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

:root {
  --white:      #FAF8F2;
  --slate-50:   #F2EDE3;
  --blue-600:   #4F9263;
  --blue-700:   #3D7A50;
  --gray-900:   #1C1917;
  --gray-500:   #78716C;
  --gray-200:   #DDD8CE;
  --emerald-600:#3A7D52;
  --blue-50:    #E8F3EC;
  --blue-text:  #4F9263;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.6;
}

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

.section { padding: 96px 0; }
.section--alt { background: var(--slate-50); }

.section-label {
  display: inline-block;
  background: var(--blue-50);
  color: var(--blue-text);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

h1 {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
}

p { color: var(--gray-500); line-height: 1.7; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 10px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.18s, color 0.18s, border-color 0.18s;
  border: 2px solid transparent;
}

.btn--primary {
  background: var(--blue-600);
  color: var(--white);
}
.btn--primary:hover { background: var(--blue-700); }

.btn--secondary {
  background: transparent;
  color: var(--blue-600);
  border-color: var(--blue-600);
}
.btn--secondary:hover {
  background: var(--blue-50);
}

.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 1px 4px rgba(0,0,0,.04);
}

.badge {
  display: inline-block;
  background: var(--blue-50);
  color: var(--blue-text);
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 999px;
}

.metric {
  font-size: 32px;
  font-weight: 700;
  color: var(--emerald-600);
  letter-spacing: -0.02em;
}

/* ── NAV ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,248,242,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
}

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

.nav-logo {
  font-size: 16px;
  font-weight: 700;
  color: var(--gray-900);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-500);
  text-decoration: none;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--gray-900); }

/* ── 1. HERO ── */
#hero {
  padding: 112px 0 96px;
  border-bottom: 1px solid var(--gray-200);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.hero-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--emerald-600);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-eyebrow span {
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-500);
}

.hero-title { margin-bottom: 20px; }

.hero-title .accent { color: var(--blue-600); }

.hero-sub {
  font-size: 18px;
  color: var(--gray-500);
  margin-bottom: 36px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-visual {
  border: 1px solid var(--gray-200);
  border-radius: 20px;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ── 2. PROBLEMA ── */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.problem-card {
  padding: 24px;
  border-radius: 14px;
  border: 1px solid var(--gray-200);
  background: var(--white);
}

.problem-icon {
  font-size: 24px;
  margin-bottom: 12px;
}

.problem-card h3 { margin-bottom: 8px; }

/* ── 3. SOLUCIÓN ── */
.solution-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  margin-bottom: 56px;
}

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

.pillar-number {
  font-size: 36px;
  font-weight: 700;
  color: var(--gray-200);
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

/* ── 4. CASOS DE ESTUDIO ── */
#casos { background: var(--slate-50); }

.cases-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 48px;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0,0,0,.04);
  transition: box-shadow 0.2s, transform 0.2s;
}

.case-card:hover {
  box-shadow: 0 8px 24px rgba(37,99,235,.08);
  transform: translateY(-2px);
}

.case-thumb {
  background: var(--slate-50);
  border-bottom: 1px solid var(--gray-200);
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-500);
  font-size: 13px;
}

.case-body { padding: 24px; }

.case-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.case-body h3 { margin-bottom: 8px; }
.case-body p { font-size: 14px; margin-bottom: 16px; }

.case-metrics {
  display: flex;
  gap: 24px;
  padding: 16px 0;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
  margin-bottom: 16px;
}

.case-metric-item .metric { font-size: 24px; }
.case-metric-item p {
  font-size: 12px;
  margin-top: 2px;
}

/* ── 5. PROCESO ── */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 56px;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 20px;
  left: calc(12.5% + 4px);
  right: calc(12.5% + 4px);
  height: 2px;
  background: var(--gray-200);
  z-index: 0;
}

.step { text-align: center; padding: 0 16px; position: relative; z-index: 1; }

.step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--blue-600);
  color: white;
  font-weight: 700;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.step h3 { font-size: 16px; margin-bottom: 8px; }
.step p { font-size: 14px; }

/* ── 6. TESTIMONIOS ── */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.testimonial-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 28px;
}

.stars {
  display: flex;
  gap: 2px;
  margin-bottom: 16px;
  color: #F59E0B;
  font-size: 14px;
}

.testimonial-card blockquote {
  font-size: 15px;
  color: var(--gray-900);
  line-height: 1.65;
  margin-bottom: 20px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--blue-50);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
  color: var(--blue-600);
  flex-shrink: 0;
}

.author-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-900);
}

.author-role {
  font-size: 13px;
  color: var(--gray-500);
}

/* ── 7. SOBRE MÍ ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  align-items: center;
}

.about-photo {
  background: var(--slate-50);
  border: 1px solid var(--gray-200);
  border-radius: 20px;
  aspect-ratio: 3/4;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-500);
  font-size: 14px;
}

.about-body h2 { margin-bottom: 16px; }
.about-body p { margin-bottom: 20px; }

.about-stats {
  display: flex;
  gap: 32px;
  margin: 28px 0;
  padding: 24px 0;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}

.stat-item .metric { font-size: 28px; }
.stat-item p { font-size: 13px; margin-top: 2px; }

.about-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ── 8. CTA FINAL ── */
#contacto {
  background: #1A1512;
  padding: 96px 0;
}

#contacto .section-label {
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.7);
}

#contacto h2 { color: var(--white); }
#contacto .cta-sub { color: rgba(255,255,255,0.6); max-width: 480px; margin: 16px 0 40px; }

.contact-box {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  padding: 40px;
  max-width: 560px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group { margin-bottom: 16px; }

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,0.6);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: var(--white);
  outline: none;
  transition: border-color 0.15s;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255,255,255,0.3);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--blue-600);
}

.form-group textarea { resize: vertical; min-height: 100px; }

.contact-alt {
  margin-top: 24px;
  font-size: 14px;
  color: rgba(255,255,255,0.4);
  text-align: center;
}

.contact-alt a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
}
.contact-alt a:hover { color: white; }

/* ── 9. FOOTER ── */
footer {
  background: #1A1512;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 40px 0;
}

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

.footer-logo {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  text-decoration: none;
}

.footer-tagline {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  margin-top: 4px;
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  text-decoration: none;
  transition: color 0.15s;
}
.footer-links a:hover { color: rgba(255,255,255,0.8); }

.footer-social {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  font-size: 14px;
  transition: border-color 0.15s, color 0.15s;
}
.social-link:hover {
  border-color: rgba(255,255,255,0.3);
  color: white;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .section { padding: 64px 0; }

  nav .btn { display: none; }

  .hero-grid,
  .solution-header,
  .about-grid { grid-template-columns: 1fr; gap: 40px; }

  .hero-visual { display: none; }

  .problem-grid,
  .pillar-grid,
  .cases-grid,
  .testimonials-grid { grid-template-columns: 1fr; }

  .steps { grid-template-columns: 1fr 1fr; gap: 32px; }
  .steps::before { display: none; }

  .cases-header { flex-direction: column; align-items: flex-start; gap: 16px; }

  .form-row { grid-template-columns: 1fr; }

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