/* ============================================================
   SINUHUB — Design System & Styles
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700&display=swap');

/* ============================================================
   CSS VARIABLES — Design Tokens
   ============================================================ */
:root {
  /* Colors */
  --green-primary:   #00966A;
  --green-accent:    #00C98D;
  --green-light:     #E8F8F2;
  --green-ultra:     #F0FAF6;
  --green-dark:      #007A55;
  --green-deep:      #005C40;
  --dark:            #0D1F1A;
  --dark-2:          #1A2E28;
  --dark-3:          #263D36;
  --text-mid:        #3D5A52;
  --text-soft:       #6B8A82;
  --text-lighter:    #A0B8B2;
  --white:           #FFFFFF;
  --off-white:       #F8FFFE;
  --border-light:    rgba(0, 150, 106, 0.15);
  --border-mid:      rgba(0, 150, 106, 0.3);

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(13,31,26,0.08), 0 1px 2px rgba(13,31,26,0.06);
  --shadow-md:  0 4px 16px rgba(13,31,26,0.10), 0 2px 6px rgba(13,31,26,0.06);
  --shadow-lg:  0 20px 60px rgba(13,31,26,0.12), 0 8px 24px rgba(13,31,26,0.08);
  --shadow-xl:  0 40px 80px rgba(13,31,26,0.16), 0 16px 40px rgba(13,31,26,0.10);
  --shadow-green: 0 8px 32px rgba(0,150,106,0.25);
  --shadow-green-lg: 0 16px 48px rgba(0,150,106,0.35);

  /* Typography */
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body:    'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --section-py:  100px;
  --container-max: 1280px;
  --container-px: clamp(20px, 5vw, 80px);

  /* Borders */
  --radius-sm:   8px;
  --radius-md:   16px;
  --radius-lg:   24px;
  --radius-xl:   32px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base:   300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--white);
  color: var(--dark-2);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-base);
}

ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, select { font-family: inherit; }

/* ============================================================
   TYPOGRAPHY UTILITIES
   ============================================================ */
.gradient-text {
  background: linear-gradient(135deg, var(--green-primary), var(--green-accent), #00E5A0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--green-primary), var(--green-dark));
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  box-shadow: var(--shadow-green);
  transition: all var(--transition-spring);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--green-accent), var(--green-primary));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-green-lg);
}

.btn-primary:hover::before { opacity: 1; }
.btn-primary span, .btn-primary > * { position: relative; z-index: 1; }
.btn-primary.full-width { width: 100%; justify-content: center; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: transparent;
  color: var(--dark-2);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-full);
  border: 2px solid var(--border-mid);
  transition: all var(--transition-spring);
}

.btn-secondary:hover {
  background: var(--green-ultra);
  border-color: var(--green-primary);
  color: var(--green-primary);
  transform: translateY(-2px);
}

.btn-outline-green {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: transparent;
  color: var(--green-accent);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 2px solid rgba(0, 201, 141, 0.4);
  transition: all var(--transition-spring);
}

.btn-outline-green:hover {
  background: rgba(0, 201, 141, 0.1);
  border-color: var(--green-accent);
  transform: translateY(-2px);
}

/* ============================================================
   SECTION UTILITIES
   ============================================================ */
.section-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--section-py) var(--container-px);
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  padding: 6px 18px;
  background: var(--green-ultra);
  color: var(--green-primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
  margin-bottom: 20px;
}

.section-tag.light {
  background: rgba(255,255,255,0.1);
  color: var(--green-accent);
  border-color: rgba(0,201,141,0.3);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--dark);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

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

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-mid);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-subtitle.light { color: rgba(255,255,255,0.75); }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  padding: 12px 0;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border-light);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-logo {
  flex-shrink: 0;
  position: relative;
}

.nav-logo img {
  height: 44px;
  width: auto;
  transition: opacity var(--transition-base);
}

/* On hero (dark bg): show the dark-bg logo (light text) */
.logo-light { opacity: 1; position: relative; }
/* White-bg logo hidden by default (only on scrolled white navbar) */
.logo-dark  { opacity: 0; position: absolute; top: 0; left: 0; }

/* When navbar turns white on scroll: swap logos */
.navbar.scrolled .logo-light { opacity: 0; }
.navbar.scrolled .logo-dark  { opacity: 1; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.nav-link {
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.navbar.scrolled .nav-link {
  color: var(--text-mid);
}

