/* =====================================================================
   Frostbyte — landing standalone
   Mobile-first. Sin frameworks. Paleta corporativa Frostbyte.
   ===================================================================== */

:root {
  --c-primary:   #0c4a6e;
  --c-primary-d: #075985;
  --c-accent:    #60b8e0;
  --c-accent-l:  #cfe9f5;
  --c-bg:        #f1f5f9;
  --c-bg-soft:   #f8fafc;
  --c-card:      #ffffff;
  --c-text:      #0f172a;
  --c-muted:     #64748b;
  --c-border:    #e2e8f0;
  --c-warn:      #f59e0b;
  --c-ok:        #10b981;

  --radius:    12px;
  --radius-sm: 8px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow:    0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(12, 74, 110, 0.18);

  --space:     16px;
  --space-2:   24px;
  --space-3:   40px;
  --space-4:   64px;
  --space-5:   96px;
}

/* ── Reset mínimo ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { padding-left: 1.2em; }
button { font: inherit; cursor: pointer; }

h1, h2, h3, h4 { font-family: inherit; line-height: 1.2; color: var(--c-text); margin-top: 0; }
h1 { font-size: clamp(1.85rem, 4.5vw, 2.85rem); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.45rem, 3.2vw, 2.1rem); font-weight: 700; letter-spacing: -0.01em; margin-bottom: 0.6em; }
h3 { font-size: 1.18rem; font-weight: 600; margin: 0 0 0.5em 0; }
h4 { font-size: 0.95rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--c-muted); margin: 0 0 .8em 0; }
p  { margin: 0 0 1em 0; }
.muted { color: var(--c-muted); }
.small { font-size: 0.875rem; }

/* ── Layout helpers ─────────────────────────────────────────────────── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 var(--space); }
.container-narrow { max-width: 800px; margin: 0 auto; padding: 0 var(--space); }
.section { padding: var(--space-4) 0; }
.section-alt { background: var(--c-bg-soft); }
.section-lead {
  font-size: 1.05rem;
  color: var(--c-muted);
  margin: 0 0 var(--space-3) 0;
  max-width: 720px;
}

/* ── Botones ────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.96rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.12s ease, box-shadow 0.18s ease, background 0.2s;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: var(--c-primary); color: #fff;
  box-shadow: 0 2px 6px rgba(12, 74, 110, 0.25);
}
.btn-primary:hover { background: var(--c-primary-d); box-shadow: 0 4px 14px rgba(12, 74, 110, 0.35); }
.btn-ghost {
  background: transparent;
  color: var(--c-primary);
  border-color: var(--c-primary);
}
.btn-ghost:hover { background: var(--c-accent-l); }
.btn-sm { padding: 8px 16px; font-size: 0.88rem; }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }

/* ── Badge ──────────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  background: var(--c-accent-l);
  color: var(--c-primary-d);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.82rem; font-weight: 600;
  margin-bottom: var(--space);
}

/* ── Nav ────────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--c-border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px var(--space);
  min-height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--c-primary); }
.brand:hover { text-decoration: none; }
.brand-name { font-weight: 800; font-size: 1.1rem; letter-spacing: -0.01em; }
.nav-links {
  display: none;
  gap: 24px;
  align-items: center;
}
.nav-links a { color: var(--c-text); font-weight: 500; }
.nav-links a:hover { color: var(--c-primary); text-decoration: none; }

.nav-toggle {
  display: flex; flex-direction: column; gap: 5px;
  background: transparent; border: 0; padding: 8px;
}
.nav-toggle span {
  width: 24px; height: 2px; background: var(--c-text); border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .nav-links { display: flex; }
}

@media (max-width: 899.98px) {
  .nav-links {
    position: absolute; top: 64px; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 8px;
    border-bottom: 1px solid var(--c-border);
    transform: translateY(-12px);
    opacity: 0; pointer-events: none;
    transition: transform 0.2s ease, opacity 0.2s ease;
    box-shadow: var(--shadow);
  }
  .nav-links a {
    padding: 12px 8px;
    border-bottom: 1px solid var(--c-border);
  }
  .nav-links a:last-child { border-bottom: 0; }
  .nav-links.open {
    display: flex;
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
}

