/* =========================================================================
   DV SUPPLY CHAIN ANALYTICS — LANDING PAGE (VARIANTE B)
   Estilo: dark mode premium, acentos turquesa neón, dashboard estilo Power BI
   ========================================================================= */

/* ---------- 1. RESET ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
img, svg { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; background: none; border: none; }
input, textarea { font: inherit; }

/* ---------- 2. DESIGN TOKENS (Dark Mode Premium) ---------- */
:root {
  /* Fondo azul noche */
  --bg-night-1: #030D1B;
  --bg-night-2: #07162C;

  /* Paneles oscuros (tarjetas, navbar, modal) */
  --panel-navy: #0E2038;
  --panel-navy-light: #142B47;
  --border-dark: rgba(163, 199, 212, 0.16);

  /* Texto */
  --text-light-pure: #FFFFFF;
  --text-muted-cyan: #A3C7D4;
  --text-dim: #6E8FA0;

  /* Acento eléctrico */
  --neon-turquoise: #00ECC6;
  --neon-turquoise-600: #00C9AA;

  /* Panel claro (solo para el mock de dashboard tipo Power BI) */
  --panel-light: #F8FAFC;
  --panel-light-border: #D6DEE7;
  --panel-light-border-strong: #94A3B8;
  --panel-ink: #1A2733;
  --panel-ink-muted: #56697C;

  /* Tipografía */
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* Radios y sombras */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.38);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 0 1px rgba(0, 236, 198, 0.3), 0 0 32px rgba(0, 236, 198, 0.18);

  /* Espaciado de secciones */
  --section-pad: 128px;
  --transition: 0.25s cubic-bezier(.4,0,.2,1);
}

/* ---------- 3. BASE ---------- */
body {
  font-family: var(--font-sans);
  color: var(--text-muted-cyan);
  line-height: 1.65;
  background: linear-gradient(180deg, var(--bg-night-2) 0%, var(--bg-night-1) 60%);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-weight: 800; line-height: 1.2; letter-spacing: -0.02em; color: var(--text-light-pure); }
h3 { font-weight: 700; letter-spacing: -0.01em; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

/* Utilidad accesible: oculta visualmente, disponible para lectores de pantalla */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--neon-turquoise);
  color: var(--bg-night-1);
  font-weight: 700;
  padding: 12px 20px;
  border-radius: 0 0 8px 0;
  z-index: 1000;
}
.skip-link:focus {
  left: 0;
}

/* Foco visible consistente para navegación por teclado */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--neon-turquoise);
  outline-offset: 3px;
  border-radius: 4px;
}

.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { flex-shrink: 0; }

.text-accent { color: var(--neon-turquoise); }

/* ---------- 4. TIPOGRAFÍA DE SECCIÓN ---------- */
.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--neon-turquoise);
  margin-bottom: 18px;
}
.eyebrow--light { color: var(--neon-turquoise); }

.section__title {
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  max-width: 680px;
  margin-bottom: 18px;
}
.section__title--light { color: var(--text-light-pure); }

.section__lead {
  font-size: 1.1rem;
  color: var(--text-muted-cyan);
  max-width: 620px;
  margin-bottom: 64px;
}
.section__lead--light { color: var(--text-muted-cyan); }

.section__note {
  font-size: 0.85rem;
  color: var(--text-dim);
  font-style: italic;
  margin-top: -6px;
  margin-bottom: 44px;
}

/* ---------- 5. ANIMACIÓN DE APARICIÓN (scroll reveal) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .chart-bar, .chart-line, .floating-badge, .dot { transition: none !important; animation: none !important; opacity: 1 !important; transform: none !important; }
}

/* ---------- 6. BOTONES ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--text-light-pure);
  color: var(--bg-night-1);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover { background: var(--neon-turquoise); color: var(--bg-night-1); transform: translateY(-2px); box-shadow: var(--shadow-glow); }

.btn--accent {
  background: var(--neon-turquoise);
  color: var(--bg-night-1);
  box-shadow: var(--shadow-glow);
}
.btn--accent:hover { background: var(--neon-turquoise-600); transform: translateY(-3px); box-shadow: 0 0 0 1px rgba(0,236,198,0.4), 0 16px 40px rgba(0, 236, 198, 0.26); }

