/* ==========================================================================
   SUMATEC 2026 — SISTEMA DE DISEÑO OFICIAL (MANUAL DE MARCA v1.0)
   Contraste Radical: Blanco (55%) · Negro #0A0A0A (30%) · Grises (10%) · Verde Lima #D5F11C (5%)
   Tipografía Corporativa: Inter Display & Inter
   Claim: Innovamos. Implementamos. Aceleramos.
   ========================================================================== */

:root {
  /* Paleta Cromática Oficial (Página 16 del Manual de Marca 2026) */
  --lime: #D5F11C;
  --lime-rgb: 213, 241, 28;
  --lime-hover: #c5df12;
  --lime-soft: rgba(213, 241, 28, 0.14);
  --lime-border: rgba(213, 241, 28, 0.45);

  --black: #0A0A0A;
  --black-rgb: 10, 10, 10;
  --black-elevated: #121212;
  --black-card: #161616;
  --black-border: #242424;

  --white: #FFFFFF;
  --gray-func: #666666;
  --gray-muted: #8E8E8E;
  --gray-light: #F2F2F2;
  --gray-border: #E4E4E4;

  /* Tipografía (Páginas 18-19 del Manual de Marca 2026) */
  --font-display: 'Inter Tight', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;

  /* Geometría y Layout */
  --container-max: 1320px;
  --header-height: 82px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-soft: 0 12px 36px -8px rgba(10, 10, 10, 0.07);
  --shadow-strong: 0 24px 60px -12px rgba(10, 10, 10, 0.16);
  --shadow-lime: 0 10px 30px -6px rgba(213, 241, 28, 0.38);
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--black);
  background-color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  selection-background-color: var(--lime);
}

::selection {
  background-color: var(--lime);
  color: var(--black);
}

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

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

/* ==========================================================================
   SISTEMA RETICULAR Y UTILIDADES ARQUITECTÓNICAS (Pág. 20 y 23 Manual)
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 2rem;
}

.section-pad {
  padding: 6.5rem 0;
  position: relative;
}

.section-pad-sm {
  padding: 4.5rem 0;
  position: relative;
}

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

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

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

/* Retícula arquitectónica sutil (permitida por Manual pág. 20) */
.grid-backdrop-light {
  background-image:
    linear-gradient(to right, rgba(10, 10, 10, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(10, 10, 10, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
}

.grid-backdrop-dark {
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
}

/* Símbolo Λ ampliado como recurso de fondo (Manual pág. 12 y 20) */
.lambda-watermark {
  position: absolute;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  opacity: 0.05;
}

/* Jerarquía Tipográfica Oficial (Página 19 del Manual) */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.42rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.eyebrow-light {
  background: var(--gray-light);
  color: var(--black);
  border: 1px solid var(--gray-border);
}

.eyebrow-dark {
  background: rgba(255, 255, 255, 0.07);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.eyebrow-lime {
  background: var(--lime);
  color: var(--black);
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--lime);
  display: inline-block;
  box-shadow: 0 0 0 3px rgba(213, 241, 28, 0.28);
}

.eyebrow-lime .eyebrow-dot {
  background-color: var(--black);
  box-shadow: none;
}

.h1-display {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.5rem, 4.8vw, 4.35rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
}

.h2-display {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.95rem, 3.4vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.h3-title {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: clamp(1.18rem, 1.6vw, 1.42rem);
  line-height: 1.3;
  letter-spacing: -0.015em;
}

.lead-text {
  font-size: clamp(1.05rem, 1.25vw, 1.2rem);
  line-height: 1.65;
  color: var(--gray-func);
}

.bg-black .lead-text {
  color: #B8B8B8;
}

.lime-underline {
  position: relative;
  display: inline-block;
}

.lime-underline::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0.06em;
  width: 100%;
  height: 0.22em;
  background-color: var(--lime);
  z-index: -1;
}

