/* =====================================================================
   ZIDANG · ZINODES — Style Sheet
   Tema OSCURO único + Partículas globales
   ===================================================================== */

/* ─── VARIABLES (tema oscuro) ────────────────────────────────────────── */
:root {
  /* Colores */
  --bg:        #070d1a;
  --bg-2:      #0d1525;
  --bg-3:      #111c30;
  --bg-card:   #131f34;
  --bg-card-h: #1a2940;
  --bg-glass:  rgba(19, 31, 52, 0.7);

  --text:      #f1f5f9;
  --text-2:    #cbd5e1;
  --text-3:    #94a3b8;

  --border:       rgba(255,255,255,0.07);
  --border-acc:   rgba(4,107,210,0.45);
  --shadow:       0 4px 24px rgba(0,0,0,0.35);
  --shadow-h:     0 8px 40px rgba(4,107,210,0.22);
  --glow:         0 0 28px rgba(4,107,210,0.35);

  --nav-bg:      rgba(7,13,26,0.92);
  --nav-text:    #f1f5f9;
  --nav-border:  rgba(255,255,255,0.06);

  --step-n:      rgba(4,107,210,0.15);
  --step-icon:   rgba(4,107,210,0.2);
  --tag-bg:      rgba(4,107,210,0.18);
  --tag-text:    #60a5fa;

  /* Acentos */
  --accent:     #046bd2;
  --accent-d:   #035aa8;
  --accent-2:   #00b4d8;
  --gradient:   linear-gradient(135deg, #046bd2 0%, #00b4d8 100%);
  --grad-text:  linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);

  /* Radios */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 18px;
  --r-xl: 28px;
  --r-full: 9999px;

  /* Layout */
  --max-w: 1400px;
  --font:  'Inter', system-ui, -apple-system, sans-serif;

  /* Transiciones */
  --t: 0.3s ease;
  --t-fast: 0.15s ease;
}

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

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* ─── CANVAS PARTÍCULAS GLOBAL ────────────────────────────────────────── */
#particles-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  opacity: 1;
}

/* ─── BARRA DE PROGRESO ──────────────────────────────────────────────── */
#progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: var(--gradient);
  z-index: 10000;
  border-radius: 0 2px 2px 0;
  transition: width 0.08s linear;
}

/* ─── UTILIDADES ─────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}

.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: var(--r-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--tag-bg);
  color: var(--tag-text);
  border: 1px solid var(--border-acc);
}

/* ─── REVEAL ANIMATION ───────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── BOTONES ─────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--r-full);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--t);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: var(--glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-h);
  filter: brightness(1.1);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(4,107,210,0.06);
}

/* ─── NAVBAR ─────────────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; width: 100%;
  z-index: 1000;
  padding: 0;
  transition: background-color var(--t), box-shadow var(--t), border-bottom var(--t);
}
.navbar:not(.scrolled) {
  background: transparent;
  border-bottom: 1px solid transparent;
}
.navbar.scrolled {
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: var(--shadow);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

.brand { display: flex; align-items: center; gap: 12px; z-index: 2; }
.logo-img { height: 48px; width: auto; }
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.brand-name {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}
.brand-tagline {
  font-size: 1.0rem;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.navbar:not(.scrolled) .brand-name,
.navbar:not(.scrolled) .brand-tagline { color: rgba(255,255,255,0.9); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  padding: 8px 14px;
  border-radius: var(--r-full);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--nav-text);
  transition: background-color var(--t-fast), color var(--t-fast);
}
.nav-link:hover { background: rgba(4,107,210,0.1); color: var(--accent); }

.nav-cta {
  background: var(--gradient);
  color: #fff !important;
  padding: 8px 18px;
  margin-left: 4px;
}
.nav-cta:hover { filter: brightness(1.1); background: var(--gradient) !important; }

/* Navbar no scrolled siempre sobre fondo oscuro del hero */
.navbar:not(.scrolled) .nav-link { color: rgba(255,255,255,0.85); }
.navbar:not(.scrolled) .nav-link:hover { background: rgba(255,255,255,0.1); color: #fff; }

/* Hamburguesa */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 3;
}
.menu-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--t-fast);
}
.navbar:not(.scrolled) .menu-toggle span { background: rgba(255,255,255,0.85); }

