/* =============================================
   Roger Soluciones Web — assets/css/main.css
   Sistema de diseño global dark + neon
   ============================================= */

/* -----------------------------------------------
   1. VARIABLES CSS
----------------------------------------------- */
:root {
  /* Colores primarios */
  --color-primary:       #0081C6;
  --color-primary-neon:  #00AAFF;
  --color-accent:        #FF0000;
  --color-accent-soft:   #FF4444;

  /* Fondos */
  --color-bg:            #0A0C14;
  --color-surface:       #12141E;
  --color-surface-2:     #1A1D2E;
  --color-border:        #1E2235;
  --color-border-hover:  #2A304A;

  /* Textos */
  --color-text:          #E8EAF0;
  --color-text-secondary:#C4C9D6;
  --color-text-muted:    #8B92A5;

  /* Especiales */
  --color-whatsapp:      #00C474;
  --color-success:       #00C474;

  /* Tipografías */
  --font-main:    'Inter', sans-serif;
  --font-display: 'Poppins', sans-serif;

  /* Radios */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-pill: 20px;

  /* Transiciones */
  --transition:       all .2s ease;
  --transition-slow:  all .35s ease;

  /* Espaciado */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  48px;
  --space-2xl: 80px;

  /* Ancho máximo */
  --max-width: 1200px;
}

/* -----------------------------------------------
   2. RESET Y BASE
----------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

/* Canvas global de partículas — fondo de toda la página */
#hero-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  opacity: 0.18;
}

/* Todo el contenido encima del canvas */
.site-header,
main,
.site-footer {
  position: relative;
  z-index: 1;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

a:hover {
  color: var(--color-primary-neon);
}

ul {
  list-style: none;
}

/* -----------------------------------------------
   3. TIPOGRAFÍA
----------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-main);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-text);
}

h1 { font-size: clamp(28px, 5vw, 48px); }
h2 { font-size: clamp(22px, 4vw, 36px); }
h3 { font-size: clamp(17px, 2.5vw, 22px); color: #F0F4FF; }
h4 { font-size: 20px; }
h5 { font-size: 18px; }
h6 { font-size: 16px; }

/* H3 específicos en cards y rubros */
.card-title {
  font-size: 19px;
  font-weight: 600;
  color: #F0F4FF;
  margin-bottom: var(--space-xs);
}

.rubro-title {
  font-size: 16px;
  font-weight: 600;
  color: #F0F4FF;
  margin-bottom: 3px;
}

.why-item-title {
  font-size: 16px;
  font-weight: 600;
  color: #F0F4FF;
  margin-bottom: 3px;
}

p {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.text-muted  { color: var(--color-text-muted); }
.text-blue   { color: var(--color-primary); }
.text-neon   { color: var(--color-primary-neon); }
.text-red    { color: var(--color-accent-soft); }
.text-center { text-align: center; }

/* Poppins — solo para heroes y displays grandes */
.display {
  font-family: var(--font-display);
  font-weight: 700;
}

/* -----------------------------------------------
   4. LAYOUT — CONTAINER Y SECCIONES
----------------------------------------------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

section {
  padding: var(--space-2xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-tag {
  display: inline-block;
  background: rgba(0, 129, 198, 0.1);
  color: var(--color-primary-neon);
  border: 0.5px solid rgba(0, 129, 198, 0.3);
  border-radius: var(--radius-pill);
  padding: 4px 14px;
  font-size: 12px;
  letter-spacing: .05em;
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: clamp(22px, 4vw, 36px);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-size: 16px;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Grids */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-md); }

/* -----------------------------------------------
   5. HEADER Y NAVEGACIÓN
----------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  border-bottom: none;
  transition: var(--transition);
}

.site-header.scrolled {
  background: rgba(10, 12, 20, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: rgba(0, 129, 198, 0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  height: 68px;
  position: relative;
}

.logo {
  flex-shrink: 0;
}

/* Nav centrado absolutamente */
.nav-desktop {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

/* Botón CTA empujado a la derecha */
.btn-header-cta {
  margin-left: auto;
}

.logo img {
  height: 50px;
  width: auto;
}

/* Nav desktop */
.nav-desktop ul {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-link {
  font-size: 16px;
  color: var(--color-text-muted);
  font-weight: 400;
  position: relative;
  padding: 4px 0;
  transition: var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-primary);
  transition: width .25s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Dropdown */
.nav-dropdown-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-arrow {
  font-size: 10px;
  transition: transform .2s;
  display: inline-block;
}