.nav-link:hover {
  color: var(--white);
  background: rgba(255,255,255,0.12);
}

.navbar.scrolled .nav-link:hover {
  color: var(--green-primary);
  background: var(--green-ultra);
}

.nav-admin {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.6;
}

.nav-cta {
  padding: 10px 24px;
  background: var(--white);
  color: var(--dark);
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  border: none;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
  transition: all var(--transition-spring);
  white-space: nowrap;
}

.navbar.scrolled .nav-cta {
  background: linear-gradient(135deg, var(--green-primary), var(--green-dark));
  color: var(--white);
  box-shadow: var(--shadow-green);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  margin-left: auto;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.navbar.scrolled .hamburger span { background: var(--dark); }

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--dark) 0%, var(--dark-2) 40%, var(--green-deep) 100%);
  overflow: hidden;
}

#particleCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 860px;
  padding: 120px var(--container-px) 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(0, 201, 141, 0.12);
  border: 1px solid rgba(0, 201, 141, 0.3);
  color: var(--green-accent);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  border-radius: var(--radius-full);
  margin-bottom: 32px;
  backdrop-filter: blur(12px);
  animation: fadeInDown 0.8s ease both;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--white);
  margin-bottom: 28px;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255,255,255,0.65);
  max-width: 580px;
  margin: 0 auto 48px;
  line-height: 1.7;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-actions .btn-primary {
  font-size: 1rem;
  padding: 16px 36px;
}

.hero-actions .btn-secondary {
  font-size: 1rem;
  padding: 16px 36px;
  color: rgba(255,255,255,0.85);
  border-color: rgba(255,255,255,0.2);
}

.hero-actions .btn-secondary:hover {
  background: rgba(255,255,255,0.08);
  color: var(--white);
  border-color: rgba(255,255,255,0.4);
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
  padding: 24px 48px;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 40px;
}

.stat-num {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--white);
  line-height: 1;
  background: linear-gradient(135deg, var(--white), var(--green-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.04em;
  margin-top: 6px;
}

.stat-divider {
  width: 1px;
  height: 50px;
  background: rgba(255,255,255,0.1);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: fadeInUp 1s ease 0.8s both;
}

.scroll-dot {
  width: 28px;
  height: 44px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-full);
  position: relative;
}

.scroll-dot::before {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--green-accent);
  border-radius: var(--radius-full);
  animation: scrollBounce 2s ease infinite;
}

/* ============================================================
   PRODUCTS SECTION
   ============================================================ */
.products-section {
  background: var(--white);
  position: relative;
}

.products-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green-primary), transparent);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

/* Product Card */
.product-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-spring);
  box-shadow: var(--shadow-sm);
  position: relative;
  transform: translateY(0);
}

.product-card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-mid);
}

.product-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  border: 2px solid transparent;
  background: linear-gradient(135deg, var(--green-primary), var(--green-accent)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.product-card:hover::after { opacity: 1; }

/* Product Image Area */
.product-image-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--green-ultra);
}

.product-image-wrap img.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-img { transform: scale(1.05); }

.product-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: linear-gradient(135deg, var(--placeholder-bg, #E8F8F2), var(--placeholder-bg2, #F0FAF6));
  transition: all var(--transition-base);
}

.product-card:hover .product-image-placeholder {
  filter: brightness(1.05);
}

.placeholder-icon {
  font-size: 3.5rem;
  line-height: 1;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.15));
  transition: transform var(--transition-spring);
}

.product-card:hover .placeholder-icon { transform: scale(1.1) rotate(-3deg); }

.placeholder-badge {
  padding: 5px 14px;
  background: rgba(255,255,255,0.6);
  border: 1px solid rgba(255,255,255,0.8);
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
}

.placeholder-label {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.7);
  font-weight: 500;
}

/* Product Card Body */
.product-card-body {
  padding: 24px;
}

.product-category-tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.product-name {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.product-tagline {
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 12px;
  opacity: 0.9;
}

.product-desc {
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.65;
  margin-bottom: 20px;
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

.product-see-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--green-primary);
  transition: gap var(--transition-spring);
}

.product-card:hover .product-see-more { gap: 10px; }

.product-arrow {
  width: 28px;
  height: 28px;
  background: var(--green-ultra);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  transition: all var(--transition-spring);
  color: var(--green-primary);
}