/* ─── HERO ────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 1;
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding-top: 110px;
  padding-bottom: 60px;
}

/* Lado izquierdo */
.hero-content { display: flex; flex-direction: column; gap: 24px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 6px 14px;
  border-radius: var(--r-full);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  background: rgba(4,107,210,0.18);
  border: 1px solid rgba(4,107,210,0.4);
  color: #93c5fd;
}
.badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 8px #4ade80;
  animation: pulse-green 2s ease-in-out infinite;
}
@keyframes pulse-green {
  0%,100% { box-shadow: 0 0 6px #4ade80; opacity: 1; }
  50%      { box-shadow: 0 0 14px #4ade80; opacity: 0.7; }
}

.hero-title {
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: #fff;
}

.hero-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.65);
  max-width: 480px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 4px;
}

/* ─── MOCKUP DASHBOARD (mejorado) ─────────────────────────────────────── */
.hero-mockup {
  animation: float 4s ease-in-out infinite;
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%     { transform: translateY(-10px); }
}

.mockup-window {
  background: rgba(13,21,37,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05);
}

.mockup-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(0,0,0,0.3);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-red    { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green  { background: #22c55e; }
.mockup-title-text {
  flex: 1;
  font-size: 0.7rem;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
  text-align: center;
  margin-left: -26px;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.mockup-live {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.62rem;
  font-weight: 700;
  color: #4ade80;
  letter-spacing: 0.05em;
}
.live-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #4ade80;
  animation: pulse-green 1.4s ease-in-out infinite;
}

.mockup-body { padding: 14px; display: flex; flex-direction: column; gap: 12px; }

/* Grid rows */
.mockup-grid-row { display: grid; gap: 10px; }
.mockup-grid-row:nth-child(1) { grid-template-columns: repeat(4, 1fr); }
.mockup-grid-row.row-chart { grid-template-columns: 1fr; }
.mockup-grid-row.row-controls { grid-template-columns: 1fr; }

/* Métricas */
.metric-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--r-md);
  padding: 10px 9px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.metric-icon {
  font-size: 1.3rem;
  line-height: 1;
  margin-bottom: 2px;
  opacity: 0.8;
}
.metric-value {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}
.metric-label {
  font-size: 0.62rem;
  color: rgba(255,255,255,0.45);
  margin: 2px 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.metric-bar {
  height: 3px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  overflow: hidden;
}
.metric-fill {
  height: 100%;
  width: var(--pct, 0%);
  background: var(--gradient);
  border-radius: 2px;
}
.metric-fill.metric-warn { background: linear-gradient(90deg, #f59e0b, #ef4444); }

/* Widget Chart */
.widget-chart {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--r-md);
  padding: 10px;
}
.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.chart-label {
  font-size: 0.62rem;
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.chart-update {
  font-size: 0.6rem;
  color: var(--accent-2);
  font-weight: 600;
}
.chart-viewport {
  overflow: hidden;
  border-radius: var(--r-sm);
  height: 90px;
  background: rgba(0,0,0,0.25);
  border: 1px solid rgba(255,255,255,0.06);
  position: relative;
}
.chart-svg {
  width: 200%;
  height: 100%;
  animation: scroll-wave 5s linear infinite;
}
@keyframes scroll-wave {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
.chart-area, .chart-area-2 { fill: url(#waveGrad1); }
.chart-line {
  fill: none;
  stroke: #046bd2;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.chart-line-2 { stroke: #00b4d8; stroke-width: 1.5; }
.chart-legend {
  display: flex;
  gap: 12px;
  margin-top: 6px;
  justify-content: center;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.6rem;
  color: rgba(255,255,255,0.55);
}
.legend-dot { width: 6px; height: 6px; border-radius: 50%; }
.legend-blue { background: #046bd2; }
.legend-cyan { background: #00b4d8; }

