/* ==========================================================================
   MEDIADVANCE S.A.S. · MODELO 2: INMERSIVO 3D / WEBGL
   Estética Biotecnológica & Nutrición Clínica de Alto Impacto
   Fondo Clínico Profundo (#060B14) · Iluminación Cyan (#00E5FF) y Violeta (#7C4DFF)
   Contraste WCAG AA Compliant · Cero Emojis · Iconografía SVG Técnica
   ========================================================================== */

:root {
  --bg-deep: #060B14;
  --bg-card: rgba(10, 18, 34, 0.78);
  --bg-card-hover: rgba(15, 26, 48, 0.92);
  --bg-surface: #0E1726;
  --bg-overlay: rgba(6, 11, 20, 0.85);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-tech: rgba(0, 229, 255, 0.22);
  --border-tech-active: #00E5FF;

  --cyan-primary: #00E5FF;
  --cyan-dim: #00B4D8;
  --cyan-glow: rgba(0, 229, 255, 0.35);
  --cyan-subtle: rgba(0, 229, 255, 0.08);

  --violet-primary: #7C4DFF;
  --violet-glow: rgba(124, 77, 255, 0.3);
  --violet-subtle: rgba(124, 77, 255, 0.1);

  --emerald-safe: #10B981;
  --emerald-glow: rgba(16, 185, 129, 0.3);
  --amber-warn: #F59E0B;
  --rose-alert: #F43F5E;

  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-inverse: #060B14;

  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-hud: 0 16px 36px -10px rgba(0, 0, 0, 0.85), 0 0 1px 1px rgba(0, 229, 255, 0.15);
  --shadow-cyan-glow: 0 0 30px rgba(0, 229, 255, 0.25);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  background-color: var(--bg-deep);
  min-height: 100vh;
  position: relative;
}

/* ==========================================================================
   1. BANNER OBLIGATORIO DE DEMOSTRACIÓN SIMCODEC & SELECTOR DE 4 MODELOS
   ========================================================================== */
.demo-bar {
  background: #04070D;
  border-bottom: 1px solid rgba(0, 229, 255, 0.2);
  color: var(--text-secondary);
  font-size: 0.8125rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.demo-bar__inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 8px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.demo-bar__info {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.demo-bar__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--cyan-subtle);
  border: 1px solid var(--border-tech);
  color: var(--cyan-primary);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

.demo-bar__text {
  color: var(--text-secondary);
}

.demo-bar__link {
  color: var(--cyan-primary);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color var(--transition-fast);
}

.demo-bar__link:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

.demo-bar__models {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.demo-bar__models-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-right: 4px;
}

.model-pill {
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.03);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.model-pill:hover {
  border-color: var(--border-tech);
  color: var(--text-primary);
  background: rgba(0, 229, 255, 0.06);
}

.model-pill--active {
  background: var(--cyan-primary);
  color: var(--text-inverse);
  border-color: var(--cyan-primary);
  font-weight: 700;
  box-shadow: 0 0 12px var(--cyan-glow);
}

/* ==========================================================================
   2. HEADER CLÍNICO PRINCIPAL
   ========================================================================== */
.site-header {
  position: relative;
  z-index: 900;
  background: rgba(6, 11, 20, 0.88);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.site-header__inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.site-logo__img {
  height: 38px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(0, 229, 255, 0.3));
}

.site-logo__text {
  display: flex;
  flex-direction: column;
}

.site-logo__name {
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #FFFFFF;
}

.site-logo__sub {
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--cyan-primary);
  text-transform: uppercase;
  font-weight: 600;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav__link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.site-nav__link:hover {
  color: var(--cyan-primary);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.badge-arcsa {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 5px 10px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #34D399;
  border-radius: var(--radius-sm);
  letter-spacing: 0.03em;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--cyan-primary);
  color: var(--text-inverse);
  padding: 9px 18px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid var(--cyan-primary);
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: 0 0 16px var(--cyan-glow);
}