.bg-black .text-lime-accent {
  color: var(--lime);
}

.text-lime-box {
  background-color: var(--lime);
  color: var(--black);
  padding: 0 0.35rem;
  border-radius: 4px;
  display: inline-block;
}

/* ==========================================================================
   BOTONES Y LLAMADAS A LA ACCIÓN (Manual pág. 16, 19, 24)
   ========================================================================== */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.92rem 1.65rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-lime {
  background-color: var(--lime);
  color: var(--black);
  border: 1.5px solid var(--lime);
  font-weight: 700;
}

.btn-lime:hover {
  background-color: var(--lime-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lime);
}

.btn-black {
  background-color: var(--black);
  color: var(--white);
  border: 1.5px solid var(--black);
}

.btn-black:hover {
  background-color: #1F1F1F;
  border-color: var(--lime);
  color: var(--lime);
  transform: translateY(-2px);
}

.btn-outline-dark {
  background-color: transparent;
  color: var(--black);
  border: 1.5px solid var(--black);
}

.btn-outline-dark:hover {
  background-color: var(--black);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-outline-light {
  background-color: rgba(255, 255, 255, 0.04);
  color: var(--white);
  border: 1.5px solid rgba(255, 255, 255, 0.25);
}

.btn-outline-light:hover {
  border-color: var(--lime);
  color: var(--lime);
  background-color: rgba(213, 241, 28, 0.06);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.62rem 1.15rem;
  font-size: 0.86rem;
}

.btn-arrow {
  display: inline-flex;
  transition: transform 0.25s ease;
}

.btn:hover .btn-arrow {
  transform: translate(3px, -2px);
}

/* ==========================================================================
   CABECERA FIJA (STICKY HEADER) — Siempre visible (Word pág. 1 / Manual pág. 13)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--gray-border);
  transition: all 0.25s ease;
}

.site-header.scrolled {
  height: 70px;
  box-shadow: 0 8px 30px rgba(10, 10, 10, 0.06);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* Área de seguridad del logo (Manual pág. 13 y 14: Digital >= 180px) */
.brand-logo-link {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 0;
  flex-shrink: 0;
}

.brand-logo-img {
  width: 192px;
  height: auto;
  object-fit: contain;
  transition: transform 0.25s ease;
}

.brand-logo-link:hover .brand-logo-img {
  transform: scale(1.02);
}

/* Menú de Navegación por Pestañas (Manual pág. 24: verde lima en navegación activa) */
.main-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  background-color: var(--gray-light);
  padding: 0.32rem;
  border-radius: 999px;
  border: 1px solid var(--gray-border);
}

.nav-tab {
  position: relative;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.86rem;
  letter-spacing: 0.02em;
  color: var(--gray-func);
  padding: 0.52rem 1.2rem;
  border-radius: 999px;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-tab:hover {
  color: var(--black);
}

.nav-tab.active {
  background-color: var(--black);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(10, 10, 10, 0.16);
}

.nav-tab.active::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--lime);
  display: inline-block;
}

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

.btn-diagnostic-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.55rem 0.95rem;
  border-radius: var(--radius-sm);
  background: var(--gray-light);
  border: 1px solid var(--gray-border);
  color: var(--black);
  transition: var(--transition-fast);
}

.btn-diagnostic-trigger:hover {
  border-color: var(--black);
  background: var(--white);
}

.mobile-menu-btn {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--gray-border);
  align-items: center;
  justify-content: center;
  background: var(--white);
}

/* ==========================================================================
   SISTEMA DE VISTAS POR PESTAÑAS (TAB VIEWS)
   ========================================================================== */
.main-stage {
  padding-top: var(--header-height);
  min-height: calc(100vh - 300px);
}

.tab-panel {
  display: none;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.38s ease, transform 0.38s cubic-bezier(0.16, 1, 0.3, 1);
}