/* Widget Controls */
.widget-controls {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--r-md);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.control-header {
  font-size: 0.65rem;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 2px;
}
.control-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  background: rgba(0,0,0,0.15);
  border-radius: var(--r-sm);
}
.control-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2px;
}
.control-name {
  font-size: 0.7rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
}
.control-status {
  font-size: 0.58rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 10px;
  letter-spacing: 0.05em;
}
.status-on {
  background: rgba(34,197,94,0.2);
  color: #4ade80;
}
.status-off {
  background: rgba(148,163,184,0.15);
  color: rgba(255,255,255,0.4);
}
.control-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.toggle-switch {
  width: 36px;
  height: 18px;
  background: rgba(255,255,255,0.1);
  border-radius: 10px;
  position: relative;
  cursor: pointer;
  transition: background 0.2s;
}
.toggle-on { background: #22c55e; }
.toggle-handle {
  width: 14px;
  height: 14px;
  background: #fff;
  border-radius: 50%;
  position: absolute;
  top: 2px;
  left: 2px;
  transition: left 0.2s;
}
.toggle-on .toggle-handle { left: 20px; }
.control-value {
  font-size: 0.72rem;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
}

/* Nodos */
.mockup-nodes { display: flex; flex-direction: column; gap: 6px; }
.node-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: var(--r-sm);
  background: rgba(255,255,255,0.04);
  font-size: 0.68rem;
}
.node-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.node-ok .node-dot  { background: #22c55e; box-shadow: 0 0 6px #22c55e; }
.node-warn .node-dot{ background: #f59e0b; box-shadow: 0 0 6px #f59e0b; }
.node-name { flex: 1; color: rgba(255,255,255,0.7); }
.node-ok   .node-status { font-weight: 600; color: #4ade80; }
.node-warn .node-status { font-weight: 600; color: #fbbf24; }
.node-ping { font-size: 0.62rem; color: rgba(255,255,255,0.35); font-family: monospace; }

/* Scroll hint - eliminado */

/* ─── SECCIONES BASE ─────────────────────────────────────────────────── */
.section       { padding: 100px 0; position: relative; z-index: 1; }
.section-alt   { }
.section-contact { }

.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header .tag { margin-bottom: 14px; }
.section-header h2   { margin-bottom: 14px; }
.section-lead {
  font-size: 1.05rem;
  color: var(--text-3);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text);
}

/* ─── SPLIT LAYOUT (¿Qué es?) ────────────────────────────────────────── */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.split-text { display: flex; flex-direction: column; gap: 20px; }
.split-text .tag { width: fit-content; }
.split-text h2   { margin-bottom: 4px; }

.lead {
  font-size: 1.08rem;
  color: var(--text-2);
  line-height: 1.7;
}

.check-list { display: flex; flex-direction: column; gap: 14px; }
.check-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.95rem;
  color: var(--text-2);
}
.check-list li svg { color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.check-list li strong { color: var(--text); }

.media-wrapper {
  position: relative;
  border-radius: var(--r-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.media-wrapper img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.media-wrapper:hover img { transform: scale(1.04); }

.media-pill {
  position: absolute;
  bottom: 16px; right: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--r-full);
  background: rgba(7,13,26,0.8);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(4,107,210,0.4);
  font-size: 0.78rem;
  font-weight: 600;
  color: #93c5fd;
}
.media-pill svg { color: var(--accent-2); }

/* ─── PASOS (Cómo Funciona) ─────────────────────────────────────────── */
.steps-grid {
  display: flex;
  align-items: flex-start;
  gap: 0;
  justify-content: center;
}
.step {
  flex: 1;
  max-width: 280px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 14px;
}
.step-num {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  background: var(--step-n);
  border: 1px solid var(--border-acc);
  border-radius: var(--r-full);
  padding: 3px 12px;
  width: fit-content;
}
.step-icon {
  width: 72px; height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--step-icon);
  border: 1px solid var(--border-acc);
  border-radius: var(--r-lg);
  color: var(--accent);
  transition: transform var(--t), box-shadow var(--t);
}
.step:hover .step-icon { transform: scale(1.08); box-shadow: var(--glow); }
.step h3 { font-size: 1.1rem; font-weight: 700; color: var(--text); }
.step p  { font-size: 0.9rem; color: var(--text-3); line-height: 1.65; }

.step-connector {
  flex-shrink: 0;
  margin-top: 88px;
  color: var(--border-acc);
  opacity: 0.7;
}

/* ─── ARQUITECTURA ───────────────────────────────────────────────────── */
.arch-image {
  margin-bottom: 48px;
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.arch-image img {
  width: 100%;
  height: auto;
  display: block;
}

