/* ─────────────────────────────────────────
   TOKENS
───────────────────────────────────────── */
:root {
  --bg:          #0a0a0a;
  --bg-raised:   #111111;
  --bg-card:     #141414;
  --border:      #222222;
  --text:        #f0ede8;
  --text-muted:  #888884;
  --accent:      #f5a623;
  --accent-dark: #c8841a;

  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans:  'Inter', system-ui, sans-serif;

  --max-w:        1100px;
  --max-w-narrow: 680px;

  --radius: 6px;
  --transition: 200ms ease;
}

/* ─────────────────────────────────────────
   RESET & BASE
───────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ─────────────────────────────────────────
   LAYOUT
───────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
}

.container-narrow {
  max-width: var(--max-w-narrow);
}

/* ─────────────────────────────────────────
   TYPOGRAPHY
───────────────────────────────────────── */
.eyebrow {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(2.6rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 1.75rem;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 560px;
  margin-bottom: 2.5rem;
  line-height: 1.75;
}

.section-heading {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 2rem;
}

.section-heading-center {
  text-align: center;
}

.body-copy {
  font-size: 1.0625rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.body-copy:last-child {
  margin-bottom: 0;
}

.closing-line {
  font-style: italic;
  color: var(--text);
  font-size: 1.125rem;
}

/* ─────────────────────────────────────────
   BUTTONS
───────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  border-radius: var(--radius);
  padding: 0.75rem 1.75rem;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent);
  color: #0a0a0a;
  border: 2px solid var(--accent);
}

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

.btn-outline {
  background-color: transparent;
  color: var(--text);
  border: 2px solid var(--border);
}

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

.btn-large {
  font-size: 1.0625rem;
  padding: 1rem 2.5rem;
}

/* ─────────────────────────────────────────
   NAV
───────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem clamp(1.25rem, 5vw, 3rem);
  background-color: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo-wrap {
  display: inline-flex;
  align-items: center;
  background: #ffffff;
  border-radius: 8px;
  padding: 5px 12px;
  text-decoration: none;
  transition: opacity var(--transition);
}

.nav-logo-wrap:hover {
  opacity: 0.88;
}

.nav-logo-img {
  height: 30px;
  width: auto;
  display: block;
}

/* ─────────────────────────────────────────
   HERO
───────────────────────────────────────── */
.hero {
  padding: clamp(5rem, 14vw, 10rem) 0 clamp(4rem, 10vw, 8rem);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.br-desktop {
  display: none;
}

@media (min-width: 640px) {
  .br-desktop {
    display: block;
  }
}

/* ─────────────────────────────────────────
   SECTIONS
───────────────────────────────────────── */
.section {
  padding: clamp(4rem, 10vw, 8rem) 0;
  border-bottom: 1px solid var(--border);
}

.section-problem {
  background-color: var(--bg);
}

.section-solution {
  background-color: var(--bg-raised);
}

.section-why {
  background-color: var(--bg);
}

/* ─────────────────────────────────────────
   CARDS
───────────────────────────────────────── */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
  margin-bottom: 3rem;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2rem;
  transition: border-color var(--transition), transform var(--transition);
}

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

.card-number {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1rem;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.card-body {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.guarantee {
  text-align: center;
  font-size: 1rem;
  font-style: italic;
  color: var(--text-muted);
  max-width: 520px;
  margin-inline: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

/* ─────────────────────────────────────────
   FINAL CTA
───────────────────────────────────────── */
.section-cta {
  background-color: var(--bg-raised);
  border-bottom: none;
  text-align: center;
  padding: clamp(5rem, 12vw, 9rem) 0;
}

.cta-headline {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.cta-sub {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: var(--text-muted);
  margin-bottom: 2.5rem;
}

/* ─────────────────────────────────────────
   FOOTER
───────────────────────────────────────── */
.footer {
  background-color: var(--bg);
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-link {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

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

.footer-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
}

.footer-whatsapp:hover {
  color: #25D366;
}

.wa-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

/* ─────────────────────────────────────────
   ANIMATIONS
───────────────────────────────────────── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-up {
  animation: fadeUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.22s; }
.delay-3 { animation-delay: 0.34s; }

/* ─────────────────────────────────────────
   RESPONSIVE
───────────────────────────────────────── */
@media (max-width: 480px) {
  .cards {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .btn-large {
    width: 100%;
  }
}