:root {
  --bg-black: #000000;
  --surface-1: #09090b;
  --surface-2: #121215;
  --surface-3: #18181b;
  --border-dim: #27272a;
  --border-bright: #52525b;
  --white: #ffffff;
  --gray-100: #f4f4f5;
  --gray-200: #e4e4e7;
  --gray-300: #d4d4d8;
  --gray-400: #a1a1aa;
  --gray-500: #71717a;
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-black);
  color: var(--white);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-black);
  color: var(--gray-200);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Grilla técnica de fondo */
.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 50% 25%, #000 45%, transparent 95%);
}

.particles-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.tech-particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: rgba(255, 255, 255, 0.35);
  border-radius: 50%;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* ==========================================
   TOPBAR & NAVEGACIÓN DE SOLAPAS
   ========================================== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(0, 0, 0, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-dim);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--white);
}

.brand-mark {
  width: 38px;
  height: 38px;
  border: 1.5px solid var(--white);
  background: var(--surface-1);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}

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

.brand-name {
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.08em;
}

.brand-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--gray-400);
  letter-spacing: 0.12em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--surface-1);
  border: 1px solid var(--border-dim);
  padding: 0.3rem;
  border-radius: 10px;
}

.nav-tab {
  background: transparent;
  color: var(--gray-400);
  border: 1px solid transparent;
  padding: 0.55rem 1rem;
  border-radius: 7px;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  transition: all 0.2s ease;
}

.nav-tab:hover {
  color: var(--white);
  background: var(--surface-2);
}

.nav-tab.active {
  background: var(--white);
  color: var(--bg-black);
  border-color: var(--white);
}

.tab-index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  opacity: 0.7;
}

.tab-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  border: 1px solid currentColor;
  opacity: 0.85;
}

/* ==========================================
   BOTONES Y ETIQUETAS MONOCROMÁTICAS
   ========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.4rem;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.22s ease;
  border: 1px solid transparent;
  font-family: var(--font-sans);
}

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

.btn-primary:hover {
  background: var(--gray-200);
  transform: translateY(-2px);
  box-shadow: 0 0 24px rgba(255, 255, 255, 0.22);
}

.btn-outline {
  background: var(--surface-1);
  color: var(--white);
  border-color: var(--border-bright);
}

.btn-outline:hover {
  border-color: var(--white);
  background: var(--surface-3);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--gray-300);
  border-color: var(--border-dim);
}

.btn-ghost:hover {
  color: var(--white);
  border-color: var(--gray-400);
}

.btn-sm {
  padding: 0.6rem 1.05rem;
  font-size: 0.82rem;
}

.btn-block {
  width: 100%;
}

.mono-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gray-400);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: inline-block;
}

/* ==========================================
   SOLAPAS / PANELES
   ========================================== */
.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

/* ==========================================
   HERO PRINCIPAL
   ========================================== */
.hero-section {
  padding: 4.5rem 1.5rem 3.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.tech-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.9rem;
  background: var(--surface-1);
  border: 1px solid var(--border-bright);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gray-200);
  letter-spacing: 0.08em;
  margin-bottom: 1.4rem;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--white);
  box-shadow: 0 0 10px var(--white);
}

.hero-title {
  font-size: clamp(2.1rem, 4vw, 3.35rem);
  line-height: 1.12;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.text-highlight {
  color: var(--white);
  text-decoration: underline;
  text-decoration-color: var(--gray-400);
  text-underline-offset: 6px;
}

.hero-description {
  font-size: 1.08rem;
  color: var(--gray-300);
  margin-bottom: 2rem;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 2.5rem;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-dim);
}

.metric-box {
  display: flex;
  flex-direction: column;
}

.metric-val {
  font-family: var(--font-mono);
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--white);
}

.metric-label {
  font-size: 0.78rem;
  color: var(--gray-400);
}

.visual-frame {
  background: var(--surface-1);
  border: 1px solid var(--border-bright);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(255, 255, 255, 0.05);
}