.tab-panel.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   PESTAÑA 1: INICIO — 01. HERO PRINCIPAL
   ========================================================================== */
.hero-home {
  position: relative;
  background-color: var(--black);
  color: var(--white);
  padding: 5.5rem 0 5rem;
  overflow: hidden;
  border-bottom: 4px solid var(--lime);
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.hero-home-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-claim-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.45rem 1rem;
  background: rgba(213, 241, 28, 0.1);
  border: 1px solid rgba(213, 241, 28, 0.38);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--lime);
  margin-bottom: 1.5rem;
}

.hero-home h1 {
  margin-bottom: 1.35rem;
}

.hero-home .lead-text {
  max-width: 600px;
  margin-bottom: 2rem;
  color: #CCCCCC;
}

/* Fórmula Interactiva SUMATEC (Manual pág. 4) */
.formula-bar {
  margin-top: 2.5rem;
  padding-top: 1.8rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.formula-label {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gray-muted);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.formula-pills {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
}

.formula-chip {
  padding: 0.42rem 0.85rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--white);
  transition: var(--transition-fast);
}

.formula-chip:hover,
.formula-chip.active {
  background: var(--lime);
  color: var(--black);
  border-color: var(--lime);
  transform: translateY(-2px);
}

.formula-plus {
  color: var(--lime);
  font-weight: 700;
  font-size: 0.9rem;
}

.formula-feedback {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: #BDBDBD;
  min-height: 1.4em;
}

/* Composición Visual Derecha del Hero */
.hero-visual-stage {
  position: relative;
}

.hero-visual-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: #0F0F0F;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.65);
}

.hero-visual-frame::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--lime);
  z-index: 3;
}

.hero-main-img {
  width: 100%;
  height: 430px;
  object-fit: cover;
  filter: contrast(1.06);
  transition: transform 0.6s ease;
}

.hero-visual-frame:hover .hero-main-img {
  transform: scale(1.03);
}

.hero-visual-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,10,10,0.1) 0%, rgba(10,10,10,0.88) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.75rem;
  z-index: 2;
}

/* Switcher de vista en el Hero (Composición IA vs Impacto Real en Campo) */
.hero-scene-switcher {
  position: absolute;
  top: 1.1rem;
  right: 1.1rem;
  z-index: 4;
  display: flex;
  gap: 0.35rem;
  background: rgba(10, 10, 10, 0.82);
  backdrop-filter: blur(10px);
  padding: 0.28rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.scene-btn {
  font-size: 0.73rem;
  font-weight: 600;
  padding: 0.32rem 0.72rem;
  border-radius: 999px;
  color: #CCCCCC;
  transition: var(--transition-fast);
}

.scene-btn.active {
  background: var(--lime);
  color: var(--black);
}

.hero-floating-badge {
  position: absolute;
  bottom: -1.25rem;
  left: -1.25rem;
  z-index: 5;
  background: var(--white);
  color: var(--black);
  padding: 1rem 1.35rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-strong);
  border-left: 5px solid var(--lime);
  display: flex;
  align-items: center;
  gap: 0.9rem;
  max-width: 310px;
}

.floating-badge-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--black);
  color: var(--lime);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-weight: 800;
  font-size: 1.2rem;
}

/* ==========================================================================
   PESTAÑA 1: 02. ¿QUÉ ES SUMATEC? + AUDIENCIAS (Manual pág. 4 y 5)
   ========================================================================== */
.essence-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 4rem;
  align-items: start;
}

.essence-quote-box {
  margin-top: 2rem;
  padding: 1.65rem;
  background: var(--gray-light);
  border-left: 4px solid var(--lime);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.audience-tabs-card {
  background: var(--black);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-strong);
  position: relative;
  overflow: hidden;
}

.audience-selector-nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
  margin-bottom: 1.6rem;
}

.aud-btn {
  text-align: left;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #CCCCCC;
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.aud-btn:hover {
  border-color: rgba(213, 241, 28, 0.5);
  color: var(--white);
}

.aud-btn.active {
  background: var(--lime);
  color: var(--black);
  border-color: var(--lime);
  font-weight: 700;
}

