/**
 * INFOCTO — Landing Page
 * Estilos globais: variáveis, reset leve, layout e componentes.
 * Mobile First — breakpoints em rem.
 */

/* -------------------------------------------------------------------------- */
/* Variáveis de tema (paleta: ametista → coral, fundo antracite)              */
/* -------------------------------------------------------------------------- */
:root {
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;

  --color-bg-deep: #0a0a0c;
  --color-bg: #121218;
  --color-bg-elevated: #1a1a22;
  --color-surface: #22222e;
  --color-border: rgba(255, 255, 255, 0.08);

  --color-text: #f4f4f5;
  --color-text-muted: #a1a1aa;
  --color-text-subtle: #71717a;

  --gradient-brand: linear-gradient(
    135deg,
    #a855f7 0%,
    #c084fc 25%,
    #f97316 75%,
    #fb923c 100%
  );
  --gradient-brand-soft: linear-gradient(
    135deg,
    rgba(168, 85, 247, 0.15) 0%,
    rgba(249, 115, 22, 0.12) 100%
  );

  --radius-sm: 0.5rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.25rem;

  --shadow-glow: 0 0 80px rgba(168, 85, 247, 0.12);
  --header-h: 4.25rem;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --duration: 0.65s;
}

/* -------------------------------------------------------------------------- */
/* Reset leve + base                                                          */
/* -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg-deep);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(168, 85, 247, 0.18), transparent 55%),
    radial-gradient(ellipse 80% 50% at 100% 50%, rgba(249, 115, 22, 0.06), transparent 45%),
    radial-gradient(ellipse 60% 40% at 0% 80%, rgba(168, 85, 247, 0.05), transparent 40%);
  background-attachment: fixed;
  min-height: 100vh;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

/* -------------------------------------------------------------------------- */
/* Utilitários de layout                                                      */
/* -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: 72rem;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

@media (min-width: 48rem) {
  .container {
    padding-inline: 1.75rem;
  }
}

/* -------------------------------------------------------------------------- */
/* Animação ao rolar (classe aplicada via JS)                                 */
/* -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(1.5rem);
  transition:
    opacity var(--duration) var(--ease-out),
    transform var(--duration) var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal.is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }

  html {
    scroll-behavior: auto;
  }
}

.reveal-delay-1 {
  transition-delay: 0.08s;
}

.reveal-delay-2 {
  transition-delay: 0.16s;
}

.reveal-delay-3 {
  transition-delay: 0.24s;
}

/* -------------------------------------------------------------------------- */
/* Cabeçalho                                                                  */
/* -------------------------------------------------------------------------- */
/**
 * Cabeçalho translúcido: a logo em PNG com alpha mostra o degradê do body
 * por baixo das áreas transparentes. Um header opaco + backdrop-filter
 * “colava” uma chapada escura por cima do fundo da página.
 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  border-bottom: 1px solid var(--color-border);
  background: linear-gradient(
    to bottom,
    rgba(10, 10, 12, 0.42) 0%,
    rgba(10, 10, 12, 0.22) 100%
  );
  backdrop-filter: blur(8px) saturate(1.15);
  -webkit-backdrop-filter: blur(8px) saturate(1.15);
}

.site-header__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  height: 100%;
  gap: 0.75rem;
  max-width: 72rem;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

@media (min-width: 48rem) {
  .site-header__inner {
    padding-inline: 1.75rem;
  }
}

.site-header__logo-link {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-header__logo {
  width: 2.5rem;
  height: 2.5rem;
  object-fit: contain;
  /* Sem fundo nem raio: evita “caixa” visual; o PNG com alpha compõe direto */
  background: none;
}

@media (min-width: 48rem) {
  .site-header__logo {
    width: 2.75rem;
    height: 2.75rem;
  }
}

/* Título central: coluna do meio ocupa o espaço e centraliza o texto */
.site-header__brand {
  justify-self: center;
  text-align: center;
}

.site-header__title {
  margin: 0;
  font-size: clamp(1.125rem, 4vw, 1.75rem);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.1;
}

/* Espaçador invisível para equilibrar o grid (mesma largura aprox. do logo) */
.site-header__spacer {
  width: 2.5rem;
  flex-shrink: 0;
}

