/* ==========================================================================
   TermoClima Vx1 — Estilos de Aplicación de Climatización
   Arquitectura CSS Moderna con Temas Estacionales (Cooling ❄️ / Heating 🔥)
   ========================================================================== */

:root {
  /* Paleta Base / Tipografía */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Tema por Defecto: Cooling (Verano / Frío) */
  --primary: #0284c7;
  --primary-dark: #0369a1;
  --primary-light: #e0f2fe;
  --accent: #38bdf8;
  --accent-glow: rgba(56, 189, 248, 0.25);
  
  /* Secundarios & Estados */
  --secondary: #0f172a;
  --secondary-light: #1e293b;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --orange: #f97316;

  /* Neutros & Superficies */
  --bg-main: #ffffff;
  --bg-light: #f8fafc;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  --border-subtle: #f1f5f9;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-inverse: #ffffff;

  /* Sombras y Efectos */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 25px var(--accent-glow);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Tema: Heating (Invierno / Calefacción & Aerotermia) */
[data-theme="heating"] {
  --primary: #ea580c;
  --primary-dark: #c2410c;
  --primary-light: #ffedd5;
  --accent: #fb923c;
  --accent-glow: rgba(251, 146, 60, 0.25);
  --shadow-glow: 0 0 25px rgba(234, 88, 12, 0.25);
}

/* Reseteo y Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg {
  vertical-align: middle;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section-pad {
  padding-top: 5.5rem;
  padding-bottom: 5.5rem;
}

.bg-light {
  background-color: var(--bg-light);
}

.bg-dark {
  background-color: #0b1120;
}

.text-center {
  text-align: center;
}

.text-white {
  color: #ffffff !important;
}

.text-gray {
  color: #94a3b8 !important;
}

.text-primary {
  color: var(--primary) !important;
}

.text-success {
  color: var(--success) !important;
}

.font-bold {
  font-weight: 700;
}

/* ==========================================================================
   TOPBAR
   ========================================================================== */
.topbar {
  background-color: #0b1120;
  color: #94a3b8;
  font-size: 0.8125rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.45rem 0;
}

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

.topbar-left, .topbar-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.badge-sec {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: rgba(16, 185, 129, 0.15);
  color: #34d399;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.75rem;
  border: 1px solid rgba(52, 211, 153, 0.3);
}

.topbar-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.topbar-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #e2e8f0;
  font-weight: 600;
}

.topbar-link:hover {
  color: var(--accent);
}

.topbar-whatsapp {
  color: #22c55e;
}

/* ==========================================================================
   HEADER & NAVEGACIÓN
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
  background-color: rgba(255, 255, 255, 0.98);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-logo .logo-bg {
  fill: var(--primary);
  transition: fill var(--transition-normal);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--secondary);
}

.brand-accent {
  color: var(--primary);
  transition: color var(--transition-normal);
}

.brand-tagline {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-main);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: width var(--transition-normal);
  border-radius: var(--radius-full);
}

.nav-link:hover {
  color: var(--primary);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Season Toggle Pill */
.season-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.season-pill {
  display: inline-flex;
  align-items: center;
  background-color: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 3px;
  gap: 2px;
  transition: all var(--transition-fast);
}

.season-option {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0.35rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  color: var(--text-muted);
  transition: all var(--transition-normal);
}

.season-option.active {
  background-color: var(--bg-card);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

[data-theme="heating"] .season-option.warm.active {
  background-color: var(--primary);
  color: #ffffff;
}

[data-theme="cooling"] .season-option.cold.active {
  background-color: var(--primary);
  color: #ffffff;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
}

.hamburger-bar {
  width: 24px;
  height: 2px;
  background-color: var(--secondary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* ==========================================================================
   BOTONES & ESTILOS COMUNES
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  padding: 0.75rem 1.4rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  white-space: nowrap;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.9rem 1.75rem;
  font-size: 1rem;
  border-radius: var(--radius-md);
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-secondary {
  background-color: var(--secondary);
  color: #ffffff;
}

.btn-secondary:hover {
  background-color: var(--secondary-light);
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background-color: var(--primary);
  color: #ffffff;
}

