:root {
  --black: #0a0a0a;
  --black-soft: #141414;
  --white: #ffffff;
  --gold: #f7b500;
  --gold-dark: #d69c00;
  --gray: #8a8a8a;
  --max-width: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--white);
  color: var(--black);
  line-height: 1.6;
  overflow-x: hidden;
}

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--black);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.logo { display: block; height: 48px; }
.logo__img { height: 48px; width: auto; display: block; }

.nav {
  display: flex;
  gap: 32px;
  flex: 1;
  justify-content: center;
}

.nav a {
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  opacity: 0.85;
  transition: opacity 0.2s, color 0.2s;
}

.nav a:hover { opacity: 1; color: var(--gold); }

.btn--nav { padding: 10px 18px; font-size: 0.9rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: 2px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}

.btn .icon { width: 20px; height: 20px; fill: currentColor; }

.btn--whatsapp {
  background: var(--gold);
  color: var(--black);
}

.btn--whatsapp:hover {
  background: var(--gold-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(247,181,0,0.3);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.3);
}

.btn--outline:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}

/* on light sections, outline btn should be dark */
.section:not(.section--dark):not(.section--cta) .btn--outline {
  color: var(--black);
  border-color: rgba(0,0,0,0.2);
}

.section:not(.section--dark):not(.section--cta) .btn--outline:hover {
  border-color: var(--gold-dark);
  color: var(--gold-dark);
}

/* Hero */
.hero {
  background: radial-gradient(circle at 20% 20%, #1a1a1a 0%, #000 60%);
  color: var(--white);
  padding: 110px 0 100px;
}

.hero__inner { max-width: 760px; }

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 22px;
}

.accent { color: var(--gold); }

.hero__lead {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 36px;
  max-width: 560px;
}

.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }

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

.section--dark {
  background: var(--black);
  color: var(--white);
}

.section--cta {
  background: linear-gradient(135deg, #111 0%, #000 100%);
  color: var(--white);
  text-align: center;
}

.cta__inner { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.cta__inner .hero__actions { justify-content: center; margin-top: 20px; }

.tag {
  display: inline-block;
  color: var(--gold-dark);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section--dark .tag,
.section--cta .tag { color: var(--gold); }

.section h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 18px;
}

.section__lead {
  font-size: 1.05rem;
  max-width: 680px;
  color: #444;
}

.section--dark .section__lead,
.section--cta .section__lead { color: rgba(255,255,255,0.72); }

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 44px;
}

.card {
  background: var(--black-soft);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 28px 22px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--gold);
}

.card__icon {
  font-size: 1.8rem;
  margin-bottom: 14px;
}

.card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.card p {
  font-size: 0.92rem;
  color: rgba(255,255,255,0.65);
}

/* Footer */
.footer {
  background: var(--black);
  color: rgba(255,255,255,0.6);
  padding: 26px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
}

.footer__social { display: flex; gap: 20px; }

.footer__social a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-weight: 600;
}

.footer__social a:hover { color: var(--gold); }

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

@media (max-width: 720px) {
  .nav { display: none; }
  .header__inner { justify-content: space-between; }
}

@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr; }
  .hero { padding: 80px 0 70px; }
  .section { padding: 64px 0; }
  .btn--nav span { display: none; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .btn { justify-content: center; }
}