.btn--ghost {
  background: transparent;
  color: var(--text-light-pure);
  border-color: var(--border-dark);
}
.btn--ghost:hover { border-color: var(--neon-turquoise); color: var(--neon-turquoise); transform: translateY(-2px); }

.btn--sm { padding: 10px 20px; font-size: 0.85rem; }
.btn--lg { padding: 17px 34px; font-size: 1rem; }
.btn--xl { padding: 20px 44px; font-size: 1.1rem; }
.btn--block { width: 100%; }

/* ---------- 7. NAVBAR ---------- */
.navbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 200;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
  padding: 16px 0;
}
.navbar.is-scrolled {
  background: rgba(3, 13, 27, 0.8);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  padding: 10px 0;
  border-bottom: 1px solid var(--border-dark);
}
.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
}

.navbar__logo {
  display: flex;
  align-items: center;
}
.navbar__logo-img {
  height: 76px;
  width: auto;
  display: block;
  transition: height var(--transition);
}
.navbar.is-scrolled .navbar__logo-img { height: 58px; }

.navbar__nav {
  display: flex;
  align-items: center;
  gap: 26px;
}
.navbar__link {
  font-weight: 500;
  font-size: 0.94rem;
  color: var(--text-muted-cyan);
  transition: color var(--transition);
}
.navbar__link:hover { color: var(--neon-turquoise); }

.navbar__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
}
.navbar__toggle span {
  width: 100%;
  height: 2px;
  background: var(--text-light-pure);
  transition: transform var(--transition), opacity var(--transition);
}
.navbar__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.navbar__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 8. HERO ---------- */
.hero {
  padding: 188px 0 110px;
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(0, 236, 198, 0.14), transparent 60%),
    linear-gradient(180deg, var(--bg-night-2) 0%, var(--bg-night-1) 100%);
  overflow: hidden;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}

.hero__title {
  font-size: clamp(2.1rem, 4vw, 3.4rem);
  margin-bottom: 22px;
}
.hero__subtitle {
  font-size: 1.15rem;
  color: var(--text-muted-cyan);
  max-width: 560px;
  margin-bottom: 36px;
}
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 28px; }
.hero__audience { font-size: 0.88rem; color: var(--text-dim); }
.hero__audience strong { color: var(--text-light-pure); font-weight: 600; }

/* --- Ilustración del Hero: dashboard mock estilo Power BI / Looker Studio --- */
.hero__visual { position: relative; }

.dashboard-mock {
  background: var(--panel-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(15, 23, 42, 0.08);
  border: 1.5px solid var(--panel-light-border-strong);
  padding: 20px 22px 18px;
  color: var(--panel-ink);
  animation: floatY 6s ease-in-out infinite;
}

.dashboard-mock__topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1.5px solid var(--panel-light-border-strong);
}
.dashboard-mock__filters { display: flex; flex-direction: column; gap: 3px; }
.dashboard-mock__filters strong { font-size: 0.86rem; font-weight: 700; color: var(--panel-ink); }
.dashboard-mock__filters span { font-size: 0.68rem; color: var(--panel-ink-muted); }
.dashboard-mock__cta {
  flex-shrink: 0;
  background: #FFFFFF;
  border: 1.5px solid var(--panel-light-border-strong);
  border-radius: 8px;
  padding: 7px 16px;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--panel-ink);
}

