/* ==========================================================================
   LSanches Technology | folha de estilo
   Sem dependências externas. Escrita mobile first.
   Ícones: formas do conjunto Feather (licença MIT), embutidas no index.html.
   ========================================================================== */

:root {
  --primary: #0f172a;
  --primary-2: #1e3a8a;
  --secondary: #2563eb;
  --secondary-dark: #1d4ed8;
  --sky: #93c5fd;
  --light: #f8fafc;
  --text: #475569;
  --border: #e2e8f0;

  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 14px 34px rgba(15, 23, 42, 0.1);

  --gutter: clamp(1.25rem, 5vw, 2rem);
  --header-h: 4rem;

  /* Fonte do sistema: Segoe UI no Windows, San Francisco no Apple, Roboto no Android */
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

/* ---------- Base ---------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

p {
  margin: 0 0 1rem;
}

h1,
h2,
h3 {
  margin: 0 0 0.75rem;
  color: var(--primary);
  line-height: 1.15;
  text-wrap: balance;
}

a {
  color: var(--secondary);
}

:focus-visible {
  outline: 3px solid var(--secondary);
  outline-offset: 3px;
}

.hero :focus-visible,
.cta :focus-visible,
.site-footer :focus-visible,
.card-featured :focus-visible,
.founder :focus-visible,
.skip-link:focus-visible {
  outline-color: #fff;
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* ---------- Utilitários ---------- */

.container {
  width: 100%;
  max-width: 75rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.skip-link {
  position: absolute;
  z-index: 1000;
  left: 1rem;
  top: -4rem;
  padding: 0.75rem 1.1rem;
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  transition: top 0.15s;
}

.skip-link:focus {
  top: 1rem;
}

.icon {
  flex: none;
  width: 1.25em;
  height: 1.25em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- Botões ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-height: 2.75rem;
  padding: 0.75rem 1.4rem;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s, color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.btn-primary {
  background: var(--secondary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  background: var(--secondary-dark);
  transform: translateY(-1px);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
}

.btn-ghost:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.btn-light {
  background: #fff;
  color: var(--primary);
}

.btn-light:hover {
  background: #eff6ff;
}

.btn-lg {
  min-height: 3.25rem;
  padding: 0.9rem 1.6rem;
  font-size: 1.0625rem;
}

.btn-sm {
  min-height: 2.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.9375rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.actions-center {
  justify-content: center;
}

@media (max-width: 479.98px) {
  .actions .btn {
    width: 100%;
  }
}

/* ---------- Cabeçalho e navegação ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  backdrop-filter: saturate(180%) blur(10px);
  box-shadow: 0 1px 0 var(--border);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.25rem 1rem;
  min-height: var(--header-h);
}

/* Logotipo: só tipografia. Nome em caixa-alta, "Technology" pequeno e espaçado, e uma barra azul.
   É texto de verdade (sem imagem), então acompanha a fonte do sistema e fica nítido em qualquer tela. */
.brand {
  display: inline-flex;
  flex-direction: column;
  gap: 0.32rem;
  padding-left: 0.7rem;
  border-left: 4px solid var(--secondary);
  color: var(--primary);
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
}

.brand-word {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.brand-sub {
  color: var(--secondary);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.5em;
}

/* Com JavaScript o menu vira painel, então marca e botão ficam sempre na mesma linha */
.js .header-inner {
  flex-wrap: nowrap;
}

@media (max-width: 359.98px) {
  .brand-word {
    font-size: 1.15rem;
    letter-spacing: 0.1em;
  }

  .brand-sub {
    font-size: 0.56rem;
    letter-spacing: 0.44em;
  }
}

.nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.nav a:not(.btn) {
  display: inline-block;
  padding: 0.5rem 0.8rem;
  border-radius: 8px;
  color: var(--primary);
  font-weight: 500;
  text-decoration: none;
  transition: background-color 0.2s, color 0.2s;
}

.nav a:not(.btn):hover {
  background: var(--light);
  color: var(--secondary);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--primary);
  cursor: pointer;
}

