/* ==========================================================================
   Grupo Saneri S. de R.L. — Main Stylesheet
   Version: 1.0.0 | gruposaneri.com
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Brand Colors */
  --color-primary:       #2B4A6F;   /* Dark navy blue */
  --color-primary-dark:  #1A2E45;   /* Deeper navy */
  --color-primary-light: #3D6491;   /* Lighter navy */
  --color-secondary:     #6B8CAE;   /* Grayish blue */
  --color-accent:        #8FA8C2;   /* Soft slate blue */

  /* Neutral Palette */
  --color-white:         #FFFFFF;
  --color-gray-50:       #F8F9FA;
  --color-gray-100:      #F1F3F5;
  --color-gray-200:      #E9ECEF;
  --color-gray-300:      #DEE2E6;
  --color-gray-400:      #CED4DA;
  --color-gray-500:      #ADB5BD;
  --color-gray-600:      #6C757D;
  --color-gray-700:      #495057;
  --color-gray-800:      #343A40;
  --color-gray-900:      #212529;

  /* Typography */
  --font-family:         'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-size-xs:        0.75rem;
  --font-size-sm:        0.875rem;
  --font-size-base:      1rem;
  --font-size-lg:        1.125rem;
  --font-size-xl:        1.25rem;
  --font-size-2xl:       1.5rem;
  --font-size-3xl:       1.875rem;
  --font-size-4xl:       2.25rem;
  --font-size-5xl:       3rem;
  --font-size-6xl:       3.75rem;

  /* Spacing */
  --spacing-xs:    0.25rem;
  --spacing-sm:    0.5rem;
  --spacing-md:    1rem;
  --spacing-lg:    1.5rem;
  --spacing-xl:    2rem;
  --spacing-2xl:   3rem;
  --spacing-3xl:   4rem;
  --spacing-4xl:   6rem;

  /* Layout */
  --container-max: 1200px;
  --nav-height:    72px;

  /* Borders & Radius */
  --radius-sm:     4px;
  --radius-md:     8px;
  --radius-lg:     16px;
  --radius-xl:     24px;
  --radius-full:   9999px;

  /* Shadows */
  --shadow-sm:     0 1px 3px rgba(43,74,111,0.08), 0 1px 2px rgba(43,74,111,0.06);
  --shadow-md:     0 4px 12px rgba(43,74,111,0.10), 0 2px 4px rgba(43,74,111,0.06);
  --shadow-lg:     0 10px 30px rgba(43,74,111,0.12), 0 4px 8px rgba(43,74,111,0.08);
  --shadow-xl:     0 20px 60px rgba(43,74,111,0.15), 0 8px 16px rgba(43,74,111,0.10);

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms ease;
}

/* --------------------------------------------------------------------------
   2. Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-gray-800);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* --------------------------------------------------------------------------
   3. Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary-dark);
  letter-spacing: -0.02em;
}

.text-xs   { font-size: var(--font-size-xs); }
.text-sm   { font-size: var(--font-size-sm); }
.text-lg   { font-size: var(--font-size-lg); }
.text-xl   { font-size: var(--font-size-xl); }
.text-2xl  { font-size: var(--font-size-2xl); }
.text-3xl  { font-size: var(--font-size-3xl); }
.text-4xl  { font-size: var(--font-size-4xl); }
.text-5xl  { font-size: var(--font-size-5xl); }

.font-normal  { font-weight: 400; }
.font-medium  { font-weight: 500; }
.font-semibold{ font-weight: 600; }
.font-bold    { font-weight: 700; }

.text-center { text-align: center; }
.text-white  { color: var(--color-white); }
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-muted  { color: var(--color-gray-600); }

/* Section labels */
.section-label {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-bottom: var(--spacing-sm);
}

/* --------------------------------------------------------------------------
   4. Layout
   -------------------------------------------------------------------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

.section {
  padding: var(--spacing-4xl) 0;
}

.section--gray {
  background-color: var(--color-gray-50);
}

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

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

.grid {
  display: grid;
  gap: var(--spacing-xl);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { display: flex; flex-direction: column; }
.gap-sm  { gap: var(--spacing-sm); }
.gap-md  { gap: var(--spacing-md); }
.gap-lg  { gap: var(--spacing-lg); }
.gap-xl  { gap: var(--spacing-xl); }

/* --------------------------------------------------------------------------
   5. Navigation
   -------------------------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-gray-200);
  transition: box-shadow var(--transition-base);
}

.nav.scrolled {
  box-shadow: var(--shadow-md);
}

.nav__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

.nav__logo img {
  height: 44px;
  width: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-700);
  transition: color var(--transition-fast);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--transition-base);
  transform-origin: left;
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-primary);
}