.aud-detail-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.aud-meta-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.15rem;
  padding-top: 1.15rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ==========================================================================
   PESTAÑA 1: 03. NUESTRAS SOLUCIONES (5 Tarjetas Interactivas)
   ========================================================================== */
.section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 3.25rem;
}

.section-header-center {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem;
}

.solutions-bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1.5rem;
}

.solution-card {
  grid-column: span 2;
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-md);
  padding: 2.1rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.solution-card:nth-child(4),
.solution-card:nth-child(5) {
  grid-column: span 3;
}

.solution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--black);
  transition: background 0.3s ease;
}

.solution-card:hover {
  transform: translateY(-6px);
  border-color: var(--black);
  box-shadow: var(--shadow-strong);
}

.solution-card:hover::before {
  background: var(--lime);
}

.sol-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--black);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: var(--transition-fast);
}

.solution-card:hover .sol-icon-wrap {
  background: var(--lime);
  color: var(--black);
}

.sol-number {
  position: absolute;
  top: 1.6rem;
  right: 1.75rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--gray-muted);
}

.sol-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1.4rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--gray-light);
}

.sol-tag {
  font-size: 0.74rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  background: var(--gray-light);
  border-radius: 4px;
  color: var(--black);
}

/* ==========================================================================
   PESTAÑA 1: 04. NUESTRA METODOLOGÍA (Timeline Interactivo 5 Etapas)
   ========================================================================== */
.method-timeline-wrap {
  background: var(--black);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 3rem;
  border: 1px solid var(--black-border);
}

.method-steps-bar {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  position: relative;
  margin-bottom: 2.5rem;
}

.method-step-btn {
  text-align: left;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition-fast);
  position: relative;
}

.method-step-btn:hover {
  border-color: rgba(213, 241, 28, 0.45);
  background: rgba(255, 255, 255, 0.07);
}

.method-step-btn.active {
  background: var(--lime);
  color: var(--black);
  border-color: var(--lime);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lime);
}

.step-num-badge {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.4rem;
  color: var(--lime);
}

.method-step-btn.active .step-num-badge {
  color: var(--black);
}

.step-name-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.method-active-Spotlight {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  align-items: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 2.25rem;
}

.method-deliverables-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  list-style: none;
}

.method-deliverables-list li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.92rem;
  color: #E0E0E0;
}

.method-deliverables-list li::before {
  content: 'Λ';
  font-weight: 800;
  color: var(--lime);
}

/* ==========================================================================
   PESTAÑA 1: 05. PROYECTOS DESTACADOS (Cards con Fotografías Reales)
   ========================================================================== */
.featured-projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.project-feature-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--gray-border);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  group: project;
}

.project-feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-strong);
  border-color: var(--black);
}

.project-img-box {
  position: relative;
  height: 270px;
  overflow: hidden;
  background: var(--black);
}

.project-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.55s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-feature-card:hover .project-img-box img {
  transform: scale(1.05);
}

.project-category-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--black);
  color: var(--lime);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.38rem 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(213, 241, 28, 0.4);
}

.project-card-body {
  padding: 1.85rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  justify-content: space-between;
}

/* ==========================================================================
   PESTAÑA 1: 06. EXPERIENCIA E IMPACTO (Contadores Animados - Manual pág. 19)
   ========================================================================== */
.impact-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.stat-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-top: 4px solid var(--lime);
  border-radius: var(--radius-md);
  padding: 2.2rem 1.75rem;
  transition: var(--transition-fast);
}

.stat-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-4px);
}

.stat-number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.6rem, 4vw, 3.6rem);
  line-height: 1;
  color: var(--lime);
  letter-spacing: -0.03em;
  margin-bottom: 0.65rem;
}

.stat-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
}

/* ==========================================================================
   PESTAÑA 1: 07. CONFÍAN EN NOSOTROS (17 Logos Oficiales - Manual pág. 28)
   ========================================================================== */
.partners-marquee-outer {
  overflow: hidden;
  position: relative;
  padding: 1rem 0;
  mask-image: linear-gradient(to right, transparent, black 7%, black 93%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 7%, black 93%, transparent);
}