/* ── Hero ───────────────────────────────────────────────────────────── */
.hero {
  background:
    radial-gradient(circle at 20% 0%, rgba(96, 184, 224, 0.18), transparent 50%),
    radial-gradient(circle at 90% 30%, rgba(12, 74, 110, 0.08), transparent 60%),
    var(--c-bg);
  padding: var(--space-4) 0 var(--space-5);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  align-items: center;
}
.hero h1 { margin: 0 0 var(--space) 0; }
.lead { font-size: 1.08rem; color: var(--c-text); max-width: 580px; }
.hero-cta {
  display: flex; flex-wrap: wrap; gap: 12px;
  margin: var(--space-2) 0;
}
.hero-bullets {
  list-style: none; padding: 0; margin: var(--space) 0 0 0;
  display: flex; flex-direction: column; gap: 6px;
  color: var(--c-muted);
}

@media (min-width: 960px) {
  .hero-inner {
    grid-template-columns: 1.05fr 0.95fr;
    gap: var(--space-4);
  }
}

/* Mockup del tablero (decorativo) */
.dashboard-mock {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--c-border);
}
.dm-head {
  background: linear-gradient(90deg, var(--c-primary) 0%, var(--c-primary-d) 100%);
  padding: 10px 14px;
  display: flex; align-items: center; gap: 6px;
}
.dm-dot {
  width: 11px; height: 11px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
}
.dm-dot:first-of-type { background: rgba(255, 89, 89, 0.85); }
.dm-dot:nth-of-type(2) { background: rgba(255, 189, 46, 0.85); }
.dm-dot:nth-of-type(3) { background: rgba(82, 217, 156, 0.85); }
.dm-title { color: rgba(255,255,255,0.92); font-size: 0.85rem; margin-left: auto; font-weight: 500; }
.dm-body { padding: 18px; display: grid; gap: 12px; }
.dm-card {
  display: grid; grid-template-columns: 1fr auto auto;
  align-items: center; gap: 12px;
  padding: 14px;
  background: var(--c-bg-soft);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--c-ok);
}
.dm-card.dm-warn { border-left-color: var(--c-warn); background: #fef9c3; }
.dm-label { font-weight: 600; }
.dm-temp { font-size: 1.32rem; font-weight: 700; color: var(--c-primary-d); font-variant-numeric: tabular-nums; }
.dm-status { font-size: 0.85rem; color: var(--c-muted); }

/* ── Iceberg / Fábrica Oculta ──────────────────────────────────────── */
.iceberg-section {
  position: relative;
  padding: var(--space-4) 0;
  background:
    radial-gradient(ellipse at top, rgba(96, 184, 224, 0.10), transparent 60%),
    linear-gradient(180deg, var(--c-bg-soft) 0%, #fff 100%);
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}
.iceberg-eyebrow {
  display: inline-block;
  font-size: 0.82rem; font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-primary-d);
  background: var(--c-accent-l);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: var(--space);
}
.iceberg-title {
  font-size: clamp(1.5rem, 3.4vw, 2.15rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-2) 0;
  color: var(--c-primary-d);
}
.iceberg-title em {
  font-style: italic;
  color: var(--c-accent);
  background: linear-gradient(180deg, transparent 60%, rgba(96, 184, 224, 0.25) 60%);
  padding: 0 4px;
}
.iceberg-body p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--c-text);
  margin: 0 0 1.1em 0;
}
.iceberg-body p strong { color: var(--c-primary-d); }

.iceberg-benefits {
  display: grid;
  gap: var(--space-2);
  grid-template-columns: 1fr;
  margin-top: var(--space-3);
}
@media (min-width: 760px) { .iceberg-benefits { grid-template-columns: repeat(3, 1fr); } }

.benefit-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: var(--space-2);
  border-top: 4px solid var(--c-accent);
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s, box-shadow 0.2s;
}
.benefit-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.benefit-card .benefit-icon {
  font-size: 2rem;
  width: 52px; height: 52px;
  background: var(--c-accent-l);
  border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 10px;
}
.benefit-card h3 { color: var(--c-primary-d); margin-bottom: 8px; }
.benefit-card p {
  color: var(--c-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
}
.benefit-card strong { color: var(--c-text); }

