/* =========================================================================
   THE BOX AI — Estilos
   Mobile-first · design system Cyan Isometric
   ========================================================================= */

/* ---------- Tokens independentes de tema ---------- */
:root {
  --radius: 16px;
  --radius-sm: 10px;
  --max-width: 1100px;
  --transition: 0.3s ease;

  --whatsapp: #25D366;
  --whatsapp-dark: #128C7E;
}

/* ---------- Tema ESCURO (único) ---------- */
:root {
  --bg: #020714;
  --bg-elevated: #041022;
  --bg-card: #071A31;
  --bg-card-hover: #09213F;
  --text-primary: #F4FBFF;
  --text-secondary: #9BB6C9;
  --text-muted: #6D8497;
  --border: rgba(0, 229, 255, 0.16);
  --border-hover: rgba(0, 229, 255, 0.32);
  --shadow-color: rgba(0, 8, 20, 0.62);

  --accent: #00E5FF;
  --accent-strong: #14F1FF;
  --accent-dark: #008FC7;
  --accent-blue: #1677FF;
  --accent-soft: rgba(0, 229, 255, 0.12);
  --accent-contrast: #00131A;
  --line: rgba(0, 229, 255, 0.16);
  --glow: rgba(0, 229, 255, 0.35);
  --white-glow: #E9FFFF;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color var(--transition), color var(--transition);
}

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

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

/* ---------- Acessibilidade ---------- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background-color: var(--accent);
  color: var(--accent-contrast);
  font-weight: 600;
  padding: 0.6rem 1.1rem;
  border-radius: 0 0 10px 0;
}

.skip-link:focus {
  left: 0;
}

/* ---------- Utilidades ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.fade-in {
  opacity: 1;
  transform: none;
}

.js .fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.js .fade-in.visible,
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1rem;
  padding: 1rem 2rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), color var(--transition), border-color var(--transition);
  text-align: center;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-whatsapp {
  background-color: var(--whatsapp);
  color: #00140A;
  font-size: 1.1rem;
  padding: 1.1rem 2.2rem;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.25);
}

.btn-whatsapp:hover {
  background-color: var(--whatsapp-dark);
  color: #ffffff;
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.35);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 0;
  transition: background-color var(--transition), backdrop-filter var(--transition);
}

.header.scrolled {
  background-color: rgba(2, 7, 20, 0.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 229, 255, 0.10);
}

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
}

.brand-mark {
  width: 42px;
  height: 42px;
  object-fit: contain;
  border-radius: 12px;
  filter: drop-shadow(0 0 18px var(--glow));
}

.brand-wordmark {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.brand-wordmark strong {
  color: var(--accent);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-cta {
  display: none;
}

/* ---------- Seletor de idioma ---------- */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
  padding: 0.2rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background-color: color-mix(in srgb, var(--bg-elevated) 70%, transparent);
}

.lang-option {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.1rem;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--text-muted, #9fb3c8);
  text-decoration: none;
  transition: color 0.18s ease, background-color 0.18s ease;
}

.lang-option:hover {
  color: var(--accent);
}

.lang-option.is-active {
  color: var(--accent-contrast);
  background-color: var(--accent);
}

.lang-option:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 7rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: min(900px, 120%);
  height: 600px;
  background: radial-gradient(closest-side, color-mix(in srgb, var(--accent) 16%, transparent), transparent);
  opacity: 0.7;
  pointer-events: none;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-layout {
  display: grid;
  gap: 2.5rem;
  align-items: center;
  text-align: center;
}

.hero-copy {
  max-width: 640px;
  margin: 0 auto;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  order: -1;
}

.hero-visual::before {
  content: "";
  position: absolute;
  width: min(70vw, 360px);
  height: min(70vw, 360px);
  background: radial-gradient(circle, rgba(0, 229, 255, 0.22), transparent 65%);
  filter: blur(8px);
  z-index: 0;
}

.hero-logo {
  position: relative;
  z-index: 1;
  width: min(58vw, 360px);
  max-width: 420px;
  height: auto;
  border-radius: clamp(20px, 6vw, 30px);
  filter: drop-shadow(0 24px 60px rgba(0, 229, 255, 0.22));
}

.hero-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  background-color: color-mix(in srgb, var(--accent) 12%, transparent);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(1.35rem, 6vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  text-wrap: balance;
}

/* Cada frase do título começa em uma linha, mas pode quebrar sem invadir a logo. */
.hero h1 .hero-line {
  display: block;
}

.hero p {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 2.5rem;
  line-height: 1.6;
}

.hero .btn-whatsapp {
  font-size: 1.15rem;
  padding: 1.2rem 2.5rem;
  margin-bottom: 1rem;
}