.hardware-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.hardware-card {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.hardware-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-h);
  border-color: var(--border-acc);
}
.hw-image {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: rgba(0,0,0,0.2);
}
.hw-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hw-content {
  padding: 24px 26px;
}
.hw-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.hw-content p {
  font-size: 0.92rem;
  color: var(--text-2);
  line-height: 1.65;
  margin-bottom: 16px;
}
.hw-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hw-features li {
  display: flex;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-3);
  line-height: 1.5;
}
.hw-features li::before {
  content: '▸';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* ─── CARDS (Características) ────────────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 30px 28px;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-h);
  border-color: var(--border-acc);
}
.card-icon {
  width: 52px; height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--step-icon);
  border: 1px solid var(--border-acc);
  border-radius: var(--r-md);
  color: var(--accent);
}
.card h3 { font-size: 1rem; font-weight: 700; color: var(--text); }
.card p  { font-size: 0.88rem; color: var(--text-3); line-height: 1.65; }

/* ─── APLICACIONES ────────────────────────────────────────────────────── */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.app-card {
  position: relative;
  padding: 28px 24px;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: all var(--t);
  overflow: hidden;
}
.app-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 0;
  background: var(--gradient);
  border-radius: 0 0 3px 0;
  transition: height 0.4s ease;
}
.app-card:hover { border-color: var(--border-acc); box-shadow: var(--shadow-h); }
.app-card:hover::before { height: 100%; }
.app-card:hover { transform: translateY(-3px); }

.app-num {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}
.app-icon {
  color: var(--accent);
  margin-bottom: 10px;
  opacity: 0.8;
}
.app-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.app-card p { font-size: 0.87rem; color: var(--text-3); line-height: 1.6; }

/* ─── PROYECTOS ──────────────────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.project-card {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.project-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-h);
  border-color: var(--border-acc);
}
.project-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}
.project-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.project-card:hover .project-img img { transform: scale(1.07); }

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(4,107,210,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--t);
}
.project-card:hover .project-overlay { opacity: 1; }
.project-overlay span {
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 20px;
  border: 1.5px solid rgba(255,255,255,0.7);
  border-radius: var(--r-full);
}
.project-info { padding: 18px 20px; }
.project-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}
.project-info h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.project-info p { font-size: 0.83rem; color: var(--text-3); line-height: 1.5; }

/* ─── CONTACTO ───────────────────────────────────────────────────────── */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  padding: 36px 28px;
  border-radius: var(--r-xl);
  border: 1px solid var(--border);
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--t);
}
.contact-card:hover {
  border-color: var(--border-acc);
  box-shadow: var(--shadow-h);
  transform: translateY(-4px);
}
.contact-icon {
  width: 60px; height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  box-shadow: var(--glow);
}
.contact-card h3 { font-size: 1rem; font-weight: 700; color: var(--text); }
.contact-link {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  transition: color var(--t-fast);
}
.contact-link:hover { color: var(--accent-2); }
.contact-hint { font-size: 0.82rem; color: var(--text-3); }

/* ─── FOOTER ─────────────────────────────────────────────────────────── */
.footer {
  background: #040810;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 32px;
  color: rgba(255,255,255,0.6);
  font-size: 0.87rem;
  position: relative;
  z-index: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p { margin-top: 16px; line-height: 1.7; }
.footer-copy { font-size: 0.8rem; opacity: 0.5; margin-top: 8px; }
.footer-logo-light { max-width: 120px; }

.footer-nav h4 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 18px;
}
.footer-nav ul { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a {
  color: rgba(255,255,255,0.55);
  transition: color var(--t-fast);
}
.footer-nav a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.3);
}

/* ─── RESPONSIVE ─────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-inner    { grid-template-columns: 1fr; padding-top: 120px; gap: 40px; }
  .hero-mockup   { max-width: 600px; margin: 0 auto; }
  .hero-content  { text-align: center; align-items: center; }
  .hero-desc     { max-width: 540px; }
  .hero-actions  { justify-content: center; }

  .split-layout  { grid-template-columns: 1fr; }
  .split-media   { order: -1; }
  .media-wrapper { aspect-ratio: 16/9; }