.dashboard-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 18px;
}
.dashboard-kpi {
  background: #FFFFFF;
  border: 1.5px solid var(--panel-light-border-strong);
  border-radius: 12px;
  padding: 12px 12px 13px;
}
.dashboard-kpi__label {
  display: block;
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--panel-ink-muted);
  margin-bottom: 6px;
}
.dashboard-kpi__value {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 1.28rem;
  font-weight: 800;
  color: var(--panel-ink);
}
.dashboard-kpi__trend { font-size: 0.85rem; }
.dashboard-kpi__trend--down { color: #DC2626; font-weight: 800; }
.dashboard-kpi__bar-track {
  height: 7px;
  background: var(--panel-light-border);
  border-radius: 4px;
  margin-top: 9px;
  overflow: hidden;
}
.dashboard-kpi__bar-fill { height: 100%; border-radius: 4px; background: #15A15A; box-shadow: 0 0 6px rgba(21,161,90,0.45); }
.dashboard-kpi__bar-fill--blue { background: #1D4ED8; box-shadow: 0 0 6px rgba(29,78,216,0.45); }
.dashboard-kpi__goal {
  display: block;
  font-size: 0.62rem;
  color: var(--panel-ink-muted);
  margin-top: 6px;
}

.dashboard-mock__chart { width: 100%; height: auto; overflow: visible; margin-bottom: 14px; }
.chart-grid { stroke: var(--panel-light-border-strong); stroke-width: 1; }
.chart-axis-label { font-size: 6.5px; fill: #46586B; font-weight: 600; font-family: var(--font-sans); }
.chart-bar {
  fill: #2F6FED;
  stroke: #1D4ED8;
  stroke-width: 0.6;
  opacity: 0.95;
  transform-box: fill-box;
  transform-origin: bottom;
  animation: growBar 1s cubic-bezier(.4,0,.2,1) both;
}
.chart-line {
  fill: none;
  stroke: #0F1F45;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 500;
  stroke-dashoffset: 500;
  filter: drop-shadow(0 1px 1px rgba(15,31,69,0.35));
  animation: drawLine 2.2s 0.4s cubic-bezier(.4,0,.2,1) forwards;
}

.dashboard-table { width: 100%; border-collapse: collapse; }
.dashboard-table th {
  text-align: left;
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--panel-ink-muted);
  padding: 6px 6px;
  border-bottom: 1.5px solid var(--panel-light-border-strong);
}
.dashboard-table td {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--panel-ink);
  padding: 7px 6px;
  border-bottom: 1px solid var(--panel-light-border);
}
.dashboard-table tr:last-child td { border-bottom: none; }
.sparkline { width: 46px; height: 16px; overflow: visible; }
.sparkline polyline { fill: none; stroke: #1D4ED8; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

@keyframes growBar { from { transform: scaleY(0); opacity: 0; } to { transform: scaleY(1); opacity: 0.85; } }
@keyframes drawLine { to { stroke-dashoffset: 0; } }
@keyframes floatY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes floatBadge { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

.floating-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--panel-navy);
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-light-pure);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-dark);
  animation: floatBadge 5s ease-in-out infinite;
}
.floating-badge .icon { color: var(--neon-turquoise); }
.floating-badge--1 { top: -18px; right: 12px; animation-delay: 0.2s; }
.floating-badge--2 { bottom: 46px; left: -28px; animation-delay: 1s; }
.floating-badge--3 { bottom: -20px; right: 30px; animation-delay: 1.8s; }

/* ---------- 9. FRANJA DE ESTADÍSTICAS ---------- */
.stats {
  background: linear-gradient(120deg, var(--bg-night-1) 0%, var(--panel-navy) 100%);
  padding: 56px 0;
  border-top: 1px solid var(--border-dark);
  border-bottom: 1px solid var(--border-dark);
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat { display: flex; flex-direction: column; gap: 8px; }
.stat__value { font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 800; color: var(--neon-turquoise); }
.stat__label { font-size: 0.86rem; color: var(--text-muted-cyan); font-weight: 500; }

/* ---------- 10. SERVICIOS ("Qué hacemos") ---------- */
.services { padding: var(--section-pad) 0; }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.card {
  background: var(--panel-navy);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 34px 28px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
  border-color: transparent;
}
.card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--panel-navy-light);
  color: var(--neon-turquoise);
  margin-bottom: 22px;
  transition: transform var(--transition);
}
.card:hover .card__icon { transform: scale(1.08) rotate(-4deg); }
.card h3 { font-size: 1.08rem; margin-bottom: 10px; }
.card p { color: var(--text-muted-cyan); font-size: 0.95rem; }