.btn-primary:hover {
  background: #FFFFFF;
  border-color: #FFFFFF;
  box-shadow: 0 0 24px rgba(255, 255, 255, 0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  padding: 9px 18px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: rgba(0, 229, 255, 0.08);
  border-color: var(--border-tech);
  color: var(--cyan-primary);
}

/* ==========================================================================
   3. HERO INMERSIVO 3D WEBGL CONTAINER
   ========================================================================== */
.hero-experience {
  position: relative;
  min-height: 90vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  background: radial-gradient(circle at 50% 45%, #0B162B 0%, #060B14 70%);
}

#webgl-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  outline: none;
}

/* Retícula tecnológica de fondo */
.hero-experience::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 229, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 2;
  mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
}

/* HUD Overlay */
.hud-layer {
  position: relative;
  z-index: 10;
  pointer-events: none;
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  flex-grow: 1;
}

.hud-layer * {
  pointer-events: auto;
}

/* HUD Header / Telemetría */
.hud-telemetry {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  flex-wrap: wrap;
}

.hud-title-block {
  max-width: 520px;
}

.hud-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--violet-subtle);
  border: 1px solid rgba(124, 77, 255, 0.35);
  color: #B388FF;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hud-tag__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #B388FF;
  box-shadow: 0 0 8px #B388FF;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.hud-heading {
  font-size: clamp(2rem, 3.8vw, 3.2rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.hud-heading span {
  background: linear-gradient(135deg, #00E5FF 0%, #7C4DFF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hud-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* HUD Metric Cards */
.hud-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  min-width: 320px;
}

.hud-stat-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--cyan-primary);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.hud-stat-label {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 5px;
}

.hud-stat-val {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-top: 3px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.hud-stat-val small {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--cyan-primary);
}

/* Hotspots floating in 3D */
.hotspot-point {
  position: absolute;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0, 229, 255, 0.2);
  border: 1px solid var(--cyan-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 20;
  transform: translate(-50%, -50%);
  transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275), background 0.2s;
  pointer-events: auto;
  box-shadow: 0 0 15px var(--cyan-glow);
}

.hotspot-point::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cyan-primary);
}

.hotspot-point:hover, .hotspot-point.active {
  transform: translate(-50%, -50%) scale(1.3);
  background: rgba(0, 229, 255, 0.4);
  box-shadow: 0 0 25px var(--cyan-primary);
}

.hotspot-point.active::before {
  background: #FFFFFF;
}

/* Hotspot pulse ripple */
.hotspot-point::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1px solid var(--cyan-primary);
  animation: ripple 2s infinite ease-out;
  opacity: 0;
}

@keyframes ripple {
  0% { transform: scale(0.7); opacity: 1; }
  100% { transform: scale(1.8); opacity: 0; }
}

/* HUD Controls Toolbar (Bottom) */
.hud-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 20px;
}

.hud-controls-group {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 6px 10px;
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.hud-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.hud-btn:hover {
  color: var(--cyan-primary);
  background: rgba(0, 229, 255, 0.06);
}

.hud-btn--active {
  background: rgba(0, 229, 255, 0.15);
  border-color: var(--border-tech);
  color: var(--cyan-primary);
}

.hud-btn svg {
  width: 14px;
  height: 14px;
}

/* Hotspot Quick Selectors */
.hotspot-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.hotspot-pill {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.775rem;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
  backdrop-filter: blur(8px);
}

.hotspot-pill:hover {
  border-color: var(--cyan-primary);
  color: #FFFFFF;
}

.hotspot-pill.active {
  background: rgba(0, 229, 255, 0.18);
  border-color: var(--cyan-primary);
  color: var(--cyan-primary);
  font-weight: 700;
}

.hotspot-pill-badge {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan-primary);
}

/* Drawer / Modal de Hotspot Activo */
.hotspot-panel {
  position: absolute;
  right: 24px;
  top: 100px;
  max-width: 380px;
  background: rgba(10, 18, 34, 0.92);
  border: 1px solid var(--border-tech);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-hud);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 50;
  transition: all var(--transition-normal);
  transform-origin: top right;
}