.nav-toggle .icon {
  width: 1.4rem;
  height: 1.4rem;
}

.nav-toggle .icon-close {
  display: none;
}

.nav-toggle[aria-expanded="true"] .icon-menu {
  display: none;
}

.nav-toggle[aria-expanded="true"] .icon-close {
  display: block;
}

/* Celular: menu em painel, só quando o JavaScript está ativo */
@media (max-width: 859.98px) {
  .js .nav-toggle {
    display: inline-flex;
  }

  .js .site-header .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 0.25rem var(--gutter) 1.25rem;
    background: #fff;
    box-shadow: 0 14px 24px rgba(15, 23, 42, 0.12), 0 1px 0 var(--border);
  }

  .js .site-header.is-open .nav {
    display: block;
  }

  .js .nav ul {
    flex-direction: column;
    gap: 0;
  }

  .js .nav a:not(.btn) {
    display: block;
    padding: 0.95rem 0.25rem;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
  }

  .js .nav-cta {
    width: 100%;
    margin-top: 1.1rem;
  }
}

@media (min-width: 860px) {
  :root {
    --header-h: 4.5rem;
  }

  .nav {
    display: flex;
    align-items: center;
    gap: 1.25rem;
  }
}

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

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding-block: clamp(3.5rem, 9vw, 6.5rem) clamp(6rem, 10vw, 8.5rem);
  color: #fff;
  background:
    radial-gradient(52rem 28rem at 88% -8%, rgba(37, 99, 235, 0.5), transparent 62%),
    radial-gradient(36rem 24rem at -4% 108%, rgba(30, 58, 138, 0.65), transparent 62%),
    linear-gradient(180deg, #0b1220 0%, var(--primary) 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.07) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 70% 35%, #000 0%, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 70% at 70% 35%, #000 0%, transparent 75%);
}

@media (min-width: 960px) {
  .hero {
    min-height: clamp(34rem, 78vh, 44rem);
  }
}

.hero-inner {
  position: relative;
}

.hero-copy {
  max-width: 44rem;
}

.hero-art {
  display: none;
}

@media (min-width: 960px) {
  .hero-art {
    display: block;
    position: absolute;
    z-index: -1;
    top: 50%;
    right: -1rem;
    width: min(32rem, 44%);
    aspect-ratio: 7 / 6;
    transform: translateY(-50%);
    background: url("../assets/img/hero-network.svg") center / contain no-repeat;
    pointer-events: none;
  }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 1.25rem;
  padding: 0.35rem 0.9rem;
  border: 1px solid rgba(147, 197, 253, 0.35);
  border-radius: 1.1rem;
  background: rgba(37, 99, 235, 0.15);
  color: var(--sky);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-wrap: balance;
}

@media (max-width: 479.98px) {
  .eyebrow {
    gap: 0.5rem;
    padding: 0.35rem 0.8rem;
    font-size: 0.75rem;
    letter-spacing: 0.04em;
  }
}

.eyebrow::before {
  content: "";
  flex: none;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: #60a5fa;
  box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.25);
}

.hero h1 {
  margin-bottom: 1.25rem;
  color: #fff;
  font-size: clamp(2.25rem, 1.2rem + 4.2vw, 3.5rem);
  letter-spacing: -0.02em;
}

.lead {
  max-width: 40rem;
  margin-bottom: 2rem;
  color: #dbeafe;
  font-size: clamp(1.0625rem, 0.95rem + 0.5vw, 1.25rem);
}

/* ---------- Números ---------- */

.stats {
  position: relative;
  z-index: 2;
  margin-top: -3.25rem;
}

.stats-card {
  display: grid;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem;
  text-align: center;
}

.stat + .stat {
  border-top: 1px solid var(--border);
}

/* Altura mínima igual para os três valores: os rótulos começam na mesma linha */
.stat-value {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 3.1rem;
  color: var(--secondary);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.stat-value--text {
  font-size: 1.5rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.stat-label {
  margin-top: 0.35rem;
  font-size: 0.9375rem;
  line-height: 1.45;
}

@media (min-width: 760px) {
  .stats-card {
    grid-template-columns: repeat(3, 1fr);
  }