.frame-header,
.frame-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border-dim);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gray-400);
}

.frame-footer {
  border-bottom: none;
  border-top: 1px solid var(--border-dim);
}

.frame-dots {
  display: flex;
  gap: 5px;
}

.frame-dots i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid var(--gray-400);
  display: inline-block;
}

.hero-img {
  width: 100%;
  height: auto;
  display: block;
  filter: grayscale(100%) contrast(1.08);
}

/* ==========================================
   BARRA DE LOGOS DE MODELOS DE IA
   ========================================== */
.models-strip {
  border-top: 1px solid var(--border-dim);
  border-bottom: 1px solid var(--border-dim);
  background: var(--surface-1);
  padding: 2.25rem 0;
}

.models-header {
  text-align: center;
  margin-bottom: 1.35rem;
}

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

.model-card {
  background: var(--bg-black);
  border: 1px solid var(--border-dim);
  border-radius: 12px;
  padding: 0.35rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.model-card:hover {
  border-color: var(--white);
  transform: translateY(-3px);
}

.model-card img {
  width: 100%;
  max-width: 210px;
  height: auto;
  display: block;
}

/* ==========================================
   SECCIONES Y GRILLA DE SERVICIOS
   ========================================== */
.section {
  padding: 4.5rem 1.5rem;
}

.section-header {
  max-width: 760px;
  margin-bottom: 2.75rem;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  color: var(--white);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0.5rem 0 0.75rem;
}

.section-subtitle {
  color: var(--gray-300);
  font-size: 1rem;
}

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

.service-card {
  grid-column: span 2;
  background: var(--surface-1);
  border: 1px solid var(--border-dim);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.service-card.featured {
  grid-column: span 3;
}

.service-card:hover {
  border-color: var(--gray-300);
  transform: translateY(-4px);
}

.service-media {
  position: relative;
  border-bottom: 1px solid var(--border-dim);
  background: var(--bg-black);
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.service-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.06);
  transition: transform 0.4s ease;
}

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

.service-tag {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  background: rgba(0, 0, 0, 0.85);
  border: 1px solid var(--border-bright);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  letter-spacing: 0.08em;
}

.service-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.service-body h3 {
  font-size: 1.25rem;
  color: var(--white);
  margin-bottom: 0.65rem;
}

.service-body p {
  color: var(--gray-300);
  font-size: 0.94rem;
  margin-bottom: 1.2rem;
  flex: 1;
}

.service-features {
  list-style: none;
  margin-bottom: 1.4rem;
  border-top: 1px solid var(--border-dim);
  padding-top: 1rem;
}

.service-features li {
  font-size: 0.86rem;
  color: var(--gray-200);
  margin-bottom: 0.45rem;
  padding-left: 1.1rem;
  position: relative;
}

.service-features li::before {
  content: '>';
  position: absolute;
  left: 0;
  font-family: var(--font-mono);
  color: var(--white);
}

/* ==========================================
   SECCIÓN DE CONTACTO (MYSQL + WHATSAPP)
   ========================================== */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 2.5rem;
  background: var(--surface-1);
  border: 1px solid var(--border-bright);
  border-radius: 16px;
  padding: 2.5rem;
}

.contact-info h2 {
  font-size: 2rem;
  color: var(--white);
  margin: 0.5rem 0 1rem;
  line-height: 1.2;
}

.contact-info p {
  color: var(--gray-300);
  margin-bottom: 1.75rem;
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.channel-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem;
  background: var(--bg-black);
  border: 1px solid var(--border-dim);
  border-radius: 10px;
  text-decoration: none;
  color: var(--white);
  transition: border-color 0.2s ease;
}

.channel-card:hover {
  border-color: var(--white);
}

.channel-icon {
  width: 44px;
  height: 44px;
  border: 1px solid var(--white);
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.channel-card strong {
  display: block;
  font-size: 0.95rem;
}