.nav__link:hover::after,
.nav__link.active::after {
  transform: scaleX(1);
}

.nav__cta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* Hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-sm);
  cursor: pointer;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.nav__toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0; right: 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  padding: var(--spacing-lg);
  flex-direction: column;
  gap: var(--spacing-md);
  z-index: 999;
  box-shadow: var(--shadow-lg);
}

.nav__mobile.open {
  display: flex;
}

.nav__mobile-link {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-gray-700);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-gray-100);
  transition: color var(--transition-fast);
}

.nav__mobile-link:last-child { border-bottom: none; }
.nav__mobile-link:hover { color: var(--color-primary); }

/* --------------------------------------------------------------------------
   6. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.01em;
  transition: all var(--transition-base);
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

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

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn--white {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}

.btn--white:hover {
  background: var(--color-gray-100);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--outline-white {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.6);
}

.btn--outline-white:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--color-white);
}

.btn--whatsapp {
  background: #25D366;
  color: var(--color-white);
  border-color: #25D366;
}

.btn--whatsapp:hover {
  background: #1EBE5A;
  border-color: #1EBE5A;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37,211,102,0.35);
}

.btn--lg {
  padding: 1rem 2.5rem;
  font-size: var(--font-size-base);
}

.btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: var(--font-size-xs);
}

/* --------------------------------------------------------------------------
   7. Hero Section
   -------------------------------------------------------------------------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, #3D6491 100%);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(107,140,174,0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(107,140,174,0.10) 0%, transparent 50%);
}

.hero__bg-shape {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 55%;
  height: 90%;
  opacity: 0.05;
}

.hero__bg-shape svg {
  width: 100%;
  height: 100%;
}

.hero__container {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--spacing-4xl) var(--spacing-xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4xl);
  align-items: center;
}

.hero__content {
  color: var(--color-white);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.9);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-xl);
}

.hero__badge span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #4ade80;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.8); }
}

.hero__title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-white);
  margin-bottom: var(--spacing-xl);
  letter-spacing: -0.03em;
}

.hero__title em {
  font-style: normal;
  color: var(--color-accent);
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: rgba(255,255,255,0.80);
  line-height: 1.7;
  margin-bottom: var(--spacing-2xl);
  max-width: 480px;
}

.hero__actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* Hero visual / right side */
.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__stats-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  max-width: 380px;
  width: 100%;
}

.hero__stat {
  text-align: center;
  padding: var(--spacing-lg);
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.1);
}

.hero__stat-number {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1;
  margin-bottom: var(--spacing-xs);
}

.hero__stat-label {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.7);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --------------------------------------------------------------------------
   8. Section Headers
   -------------------------------------------------------------------------- */
.section-header {
  margin-bottom: var(--spacing-3xl);
}

.section-header--center {
  text-align: center;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-bottom: var(--spacing-md);
}

.section-header p {
  color: var(--color-gray-600);
  font-size: var(--font-size-lg);
  line-height: 1.7;
}

.section-divider {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-full);
  margin: var(--spacing-md) 0;
}

.section-divider--center {
  margin-left: auto;
  margin-right: auto;
}

/* --------------------------------------------------------------------------
   9. Cards
   -------------------------------------------------------------------------- */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card__icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  font-size: 1.5rem;
  color: var(--color-white);
  flex-shrink: 0;
}

.card__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-sm);
}

.card__text {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
  line-height: 1.7;
}

/* Service cards */
.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.service-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
  border-color: var(--color-primary);
}

.service-card__header {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  padding: var(--spacing-2xl) var(--spacing-xl);
  position: relative;
  overflow: hidden;
}

.service-card__header::after {
  content: '';
  position: absolute;
  bottom: -20px; right: -20px;
  width: 100px; height: 100px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
}

.service-card__icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.service-card__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-white);
}

.service-card__body {
  padding: var(--spacing-xl);
}

.service-card__desc {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
}

.service-card__list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.service-card__list li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
}

.service-card__list li::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-secondary);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   10. Values Section
   -------------------------------------------------------------------------- */
.value-item {
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
}

.value-item__icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: rgba(43,74,111,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
  color: var(--color-primary);
}

.value-item__title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-xs);
}

.value-item__text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   11. Mission / Vision
   -------------------------------------------------------------------------- */
.mv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
}

.mv-card {
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.mv-card--mission {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

.mv-card--vision {
  background: var(--color-primary);
  color: var(--color-white);
}

.mv-card__label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-bottom: var(--spacing-sm);
}

.mv-card__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.mv-card__text {
  font-size: var(--font-size-base);
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
}