  .stat {
    padding: 1.9rem 1.5rem;
  }

  .stat + .stat {
    border-top: 0;
    border-left: 1px solid var(--border);
  }

  .stat-value--text {
    font-size: clamp(1.1rem, 1.9vw, 1.5rem);
  }
}

/* ---------- Seções ---------- */

.section {
  padding-block: clamp(4rem, 8vw, 6rem);
}

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

.section-head {
  max-width: 42rem;
  margin: 0 auto clamp(2.5rem, 5vw, 3.75rem);
  text-align: center;
}

.section-head p:last-child {
  margin-bottom: 0;
}

.section h2 {
  font-size: clamp(1.75rem, 1.2rem + 1.8vw, 2.5rem);
  letter-spacing: -0.015em;
}

.kicker {
  margin: 0 0 0.6rem;
  color: var(--secondary);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ---------- Serviços ---------- */

.services-grid {
  display: grid;
  gap: 1.25rem;
}

.card {
  display: flex;
  flex-direction: column;
  padding: 1.75rem;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: #cbd5e1;
  box-shadow: var(--shadow-md);
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin-bottom: 1.1rem;
  border-radius: 12px;
  background: #eff6ff;
  color: var(--secondary);
}

.card-icon .icon {
  width: 1.5rem;
  height: 1.5rem;
}

.card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

.card p:last-child {
  margin-bottom: 0;
}

.card-featured {
  border-color: transparent;
  background: linear-gradient(145deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #dbeafe;
}

.card-featured:hover {
  border-color: transparent;
}

.card-featured h3 {
  color: #fff;
  font-size: 1.6rem;
}

.card-featured .card-icon {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.checklist {
  display: grid;
  gap: 0.65rem;
  margin: 1.25rem 0 1.75rem;
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.checklist .icon {
  margin-top: 0.22em;
  color: #60a5fa;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: 0.5rem;
  margin-top: auto;
  padding-bottom: 0.15rem;
  border-bottom: 2px solid rgba(255, 255, 255, 0.35);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 0.2s;
}

.link-arrow:hover {
  border-color: #fff;
}

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

  .card-featured,
  .services-grid > .card:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .card-featured {
    grid-column: 1 / 3;
    grid-row: 1 / 3;
    padding: 2.25rem;
  }

  .services-grid > .card:last-child {
    grid-column: auto;
  }
}

/* ---------- Sobre ---------- */

.about {
  display: grid;
  align-items: center;
  gap: 2.5rem;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-text h2 {
  margin-bottom: 1.25rem;
}

.founder {
  padding: 2.25rem 2rem;
  border-radius: var(--radius);
  background:
    radial-gradient(22rem 14rem at 100% 0%, rgba(59, 130, 246, 0.4), transparent 70%),
    linear-gradient(145deg, var(--primary) 0%, var(--primary-2) 100%);
  box-shadow: var(--shadow-md);
  color: #dbeafe;
  text-align: center;
}

.founder-photo {
  display: grid;
  place-items: center;
  width: 7.5rem;
  height: 7.5rem;
  margin: 0 auto 1.25rem;
  overflow: hidden;
  border: 2px solid rgba(147, 197, 253, 0.55);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.founder-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.founder h3 {
  margin-bottom: 0.15rem;
  color: #fff;
  font-size: 1.35rem;
}

.founder-role {
  margin-bottom: 1.5rem;
}

@media (min-width: 900px) {
  .about {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 4.5rem;
  }
}

/* ---------- Iniciativas ---------- */

.initiatives {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 960px) {
  .initiatives {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Cada cartão: quadro escuro com a marca do projeto, nome, descrição, etiquetas e a ação no pé */
.initiative-art {
  display: grid;
  place-items: center;
  min-height: 11rem;
  margin-bottom: 1.4rem;
  border-radius: 12px;
  background:
    radial-gradient(circle at 50% 40%, rgba(37, 99, 235, 0.38), transparent 62%),
    #0b1220;
}

.initiative-logo {
  width: min(70%, 12.5rem);
  height: auto;
}

.pixel {
  width: 6rem;
  height: 6rem;
}

.initiative-icon {
  width: 4.5rem;
  height: 4.5rem;
  color: var(--sky);
  stroke-width: 1.5;
}