/* ---------- 11. PROCESO ("Cómo lo hacemos") — timeline ---------- */
.process { padding: var(--section-pad) 0; background: var(--bg-night-2); }

.timeline {
  display: flex;
  align-items: stretch;
  gap: 8px;
}
.timeline__step {
  flex: 1;
  background: var(--panel-navy);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 30px 22px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.timeline__step:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.timeline__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--panel-navy-light);
  color: var(--neon-turquoise);
  font-weight: 800;
  font-size: 0.85rem;
  margin-bottom: 20px;
}
.timeline__step h3 { font-size: 1rem; margin-bottom: 8px; }
.timeline__step p { font-size: 0.88rem; color: var(--text-muted-cyan); }
.timeline__connector {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  transform: rotate(-90deg);
  flex-shrink: 0;
}

/* ---------- 11b. SUPPLY CHAIN CONTROL TOWER (infografía) ---------- */
.control-tower { padding: var(--section-pad) 0; }
.control-tower__intro { max-width: 680px; }
.control-tower__cta { margin-top: 8px; }

.control-tower__figure {
  display: flex;
  justify-content: center;
  margin-top: 56px;
}
.control-tower__img {
  width: 100%;
  max-width: 640px;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glow), var(--shadow-lg);
  border: 1px solid var(--border-dark);
}

/* ---------- 12. TESTIMONIOS ---------- */
.testimonials { padding: var(--section-pad) 0; background: var(--bg-night-2); }

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.testimonial {
  background: var(--panel-navy);
  border-radius: var(--radius-md);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  border: 1px solid var(--border-dark);
  transition: transform var(--transition), box-shadow var(--transition);
}
.testimonial:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.testimonial__quote-mark { color: var(--neon-turquoise); opacity: 0.8; }
.testimonial p {
  color: var(--text-light-pure);
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1.55;
}
.testimonial footer { display: flex; flex-direction: column; gap: 2px; }
.testimonial__name { font-weight: 700; color: var(--text-light-pure); font-size: 0.95rem; }
.testimonial__role { font-size: 0.85rem; color: var(--text-dim); }

/* ---------- 13. ACTÚA AHORA (CTA final) ---------- */
.cta-final {
  padding: var(--section-pad) 0 90px;
  background: radial-gradient(900px 460px at 50% -10%, rgba(0,236,198,0.16), transparent 60%), var(--bg-night-1);
  text-align: center;
}
.cta-final__inner { display: flex; flex-direction: column; align-items: center; }
.cta-final .section__title { max-width: 620px; }
.cta-final .section__lead { max-width: 560px; margin-bottom: 44px; }

.checklist-band {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--border-dark);
  width: 100%;
}
.checklist-band li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-light-pure);
  background: var(--panel-navy-light);
  border: 1px solid var(--border-dark);
  border-radius: 999px;
  padding: 9px 18px;
}
.checklist-band .icon { color: var(--neon-turquoise); }

/* ---------- 14. FOOTER ---------- */
.footer { background: var(--bg-night-1); color: var(--text-muted-cyan); padding: 64px 0 28px; }
.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--border-dark);
}
.footer__brand { display: flex; flex-direction: column; align-items: flex-start; gap: 14px; }
.footer__logo-badge {
  display: inline-flex;
  background: var(--text-light-pure);
  border-radius: 14px;
  padding: 14px 20px;
}
.footer__logo-img { height: 84px; width: auto; display: block; }
.footer__text { font-size: 0.9rem; color: var(--text-dim); max-width: 320px; }

.footer__links { display: flex; flex-direction: column; gap: 12px; font-size: 0.9rem; }
.footer__links a:hover { color: var(--neon-turquoise); }

.footer__contact { font-size: 0.9rem; display: flex; flex-direction: column; gap: 8px; }

.footer__copy { text-align: center; font-size: 0.8rem; color: var(--text-dim); margin-top: 24px; }

/* ---------- 15. MODAL: AGENDAR REUNIÓN ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 13, 27, 0.72);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 500;
  opacity: 0;
  transition: opacity var(--transition);
}
.modal-overlay.is-open { opacity: 1; }
.modal-overlay[hidden] { display: none; }

