/* =============================================
   CHRIS DO DIGITAL — Stylesheet
   Colors: #161616 | #7d4a29 | #ede2d1 | #ffffff
   ============================================= */

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

:root {
  --dark:    #161616;
  --brown:   #7d4a29;
  --beige:   #ede2d1;
  --white:   #ffffff;
  --brown-light: #9a6040;
  --serif: 'Playfair Display', Georgia, serif;
  --sans:  'Inter', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-size: 16px;
  color: var(--dark);
  background: var(--dark);
  line-height: 1.6;
}

/* ---- UTIL ---- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-tag {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #888;
  margin-bottom: 18px;
}

.section-tag.accent { color: var(--brown); }

.section-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 40px;
}

.section-title.dark  { color: var(--dark); }
.section-title.light { color: var(--white); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 12px 22px;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s;
}

.btn-primary {
  background: var(--brown);
  color: var(--white);
  border: none;
}

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

.btn-large {
  font-size: 14px;
  padding: 16px 32px;
}

/* ---- TOP BANNER ---- */
.top-banner {
  background: var(--brown);
  color: var(--white);
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 10px 16px;
}

/* ---- HEADER ---- */
.header {
  background: var(--dark);
  border-bottom: 1px solid #2a2a2a;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo img {
  height: 40px;
  width: auto;
  display: block;
}

/* ---- HERO ---- */
.hero {
  background: var(--dark);
  padding: 80px 0 90px;
}

.hero-title {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 16px;
  margin-top: 16px;
}

.hero-subtitle {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 400;
  font-style: italic;
  color: var(--brown);
  margin-bottom: 28px;
}

.hero-desc {
  color: #b0a89a;
  font-size: 17px;
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-top: 32px;
}

.hero-badges span {
  font-size: 12px;
  color: #666;
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-badges span::before {
  content: '·';
  color: var(--brown);
  font-size: 18px;
  line-height: 1;
}

/* ---- PROBLEMA ---- */
.problem {
  background: var(--beige);
  padding: 90px 0;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.problem-card {
  background: var(--white);
  border: 1px solid #ddd4c4;
  border-radius: 6px;
  padding: 28px 24px;
  font-size: 15px;
  color: #333;
  line-height: 1.6;
}

.problem-text {
  font-size: 15px;
  color: #555;
  line-height: 1.8;
  max-width: 780px;
}

/* ---- SOBRE ---- */
.about {
  background: var(--dark);
  padding: 90px 0;
}

.about-inner {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 72px;
  align-items: start;
}

.about-photo {
  position: relative;
}

.about-photo img {
  width: 100%;
  height: 460px;
  object-fit: cover;
  object-position: top center;
  border-radius: 4px;
  display: block;
  background: #2a2a2a;
}

.about-photo-caption {
  text-align: center;
  margin-top: 16px;
}

.about-photo-caption strong {
  display: block;
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
}

.about-photo-caption span {
  font-size: 11px;
  letter-spacing: 0.15em;
  color: #888;
  text-transform: uppercase;
}

.about-content .section-title { margin-bottom: 24px; }

.about-desc {
  color: #b0a89a;
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-desc strong { color: var(--white); }

.credentials {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.credential-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: #1e1e1e;
  border: 1px solid #2a2a2a;
  border-radius: 4px;
  padding: 18px 20px;
}

.credential-num {
  font-size: 11px;
  font-weight: 700;
  color: var(--brown);
  letter-spacing: 0.1em;
  min-width: 24px;
  padding-top: 2px;
}

.credential-item strong {
  display: block;
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
}

.credential-item p {
  font-size: 13px;
  color: #888;
  line-height: 1.5;
}

/* ---- COMO FUNCIONA ---- */
.steps {
  background: #0e0e0e;
  padding: 90px 0;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 40px;
  padding: 40px 0;
  border-bottom: 1px solid #222;
}

.step:last-child { border-bottom: none; }

.step-num {
  font-family: var(--serif);
  font-size: 72px;
  font-weight: 700;
  color: #2a2a2a;
  line-height: 1;
  min-width: 80px;
  text-align: center;
}

.step-content h3 {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--white);
  font-weight: 600;
  margin-bottom: 12px;
}

.step-content p {
  color: #888;
  font-size: 15px;
  line-height: 1.75;
  max-width: 640px;
}

/* ---- ÁREAS ---- */
.areas {
  background: var(--dark);
  padding: 90px 0;
  border-top: 1px solid #1e1e1e;
}

.areas-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.area-card {
  background: #1a1a1a;
  border: 1px solid #2a2a2a;
  border-radius: 6px;
  padding: 32px 24px;
  transition: border-color 0.2s;
}

.area-card:hover { border-color: var(--brown); }

.area-icon {
  font-size: 28px;
  margin-bottom: 16px;
}

.area-card h3 {
  font-family: var(--serif);
  font-size: 17px;
  color: var(--white);
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.3;
}

.area-card p {
  font-size: 13px;
  color: #777;
  line-height: 1.65;
}

/* ---- CTA FINAL ---- */
.cta-final {
  background: var(--dark);
  padding: 100px 0;
  text-align: center;
  border-top: 1px solid #1e1e1e;
}

.cta-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  color: var(--white);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}

.cta-title em {
  color: var(--brown);
  font-style: italic;
}

.cta-desc {
  color: #888;
  font-size: 14px;
  margin-bottom: 40px;
}

/* ---- FOOTER ---- */
.footer {
  background: #0a0a0a;
  border-top: 1px solid #1e1e1e;
  padding: 48px 0 0;
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  padding-bottom: 40px;
}

.footer-logo img {
  height: 36px;
  width: auto;
  display: block;
  opacity: 0.85;
}

.footer-info p {
  font-size: 13px;
  color: #666;
  line-height: 1.8;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-links a {
  font-size: 12px;
  color: #555;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--brown); }

.footer-bottom {
  border-top: 1px solid #1e1e1e;
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 11px;
  color: #444;
  letter-spacing: 0.04em;
}

/* ---- RESPONSIVO ---- */
@media (max-width: 900px) {
  .about-inner {
    grid-template-columns: 1fr;
  }

  .about-photo img {
    height: 360px;
  }

  .areas-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .hero { padding: 48px 0 56px; }

  .problem,
  .about,
  .steps,
  .areas { padding: 60px 0; }

  .cta-final { padding: 64px 0; }

  .btn-large {
    width: 100%;
    justify-content: center;
    text-align: center;
    padding: 16px 20px;
  }

  .problem-grid {
    grid-template-columns: 1fr;
  }

  .areas-grid {
    grid-template-columns: 1fr;
  }

  .step {
    flex-direction: column;
    gap: 12px;
  }

  .step-num {
    font-size: 48px;
    min-width: auto;
  }

  .footer-inner {
    flex-direction: column;
    gap: 24px;
  }

  .header-inner {
    gap: 12px;
  }

  .logo img {
    height: 32px;
  }
}

/* ---- WHATSAPP FLUTUANTE ---- */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #25d366;
  color: #fff;
  text-decoration: none;
  padding: 14px 22px 14px 18px;
  border-radius: 50px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: transform 0.2s, box-shadow 0.2s;
}

.whatsapp-float:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(37, 211, 102, 0.55);
}

@media (max-width: 480px) {
  .whatsapp-float span {
    display: none;
  }

  .whatsapp-float {
    padding: 16px;
    border-radius: 50%;
    bottom: 20px;
    right: 20px;
  }
}