.initiative-sub {
  margin: 0 0 0.6rem;
  color: var(--secondary);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.initiative h3 {
  margin-bottom: 0.6rem;
  font-size: 1.5rem;
}

.initiative .tags {
  margin: 1rem 0 1.5rem;
}

/* A ação fica sempre no pé do cartão, mesmo com textos de tamanhos diferentes */
.initiative .btn,
.initiative .soon {
  align-self: flex-start;
  margin-top: auto;
}

/* Em telas médias os cartões ficam empilhados, então o quadro escuro vai para o lado do texto (menos rolagem) */
@media (min-width: 640px) and (max-width: 959.98px) {
  .initiative {
    display: grid;
    grid-template-columns: 13rem 1fr;
    column-gap: 1.75rem;
    align-content: start;
  }

  .initiative-art {
    grid-row: 1 / span 5;
    align-self: start;
    aspect-ratio: 1 / 1;
    min-height: 0;
    margin-bottom: 0;
  }

  .initiative > :not(.initiative-art) {
    grid-column: 2;
  }

  .initiative .btn,
  .initiative .soon {
    justify-self: start;
  }
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.1rem 0 1.6rem;
}

.tags li {
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--light);
  color: var(--primary);
  font-size: 0.8125rem;
  font-weight: 600;
}

.soon {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
  padding: 0.55rem 1.1rem;
  border: 1px dashed #94a3b8;
  border-radius: var(--radius-sm);
  background: var(--light);
  color: var(--primary);
  font-size: 0.9375rem;
  font-weight: 600;
}

.soon::before {
  content: "";
  flex: none;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--secondary);
}

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

.cta {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(40rem 18rem at 50% 0%, rgba(59, 130, 246, 0.35), transparent 70%),
    linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #dbeafe;
  text-align: center;
}

.cta h2 {
  color: #fff;
  font-size: clamp(2rem, 1.3rem + 2.6vw, 2.75rem);
}

.cta-text {
  max-width: 40rem;
  margin: 0 auto 2rem;
  font-size: 1.125rem;
}

.contact-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 2rem;
  margin-top: 2.5rem;
}

.contact-list a {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 2.75rem;
  border-bottom: 1px solid transparent;
  color: #dbeafe;
  text-decoration: none;
  transition: color 0.2s, border-color 0.2s;
}

.contact-list a:hover {
  border-bottom-color: currentColor;
  color: #fff;
}

/* ---------- Página 404 ---------- */

.hero-compact {
  justify-content: center;
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100svh - var(--header-h));
  padding-block: 4rem;
  text-align: center;
}

.hero-compact .hero-copy,
.hero-compact .lead {
  margin-inline: auto;
}

.hero-compact .actions {
  justify-content: center;
}

.code404 {
  margin: 0 0 0.5rem;
  color: #60a5fa;
  font-size: clamp(4.5rem, 16vw, 8rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
}

/* ---------- Rodapé ---------- */

.site-footer {
  padding-block: 3.25rem 1.75rem;
  background: #020617;
  color: #94a3b8;
  font-size: 0.9375rem;
}

.site-footer a {
  color: #cbd5e1;
  text-decoration: none;
}

.site-footer a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-grid {
  display: grid;
  gap: 2rem;
}

/* Mesmo logotipo do cabeçalho (classe .brand), em versão para fundo escuro */
.footer-brand {
  margin: 0 0 1rem;
  border-left-color: #60a5fa;
  color: #fff;
}

.footer-brand .brand-sub {
  color: #93c5fd;
}

.footer-desc {
  max-width: 24rem;
}

.footer-title {
  margin: 0 0 0.9rem;
  color: #fff;
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-list {
  display: grid;
  gap: 0.35rem;
}

.footer-list a {
  display: inline-block;
  padding-block: 0.2rem;
}

.footer-bottom {
  margin-top: 2.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid #1e293b;
  font-size: 0.875rem;
}

.footer-bottom p {
  margin: 0;
}

@media (min-width: 760px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 3rem;
  }
}