.partners-marquee-track {
  display: flex;
  gap: 1.5rem;
  width: max-content;
  animation: scrollMarquee 42s linear infinite;
}

.partners-marquee-track:hover {
  animation-play-state: paused;
}

@keyframes scrollMarquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.partner-logo-tile {
  width: 200px;
  height: 96px;
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.35rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  flex-shrink: 0;
}

.partner-logo-tile:hover {
  border-color: var(--black);
  box-shadow: var(--shadow-soft);
  transform: translateY(-3px);
}

.partner-logo-tile img {
  max-height: 52px;
  max-width: 145px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(15%) contrast(1.05);
  transition: filter 0.25s ease, transform 0.25s ease;
}

.partner-logo-tile:hover img {
  filter: grayscale(0%) contrast(1.08);
  transform: scale(1.06);
}

.partners-grid-full {
  display: none;
  grid-template-columns: repeat(auto-fill, minmax(185px, 1fr));
  gap: 1.15rem;
  margin-top: 2rem;
}

.partners-grid-full.visible {
  display: grid;
}

.partners-grid-full .partner-logo-tile {
  width: 100%;
}

/* ==========================================================================
   PESTAÑA 2: NOSOTROS — DISEÑO REFERENCIA TRANSFORMADO AL MANUAL 2026
   ========================================================================== */
.hero-nosotros {
  background: var(--white);
  padding: 4.5rem 0 0;
  border-bottom: 1px solid var(--gray-border);
  position: relative;
  overflow: hidden;
}

.hero-nosotros-grid {
  display: grid;
  grid-template-columns: 1fr 1.08fr;
  gap: 3.5rem;
  align-items: center;
  padding-bottom: 4rem;
}

.nosotros-collage {
  position: relative;
  padding: 1.5rem;
}

.nosotros-main-photo {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 2px solid var(--black);
  box-shadow: var(--shadow-strong);
  position: relative;
}

.nosotros-main-photo img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.nosotros-float-card {
  position: absolute;
  background: var(--black);
  color: var(--white);
  padding: 1.15rem 1.35rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-strong);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.nosotros-float-left {
  left: -0.5rem;
  bottom: 2.5rem;
  border-left: 4px solid var(--lime);
  max-width: 210px;
}

.nosotros-float-right {
  right: -0.5rem;
  top: 2.2rem;
  border-top: 4px solid var(--lime);
  max-width: 205px;
}

/* Barra "Nuestras Esencias: Impacto real, desde la tecnología" (de image3.png) */
.esencias-strip {
  background: var(--gray-light);
  border-top: 1px solid var(--gray-border);
  padding: 2.75rem 0;
}

.esencias-strip-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 3rem;
  align-items: center;
}

.esencias-pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.esencia-pillar-item {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  text-align: center;
  transition: var(--transition-fast);
}

.esencia-pillar-item:hover {
  border-color: var(--black);
  transform: translateY(-3px);
}

.esencia-pillar-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--black);
  color: var(--lime);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
}

/* Misión y Visión */
.mv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.mv-card {
  padding: 2.75rem;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.mv-card-mission {
  background: var(--black);
  color: var(--white);
  border-bottom: 5px solid var(--lime);
}

.mv-card-vision {
  background: var(--white);
  color: var(--black);
  border: 2px solid var(--black);
}

/* Diagrama Circular / Orbital Interactivo en Nosotros */
.orbital-method-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.orbital-wheel-stage {
  position: relative;
  width: 390px;
  height: 390px;
  margin: 0 auto;
  border-radius: 50%;
  border: 1.5px dashed rgba(10, 10, 10, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
}

.orbital-core {
  width: 156px;
  height: 156px;
  border-radius: 50%;
  background: var(--black);
  color: var(--white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1rem;
  box-shadow: var(--shadow-strong);
  border: 3px solid var(--lime);
}