.section-header {
  max-width: 720px;
  margin: 0 auto 3.5rem auto;
}

.section-tag {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  background-color: var(--primary-light);
  color: var(--primary);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
  transition: all var(--transition-normal);
}

.section-tag-light {
  background-color: rgba(255, 255, 255, 0.12);
  color: #38bdf8;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--secondary);
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  position: relative;
  padding: 4.5rem 0 6rem 0;
  background: linear-gradient(175deg, rgba(2, 132, 199, 0.04) 0%, rgba(255, 255, 255, 1) 100%);
  overflow: hidden;
}

[data-theme="heating"] .hero-section {
  background: linear-gradient(175deg, rgba(234, 88, 12, 0.05) 0%, rgba(255, 255, 255, 1) 100%);
}

.hero-bg-glow {
  position: absolute;
  top: -10%;
  right: -5%;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, var(--accent-glow) 0%, rgba(255, 255, 255, 0) 70%);
  pointer-events: none;
  z-index: 1;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-pill-announcement {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulseGreen 2s infinite;
}

@keyframes pulseGreen {
  0% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 4.5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.035em;
  color: var(--secondary);
  margin-bottom: 1.25rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, #0284c7 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: all var(--transition-normal);
}

[data-theme="heating"] .gradient-text {
  background: linear-gradient(135deg, #ea580c 0%, #f97316 50%, #fbbf24 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--secondary);
}

.stat-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* ==========================================================================
   TERMOSTATO INTERACTIVO HERO
   ========================================================================== */
.thermostat-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  border: 1px solid var(--border-color);
  position: relative;
}

.card-header-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.status-live {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-main);
}

.status-dot {
  width: 7px;
  height: 7px;
  background-color: var(--primary);
  border-radius: 50%;
}

.eco-badge {
  background-color: rgba(16, 185, 129, 0.12);
  color: #059669;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}

.thermostat-display {
  display: flex;
  justify-content: center;
  margin: 1.5rem 0;
}

.temp-circle {
  width: 170px;
  height: 170px;
  border-radius: 50%;
  background: radial-gradient(circle at center, #ffffff 60%, var(--bg-light) 100%);
  border: 8px solid var(--primary-light);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: inset 0 2px 6px rgba(0,0,0,0.06), 0 4px 15px rgba(0,0,0,0.05);
  transition: border-color var(--transition-normal);
}

.temp-readout {
  display: flex;
  align-items: flex-start;
}

.temp-number {
  font-family: var(--font-heading);
  font-size: 3.75rem;
  font-weight: 900;
  line-height: 1;
  color: var(--secondary);
  letter-spacing: -0.04em;
}

.temp-unit {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary);
  margin-top: 0.2rem;
}

.temp-mode-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
}

.thermostat-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.temp-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background-color: var(--bg-light);
  color: var(--secondary);
  font-size: 1.35rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.temp-btn:hover {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.temp-slider-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.custom-range {
  -webkit-appearance: none;
  width: 100%;
  height: 7px;
  border-radius: 5px;
  background: #e2e8f0;
  outline: none;
}

.custom-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
  transition: all var(--transition-fast);
}

.custom-range::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.range-marks {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
}

.thermostat-modes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.mode-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: 0.6rem 0.25rem;
  background-color: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mode-btn.active {
  background-color: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

.thermostat-telemetry {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.25rem;
}

.telemetry-box {
  display: flex;
  flex-direction: column;
  text-align: center;
}

.telemetry-title {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
}

.telemetry-val {
  font-size: 0.875rem;
  font-weight: 800;
  color: var(--secondary);
}

/* ==========================================================================
   CALCULADORA DE CAPACIDAD BTU
   ========================================================================== */
.calculator-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2rem;
  align-items: start;
}

.calc-inputs-card, .calc-results-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

.calc-card-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 1.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--primary);
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 0.4rem;
}

.label-with-val {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.4rem;
}

.val-display {
  font-size: 0.875rem;
  font-weight: 800;
  color: var(--primary);
}

