/* ============================================================
   Nexus Core Tecnologia — Design tokens
   Paleta ancorada na identidade já estabelecida do NexGrade
   (azul), estendida com os acentos reais dos outros dois
   programas: verde-água do Click (Reserva/Cantina) e âmbar
   industrial do Yardflow. Fundo em azul-marinho profundo, não
   preto puro nem bege — mantém a família azul da marca mas
   comunica "estúdio de tecnologia", não "produto SaaS".
   ============================================================ */

:root {
  /* Superfícies */
  --bg: #0a1929;
  --bg-elevated: #0f2540;
  --surface: #132f4c;
  --surface-hover: #1a3a5c;
  --border: #1e3a5f;

  /* Marca Nexus Core / NexGrade (mandatada pelo manual de marca) */
  --azul-escuro: #0d47a1;
  --azul: #1565c0;
  --azul-claro: #42a5f5;

  /* Acentos dos programas */
  --verde-click: #26a69a;
  --verde-click-claro: #4dd0c4;
  --ambar-yard: #ffb300;
  --ambar-yard-claro: #ffcc4d;

  /* Texto */
  --texto: #eceff1;
  --texto-muted: #90a4ae;
  --texto-tenue: #5f7a91;

  /* Tipografia */
  --f-display: "Montserrat", sans-serif;
  --f-body: "Inter", sans-serif;

  /* Espaçamento */
  --container: 1160px;
  --radius: 14px;
  --radius-sm: 8px;
}

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

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  background: var(--bg);
  color: var(--texto);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Textura de fundo sutil — evita chapado */
body {
  background-image:
    radial-gradient(circle at 15% 0%, rgba(21, 101, 192, 0.14), transparent 45%),
    radial-gradient(circle at 85% 15%, rgba(38, 166, 154, 0.08), transparent 40%);
  background-attachment: fixed;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }

p { color: var(--texto-muted); }

.eyebrow {
  font-family: var(--f-body);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--azul-claro);
}

/* Foco visível — acessibilidade */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--azul-claro);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ============================================================
   Header
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 25, 41, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--texto);
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--azul), var(--azul-escuro));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: 1rem;
  color: white;
  flex-shrink: 0;
}

.brand small {
  display: block;
  font-family: var(--f-body);
  font-weight: 500;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--texto-muted);
  margin-top: 1px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.main-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--texto-muted);
  transition: color 0.15s ease;
  white-space: nowrap;
}

.main-nav a:hover { color: var(--texto); }
.main-nav a.active { color: var(--azul-claro); }

.nav-cta {
  background: var(--azul);
  color: white !important;
  padding: 10px 20px;
  border-radius: 100px;
  font-weight: 600 !important;
}

.nav-cta:hover { background: var(--azul-claro); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--texto);
  font-size: 1.5rem;
  cursor: pointer;
}

@media (max-width: 860px) {
  .main-nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--bg-elevated);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0 20px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .main-nav a {
    padding: 14px 28px;
    border-bottom: 1px solid var(--border);
  }
  .nav-cta { margin: 14px 28px 0; text-align: center; }
  .nav-toggle { display: block; }
}

/* ============================================================
   Hero + status strip (elemento de assinatura)
   ============================================================ */

.hero {
  padding: 90px 0 60px;
}

.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  max-width: 780px;
}

.hero h1 .accent { color: var(--azul-claro); }

.hero-sub {
  max-width: 560px;
  font-size: 1.1rem;
  margin-top: 22px;
  color: var(--texto-muted);
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 34px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.15s ease;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary { background: var(--azul); color: white; }
.btn-primary:hover { background: var(--azul-claro); transform: translateY(-1px); }

.btn-ghost { border-color: var(--border); color: var(--texto); }
.btn-ghost:hover { border-color: var(--azul-claro); color: var(--azul-claro); }

/* Status strip — o "quadro de status" que é a assinatura visual do site:
   comunica sistemas rodando de verdade agora, não conceito/slideware. */
.status-strip {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.status-item {
  background: var(--bg-elevated);
  padding: 22px 24px;
  transition: background 0.2s ease;
}

.status-item:hover { background: var(--surface); }

.status-item-top {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 10px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
}

.status-dot::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid currentColor;
  opacity: 0.5;
  animation: pulse 2.4s ease-out infinite;
}

@keyframes pulse {
  0% { transform: scale(0.6); opacity: 0.6; }
  100% { transform: scale(1.8); opacity: 0; }
}

.status-dot.online { background: var(--verde-click); color: var(--verde-click); }
.status-dot.pilot { background: var(--ambar-yard); color: var(--ambar-yard); }

.status-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--texto-muted);
}

.status-item-name {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--texto);
}

.status-item-desc {
  font-size: 0.85rem;
  color: var(--texto-tenue);
  margin-top: 4px;
}

@media (max-width: 720px) {
  .status-strip { grid-template-columns: 1fr; }
}

/* ============================================================
   Seções gerais
   ============================================================ */