.hotspot-panel.hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.92) translateY(-10px);
}

.hotspot-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-subtle);
}

.hotspot-panel__category {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  color: var(--cyan-primary);
  letter-spacing: 0.05em;
}

.hotspot-panel__close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.hotspot-panel__close:hover {
  color: #FFFFFF;
}

.hotspot-panel__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #FFFFFF;
}

.hotspot-panel__body {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.hotspot-panel__specs {
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.hotspot-spec-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.775rem;
}

.hotspot-spec-key {
  color: var(--text-muted);
}

.hotspot-spec-val {
  color: var(--cyan-primary);
  font-family: var(--font-mono);
  font-weight: 600;
}

/* ==========================================================================
   4. SECCIÓN CIENTÍFICA & PILARES CLÍNICOS
   ========================================================================== */
.section-clinical {
  padding: 90px 24px;
  max-width: 1440px;
  margin: 0 auto;
  position: relative;
  z-index: 10;
}

.section-clinical__header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 50px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--cyan-subtle);
  border: 1px solid var(--border-tech);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
}

.section-heading {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-lead {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 50px;
}

.pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.pillar-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--border-tech), transparent);
  transition: background var(--transition-normal);
}

.pillar-card:hover {
  border-color: var(--border-tech);
  transform: translateY(-4px);
  background: var(--bg-card-hover);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

.pillar-card:hover::before {
  background: linear-gradient(90deg, transparent, var(--cyan-primary), transparent);
}

.pillar-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--cyan-subtle);
  border: 1px solid var(--border-tech);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan-primary);
  margin-bottom: 20px;
}

.pillar-icon-box svg {
  width: 24px;
  height: 24px;
}

.pillar-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.pillar-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex-grow: 1;
}

.pillar-metric {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.775rem;
}

.pillar-metric-name {
  color: var(--text-muted);
}

.pillar-metric-value {
  color: var(--cyan-primary);
  font-family: var(--font-mono);
  font-weight: 700;
}

/* ==========================================================================
   5. SIMULADOR CLÍNICO DE NUTRICIÓN Y DOSIFICACIÓN HOSPITALARIA
   ========================================================================== */
.section-calculator {
  background: #080F1E;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 80px 24px;
  position: relative;
}

.calc-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: center;
}

.calc-info h2 {
  font-size: clamp(1.8rem, 2.8vw, 2.4rem);
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 16px;
  line-height: 1.25;
}

.calc-info p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 24px;
}

.calc-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.calc-features-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-primary);
}

.calc-features-list svg {
  color: var(--cyan-primary);
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}

.calc-card {
  background: var(--bg-card);
  border: 1px solid var(--border-tech);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-hud);
}

.calc-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.calc-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  gap: 8px;
}

.calc-badge {
  background: var(--cyan-subtle);
  color: var(--cyan-primary);
  font-size: 0.7rem;
  font-family: var(--font-mono);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-tech);
}

.calc-form-group {
  margin-bottom: 18px;
}

.calc-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.calc-range-wrapper {
  display: flex;
  align-items: center;
  gap: 14px;
}

.calc-range {
  flex-grow: 1;
  accent-color: var(--cyan-primary);
  height: 6px;
  background: #1A263D;
  border-radius: 3px;
  cursor: pointer;
}

.calc-val-display {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--cyan-primary);
  min-width: 65px;
  text-align: right;
}

.calc-select {
  width: 100%;
  padding: 10px 14px;
  background: #0E1726;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.875rem;
  outline: none;
  cursor: pointer;
}

.calc-select:focus {
  border-color: var(--cyan-primary);
}

.calc-result-box {
  background: rgba(0, 229, 255, 0.05);
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: var(--radius-md);
  padding: 18px;
  margin-top: 24px;
}