.nav-dropdown-wrap:hover .nav-arrow {
  transform: rotate(180deg);
}

.nav-desktop .nav-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-surface);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 16px var(--space-sm) var(--space-sm);
  min-width: 220px;
  box-shadow: 0 20px 40px rgba(0,0,0,.4);
  z-index: 100;
}

/* Puente invisible que cubre el gap entre trigger y dropdown */
.nav-desktop .nav-dropdown::before {
  content: '';
  position: absolute;
  top: -14px;
  left: 0;
  right: 0;
  height: 14px;
}

.nav-dropdown-wrap:hover .nav-dropdown {
  display: block;
}

.nav-dropdown li a {
  display: block;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.nav-dropdown li a:hover {
  background: rgba(0, 129, 198, 0.1);
  color: var(--color-text);
}

/* CTA header */
.btn-header-cta {
  display: inline-flex;
  align-items: center;
  background: var(--color-primary);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: var(--radius-md);
  margin-left: auto;
  white-space: nowrap;
  transition: background .2s, transform .15s;
}

.btn-header-cta:hover {
  background: var(--color-primary-neon);
  color: #fff;
  transform: scale(1.02);
}

/* Hamburguesa extremo derecho */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

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

/* Nav mobile */
.nav-mobile {
  display: none;
  background: var(--color-surface);
  border-top: 0.5px solid var(--color-border);
  padding: var(--space-md) 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}

.nav-mobile.open {
  max-height: 600px;
}

.nav-mobile ul {
  padding: 0 var(--space-lg);
}

.nav-mobile li a {
  display: block;
  padding: 10px 0;
  font-size: 14px;
  color: var(--color-text-secondary);
  border-bottom: 0.5px solid var(--color-border);
  transition: color .2s;
}

.nav-mobile li a:hover,
.nav-mobile li a.active {
  color: var(--color-primary);
}

.mobile-section-label {
  font-size: 10px;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 12px 0 4px;
}

.btn-mobile-cta {
  display: block;
  margin: var(--space-md) 0;
  background: var(--color-whatsapp);
  color: #fff;
  text-align: center;
  padding: 12px;
  border-radius: var(--radius-md);
  font-weight: 500;
  border-bottom: none;
}

/* -----------------------------------------------
   6. BOTONES
----------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  text-decoration: none;
  white-space: nowrap;
  transform-style: preserve-3d;
}

.btn:hover {
  transform: translateY(-4px) scale(1.03);
}

.btn:active {
  transform: translateY(-1px) scale(0.99);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 0 #005a8e, 0 6px 12px rgba(0,129,198,0.3);
}
.btn-primary:hover {
  background: var(--color-primary-neon);
  color: #fff;
  box-shadow: 0 6px 0 #005a8e, 0 10px 20px rgba(0,170,255,0.4);
}
.btn-primary:active {
  box-shadow: 0 2px 0 #005a8e, 0 4px 8px rgba(0,129,198,0.3);
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 0 #aa0000, 0 6px 12px rgba(255,0,0,0.3);
}
.btn-accent:hover {
  background: var(--color-accent-soft);
  color: #fff;
  box-shadow: 0 6px 0 #aa0000, 0 10px 20px rgba(255,68,68,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
  box-shadow: 0 4px 0 rgba(0,129,198,0.3);
}
.btn-outline:hover {
  border-color: var(--color-primary-neon);
  color: var(--color-primary-neon);
  box-shadow: 0 6px 0 rgba(0,170,255,0.3), 0 8px 16px rgba(0,170,255,0.2);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border: 0.5px solid var(--color-border);
  box-shadow: 0 4px 0 rgba(255,255,255,0.05);
}
.btn-ghost:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text);
  box-shadow: 0 6px 0 rgba(255,255,255,0.08);
}

.btn-whatsapp {
  background: var(--color-whatsapp);
  color: #fff;
  box-shadow: 0 4px 0 #008a50, 0 6px 12px rgba(0,196,116,0.3);
}
.btn-whatsapp:hover {
  background: #00a862;
  color: #fff;
  box-shadow: 0 6px 0 #008a50, 0 10px 20px rgba(0,196,116,0.4);
}