.orbital-node {
  position: absolute;
  width: 78px;
  height: 78px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--black);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.78rem;
  transition: var(--transition-fast);
  box-shadow: var(--shadow-soft);
}

.orbital-node:hover,
.orbital-node.active {
  background: var(--lime);
  color: var(--black);
  transform: scale(1.12);
  box-shadow: var(--shadow-lime);
}

/* Posiciones de los 5 nodos en pentágono */
.orbital-node[data-orbit="0"] { top: -39px; left: calc(50% - 39px); }
.orbital-node[data-orbit="1"] { top: 26%; right: -39px; }
.orbital-node[data-orbit="2"] { bottom: 6%; right: 8%; }
.orbital-node[data-orbit="3"] { bottom: 6%; left: 8%; }
.orbital-node[data-orbit="4"] { top: 26%; left: -39px; }

/* Equipo de SUMATEC + Tarjeta 3D Interactiva */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.team-card {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.team-card:hover {
  transform: translateY(-6px);
  border-color: var(--black);
  box-shadow: var(--shadow-strong);
}

.team-photo-wrap {
  height: 290px;
  background: var(--black);
  position: relative;
  overflow: hidden;
}

.team-photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.5s ease;
}

.team-card:hover .team-photo-wrap img {
  transform: scale(1.04);
}

.team-avatar-monogram {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 80% 20%, rgba(213, 241, 28, 0.18), transparent 45%),
    var(--black);
  color: var(--white);
  position: relative;
}

.monogram-letters {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 3.4rem;
  letter-spacing: -0.04em;
  color: var(--white);
  border: 2px solid var(--lime);
  width: 108px;
  height: 108px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.04);
}

.team-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex-grow: 1;
}

.team-role-tag {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-func);
  margin-bottom: 0.35rem;
}

/* ==========================================================================
   PESTAÑA 3: SERVICIOS — 4 VERTICALES ESTRATÉGICAS + DIAGNÓSTICO 360°
   ========================================================================== */
.verticals-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.vertical-card {
  background: var(--white);
  border: 1.5px solid var(--gray-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  transition: var(--transition-smooth);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.vertical-card:hover {
  border-color: var(--black);
  box-shadow: var(--shadow-strong);
  transform: translateY(-5px);
}

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

.vertical-code-pill {
  background: var(--black);
  color: var(--lime);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
}

.vertical-checklist {
  list-style: none;
  margin: 1.5rem 0;
  display: grid;
  gap: 0.65rem;
}

.vertical-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.92rem;
  color: var(--black);
}

.vertical-checklist li span.check-lambda {
  color: var(--black);
  background: var(--lime);
  font-weight: 800;
  font-size: 0.7rem;
  width: 20px;
  height: 20px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

/* Diagnóstico Interactivo 360° en Servicios */
.diagnostic-box {
  background: var(--black);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 3rem;
  border: 1px solid var(--black-border);
  position: relative;
  overflow: hidden;
}

.diag-options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.85rem;
  margin: 1.5rem 0;
}

.diag-option-btn {
  text-align: left;
  padding: 1.1rem 1.25rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--white);
  font-weight: 600;
  transition: var(--transition-fast);
}

.diag-option-btn:hover,
.diag-option-btn.selected {
  background: var(--lime);
  color: var(--black);
  border-color: var(--lime);
}

/* ==========================================================================
   PESTAÑA 4: PROYECTOS (PORTAFOLIO + FILTROS + INCUBACIÓN)
   ========================================================================== */
.portfolio-filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2.5rem;
  padding: 1rem 1.25rem;
  background: var(--gray-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-border);
}

.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.filter-btn {
  padding: 0.5rem 1.05rem;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--gray-func);
  background: var(--white);
  border: 1px solid var(--gray-border);
  transition: var(--transition-fast);
}

.filter-btn:hover {
  color: var(--black);
  border-color: var(--black);
}

.filter-btn.active {
  background: var(--black);
  color: var(--lime);
  border-color: var(--black);
}