.room-type-selector {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
}

.room-type-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 0.25rem;
  background-color: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.room-type-btn.active {
  background-color: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.form-select, .form-input, .form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background-color: #ffffff;
  color: var(--text-main);
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-select:focus, .form-input:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* Resultados BTU */
.btu-hero-result {
  text-align: center;
  background: linear-gradient(145deg, var(--bg-light) 0%, rgba(2, 132, 199, 0.06) 100%);
  padding: 1.75rem 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
}

.btu-label {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.btu-val-big {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.1;
  margin: 0.4rem 0;
  letter-spacing: -0.03em;
}

.btu-unit {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--secondary);
}

.btu-exact-tag {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
}

.calc-specs-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px dashed var(--border-color);
}

.spec-label {
  color: var(--text-muted);
  font-weight: 600;
}

.spec-value {
  font-weight: 700;
  color: var(--secondary);
}

.calc-perks {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
  background-color: var(--bg-light);
  padding: 1rem;
  border-radius: var(--radius-sm);
}

.perk-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-main);
}

.calc-action-btns {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* ==========================================================================
   SERVICIOS
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

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

.featured-service {
  border-color: var(--primary);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.featured-ribbon {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  background-color: var(--primary);
  color: #ffffff;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
}

.service-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.icon-blue { background-color: #e0f2fe; color: #0284c7; }
.icon-cyan { background-color: #ecfeff; color: #0891b2; }
.icon-orange { background-color: #ffedd5; color: #ea580c; }
.icon-purple { background-color: #f3e8ff; color: #9333ea; }
.icon-emerald { background-color: #d1fae5; color: #059669; }
.icon-amber { background-color: #fef3c7; color: #d97706; }

.service-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.service-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.service-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.service-checklist li {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-main);
  position: relative;
  padding-left: 1.25rem;
}

.service-checklist li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 800;
}

.service-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.service-action-btn:hover {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

/* ==========================================================================
   SIMULADOR DE AHORRO ENERGÉTICO
   ========================================================================== */
.savings-container {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 3rem;
  align-items: center;
}

.savings-controls-panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.control-box {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.25rem;
  border-radius: var(--radius-md);
}

.control-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: #e2e8f0;
  margin-bottom: 0.75rem;
}

.hours-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
}

.hour-btn {
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  padding: 0.6rem 0.2rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.dark-select {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

.dark-select option {
  background-color: #0f172a;
  color: #ffffff;
}

.savings-summary-highlight {
  background: linear-gradient(135deg, rgba(2, 132, 199, 0.2) 0%, rgba(16, 185, 129, 0.2) 100%);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  text-align: center;
}

.highlight-title {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #38bdf8;
  letter-spacing: 0.05em;
}

.highlight-amount {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 900;
  color: #34d399;
  line-height: 1.1;
  margin: 0.4rem 0;
}

.highlight-note {
  font-size: 0.8125rem;
  color: #cbd5e1;
}

.savings-bars-panel {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.bars-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: #e2e8f0;
  margin-bottom: 0.5rem;
}

.savings-bar-item {
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.125rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.savings-bar-item.best-choice {
  background-color: rgba(2, 132, 199, 0.12);
  border-color: var(--primary);
}

.bar-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
}

.bar-name {
  font-size: 0.875rem;
  color: #f1f5f9;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.badge-best {
  background-color: #10b981;
  color: #ffffff;
  font-size: 0.6875rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-full);
}

.bar-price {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 800;
  color: #ffffff;
}

.bar-track {
  height: 8px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.fill-inverter { background: linear-gradient(90deg, #10b981, #34d399); }
.fill-onoff { background: linear-gradient(90deg, #0284c7, #38bdf8); }
.fill-gas { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.fill-convector { background: linear-gradient(90deg, #ef4444, #f87171); }

.bar-note {
  font-size: 0.75rem;
  color: #94a3b8;
}

/* ==========================================================================
   CATÁLOGO DE PRODUCTOS
   ========================================================================== */
.catalog-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.6rem 1.25rem;
  background-color: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn.active, .filter-btn:hover {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
}

.product-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

.product-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background-color: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(6px);
  color: #ffffff;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-full);
  z-index: 2;
}

.product-img-wrap {
  height: 180px;
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.product-illustration {
  width: 100%;
  display: flex;
  justify-content: center;
}