.hero-support {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-align: center;
}

.hero-support::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 0.4rem;
  vertical-align: middle;
  background-color: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* No mobile, o hero não força 100vh (evita o vão grande abaixo do CTA)
   e o espaço entre o hero e a primeira seção é reduzido à metade.
   No desktop, o 100vh do base segue valendo. */
@media (max-width: 767px) {
  .hero {
    min-height: auto;
    padding: 6.5rem 0 1.5rem;
  }

  .hero + .section {
    padding-top: 2.5rem;
  }
}

/* ---------- Títulos de seção ---------- */
.section-title {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  text-align: center;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  text-align: center;
  max-width: 500px;
  margin: 0 auto 3rem;
}

/* ---------- Serviços ---------- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.service-card {
  background:
    radial-gradient(circle at top left, var(--accent-soft), transparent 46%),
    var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background-color var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  background-color: var(--bg-card-hover);
  box-shadow: 0 16px 48px rgba(0, 229, 255, 0.10);
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.service-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ---------- Case ---------- */
.case-wrapper {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--bg-card) 92%, var(--accent) 8%), var(--bg-card));
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.case-wrapper:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: 0 20px 50px var(--shadow-color), 0 0 42px rgba(0, 229, 255, 0.10);
}

.case-image {
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #020714 0%, #063D67 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-image-text {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  border-radius: 12px;
  background-color: rgba(2, 7, 20, 0.84);
  color: #f5f5f5;
  box-shadow: 0 12px 34px rgba(0, 8, 20, 0.32);
  padding: 0.55rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 700;
  z-index: 2;
}

.case-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(2, 7, 20, 0.64), transparent 62%);
}

.case-content {
  padding: 1.75rem;
}

.case-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.case-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  line-height: 1.55;
}

.case-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--accent);
  transition: gap var(--transition);
}

.case-link:hover {
  gap: 0.7rem;
}

.case-link::after {
  content: "→";
}

/* ---------- Passos ---------- */
.steps {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 700px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--accent);
  color: var(--accent-contrast);
  font-weight: 800;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.18);
}

.step-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  margin-top: 0.15rem;
}

.step-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.55;
}

/* ---------- Sobre ---------- */
.about-text {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.about-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ---------- Contato ---------- */
.contact-box {
  text-align: center;
  max-width: 500px;
  margin: 0 auto;
}

.contact-box .btn-whatsapp {
  font-size: 1.2rem;
  padding: 1.25rem 2.75rem;
  margin-bottom: 1rem;
  width: 100%;
  max-width: 320px;
}

.contact-hours {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.contact-email {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.contact-email a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

.contact-email a:hover {
  color: var(--accent);
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  text-align: center;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.footer-links a {
  color: var(--text-secondary);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
  opacity: 0.7;
}

/* ---------- WhatsApp flutuante ---------- */
.fab {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 99;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--whatsapp);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35);
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
}

.fab.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.fab:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.45);
}

/* ---------- 404 ---------- */
.error-page {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8rem 0 5rem;
}

.error-code {
  font-size: clamp(4rem, 18vw, 9rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--accent);
}

.error-page h1 {
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 700;
  margin: 1rem 0 0.75rem;
}

.error-page p {
  color: var(--text-secondary);
  max-width: 440px;
  margin: 0 auto 2rem;
}

/* ---------- Responsivo ---------- */
@media (min-width: 640px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .header-cta {
    display: inline-flex;
    font-size: 0.85rem;
    padding: 0.6rem 1.2rem;
  }

  .footer-links {
    flex-direction: row;
    justify-content: center;
    gap: 2rem;
  }
}

@media (min-width: 768px) {
  .section {
    padding: 6rem 0;
  }

  .brand-mark {
    width: 48px;
    height: 48px;
  }

  .brand-wordmark {
    font-size: 1.08rem;
  }

  .hero {
    min-height: auto;
    padding: 8rem 0 3rem;
  }

  .hero + .section {
    padding-top: 3rem;
  }

  .hero-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
    text-align: left;
  }

  .hero-copy {
    margin: 0;
  }

  .hero-visual {
    order: 0;
  }

  .hero h1,
  .hero p {
    margin-left: 0;
    margin-right: 0;
  }

  .hero-support {
    text-align: left;
  }

  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .service-card {
    padding: 2rem;
  }

  .case-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .case-image {
    aspect-ratio: auto;
    height: 100%;
    min-height: 280px;
  }

  .case-content {
    padding: 2.5rem;
  }

  .contact-box .btn-whatsapp {
    width: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }

  .fab,
  .hero-support::before {
    transition: none;
    animation: none;
  }
}