.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-head {
  max-width: 620px;
  margin-bottom: 48px;
}

.section-head .eyebrow { margin-bottom: 14px; display: block; }

.section-head p { margin-top: 16px; font-size: 1.05rem; }

/* ============================================================
   Cards de iniciativa (home)
   ============================================================ */

.initiative-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

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

.initiative-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease;
  border-top: 3px solid var(--card-accent, var(--azul));
}

.initiative-card:hover {
  transform: translateY(-3px);
  border-color: var(--card-accent, var(--azul));
}

.initiative-card .status-label { color: var(--card-accent, var(--azul)); margin-bottom: 14px; }

.initiative-card h3 { margin-bottom: 12px; }

.initiative-card p { font-size: 0.95rem; flex-grow: 1; }

.initiative-card .card-link {
  margin-top: 22px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--card-accent, var(--azul-claro));
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.card-nexgrade { --card-accent: var(--azul-claro); }
.card-programa { --card-accent: var(--verde-click-claro); }
.card-yardflow { --card-accent: var(--ambar-yard-claro); }

/* ============================================================
   Listas de features / grid 2 colunas
   ============================================================ */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

@media (max-width: 720px) {
  .feature-grid { grid-template-columns: 1fr; }
}

.feature-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px;
}

.feature-item h4 {
  font-size: 1rem;
  margin-bottom: 8px;
  color: var(--texto);
}

.feature-item p { font-size: 0.9rem; }

/* ============================================================
   Tag de status / pill
   ============================================================ */

.pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  border: 1px solid var(--border);
  color: var(--texto-muted);
}

.pill .status-dot { position: static; }
.pill .status-dot::after { content: none; }

/* ============================================================
   Stack técnica (tags)
   ============================================================ */

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.tech-tag {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 13px;
  border-radius: 100px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--texto-muted);
  font-family: "Inter", monospace;
}

/* ============================================================
   Página interna — hero secundário
   ============================================================ */

.page-hero {
  padding: 60px 0 50px;
  border-bottom: 1px solid var(--border);
}

.page-hero .eyebrow { margin-bottom: 16px; display: block; }

.page-hero h1 { font-size: clamp(2rem, 4.5vw, 3rem); max-width: 720px; }

.page-hero p { max-width: 600px; font-size: 1.05rem; margin-top: 18px; }

.breadcrumb {
  font-size: 0.85rem;
  color: var(--texto-tenue);
  margin-bottom: 24px;
}

.breadcrumb a { color: var(--texto-muted); }
.breadcrumb a:hover { color: var(--azul-claro); }

/* ============================================================
   Timeline / desafios superados (usado no Programa Educacional)
   ============================================================ */

.timeline {
  border-left: 2px solid var(--border);
  padding-left: 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.timeline-item h4 { color: var(--texto); font-size: 0.98rem; margin-bottom: 6px; }
.timeline-item p { font-size: 0.9rem; }

/* ============================================================
   Quote / bio block
   ============================================================ */

.bio-block {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  align-items: start;
}

@media (max-width: 700px) {
  .bio-block { grid-template-columns: 1fr; }
}

.bio-avatar {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius);
  background: linear-gradient(140deg, var(--azul-escuro), var(--verde-click));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: 3rem;
  color: white;
}

/* ============================================================
   CTA final
   ============================================================ */

.cta-band {
  background: linear-gradient(120deg, var(--azul-escuro), var(--azul));
  border-radius: var(--radius);
  padding: 56px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}

.cta-band h2 { color: white; font-size: clamp(1.4rem, 3vw, 2rem); max-width: 480px; }
.cta-band p { color: rgba(255,255,255,0.8); margin-top: 8px; }

.cta-band .btn-primary { background: white; color: var(--azul-escuro); }
.cta-band .btn-primary:hover { background: var(--texto); }

/* ============================================================
   Formulário de contato
   ============================================================ */

.form-grid {
  display: grid;
  gap: 18px;
  max-width: 560px;
}

.form-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--texto);
}

.form-field input, .form-field textarea, .form-field select {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 13px 15px;
  color: var(--texto);
  font-family: var(--f-body);
  font-size: 0.95rem;
}

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

.form-field input:focus, .form-field textarea:focus, .form-field select:focus {
  border-color: var(--azul-claro);
  outline: none;
}

/* ============================================================
   Footer
   ============================================================ */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 50px 0 34px;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 40px;
}

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

.footer-col h5 {
  font-family: var(--f-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--texto-muted);
  margin-bottom: 16px;
}

.footer-col a, .footer-col p {
  display: block;
  font-size: 0.88rem;
  color: var(--texto-tenue);
  margin-bottom: 10px;
}

.footer-col a:hover { color: var(--azul-claro); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--texto-tenue);
  flex-wrap: wrap;
  gap: 10px;
}

/* ============================================================
   Utilitários
   ============================================================ */

.mt-0 { margin-top: 0 !important; }
.text-center { text-align: center; margin-left: auto; margin-right: auto; }