/* Gráfico estilizado AC */
.ac-unit-graphic {
  width: 220px;
  height: 60px;
  background: #ffffff;
  border-radius: 6px;
  box-shadow: 0 6px 15px rgba(0,0,0,0.1);
  border: 1px solid #cbd5e1;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 8px 12px;
}

.ac-unit-graphic.premium-dark {
  background: #1e293b;
  color: #ffffff;
}

.ac-brand-print {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  opacity: 0.8;
}

.ac-display-light {
  position: absolute;
  right: 12px;
  top: 8px;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--primary);
  background: rgba(2, 132, 199, 0.1);
  padding: 1px 6px;
  border-radius: 4px;
}

.ac-grille {
  height: 4px;
  background: #94a3b8;
  border-radius: 2px;
  width: 80%;
}

.ac-cassette-graphic {
  width: 90px;
  height: 90px;
  background: #ffffff;
  border-radius: 12px;
  border: 2px solid #cbd5e1;
  position: relative;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}

.cassette-center {
  width: 36px;
  height: 36px;
  background: #f1f5f9;
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.product-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-brand-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.product-name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 0.5rem;
}

.product-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 1.25rem;
}

.product-specs-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.chip {
  background-color: var(--bg-light);
  border: 1px solid var(--border-color);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  color: var(--text-main);
}

.chip-green {
  background-color: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.3);
  color: #059669;
}

.product-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}

.product-pricing {
  display: flex;
  flex-direction: column;
}

.price-from {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 600;
}

.price-val {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--secondary);
}

/* ==========================================================================
   DIAGNÓSTICO INTERACTIVO DE SÍNTOMAS
   ========================================================================== */
.diagnostic-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.symptoms-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.symptom-btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
}

.symptom-btn:hover {
  border-color: var(--primary);
  background-color: var(--bg-light);
}

.symptom-btn.active {
  border-color: var(--primary);
  background-color: var(--primary-light);
  box-shadow: var(--shadow-sm);
}

.symptom-icon {
  font-size: 1.75rem;
}

.symptom-btn-text {
  display: flex;
  flex-direction: column;
}

.symptom-btn-text strong {
  font-size: 0.9375rem;
  color: var(--secondary);
  margin-bottom: 0.2rem;
}

.symptom-btn-text span {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.diagnostic-detail-panel {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   PLANES DE MANTENIMIENTO
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
}

.pricing-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.pricing-featured {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transform: scale(1.03);
}

.pricing-featured:hover {
  transform: scale(1.03) translateY(-6px);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--primary);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.3rem 1rem;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
}

.pricing-header {
  text-align: center;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
}

.plan-name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 0.4rem;
}

.plan-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  min-height: 42px;
}

.plan-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.2rem;
}

.plan-price .currency {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--secondary);
}

.plan-price .amount {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 900;
  color: var(--secondary);
  letter-spacing: -0.03em;
}

.plan-price .period {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 600;
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.plan-features li {
  font-size: 0.875rem;
  color: var(--text-main);
  position: relative;
  padding-left: 1.5rem;
}

.plan-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #10b981;
  font-weight: 800;
}

/* ==========================================================================
   PROCESO 4 PASOS
   ========================================================================== */
.process-steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.step-card {
  background-color: #ffffff;
  border-radius: var(--radius-md);
  padding: 1.75rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
}

.step-badge {
  display: inline-block;
  background-color: var(--primary-light);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
  align-self: flex-start;
}

.step-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 0.5rem;
}

.step-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   TESTIMONIOS & COBERTURA
   ========================================================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 3.5rem;
}

.testimonial-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.testimonial-stars {
  color: #f59e0b;
  font-size: 1.1rem;
  margin-bottom: 1rem;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 0.9375rem;
  color: var(--text-main);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--primary-light);
  color: var(--primary);
  font-weight: 800;
  font-size: 0.9375rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.author-info {
  display: flex;
  flex-direction: column;
}

.author-info strong {
  font-size: 0.9375rem;
  color: var(--secondary);
}

.author-info span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.coverage-box {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2.25rem 2.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.coverage-icon {
  color: #38bdf8;
  flex-shrink: 0;
}