.product-card:hover .product-arrow {
  background: var(--green-primary);
  color: var(--white);
  transform: translateX(4px);
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about-section {
  background: var(--off-white);
  position: relative;
  overflow: hidden;
}

.about-section::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,201,141,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-content .section-tag { display: inline-block; }
.about-content .section-title { text-align: left; }

.about-text {
  font-size: 1.05rem;
  color: var(--text-mid);
  line-height: 1.75;
  margin-bottom: 40px;
}

.about-values {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.value-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.value-item:hover {
  border-color: var(--border-mid);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.value-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--green-ultra);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.value-item h4 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

.value-item p {
  font-size: 0.85rem;
  color: var(--text-mid);
}

/* About Metrics */
.about-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.metric-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.metric-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.metric-card.accent {
  background: linear-gradient(135deg, var(--dark), var(--dark-2));
  border-color: transparent;
}

.metric-num {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 900;
  color: var(--green-primary);
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 10px;
}

.metric-card.accent .metric-num {
  background: linear-gradient(135deg, var(--green-accent), #00FFAD);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.metric-label {
  font-size: 0.82rem;
  color: var(--text-soft);
  font-weight: 500;
  line-height: 1.4;
}

.metric-card.accent .metric-label { color: rgba(255,255,255,0.55); }

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-section {
  background: linear-gradient(160deg, var(--dark) 0%, var(--dark-2) 50%, var(--green-deep) 100%);
  position: relative;
  overflow: hidden;
}

.contact-section::before {
  content: '';
  position: absolute;
  top: -300px;
  left: -300px;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(0,201,141,0.08) 0%, transparent 60%);
  pointer-events: none;
}

/* 3 tarjetas en fila centrada */
.contact-cards-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.contact-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  backdrop-filter: blur(16px);
  transition: all var(--transition-base);
  text-align: center;
}

.contact-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(0,201,141,0.35);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.contact-icon {
  font-size: 2.4rem;
  margin-bottom: 16px;
  display: block;
}

.contact-card h4 {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.contact-card p {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
}

.contact-link {
  font-size: 0.85rem;
  color: var(--green-accent);
  font-weight: 600;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.contact-link:hover { gap: 8px; opacity: 0.85; }

/* CTA WhatsApp bloque inferior */
.contact-cta-block {
  text-align: center;
  padding: 48px 24px 16px;
}

.contact-cta-text {
  font-size: 1rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 24px;
  font-weight: 400;
}

.contact-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 18px 48px;
  background: #25D366;
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  border-radius: 60px;
  transition: all var(--transition-base);
  box-shadow: 0 8px 32px rgba(37,211,102,0.35);
  letter-spacing: -0.01em;
}

.contact-cta-btn:hover {
  background: #1ebe5a;
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 16px 48px rgba(37,211,102,0.45);
  color: var(--white);
}

.contact-cta-btn svg {
  flex-shrink: 0;
  filter: drop-shadow(0 0 4px rgba(255,255,255,0.3));
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--dark);
  padding-top: 64px;
}

.footer-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px) 48px;
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 80px;
}

.footer-brand p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.7;
  margin-top: 20px;
  max-width: 280px;
}

.footer-logo { height: 48px; width: auto; }

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-col h5 {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 20px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition-base);
}

.footer-col a:hover { color: var(--green-accent); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 24px var(--container-px);
  max-width: var(--container-max);
  margin: 0 auto;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.3);
  text-align: center;
}

.footer-bottom a {
  color: rgba(0,201,141,0.5);
  transition: color var(--transition-base);
}

.footer-bottom a:hover { color: var(--green-accent); }

/* ============================================================
   PRODUCT MODAL
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13,31,26,0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--white);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 860px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-xl);
  transform: translateY(40px) scale(0.97);
  transition: transform var(--transition-spring);
  scrollbar-width: thin;
  scrollbar-color: var(--border-mid) transparent;
}

.modal-overlay.active .modal {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  background: rgba(0,0,0,0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--text-mid);
  z-index: 10;
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
}

.modal-close:hover {
  background: rgba(0,0,0,0.15);
  color: var(--dark);
  transform: rotate(90deg);
}

/* Modal Content */
.modal-hero-image {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.modal-hero-placeholder {
  width: 100%;
  aspect-ratio: 21 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  font-size: 5rem;
  position: relative;
  overflow: hidden;
}