.channel-card span {
  font-size: 0.82rem;
  color: var(--gray-400);
}

.contact-form {
  background: var(--bg-black);
  border: 1px solid var(--border-dim);
  border-radius: 12px;
  padding: 1.75rem;
}

.form-header {
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-dim);
}

.form-group {
  margin-bottom: 1.1rem;
}

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

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gray-200);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--surface-1);
  border: 1px solid var(--border-bright);
  border-radius: 7px;
  padding: 0.75rem 0.9rem;
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 0.92rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--white);
  background: var(--surface-2);
}

.form-feedback {
  margin-top: 0.85rem;
  font-size: 0.88rem;
  color: var(--gray-200);
}

/* ==========================================
   SOLAPA 02: ESCUELA IA (BYTECODERS)
   ========================================== */
.school-hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
  background: var(--surface-1);
  border: 1px solid var(--border-bright);
  border-radius: 16px;
  padding: 2.5rem;
  margin-bottom: 2.5rem;
}

.school-hero h1 {
  font-size: clamp(1.85rem, 3.2vw, 2.75rem);
  color: var(--white);
  line-height: 1.15;
  margin: 0.6rem 0 1rem;
}

.school-hero p {
  color: var(--gray-300);
  margin-bottom: 1.5rem;
}

.school-hero-media img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--border-dim);
  filter: grayscale(100%);
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.pillar-card {
  background: var(--surface-1);
  border: 1px solid var(--border-dim);
  border-radius: 12px;
  padding: 1.6rem;
}

.pillar-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--bg-black);
  background: var(--white);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  font-weight: 700;
  display: inline-block;
  margin-bottom: 0.85rem;
}

.pillar-card h3 {
  color: var(--white);
  margin-bottom: 0.5rem;
}

.pillar-card p {
  color: var(--gray-300);
  font-size: 0.92rem;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.course-card {
  background: var(--surface-1);
  border: 1px solid var(--border-dim);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.course-card-body {
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.course-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gray-400);
}

.course-card h3 {
  font-size: 1.3rem;
  color: var(--white);
  margin-bottom: 0.65rem;
}

.course-tools {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-dim);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gray-300);
}

/* ==========================================
   SOLAPA 03: BLOG IA (NOTEBOOKLM + YOUTUBE)
   ========================================== */
.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.filter-chip {
  background: var(--surface-1);
  color: var(--gray-300);
  border: 1px solid var(--border-dim);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-chip.active,
.filter-chip:hover {
  background: var(--white);
  color: var(--bg-black);
  border-color: var(--white);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.blog-card {
  background: var(--surface-1);
  border: 1px solid var(--border-dim);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.blog-card:hover {
  border-color: var(--white);
  transform: translateY(-4px);
}

.blog-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.blog-card-body h3 {
  color: var(--white);
  font-size: 1.18rem;
  margin: 0.5rem 0 0.7rem;
}

.blog-card-body p {
  color: var(--gray-300);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
  flex: 1;
}

.blog-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

/* ==========================================
   VENTANA DE LECTURA DE BLOG Y SIDEBAR DERECHO
   ========================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(10px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 100;
}

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

.modal-card {
  background: var(--surface-1);
  border: 1px solid var(--white);
  border-radius: 14px;
  max-width: 760px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2rem;
}

.modal-card.blog-reader-window {
  max-width: 1180px;
  padding: 2rem 2.25rem;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border-dim);
}

.modal-close-btn {
  background: transparent;
  border: 1px solid var(--border-bright);
  color: var(--white);
  width: 36px;
  height: 36px;
  border-radius: 6px;
  font-size: 1.35rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.blog-reader-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: 2.25rem;
  align-items: start;
}

.blog-reader-main h2 {
  color: var(--white);
  font-size: clamp(1.6rem, 2.6vw, 2.25rem);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.modal-lead {
  color: var(--gray-200);
  background: var(--bg-black);
  border-left: 3px solid var(--white);
  padding: 1rem 1.25rem;
  border-radius: 0 8px 8px 0;
  font-size: 0.96rem;
  margin-bottom: 1.5rem;
  white-space: pre-line;
}