/* ── Video click-to-play (lite YouTube embed) ────────────────────── */
.video-thumb {
  position: relative;
  display: block;
  margin-top: 14px;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #0c1f3a;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s, box-shadow 0.2s;
  outline: none;
}
.video-thumb:hover, .video-thumb:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(12, 31, 58, 0.35);
}
.video-thumb:focus-visible {
  outline: 3px solid var(--c-accent);
  outline-offset: 2px;
}
.video-thumb .video-poster {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-sm);
  filter: brightness(0.92);
  transition: filter 0.2s;
}
.video-thumb:hover .video-poster { filter: brightness(0.78); }

.video-thumb .video-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px; height: 72px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--c-accent);
  color: #0c1f3a;
  border-radius: 50%;
  font-size: 1.6rem;
  padding-left: 5px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  transition: transform 0.15s, background 0.2s;
}
.video-thumb:hover .video-play {
  transform: translate(-50%, -50%) scale(1.08);
  background: #82c8ea;
}

.video-thumb .video-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px 16px;
  background: linear-gradient(180deg, transparent 0%, rgba(12, 31, 58, 0.92) 100%);
  display: flex;
  flex-direction: column;
  gap: 2px;
  pointer-events: none;
}
.video-thumb .video-label strong { color: #fff; font-size: 0.98rem; font-weight: 600; }
.video-thumb .video-meta { color: var(--c-accent-l); font-size: 0.82rem; }

/* Estado reproduciendo: el iframe ocupa todo el contenedor */
.video-thumb.playing { cursor: default; aspect-ratio: 16 / 9; }
.video-thumb.playing .video-play,
.video-thumb.playing .video-label,
.video-thumb.playing .video-poster { display: none; }
.video-thumb.playing iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

/* ── Frostbyte AI — sección dedicada ───────────────────────────────── */
.frostbyte-ai {
  background: linear-gradient(135deg, #0a1f3a 0%, #0c4a6e 50%, #075985 100%);
  color: #fff;
  padding: var(--space-4) 0;
  position: relative;
  overflow: hidden;
}
.frostbyte-ai::before {
  content: "";
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(96, 184, 224, 0.25), transparent 70%);
  pointer-events: none;
}
.ai-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  align-items: center;
  position: relative;
  z-index: 1;
}
@media (min-width: 900px) {
  .ai-grid {
    grid-template-columns: 0.8fr 1.2fr;
    gap: var(--space-4);
  }
}
.ai-logo { text-align: center; }
.ai-logo img {
  max-width: 280px;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 12px 32px rgba(96, 184, 224, 0.35));
}
@media (min-width: 900px) {
  .ai-logo img { max-width: 360px; }
}
.ai-eyebrow {
  display: inline-block;
  font-size: 0.82rem; font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-accent);
  background: rgba(96, 184, 224, 0.18);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: var(--space);
}
.ai-content h2 {
  color: #fff;
  font-size: clamp(1.5rem, 3.4vw, 2.15rem);
  margin: 0 0 var(--space) 0;
  letter-spacing: -0.01em;
}
.ai-lead {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.04rem;
  line-height: 1.65;
  margin-bottom: var(--space-2);
}
.ai-lead em { color: var(--c-accent-l); font-style: italic; }
.ai-features {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-2) 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}
@media (min-width: 540px) {
  .ai-features { grid-template-columns: repeat(2, 1fr); }
}
.ai-features li {
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.ai-features li span {
  font-size: 1.1rem;
  flex-shrink: 0;
}
.ai-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space);
  margin-top: var(--space-2);
}
.frostbyte-ai .btn-primary {
  background: #fff;
  color: var(--c-primary-d);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}
.frostbyte-ai .btn-primary:hover { background: var(--c-bg); transform: translateY(-2px); }
.ai-number {
  margin: 0;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
}
.ai-number strong {
  color: #fff;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}
.ai-disclaimer {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: var(--space);
  font-style: italic;
}