.coverage-text {
  flex-grow: 1;
}

.coverage-text h4 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.coverage-text p {
  font-size: 0.9375rem;
  color: #94a3b8;
  line-height: 1.5;
}

/* ==========================================================================
   FAQ ACCORDION
   ========================================================================== */
.faq-accordion-wrap {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background-color: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--secondary);
  cursor: pointer;
  gap: 1rem;
}

.faq-icon {
  color: var(--primary);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  background-color: #ffffff;
}

.faq-answer p {
  padding: 0 1.5rem 1.25rem 1.5rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   SECCIÓN DE CONTACTO
   ========================================================================== */
.contact-card-wrapper {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3rem;
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.contact-info-col {
  background: linear-gradient(145deg, #0f172a 0%, #1e293b 100%);
  color: #ffffff;
  padding: 3rem;
  display: flex;
  flex-direction: column;
}

.contact-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.contact-desc {
  font-size: 0.9375rem;
  color: #94a3b8;
  line-height: 1.6;
  margin-bottom: 2.5rem;
}

.contact-direct-items {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: rgba(255, 255, 255, 0.1);
  color: #38bdf8;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-label {
  display: block;
  font-size: 0.75rem;
  color: #94a3b8;
  font-weight: 600;
  text-transform: uppercase;
}

.contact-value {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
}

.certifications-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
}

.cert-badge {
  background-color: rgba(255, 255, 255, 0.08);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  color: #cbd5e1;
}

.contact-form-col {
  padding: 3rem;
}

.form-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 1.75rem;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background-color: #0b1120;
  color: #94a3b8;
  padding-top: 4.5rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-desc {
  font-size: 0.875rem;
  line-height: 1.6;
  margin: 1rem 0 1.25rem 0;
  max-width: 320px;
}

.footer-legal-tag {
  font-size: 0.75rem;
  color: #64748b;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.footer-menu, .footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.875rem;
}

.footer-menu a:hover {
  color: #38bdf8;
}

.footer-bottom {
  padding: 1.5rem 0;
  font-size: 0.8125rem;
  color: #64748b;
}

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

.footer-vx1-meta {
  font-weight: 600;
}

/* ==========================================================================
   MODAL DE AGENDAMIENTO & BOTÓN WHATSAPP
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-backdrop.active {
  display: flex;
  animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-dialog {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  max-width: 580px;
  width: 100%;
  padding: 2.5rem;
  position: relative;
  box-shadow: var(--shadow-xl);
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: none;
  border: none;
  font-size: 1.75rem;
  color: var(--text-muted);
  cursor: pointer;
}

.modal-header {
  margin-bottom: 1.75rem;
}

.modal-tag {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--primary);
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--secondary);
  margin-top: 0.25rem;
}

.modal-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.floating-whatsapp {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #25d366;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 99;
  transition: all var(--transition-normal);
}

.floating-whatsapp:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 25px rgba(37, 211, 102, 0.6);
}

.whatsapp-tooltip {
  position: absolute;
  right: 70px;
  background-color: #0f172a;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  pointer-events: none;
  opacity: 0;
  transform: translateX(10px);
  transition: all var(--transition-fast);
}

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

/* ==========================================================================
   RESPONSIVE (MÓVILES & TABLETS)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .calculator-grid, .savings-container, .diagnostic-wrapper, .contact-card-wrapper {
    grid-template-columns: 1fr;
  }

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

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

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

  .pricing-featured {
    transform: none;
  }
  .pricing-featured:hover {
    transform: translateY(-6px);
  }
}

@media (max-width: 768px) {
  .hide-mobile {
    display: none !important;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 4.5rem;
    left: 0;
    width: 100%;
    background-color: #ffffff;
    flex-direction: column;
    padding: 1.5rem;
    box-shadow: var(--shadow-xl);
    border-bottom: 1px solid var(--border-color);
    display: none;
  }

  .nav-menu.open {
    display: flex;
  }

  .services-grid, .pricing-grid, .testimonials-grid, .process-steps-grid {
    grid-template-columns: 1fr;
  }

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

  .room-type-selector {
    grid-template-columns: repeat(3, 1fr);
  }

  .form-grid-2 {
    grid-template-columns: 1fr;
  }

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

  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom-inner {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}