.btn-lg {
  padding: 14px 32px;
  font-size: 15px;
}

/* -----------------------------------------------
   7. CARDS CON SNAKE BORDER NEON
----------------------------------------------- */
.card {
  position: relative;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 0.5px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: transform .3s ease, opacity .3s ease,
              box-shadow .3s ease, border-color .25s;
}

.card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: transparent;
  z-index: 2;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  background: rgba(255, 255, 255, 0.06);
}

/* Cards vecinas se apagan cuando una tiene hover */
.services-grid:has(.card:hover) .card:not(:hover) {
  opacity: 0.55;
  transform: scale(0.98);
}

/* H3 cambia de color al hacer hover según variante */
.card.card-blue:hover .card-title { color: var(--color-primary-neon); }
.card.card-red:hover .card-title   { color: #FF5555; }
.card.card-green:hover .card-title { color: #00FF9A; }

/* Snake SVG inyectado por JS */
.card .snake-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: visible;
}

.snake-svg .snake-track {
  fill: none;
  stroke: transparent;
}

.snake-svg .snake-glow {
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  opacity: 0;
  transition: opacity .2s;
}

.card:hover .snake-svg .snake-glow {
  opacity: 1;
  animation: snakeRun 20s linear infinite;
}

@keyframes snakeRun {
  to { stroke-dashoffset: -9999; }
}

.card.card-blue .snake-glow {
  stroke: #00AAFF;
  filter: drop-shadow(0 0 3px #00AAFF) drop-shadow(0 0 6px #0081C6);
}

.card.card-red .snake-glow {
  stroke: #FF5555;
  filter: drop-shadow(0 0 3px #FF5555) drop-shadow(0 0 6px #FF0000);
}

.card.card-green .snake-glow {
  stroke: #00FF9A;
  filter: drop-shadow(0 0 3px #00FF9A) drop-shadow(0 0 6px #00C474);
}

/* Icono de card */
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(0, 129, 198, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: var(--space-md);
}

.card.card-red .card-icon   { background: rgba(255, 0, 0, 0.1); }
.card.card-green .card-icon { background: rgba(0, 196, 116, 0.1); }

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.card-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.card-link {
  display: inline-block;
  margin-top: var(--space-sm);
  font-size: 13px;
  color: var(--color-primary);
  transition: color .2s;
}

.card:hover .card-link { color: var(--color-primary-neon); }
.card.card-red:hover .card-link { color: #FF8888; }
.card.card-green:hover .card-link { color: #00FF9A; }

/* -----------------------------------------------
   8. BADGES
----------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 11px;
  font-weight: 500;
}

.badge-blue  { background: rgba(0,129,198,.12); color: var(--color-primary-neon); border: 0.5px solid rgba(0,129,198,.3); }
.badge-red   { background: rgba(255,0,0,.1);    color: #FF6666;                   border: 0.5px solid rgba(255,0,0,.25); }
.badge-green { background: rgba(0,196,116,.12); color: var(--color-whatsapp);     border: 0.5px solid rgba(0,196,116,.3); }
.badge-gray  { background: var(--color-surface-2); color: var(--color-text-muted); border: 0.5px solid var(--color-border); }

/* -----------------------------------------------
   9. FORMULARIO
----------------------------------------------- */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: var(--color-surface-2);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 11px 14px;
  font-size: 14px;
  color: var(--color-text);
  font-family: var(--font-main);
  transition: border-color .2s;
  outline: none;
  appearance: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 129, 198, 0.12);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* -----------------------------------------------
   10. FOOTER
----------------------------------------------- */
.site-footer {
  border-top: 0.5px solid rgba(255,255,255,0.05);
  padding: var(--space-2xl) 0 0;
  margin-top: var(--space-2xl);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 0.5px solid var(--color-border);
}

.footer-brand p {
  font-size: 13px;
  color: var(--color-text-muted);
  margin: var(--space-md) 0;
  line-height: 1.7;
  max-width: 300px;
}

.footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.fbadge {
  background: rgba(0, 129, 198, 0.08);
  color: var(--color-text-muted);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 3px 10px;
  font-size: 11px;
}