/* ── Story / pitch narrativo en página ──────────────────────────────── */
.story {
  background: #fff;
  padding: var(--space-4) 0;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}
.story-eyebrow {
  display: inline-block;
  font-size: 0.82rem; font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-accent);
  background: var(--c-accent-l);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: var(--space);
}
.story-title {
  font-size: clamp(1.5rem, 3.4vw, 2.15rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-2) 0;
  color: var(--c-primary-d);
}
.story-body p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--c-text);
  margin: 0 0 1.1em 0;
}
.story-body p strong { color: var(--c-primary-d); }
.story-body p em { font-style: italic; color: var(--c-muted); }
.story-close {
  margin-top: var(--space-2) !important;
  padding: var(--space-2);
  background: var(--c-bg-soft);
  border-left: 4px solid var(--c-accent);
  border-radius: var(--radius-sm);
  font-size: 1.04rem !important;
}
@media (min-width: 720px) {
  .story-body p { font-size: 1.12rem; }
  .story-close { font-size: 1.1rem !important; }
}

/* ── Grids genéricos ────────────────────────────────────────────────── */
.grid { display: grid; gap: var(--space); }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
@media (min-width: 720px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); gap: var(--space-2); }
}
@media (min-width: 1000px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

/* ── Tarjetas (sectores) ────────────────────────────────────────────── */
.card {
  background: var(--c-card);
  padding: var(--space-2);
  border-radius: var(--radius);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.2s;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.card-icon { font-size: 2rem; margin-bottom: 8px; }
.card p { margin: 0; color: var(--c-muted); font-size: 0.95rem; }

/* ── Beneficios ─────────────────────────────────────────────────────── */
.grid-benefits .benefit {
  background: linear-gradient(180deg, #fff 0%, var(--c-bg-soft) 100%);
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  text-align: left;
}
.benefit-icon {
  font-size: 2.4rem;
  margin-bottom: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  width: 56px; height: 56px;
  background: var(--c-accent-l);
  border-radius: 14px;
}
.benefit p { color: var(--c-muted); margin: 0; }
.benefit strong { color: var(--c-text); }

/* ── Steps (cómo funciona) ─────────────────────────────────────────── */
.steps {
  list-style: none;
  padding: 0; margin: 0;
  display: grid; gap: var(--space-2);
}
.step {
  position: relative;
  padding: var(--space-2) var(--space-2) var(--space-2) 80px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
}
.step-num {
  position: absolute; top: var(--space-2); left: var(--space-2);
  width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--c-primary); color: #fff;
  font-weight: 800; font-size: 1.2rem;
  border-radius: 50%;
}
.step h3 { margin-bottom: 4px; }
.step p { color: var(--c-muted); margin: 0; }
@media (min-width: 880px) {
  .steps { grid-template-columns: repeat(2, 1fr); gap: var(--space-2); }
}
@media (min-width: 1100px) {
  .steps { grid-template-columns: repeat(4, 1fr); }
}

/* ── Plataforma ─────────────────────────────────────────────────────── */
.platform-grid {
  display: grid;
  gap: var(--space-3);
  align-items: center;
}
@media (min-width: 980px) {
  .platform-grid { grid-template-columns: 1.05fr 0.95fr; }
}
.mock-frame {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--c-border);
}
.mock-bar {
  background: #f1f5f9; border-bottom: 1px solid var(--c-border);
  padding: 8px 14px; display: flex; align-items: center; gap: 6px;
}
.mock-bar > span { width: 10px; height: 10px; border-radius: 50%; background: var(--c-border); }
.mock-bar > span:first-child { background: #ff6b6b; }
.mock-bar > span:nth-child(2) { background: #ffd166; }
.mock-bar > span:nth-child(3) { background: #51cf66; }
.mock-url {
  margin-left: auto;
  font-size: 0.78rem; color: var(--c-muted);
  font-family: ui-monospace, "Cascadia Code", "SF Mono", Menlo, monospace;
  width: auto !important; height: auto !important; background: transparent !important; border-radius: 0 !important;
}
.mock-content { padding: var(--space-2); }
.mock-title { font-weight: 700; font-size: 1rem; margin-bottom: 12px; color: var(--c-primary-d); }
.mock-graph { background: var(--c-bg-soft); border-radius: var(--radius-sm); padding: 8px; margin-bottom: 14px; }
.mock-graph svg { width: 100%; height: 110px; }
.mock-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.mock-stats div {
  background: var(--c-bg-soft); padding: 12px; border-radius: var(--radius-sm); text-align: center;
}
.mock-stats strong { display: block; font-size: 1.2rem; color: var(--c-primary-d); font-variant-numeric: tabular-nums; }
.mock-stats span { font-size: 0.78rem; color: var(--c-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.mock-caption { font-size: 0.82rem; color: var(--c-muted); text-align: center; margin-top: 10px; }

