:root {
  --bg: #0a0e14;
  --bg-alt: #0d1420;
  --surface: #121a28;
  --border: #1e2a3c;
  --text: #e6edf3;
  --text-muted: #94a3b8;
  --accent: #00d9a3;
  --accent-2: #38bdf8;
  --radius: 12px;
  --max-width: 1120px;
}

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

html { scroll-behavior: smooth; }

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

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

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

h1, h2, h3 { line-height: 1.2; font-weight: 700; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 14, 20, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--accent);
}

.logo-sm { font-size: 1rem; }

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav a:hover { color: var(--text); }

.nav-cta {
  background: var(--accent);
  color: #06110d !important;
  padding: 8px 18px;
  border-radius: 8px;
  font-weight: 600 !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  display: block;
}

/* Hero */
.hero {
  padding: 110px 0 90px;
  background:
    radial-gradient(60% 50% at 50% 0%, rgba(0, 217, 163, 0.12) 0%, rgba(0, 217, 163, 0) 100%),
    var(--bg);
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.hero-inner { max-width: 780px; }

.eyebrow {
  display: inline-block;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}

.hero-sub {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 620px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--accent);
  color: #06110d;
}

.btn-primary:hover { opacity: 0.9; }

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

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

/* Sections */
.section {
  padding: 90px 0;
}

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

.section-tag {
  display: inline-block;
  color: var(--accent-2);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.3rem);
  margin-bottom: 20px;
  max-width: 680px;
}

.section-lead {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 720px;
  margin-bottom: 18px;
}

/* Cards grid */
.grid {
  display: grid;
  gap: 24px;
  margin-top: 44px;
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

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

.card-icon {
  font-size: 1.6rem;
  margin-bottom: 14px;
}

.card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.card p {
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* Sobre */
.sobre-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 50px;
  align-items: start;
}

.checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.checklist li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 18px;
  font-size: 0.95rem;
}

.checklist li::before {
  content: "✓ ";
  color: var(--accent);
  font-weight: 700;
  margin-right: 6px;
}

/* Contato */
.contato-inner {
  text-align: center;
}

.contato-inner .section-lead {
  margin-left: auto;
  margin-right: auto;
}

.contato-card {
  margin-top: 36px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  align-items: center;
  gap: 20px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
  flex-wrap: wrap;
}

.contato-icon {
  font-size: 1.8rem;
  background: rgba(0, 217, 163, 0.1);
  border-radius: 50%;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contato-label {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 2px;
}

.contato-value {
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--accent-2);
}

.contato-card .btn {
  margin-left: auto;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-inner p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 860px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .sobre-inner { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 18px;
    display: none;
  }
  .nav.open { display: flex; }
  .nav-toggle { display: flex; }
  .grid-4 { grid-template-columns: 1fr; }
  .contato-card { flex-direction: column; text-align: center; }
  .contato-card .btn { margin-left: 0; }
}