.portfolio-search-input {
  background: var(--white);
  border: 1px solid var(--gray-border);
  padding: 0.55rem 1rem;
  border-radius: 999px;
  font-size: 0.88rem;
  min-width: 250px;
  outline: none;
}

.portfolio-search-input:focus {
  border-color: var(--black);
}

/* Casos Recientes Flagship (4 programas principales con foto real) */
.flagship-cases-list {
  display: grid;
  gap: 2.25rem;
  margin-bottom: 4rem;
}

.flagship-case-card {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  background: var(--white);
  border: 1.5px solid var(--gray-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.flagship-case-card:hover {
  border-color: var(--black);
  box-shadow: var(--shadow-strong);
}

.flagship-media {
  position: relative;
  min-height: 340px;
  background: var(--black);
  overflow: hidden;
}

.flagship-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.flagship-case-card:hover .flagship-media img {
  transform: scale(1.04);
}

.flagship-content {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.case-impact-box {
  margin: 1.25rem 0;
  padding: 1rem 1.25rem;
  background: var(--gray-light);
  border-left: 4px solid var(--lime);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.92rem;
}

/* Grid de Portafolio Histórico (13 Proyectos del Doc) */
.archive-projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.archive-card {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-fast);
}

.archive-card:hover {
  border-color: var(--black);
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

/* Incubación y Aceleración */
.incubation-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.venture-card {
  background: var(--white);
  border: 1.5px solid var(--gray-border);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  text-align: center;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
}

.venture-card:hover {
  border-color: var(--black);
  transform: translateY(-6px);
  box-shadow: var(--shadow-strong);
}

.venture-logo-box {
  width: 140px;
  height: 140px;
  border-radius: var(--radius-md);
  background: var(--gray-light);
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  border: 1px solid var(--gray-border);
}

.venture-logo-box img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* ==========================================================================
   PESTAÑA 5: CONTACTO — FORMULARIO E INFORMACIÓN OFICIAL
   ========================================================================== */
.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3.5rem;
  align-items: start;
}

.contact-info-panel {
  background: var(--black);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.75rem;
  border-bottom: 5px solid var(--lime);
}

.contact-channel-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.channel-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: rgba(213, 241, 28, 0.12);
  color: var(--lime);
  border: 1px solid rgba(213, 241, 28, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-form-card {
  background: var(--white);
  border: 1.5px solid var(--gray-border);
  border-radius: var(--radius-lg);
  padding: 2.75rem;
  box-shadow: var(--shadow-soft);
}

.form-row {
  margin-bottom: 1.35rem;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.86rem;
  font-weight: 600;
  margin-bottom: 0.45rem;
  color: var(--black);
}

.form-control {
  width: 100%;
  padding: 0.88rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--gray-border);
  background: var(--gray-light);
  font-size: 0.95rem;
  color: var(--black);
  transition: var(--transition-fast);
  outline: none;
}

.form-control:focus {
  background: var(--white);
  border-color: var(--black);
  box-shadow: 0 0 0 3px rgba(213, 241, 28, 0.35);
}

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

.need-chips-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.65rem;
}

.need-chip {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.38rem 0.8rem;
  border-radius: 999px;
  background: var(--gray-light);
  border: 1px solid var(--gray-border);
  transition: var(--transition-fast);
}

.need-chip.active,
.need-chip:hover {
  background: var(--black);
  color: var(--lime);
  border-color: var(--black);
}

/* ==========================================================================
   PIE DE PÁGINA (FOOTER) — Siempre visible abajo (Word pág. 10)
   ========================================================================== */
.site-footer {
  background: var(--black);
  color: var(--white);
  border-top: 4px solid var(--lime);
  padding: 4.5rem 0 2.25rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.8fr 0.9fr 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-logo {
  width: 195px;
  height: auto;
  margin-bottom: 1rem;
}

.footer-heading {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--lime);
  margin-bottom: 1.15rem;
}