.modal-video-box {
  margin-bottom: 1.75rem;
}

.video-embed {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--border-bright);
  border-radius: 10px;
  display: block;
  background: var(--bg-black);
}

.modal-text {
  color: var(--gray-200);
  font-size: 1rem;
  line-height: 1.8;
}

.modal-text h3 {
  color: var(--white);
  font-size: 1.35rem;
  margin: 2rem 0 0.85rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border-dim);
}

.modal-text h4 {
  color: var(--white);
  font-size: 1.12rem;
  margin: 1.5rem 0 0.65rem;
}

.modal-text p {
  margin-bottom: 1.1rem;
  color: var(--gray-300);
}

.modal-text blockquote {
  margin: 1.4rem 0;
  padding: 1rem 1.25rem;
  background: var(--bg-black);
  border: 1px solid var(--border-bright);
  border-left: 3px solid var(--white);
  border-radius: 8px;
  color: var(--white);
  font-style: italic;
}

.modal-text ul,
.modal-text ol.article-ol {
  margin: 0.85rem 0 1.35rem 1.4rem;
}

.modal-text li {
  margin-bottom: 0.55rem;
  color: var(--gray-200);
}

.table-container {
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid var(--border-bright);
  border-radius: 8px;
  background: var(--bg-black);
}

.tech-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}

.tech-table th {
  background: var(--surface-2);
  color: var(--white);
  padding: 0.85rem 1rem;
  font-weight: 700;
  border-bottom: 1px solid var(--border-bright);
  white-space: nowrap;
}

.tech-table td {
  padding: 0.8rem 1rem;
  color: var(--gray-300);
  border-bottom: 1px solid var(--border-dim);
  vertical-align: top;
}

.tech-table tr:last-child td {
  border-bottom: none;
}

.tech-table tr:hover td {
  background: rgba(255, 255, 255, 0.03);
  color: var(--white);
}

/* Sidebar derecho compartido (vacío por el momento) */
.blog-reader-sidebar {
  min-height: 420px;
  background: var(--bg-black);
  border: 1px solid var(--border-dim);
  border-radius: 12px;
  padding: 1.25rem;
  position: sticky;
  top: 1rem;
}

/* ==========================================
   BOTÓN FLOTANTE WHATSAPP & FOOTER
   ========================================== */
.floating-wa {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 60;
  background: var(--white);
  color: var(--bg-black);
  border: 1px solid var(--white);
  padding: 0.75rem 1.2rem;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.86rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
  transition: transform 0.2s ease;
}

.floating-wa:hover {
  transform: scale(1.05);
}

.wa-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bg-black);
}

.site-footer {
  border-top: 1px solid var(--border-dim);
  background: var(--surface-1);
  padding: 2rem 0;
  margin-top: 3rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.footer-brand strong {
  color: var(--white);
  letter-spacing: 0.06em;
}

.footer-brand span {
  font-size: 0.82rem;
  color: var(--gray-400);
}

.footer-telemetry {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.4rem 0.85rem;
  background: var(--bg-black);
  border: 1px solid var(--border-dim);
  border-radius: 999px;
}

.telemetry-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gray-400);
}

.telemetry-dot.online {
  background: var(--white);
  box-shadow: 0 0 8px var(--white);
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 980px) {
  .hero-grid,
  .school-hero,
  .contact-wrapper,
  .blog-reader-layout {
    grid-template-columns: 1fr;
  }

  .blog-reader-sidebar {
    min-height: 160px;
    position: static;
  }

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

  .services-bento {
    grid-template-columns: 1fr;
  }

  .service-card,
  .service-card.featured {
    grid-column: span 1;
  }

  .pillars-grid,
  .courses-grid,
  .blog-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .models-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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