.modal {
  position: relative;
  background: var(--panel-navy);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glow), var(--shadow-lg);
  border: 1px solid var(--border-dark);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 44px 40px 40px;
  transform: translateY(16px) scale(0.98);
  transition: transform var(--transition);
}
.modal-overlay.is-open .modal { transform: translateY(0) scale(1); }

.modal__close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--text-muted-cyan);
  transition: background var(--transition), color var(--transition);
}
.modal__close:hover { background: var(--panel-navy-light); color: var(--neon-turquoise); }

.modal__body h2 { font-size: 1.5rem; margin-bottom: 10px; }
.modal__lead { color: var(--text-muted-cyan); font-size: 0.95rem; margin-bottom: 28px; }

/* ---------- 16. FORMULARIO ---------- */
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form__group { margin-bottom: 18px; display: flex; flex-direction: column; }
.form__group label { font-size: 0.84rem; font-weight: 600; color: var(--text-light-pure); margin-bottom: 6px; }
.form__optional { font-weight: 400; color: var(--text-dim); }
.form__group input, .form__group textarea {
  font-size: 0.95rem;
  padding: 12px 14px;
  background: var(--panel-navy-light);
  border: 1.5px solid var(--border-dark);
  border-radius: 10px;
  color: var(--text-light-pure);
  transition: border-color var(--transition);
  resize: vertical;
}
.form__group input::placeholder, .form__group textarea::placeholder { color: var(--text-dim); }
.form__group input:focus, .form__group textarea:focus { outline: none; border-color: var(--neon-turquoise); }
.form__group.has-error input, .form__group.has-error textarea { border-color: #FF6B6B; }
.form__error { font-size: 0.78rem; color: #FF6B6B; min-height: 16px; margin-top: 4px; }

.form__success { text-align: center; padding: 20px 6px 6px; }
.form__success-icon {
  width: 60px; height: 60px; margin: 0 auto 20px;
  border-radius: 50%;
  background: rgba(0,236,198,0.12);
  color: var(--neon-turquoise);
  display: flex; align-items: center; justify-content: center;
}
.form__success h3 { margin-bottom: 10px; }
.form__success p { color: var(--text-muted-cyan); margin-bottom: 24px; }

/* ---------- 17. BOTÓN VOLVER ARRIBA ---------- */
.back-to-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--panel-navy);
  color: var(--neon-turquoise);
  border: 1px solid var(--border-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: 150;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition), background var(--transition), color var(--transition);
}
.back-to-top.is-visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { background: var(--neon-turquoise); color: var(--bg-night-1); }
.back-to-top[hidden] { display: none; }

/* =========================================================================
   18. RESPONSIVE
   ========================================================================= */
@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { max-width: 480px; margin: 0 auto; }
  .timeline { flex-direction: column; }
  .timeline__connector { transform: rotate(0deg); padding: 4px 0; }
}

@media (max-width: 1080px) {
  .navbar__nav { gap: 18px; }
  .navbar__link { font-size: 0.88rem; }
}

@media (max-width: 860px) {
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .footer__inner { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --section-pad: 88px; }

  .navbar__nav {
    position: absolute;
    top: 100%;
    left: 16px;
    right: 16px;
    background: var(--panel-navy);
    border-radius: var(--radius-md);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-dark);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }
  .navbar__nav.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .navbar__link { padding: 12px 10px; border-radius: 8px; }
  .navbar__link:hover { background: var(--panel-navy-light); }
  .navbar__nav .btn { margin-top: 8px; justify-content: center; }
  .navbar__toggle { display: flex; }

  .hero { padding: 160px 0 80px; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { justify-content: center; }

  .floating-badge { display: none; }

  .section__lead { margin-bottom: 44px; }
  .section__note { margin-top: -4px; margin-bottom: 30px; }

  .form__row { grid-template-columns: 1fr; }
  .modal { padding: 36px 22px 28px; }

  .stats__grid { grid-template-columns: 1fr; gap: 28px; }

  .dashboard-table th:nth-child(3), .dashboard-table td:nth-child(3) { display: none; }
}