  .hardware-grid { grid-template-columns: 1fr; }
  .cards-grid    { grid-template-columns: repeat(2, 1fr); }
  .apps-grid     { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-cards { grid-template-columns: 1fr; max-width: 380px; margin: 0 auto; }
  .footer-grid   { grid-template-columns: 1fr 1fr; }
  .footer-brand  { grid-column: 1 / -1; }

  .steps-grid {
    flex-direction: column;
    align-items: center;
    gap: 24px;
  }
  .step-connector { display: none; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }

  /* Mockup más compacto en móviles */
  .hero-mockup { max-width: 100%; padding: 0 8px; }
  .mockup-body { padding: 10px; gap: 8px; }
  .mockup-grid-row:nth-child(1) { grid-template-columns: repeat(2, 1fr); }
  .metric-card { padding: 8px 7px; }
  .metric-icon { font-size: 1.1rem; }
  .metric-value { font-size: 0.9rem; }
  .metric-label { font-size: 0.58rem; }
  .chart-viewport { height: 70px; }
  .control-item { padding: 6px; }
  .control-name { font-size: 0.65rem; }
  .node-row { padding: 6px 8px; font-size: 0.62rem; }
  .mockup-title-text { font-size: 0.65rem; }

  .nav-menu { display: none; position: fixed; top: 70px; left: 0; width: 100%;
    flex-direction: column; gap: 0; background: var(--bg-2);
    border-bottom: 1px solid var(--border); padding: 16px 0; z-index: 999; }
  .nav-menu.open { display: flex; }
  .nav-link { padding: 12px 24px; border-radius: 0; }
  .nav-cta  { margin: 12px 24px 0; border-radius: var(--r-full); text-align: center; }
  .menu-toggle { display: flex; }

  .cards-grid    { grid-template-columns: 1fr; }
  .apps-grid     { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .footer-grid   { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2rem; }
  .hero-actions { flex-direction: column; width: 100%; }
  .btn { justify-content: center; }
  h2 { font-size: 1.7rem; }
  
  /* Mockup ultra compacto en móviles pequeños */
  .mockup-body { padding: 8px; gap: 6px; }
  .mockup-titlebar { padding: 8px 12px; }
  .dot { width: 8px; height: 8px; }
  .mockup-title-text { font-size: 0.6rem; max-width: 140px; }
  .metric-card { padding: 6px 5px; }
  .metric-value { font-size: 0.85rem; }
  .metric-label { font-size: 0.55rem; }
  .chart-viewport { height: 60px; }
  .control-header { font-size: 0.6rem; }
  .control-name { font-size: 0.62rem; }
  .toggle-switch { width: 32px; height: 16px; }
  .toggle-handle { width: 12px; height: 12px; }
  .toggle-on .toggle-handle { left: 18px; }
  .node-row { font-size: 0.58rem; padding: 5px 7px; }
}

/* ========================================
   PREGUNTAS FRECUENTES
   ======================================== */
.faq-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

.faq-item:hover {
  border-color: rgba(4,107,210,0.3);
  background: rgba(4,107,210,0.03);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 28px;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1.05rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: all 0.3s ease;
}

.faq-question span {
  flex: 1;
}

.faq-icon {
  flex-shrink: 0;
  color: #046bd2;
  transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1),
              padding 0.4s cubic-bezier(0.4,0,0.2,1);
}

.faq-question[aria-expanded="true"] + .faq-answer {
  max-height: 500px;
  padding: 0 28px 24px 28px;
}

.faq-answer p {
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
  line-height: 1.7;
  margin: 0;
}

/* Responsivo FAQ */
@media (max-width: 768px) {
  .faq-question {
    font-size: 0.95rem;
    padding: 20px 20px;
    gap: 16px;
  }

  .faq-answer p {
    font-size: 0.88rem;
  }

  .faq-question[aria-expanded="true"] + .faq-answer {
    padding: 0 20px 20px 20px;
  }
}

@media (max-width: 480px) {
  .faq-question {
    font-size: 0.88rem;
    padding: 16px 16px;
  }

  .faq-icon {
    width: 20px;
    height: 20px;
  }

  .faq-answer p {
    font-size: 0.82rem;
  }

  .faq-question[aria-expanded="true"] + .faq-answer {
    padding: 0 16px 16px 16px;
  }
}