.footer-links {
  list-style: none;
  display: grid;
  gap: 0.6rem;
}

.footer-links a,
.footer-links button {
  font-size: 0.92rem;
  color: #BDBDBD;
  transition: color 0.2s ease;
  text-align: left;
}

.footer-links a:hover,
.footer-links button:hover {
  color: var(--lime);
}

.social-links-row {
  display: flex;
  gap: 0.65rem;
  margin-top: 1.25rem;
}

.social-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.social-btn:hover {
  background: var(--lime);
  color: var(--black);
  border-color: var(--lime);
  transform: translateY(-2px);
}

.footer-bottom {
  padding-top: 1.75rem;
  padding-right: 195px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.84rem;
  color: #8E8E8E;
}

/* ==========================================================================
   MODALES INTERACTIVOS (CASOS DE ESTUDIO, TARJETA 3D, PRIVACIDAD)
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.82);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-backdrop.open {
  display: flex;
}

.modal-window {
  background: var(--white);
  color: var(--black);
  width: 100%;
  max-width: 820px;
  max-height: 90vh;
  overflow-y: auto;
  border-radius: var(--radius-lg);
  border-top: 5px solid var(--lime);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.5);
  position: relative;
  padding: 2.5rem;
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--gray-light);
  color: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--black);
  color: var(--lime);
}

/* Tarjeta de Presentación 3D Flippable (Página 26 Manual de Marca) */
.bcard-scene {
  perspective: 1200px;
  width: 100%;
  max-width: 520px;
  height: 300px;
  margin: 1.5rem auto;
  cursor: pointer;
}

.bcard-flipper {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
}

.bcard-scene.flipped .bcard-flipper {
  transform: rotateY(180deg);
}

.bcard-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 24px 50px rgba(0,0,0,0.28);
}

.bcard-front {
  background: var(--white);
  border: 1px solid var(--gray-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
}

.bcard-back {
  background: var(--black);
  color: var(--white);
  transform: rotateY(180deg);
  padding: 2rem;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  position: relative;
}

/* Botón Flotante WhatsApp */
.floating-wa {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 990;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  background: var(--black);
  color: var(--white);
  border: 2px solid var(--lime);
  padding: 0.75rem 1.2rem;
  border-radius: 999px;
  box-shadow: var(--shadow-strong);
  font-weight: 700;
  font-size: 0.86rem;
  transition: var(--transition-fast);
}

.floating-wa:hover {
  background: var(--lime);
  color: var(--black);
  transform: translateY(-3px);
}

/* ==========================================================================
   RESPONSIVE DESIGN (TABLET & MOBILE)
   ========================================================================== */
@media (max-width: 1080px) {
  .hero-home-grid,
  .essence-grid,
  .hero-nosotros-grid,
  .esencias-strip-grid,
  .orbital-method-grid,
  .flagship-case-card,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .solutions-bento {
    grid-template-columns: repeat(2, 1fr);
  }
  .solution-card,
  .solution-card:nth-child(4),
  .solution-card:nth-child(5) {
    grid-column: span 1;
  }

  .method-steps-bar {
    grid-template-columns: repeat(2, 1fr);
  }
  .method-active-Spotlight {
    grid-template-columns: 1fr;
  }

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

  .team-grid,
  .archive-projects-grid,
  .incubation-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 820px) {
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    border-radius: 0;
    border-bottom: 2px solid var(--black);
    box-shadow: var(--shadow-strong);
    display: none;
  }

  .main-nav.mobile-open {
    display: flex;
  }

  .mobile-menu-btn {
    display: inline-flex;
  }

  .btn-diagnostic-trigger {
    display: none;
  }

  .solutions-bento,
  .featured-projects-grid,
  .verticals-grid,
  .mv-grid,
  .team-grid,
  .archive-projects-grid,
  .incubation-grid,
  .form-grid-2,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .orbital-wheel-stage {
    width: 300px;
    height: 300px;
  }
}