.modal-hero-placeholder::after {
  content: 'Imagen próximamente';
  position: absolute;
  bottom: 16px;
  right: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(255,255,255,0.5);
  font-family: var(--font-body);
  letter-spacing: 0.06em;
}

.modal-body {
  padding: 40px 48px 48px;
}

.modal-tag {
  display: inline-block;
  padding: 4px 14px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--dark);
  letter-spacing: -0.03em;
  margin-bottom: 8px;
  line-height: 1.1;
}

.modal-tagline {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.modal-description {
  font-size: 1rem;
  color: var(--text-mid);
  line-height: 1.75;
  margin-bottom: 36px;
}

.modal-features-title {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin-bottom: 20px;
}

.modal-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 40px;
}

.modal-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  background: var(--off-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--dark-2);
  line-height: 1.5;
}

.feature-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  color: white;
  flex-shrink: 0;
  margin-top: 1px;
}

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

/* ============================================================
   WHATSAPP FLOAT
   ============================================================ */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #25D366, #128C7E);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45);
  z-index: 1500;
  transition: all var(--transition-spring);
}

.whatsapp-float svg {
  width: 30px;
  height: 30px;
}

.whatsapp-float:hover {
  transform: scale(1.12) translateY(-4px);
  box-shadow: 0 12px 40px rgba(37, 211, 102, 0.55);
}

.whatsapp-float::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(37, 211, 102, 0.35);
  animation: waPulse 2.5s ease-in-out infinite;
}

.whatsapp-tooltip {
  position: absolute;
  right: calc(100% + 14px);
  background: var(--dark);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateX(8px);
  transition: all var(--transition-base);
}

.whatsapp-tooltip::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 100%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-left-color: var(--dark);
}

.whatsapp-float:hover .whatsapp-tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* ============================================================
   TOAST NOTIFICATION
   ============================================================ */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--dark);
  color: var(--white);
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-base);
  z-index: 3000;
  border-left: 3px solid var(--green-accent);
  white-space: nowrap;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ============================================================
   SCROLL ANIMATIONS — Intersection Observer
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================================
   KEYFRAME ANIMATIONS
   ============================================================ */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  50%       { transform: translateX(-50%) translateY(14px); opacity: 0.3; }
}

@keyframes waPulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50%       { transform: scale(1.3); opacity: 0; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ============================================================
   RESPONSIVE — Tablet (768px)
   ============================================================ */
@media (max-width: 1024px) {
  :root { --section-py: 80px; }

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

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-content .section-title { font-size: 2rem; }

  .contact-cards-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .contact-cta-btn {
    padding: 16px 32px;
    font-size: 0.95rem;
  }

  .footer-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

@media (max-width: 768px) {
  :root { --section-py: 64px; }

  /* Navbar */
  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(13,31,26,0.97);
    backdrop-filter: blur(24px);
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 999;
    padding: 80px 40px;
  }

  .nav-links.open { transform: translateX(0); }

  .nav-link {
    font-size: 1.4rem;
    font-weight: 700;
    color: rgba(255,255,255,0.85) !important;
    padding: 16px 20px;
    border-radius: var(--radius-md);
  }

  .nav-link:hover {
    color: var(--green-accent) !important;
    background: rgba(0,201,141,0.1) !important;
  }

  .hamburger { display: flex; z-index: 1000; }
  .nav-cta { display: none; }

  /* Hero */
  .hero-stats {
    flex-direction: column;
    padding: 24px;
    gap: 16px;
  }

  .stat { padding: 0; }
  .stat-divider { width: 80px; height: 1px; }

  /* Products */
  .products-grid { grid-template-columns: 1fr; gap: 20px; }

  /* About metrics */
  .about-metrics { grid-template-columns: 1fr 1fr; }

  /* Footer */
  .footer-links { grid-template-columns: 1fr 1fr; }

  /* Modal */
  .modal-body { padding: 28px 24px 32px; }
  .modal-title { font-size: 1.7rem; }
  .modal-features { grid-template-columns: 1fr; }

  /* Contact cards responsive */
  .contact-card { padding: 28px 20px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2.4rem; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary { width: 100%; justify-content: center; }

  .footer-links { grid-template-columns: 1fr; gap: 32px; }
  .about-metrics { grid-template-columns: 1fr; }

  .modal { border-radius: var(--radius-lg); }
  .modal-hero-placeholder { aspect-ratio: 16/9; }
}