.platform-list {
  list-style: none; padding: 0; margin: 0;
  display: grid; gap: 16px;
}
.platform-list li {
  display: grid; grid-template-columns: auto 1fr; gap: 4px 0;
  padding: 14px 16px;
  background: #fff;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border);
}
.platform-list strong { color: var(--c-primary-d); font-size: 1.02rem; }
.platform-list span { grid-column: 1 / -1; color: var(--c-muted); font-size: 0.92rem; }

/* ── Screens (collage de capturas reales) ──────────────────────────── */
.screens {
  display: grid;
  gap: var(--space-2);
  grid-template-columns: 1fr;
  margin-bottom: var(--space-3);
}
@media (min-width: 720px) {
  .screens {
    grid-template-columns: repeat(2, 1fr);
  }
  .screens .screen-wide { grid-column: 1 / -1; }
}
.screen {
  margin: 0;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s, transform 0.15s;
  display: flex;
  flex-direction: column;
}
.screen:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.screen img {
  width: 100%;
  height: auto;
  display: block;
  background: var(--c-bg-soft);
  border-bottom: 1px solid var(--c-border);
}
.screen figcaption {
  padding: 14px 18px;
  font-size: 0.92rem;
  color: var(--c-muted);
  line-height: 1.5;
}
.screen figcaption strong { color: var(--c-primary-d); display: block; margin-bottom: 4px; }

/* Lista de capacidades ancha (debajo del collage) */
.platform-list-wide {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
  margin-top: var(--space-3);
  padding: 0;
  list-style: none;
}
@media (min-width: 720px) { .platform-list-wide { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .platform-list-wide { grid-template-columns: repeat(3, 1fr); } }

/* ── Adaptación tecnológica ─────────────────────────────────────────── */
.grid-adapt { gap: var(--space-2); }
.adapt-card {
  background: #fff;
  padding: var(--space-2);
  border-radius: var(--radius);
  border: 1px solid var(--c-border);
  border-top: 4px solid var(--c-accent);
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s, box-shadow 0.2s;
}
.adapt-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.adapt-icon {
  font-size: 2rem;
  margin-bottom: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  width: 52px; height: 52px;
  background: var(--c-accent-l);
  border-radius: 12px;
}
.adapt-card h3 { color: var(--c-primary-d); margin-bottom: 8px; }
.adapt-card p {
  color: var(--c-text);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0 0 0.8em 0;
}
.adapt-card p:last-child { margin-bottom: 0; }
.adapt-link { font-size: 0.92rem; }
.adapt-link a {
  color: var(--c-primary);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--c-accent);
}
.adapt-link a:hover { background: var(--c-accent-l); }

/* ── WiFi banner (modelo comercial destacado) ──────────────────────── */
.wifi-banner {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-d) 100%);
  color: #fff;
  padding: var(--space-3) 0;
}
.wifi-banner-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space);
  align-items: center;
  text-align: center;
}
@media (min-width: 760px) {
  .wifi-banner-inner {
    grid-template-columns: auto 1fr;
    text-align: left;
    gap: var(--space-2);
  }
}
.wifi-icon {
  font-size: 4rem;
  width: 110px; height: 110px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  margin: 0 auto;
  flex-shrink: 0;
}
.wifi-text h2 {
  color: #fff;
  font-size: clamp(1.6rem, 3.5vw, 2.3rem);
  margin: 0 0 10px 0;
  letter-spacing: -0.01em;
}
.wifi-text p {
  color: rgba(255, 255, 255, 0.92);
  font-size: 1.04rem;
  line-height: 1.6;
  margin: 0;
  max-width: 720px;
}
.wifi-text strong { color: var(--c-accent-l); }