.footer-col h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  letter-spacing: .03em;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 13px;
  color: var(--color-text-muted);
  transition: color .2s;
}

.footer-col ul li a:hover {
  color: var(--color-primary);
}

.footer-social {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.footer-social a {
  width: 32px;
  height: 32px;
  background: var(--color-surface-2);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: var(--transition);
}

.footer-social a:hover {
  background: rgba(0, 129, 198, 0.12);
  border-color: rgba(0, 129, 198, 0.3);
  color: var(--color-primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) 0;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-bottom p {
  font-size: 12px;
  color: var(--color-text-muted);
}

.footer-bottom a {
  font-size: 12px;
  color: var(--color-text-muted);
  transition: color .2s;
}

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

.footer-bottom .separator {
  margin: 0 6px;
  color: var(--color-border);
}

/* -----------------------------------------------
   11. BOTÓN WHATSAPP FLOTANTE
----------------------------------------------- */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 24px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-whatsapp);
  color: #fff;
  padding: 10px 16px 10px 12px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 4px 20px rgba(0, 196, 116, 0.35);
  transition: transform .2s, box-shadow .2s;
}

.whatsapp-float:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 6px 28px rgba(0, 196, 116, 0.5);
  color: #fff;
}

/* -----------------------------------------------
   12. ANIMACIONES — SLIDE IN AL SCROLL
----------------------------------------------- */
.slide-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .5s ease, transform .5s ease;
}

.slide-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Delays escalonados para grids */
.slide-in:nth-child(2) { transition-delay: .1s; }
.slide-in:nth-child(3) { transition-delay: .2s; }
.slide-in:nth-child(4) { transition-delay: .3s; }
.slide-in:nth-child(5) { transition-delay: .4s; }
.slide-in:nth-child(6) { transition-delay: .5s; }

/* -----------------------------------------------
   13. STATS / CONTADORES
----------------------------------------------- */
.stats-section {
  border-top: none;
  border-bottom: none;
  padding: var(--space-xl) 0;
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 0;
  position: relative;
  z-index: 2;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  text-align: center;
}

.stat-item {
  padding: var(--space-md);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-number.red   { color: var(--color-accent-soft); }
.stat-number.green { color: var(--color-whatsapp); }

.stat-label {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* -----------------------------------------------
   14. TESTIMONIOS
----------------------------------------------- */
.testimonial {
  background: var(--color-surface-2);
  border-left: 2px solid var(--color-primary);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  padding: var(--space-lg);
}

.testimonial blockquote {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  font-style: italic;
  margin-bottom: var(--space-sm);
}

.testimonial cite {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  font-style: normal;
}

.testimonial .cite-role {
  font-size: 11px;
  color: var(--color-text-muted);
  display: block;
}

/* -----------------------------------------------
   15. TYPEWRITER CURSOR
----------------------------------------------- */
.typewriter {
  border-right: 2.5px solid var(--color-primary-neon);
  padding-right: 3px;
  animation: blink .75s step-end infinite;
}

@keyframes blink {
  50% { border-color: transparent; }
}

/* -----------------------------------------------
   16. UTILIDADES
----------------------------------------------- */
.mt-sm  { margin-top: var(--space-sm); }
.mt-md  { margin-top: var(--space-md); }
.mt-lg  { margin-top: var(--space-lg); }
.mt-xl  { margin-top: var(--space-xl); }
.mb-md  { margin-bottom: var(--space-md); }
.mb-lg  { margin-bottom: var(--space-lg); }

.flex         { display: flex; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.gap-sm       { gap: var(--space-sm); }
.gap-md       { gap: var(--space-md); }

.divider {
  border: none;
  border-top: 0.5px solid var(--color-border);
  margin: var(--space-lg) 0;
}

/* -----------------------------------------------
   17. RESPONSIVE
----------------------------------------------- */
@media (max-width: 1024px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-desktop  { display: none; }
  .nav-hamburger { display: flex; }
  .nav-mobile   { display: block; }
  .btn-header-cta { display: none; }

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

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

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

  .whatsapp-float .whatsapp-label { display: none; }
  .whatsapp-float { padding: 12px; border-radius: 50%; }

  section { padding: var(--space-xl) 0; }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--space-md); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}