@media (min-width: 48rem) {
  .site-header__spacer {
    width: 2.75rem;
  }
}

/* -------------------------------------------------------------------------- */
/* Hero                                                                       */
/* -------------------------------------------------------------------------- */
.hero {
  padding-block: clamp(3rem, 10vw, 5.5rem);
  text-align: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: var(--gradient-brand-soft);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  margin-bottom: 1.5rem;
}

.hero__badge-dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--gradient-brand);
}

/* Logo grande na hero (após a pill), centrada */
.hero__logo-display {
  margin: 0 auto 1.75rem;
  padding: 0;
  max-width: min(22rem, 88vw);
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__logo-display__img {
  width: clamp(11rem, 52vw, 22rem);
  height: auto;
  max-width: 100%;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 12px 40px rgba(168, 85, 247, 0.2));
}

@media (min-width: 48rem) {
  .hero__logo-display__img {
    width: clamp(14rem, 28vw, 24rem);
  }
}

.hero__headline {
  margin: 0 auto 1.25rem;
  max-width: 20ch;
  font-size: clamp(1.75rem, 6vw, 3rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

@media (min-width: 48rem) {
  .hero__headline {
    max-width: 22ch;
  }
}

.hero__headline-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__sub {
  margin: 0 auto;
  max-width: 36rem;
  font-size: clamp(1rem, 2.5vw, 1.125rem);
  color: var(--color-text-muted);
}

.hero__cta-wrap {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s;
}

.btn:focus-visible {
  outline: 2px solid #c084fc;
  outline-offset: 2px;
}

.btn--primary {
  color: #0a0a0c;
  background: var(--gradient-brand);
  box-shadow: var(--shadow-glow);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 100px rgba(249, 115, 22, 0.2);
}

.btn--ghost {
  color: var(--color-text);
  background: transparent;
  border: 1px solid var(--color-border);
}

.btn--ghost:hover {
  background: var(--color-bg-elevated);
  transform: translateY(-2px);
}

/* -------------------------------------------------------------------------- */
/* Seção "O que é" + cards                                                    */
/* -------------------------------------------------------------------------- */
.section {
  padding-block: clamp(3rem, 8vw, 5rem);
}

.section__header {
  text-align: center;
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.section__eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #c084fc;
}

.section__title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.section__intro {
  margin: 0 auto;
  max-width: 42rem;
  color: var(--color-text-muted);
  font-size: 1.0625rem;
}

.octopus-grid {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

@media (min-width: 48rem) {
  .octopus-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

.octopus-card {
  padding: 1.5rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glow);
}

.octopus-card__icon {
  font-size: 2rem;
  line-height: 1;
  margin-bottom: 0.75rem;
}

.octopus-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 700;
}

.octopus-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* Cards de categorias */
.cards-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2.5rem;
}

@media (min-width: 30rem) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 62rem) {
  .cards-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

.category-card {
  position: relative;
  overflow: hidden;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color 0.25s, transform 0.25s var(--ease-out);
}

.category-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-brand-soft);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.category-card:hover {
  border-color: rgba(168, 85, 247, 0.35);
  transform: translateY(-4px);
}

.category-card:hover::before {
  opacity: 1;
}

.category-card > * {
  position: relative;
  z-index: 1;
}

.category-card__label {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fb923c;
  margin-bottom: 0.5rem;
}

.category-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 700;
}

.category-card p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* -------------------------------------------------------------------------- */
/* Rodapé                                                                     */
/* -------------------------------------------------------------------------- */
.site-footer {
  margin-top: auto;
  padding-block: 2.5rem 2rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
  background: rgba(10, 10, 12, 0.6);
}

.site-footer__copy {
  margin: 0 0 1rem;
  font-size: 0.875rem;
  color: var(--color-text-subtle);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  justify-content: center;
  align-items: center;
  font-size: 0.875rem;
}

.site-footer__links a {
  color: var(--color-text-muted);
}

.site-footer__links a:hover {
  color: #f4f4f5;
}

.site-footer__sep {
  display: none;
  color: var(--color-text-subtle);
}

@media (min-width: 30rem) {
  .site-footer__sep {
    display: inline;
  }
}

/* Layout principal: footer colado ao fundo em páginas curtas */
.page-wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-wrap main {
  flex: 1;
}

/* Acessibilidade: título de seção apenas para leitores de tela */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}