  .nav.is-open {
    opacity: 1;
    pointer-events: auto;
  }

  .nav__link {
    font-size: 1rem;
  }

  .nav-toggle {
    display: flex;
    position: relative;
    z-index: 110;
  }

  .logo-mark img {
    height: 36px;
  }

  .timeline {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero__facts {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 18px;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__actions .btn {
    text-align: center;
  }

  .product {
    padding: 22px 18px;
  }

  .services {
    gap: 36px;
  }

  .principle {
    gap: 16px;
  }
}