.calc-result-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 14px;
}

.calc-result-item {
  display: flex;
  flex-direction: column;
}

.calc-result-k {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.calc-result-v {
  font-size: 1.25rem;
  font-weight: 800;
  color: #FFFFFF;
  font-family: var(--font-mono);
}

.calc-result-v small {
  font-size: 0.75rem;
  color: var(--cyan-primary);
}

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

/* ==========================================================================
   6. CATÁLOGO DE PRODUCTOS ESPECIALIZADOS
   ========================================================================== */
.section-products {
  padding: 90px 24px;
  max-width: 1440px;
  margin: 0 auto;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
  margin-top: 40px;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.product-card:hover {
  border-color: var(--border-tech);
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.6);
}

.product-image-container {
  height: 220px;
  position: relative;
  background: #0B1322;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 16px;
}

.product-image-container img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  transition: transform 0.4s ease;
}

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

.product-badge-overlay {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(6, 11, 20, 0.85);
  border: 1px solid var(--border-tech);
  color: var(--cyan-primary);
  font-size: 0.7rem;
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(4px);
}

.product-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.product-meta {
  font-size: 0.8rem;
  color: var(--cyan-primary);
  font-weight: 600;
  margin-bottom: 12px;
}

.product-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.product-specs-list {
  list-style: none;
  border-top: 1px solid var(--border-subtle);
  padding-top: 14px;
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.product-specs-list li {
  display: flex;
  justify-content: space-between;
  font-size: 0.775rem;
}

.product-specs-list .spec-k {
  color: var(--text-muted);
}

.product-specs-list .spec-v {
  color: var(--text-primary);
  font-weight: 600;
}

/* ==========================================================================
   7. SECCIÓN DE INSTITUCIONES Y RED HOSPITALARIA
   ========================================================================== */
.section-network {
  background: #080E1A;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 80px 24px;
}

.network-container {
  max-width: 1440px;
  margin: 0 auto;
}

.network-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.network-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.network-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--violet-subtle);
  border: 1px solid rgba(124, 77, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #B388FF;
  flex-shrink: 0;
}

.network-card-icon svg {
  width: 20px;
  height: 20px;
}

.network-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 6px;
}

.network-card p {
  font-size: 0.825rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   8. FOOTER OBLIGATORIO Y AVISO DE AUTORÍA SIMCODEC
   ========================================================================== */
.site-footer {
  background: #04070D;
  border-top: 1px solid var(--border-subtle);
  padding: 60px 24px 30px;
  position: relative;
  z-index: 10;
}

.footer-inner {
  max-width: 1440px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-subtle);
}

.footer-col-about {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 380px;
}

.footer-col-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: #FFFFFF;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color var(--transition-fast);
}

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

.footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.footer-contact-item svg {
  color: var(--cyan-primary);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 3px;
}

/* Aviso de demostración en footer */
.footer-demo-notice {
  background: rgba(10, 18, 34, 0.7);
  border: 1px solid var(--border-tech);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-top: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-demo-notice__text {
  font-size: 0.825rem;
  color: var(--text-secondary);
}

.footer-demo-notice__text strong {
  color: #FFFFFF;
}

.footer-bottom {
  margin-top: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.775rem;
  color: var(--text-muted);
}

/* ==========================================================================
   9. RESPONSIVE DESIGN & MEDIA QUERIES
   ========================================================================== */
@media (max-width: 1024px) {
  .calc-container {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .hud-stats-grid {
    grid-template-columns: 1fr;
  }
  .hotspot-panel {
    right: 16px;
    left: 16px;
    max-width: none;
    top: auto;
    bottom: 80px;
  }
}

@media (max-width: 768px) {
  .site-header__inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .site-nav {
    display: none; /* Mobile view simplificada */
  }
  .site-header__actions {
    width: 100%;
    justify-content: space-between;
  }
  .demo-bar__inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .hud-heading {
    font-size: 1.8rem;
  }
  .hud-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .hud-controls-group {
    justify-content: center;
  }
  .hotspot-nav {
    justify-content: center;
  }
}