/* ── Casos ──────────────────────────────────────────────────────────── */
.case {
  background: #fff;
  border-radius: var(--radius);
  padding: var(--space-2);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
}
.case-tag {
  display: inline-block;
  font-size: 0.78rem; font-weight: 600;
  color: var(--c-primary-d);
  background: var(--c-accent-l);
  padding: 4px 10px; border-radius: 999px;
  margin-bottom: 10px;
  text-transform: uppercase; letter-spacing: 0.04em;
}
.case h3 { margin-bottom: 6px; }
.case-metric {
  font-size: 1.05rem; font-weight: 700; color: var(--c-primary-d);
  margin: 0 0 10px 0;
}
.case p { color: var(--c-muted); margin: 0; }
.case-footer { margin-top: var(--space-2); text-align: center; }

/* ── Diferenciadores ───────────────────────────────────────────────── */
.grid-diff { gap: var(--space-2); }
.diff-row {
  background: #fff;
  padding: var(--space-2);
  border-radius: var(--radius);
  border-left: 4px solid var(--c-accent);
  border-top: 1px solid var(--c-border);
  border-right: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
}
.diff-row h3 { color: var(--c-primary-d); margin-bottom: 8px; }
.diff-row p { color: var(--c-muted); margin: 0; font-size: 0.95rem; }

/* ── Cumplimiento ──────────────────────────────────────────────────── */
.compliance {
  display: grid;
  gap: var(--space);
  grid-template-columns: 1fr;
}
@media (min-width: 720px) { .compliance { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .compliance { grid-template-columns: repeat(3, 1fr); } }
.compliance-item {
  background: #fff;
  padding: var(--space-2);
  border-radius: var(--radius);
  border: 1px solid var(--c-border);
}
.compliance-tag {
  display: inline-block;
  background: var(--c-primary);
  color: #fff;
  font-size: 0.85rem; font-weight: 700;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
}
.compliance-item p { color: var(--c-muted); margin: 0; font-size: 0.92rem; }

/* ── FAQ ────────────────────────────────────────────────────────────── */
.faq { display: grid; gap: 10px; }
.faq-item {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 0;
  transition: box-shadow 0.18s;
}
.faq-item[open] { box-shadow: var(--shadow); border-color: var(--c-accent); }
.faq-item summary {
  list-style: none;
  padding: 16px 20px;
  font-weight: 600;
  cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  color: var(--c-primary);
  font-size: 1.4rem; font-weight: 400;
  transition: transform 0.2s;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item p {
  padding: 0 20px 18px 20px;
  color: var(--c-muted);
  margin: 0;
}
.faq-item p strong { color: var(--c-text); }

/* ── CTA final ──────────────────────────────────────────────────────── */
.cta-final {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-d) 100%);
  color: #fff;
  text-align: center;
  padding: var(--space-5) var(--space);
}
.cta-final h2 { color: #fff; margin-bottom: 12px; }
.cta-final p { color: rgba(255, 255, 255, 0.88); max-width: 600px; margin: 0 auto var(--space-2); font-size: 1.05rem; }
.cta-final .btn-primary {
  background: #fff;
  color: var(--c-primary-d);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}
.cta-final .btn-primary:hover { background: var(--c-bg); transform: translateY(-2px); }
.cta-alt { margin-top: var(--space-2); }
.cta-alt a { color: var(--c-accent-l); }

/* ── Footer ─────────────────────────────────────────────────────────── */
.footer {
  background: var(--c-text);
  color: #cbd5e1;
  padding: var(--space-3) 0 var(--space) 0;
}
.footer-inner {
  display: grid;
  gap: var(--space-2);
}
@media (min-width: 800px) {
  .footer-inner { grid-template-columns: 1fr 2fr; }
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand strong { color: #fff; font-size: 1.1rem; display: block; }
.footer-cols {
  display: grid; gap: var(--space-2);
  grid-template-columns: 1fr;
}
@media (min-width: 600px) { .footer-cols { grid-template-columns: repeat(3, 1fr); } }
.footer h4 { color: #fff; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 6px; font-size: 0.92rem; }
.footer a { color: #cbd5e1; }
.footer a:hover { color: #fff; }
.footer .muted { color: #94a3b8; }
.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: var(--space);
  margin-top: var(--space-2);
  text-align: center;
}
.footer-bottom .muted { color: #64748b; }

/* ── Print ──────────────────────────────────────────────────────────── */
@media print {
  .nav, .nav-toggle, .hero-cta, .cta-final, .footer { display: none; }
  body { background: #fff; }
}