.mv-card__shape {
  position: absolute;
  bottom: -30px; right: -30px;
  width: 120px; height: 120px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
}

/* --------------------------------------------------------------------------
   12. Contact Section
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.contact-info__item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
  padding: var(--spacing-lg) 0;
  border-bottom: 1px solid var(--color-gray-100);
}

.contact-info__item:last-child {
  border-bottom: none;
}

.contact-info__icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-info__label {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-xs);
}

.contact-info__value {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-gray-800);
}

.contact-info__value a:hover {
  color: var(--color-primary);
}

/* Contact Form */
.contact-form {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-sm);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-gray-800);
  background: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  appearance: none;
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(43,74,111,0.08);
}

.form-control::placeholder {
  color: var(--color-gray-400);
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

/* --------------------------------------------------------------------------
   13. Social Links
   -------------------------------------------------------------------------- */
.social-links {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.social-link {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-gray-100);
  color: var(--color-gray-600);
  transition: all var(--transition-base);
  font-size: 1.1rem;
}

.social-link:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   14. Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--color-primary-dark);
  color: var(--color-white);
  padding: var(--spacing-4xl) 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-3xl);
  padding-bottom: var(--spacing-3xl);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer__brand p {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
  margin: var(--spacing-md) 0 var(--spacing-xl);
  max-width: 280px;
}

.footer__heading {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--spacing-lg);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.7);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-white);
}

.footer__bottom {
  padding: var(--spacing-lg) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer__copyright {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.45);
}

.footer__bottom-links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer__bottom-link {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.45);
  transition: color var(--transition-fast);
}

.footer__bottom-link:hover {
  color: rgba(255,255,255,0.75);
}

/* --------------------------------------------------------------------------
   15. WhatsApp Float Button
   -------------------------------------------------------------------------- */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: #25D366;
  color: var(--color-white);
  padding: 0.875rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: all var(--transition-base);
  text-decoration: none;
}

.whatsapp-float:hover {
  background: #1EBE5A;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 30px rgba(37,211,102,0.5);
}

.whatsapp-float svg {
  width: 22px; height: 22px;
  fill: currentColor;
}

.whatsapp-float__text {
  display: none;
}

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

/* --------------------------------------------------------------------------
   16. Page Header (inner pages)
   -------------------------------------------------------------------------- */
.page-header {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: var(--color-white);
  padding: calc(var(--nav-height) + var(--spacing-3xl)) 0 var(--spacing-3xl);
  text-align: center;
}

.page-header__label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-bottom: var(--spacing-md);
}

.page-header__title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.03em;
  margin-bottom: var(--spacing-md);
}

.page-header__desc {
  font-size: var(--font-size-lg);
  color: rgba(255,255,255,0.75);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.5);
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

.breadcrumb a { color: rgba(255,255,255,0.65); }
.breadcrumb a:hover { color: var(--color-white); }
.breadcrumb span { color: rgba(255,255,255,0.35); }

/* --------------------------------------------------------------------------
   17. Tags / Badges
   -------------------------------------------------------------------------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.tag--primary {
  background: rgba(43,74,111,0.08);
  color: var(--color-primary);
}

.tag--secondary {
  background: rgba(107,140,174,0.12);
  color: var(--color-secondary);
}

/* --------------------------------------------------------------------------
   18. Utility Classes
   -------------------------------------------------------------------------- */
.mb-sm  { margin-bottom: var(--spacing-sm); }
.mb-md  { margin-bottom: var(--spacing-md); }
.mb-lg  { margin-bottom: var(--spacing-lg); }
.mb-xl  { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }
.mb-3xl { margin-bottom: var(--spacing-3xl); }

.mt-lg  { margin-top: var(--spacing-lg); }
.mt-xl  { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }

.pt-section { padding-top: var(--spacing-4xl); }

.hidden    { display: none; }
.sr-only   {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  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; }

/* --------------------------------------------------------------------------
   19. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero__container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__subtitle { max-width: 100%; }
  .hero__actions { justify-content: center; }
  .hero__visual { display: none; }

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

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

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .nav__links,
  .nav__cta { display: none; }

  .nav__toggle { display: flex; }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

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

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

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

  .section {
    padding: var(--spacing-3xl) 0;
  }

  .container {
    padding: 0 var(--spacing-lg);
  }

  .hero__container {
    padding: var(--spacing-2xl) var(--spacing-lg);
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn--lg {
    width: 100%;
    justify-content: center;
  }
}

/* --------------------------------------------------------------------------
   20. Print
   -------------------------------------------------------------------------- */
@media print {
  .nav, .whatsapp-float, .footer { display: none; }
  body { font-size: 12pt; }
  a[href]::after { content: " (" attr(href) ")"; }
}