/* ===== JERALTECH — Design Tokens ===== */
:root {
  /* Paleta oficial de marca, reequilibrada con negro, sombras y luces */
  --black: #020408;
  --navy: #061329;
  --navy-soft: #050c1a;
  --blue: #006bff;
  --blue-deep: #123d8d;
  --cyan: #00d9f5;
  --white-cold: #f4f7fc;

  --text: var(--white-cold);
  --text-muted: #93a1c2;
  --border: rgba(244, 247, 252, 0.08);
  --border-strong: rgba(244, 247, 252, 0.16);
  --surface: rgba(244, 247, 252, 0.03);
  --surface-strong: rgba(244, 247, 252, 0.06);

  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 16px 40px -12px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 30px 70px -20px rgba(0, 0, 0, 0.65);
  --shadow-glow-blue: 0 0 0 1px rgba(0, 107, 255, 0.08), 0 20px 50px -16px rgba(0, 107, 255, 0.25);
  --shadow-glow-cyan: 0 0 40px -6px rgba(0, 217, 245, 0.35);
  --inset-top: inset 0 1px 0 rgba(244, 247, 252, 0.06);

  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  --radius: 16px;
  --radius-sm: 10px;
  --container: 1140px;
  --header-h: 76px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ===== Reset ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background:
    radial-gradient(ellipse 90% 50% at 50% 0%, rgba(0, 107, 255, 0.08), transparent 60%),
    linear-gradient(165deg, var(--black) 0%, var(--navy) 55%, var(--navy-soft) 100%);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.01em; }
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Scroll progress ===== */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  z-index: 1000;
  transition: width 0.1s linear;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  display: flex;
  align-items: center;
  z-index: 900;
  background: rgba(2, 4, 8, 0.4);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.site-header.is-scrolled {
  border-bottom-color: var(--border);
  background: rgba(2, 4, 8, 0.78);
  box-shadow: var(--shadow-md);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand-logo { height: 38px; width: auto; }

.main-nav { display: flex; align-items: center; gap: 32px; }
.main-nav a {
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: color 0.2s var(--ease);
}
.main-nav a:hover { color: var(--text); }
.nav-cta {
  padding: 10px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: var(--navy) !important;
  font-weight: 600;
  box-shadow: var(--shadow-glow-blue);
}
.nav-cta:hover { opacity: 0.9; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: radial-gradient(ellipse 65% 55% at 50% 40%, transparent 40%, rgba(2, 4, 8, 0.75) 100%);
  pointer-events: none;
}
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(244,247,252,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244,247,252,0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black 10%, transparent 75%);
}
.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.45;
}
.glow-1 {
  width: 520px; height: 520px;
  background: var(--blue-deep);
  top: -180px; left: -120px;
}
.glow-2 {
  width: 460px; height: 460px;
  background: var(--cyan);
  opacity: 0.18;
  bottom: -200px; right: -140px;
}
.hero-inner { position: relative; z-index: 1; max-width: 760px; }
.eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 20px;
  font-weight: 600;
}
.hero h1 {
  font-size: clamp(2.3rem, 5.2vw, 3.6rem);
  line-height: 1.12;
  margin-bottom: 24px;
}
.text-gradient {
  background: linear-gradient(135deg, var(--blue) 10%, var(--cyan) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: 1.08rem;
  color: var(--text-muted);
  max-width: 560px;
  margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), opacity 0.2s var(--ease);
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: var(--navy);
  box-shadow: var(--shadow-glow-blue), var(--shadow-md);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow-cyan), var(--shadow-lg); }
.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border-strong);
  box-shadow: var(--inset-top), var(--shadow-sm);
}
.btn-ghost:hover { background: var(--surface-strong); transform: translateY(-2px); }
.btn-whatsapp {
  background: #25D366;
  color: #052e14;
  box-shadow: 0 0 40px -8px rgba(37, 211, 102, 0.45), var(--shadow-md);
}
.btn-whatsapp:hover { transform: translateY(-2px); opacity: 0.92; }

/* ===== Sections ===== */
.section { padding: 120px 0; position: relative; }
.section-alt {
  background: linear-gradient(180deg, var(--navy-soft) 0%, var(--black) 100%);
  box-shadow: var(--inset-top), 0 -1px 0 var(--border);
}
.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  font-weight: 600;
  margin-bottom: 14px;
}
.section h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
  margin-bottom: 24px;
  max-width: 640px;
}
.lead {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 720px;
  margin-bottom: 18px;
}

/* Misión / Visión */
.mv-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.mv-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--inset-top), var(--shadow-md);
}
.mv-icon { font-size: 1.4rem; color: var(--cyan); }
.mv-card h3 { margin: 12px 0 12px; font-size: 1.3rem; }
.mv-card p { color: var(--text-muted); font-size: 0.98rem; }

/* Servicios */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--inset-top), var(--shadow-md);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 217, 245, 0.3);
  background: var(--surface-strong);
  box-shadow: var(--inset-top), var(--shadow-glow-cyan), var(--shadow-lg);
}
.service-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--black), var(--blue-deep) 55%, var(--blue));
  display: flex; align-items: center; justify-content: center;
  color: var(--white-cold);
  margin-bottom: 20px;
  box-shadow: 0 8px 20px -6px rgba(0, 107, 255, 0.5);
}
.service-icon svg { width: 22px; height: 22px; }
.service-card h3 { font-size: 1.2rem; margin-bottom: 12px; }
.service-card p { color: var(--text-muted); font-size: 0.95rem; }

/* Equipo */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.team-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--inset-top), var(--shadow-md);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.team-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 107, 255, 0.35);
  box-shadow: var(--inset-top), var(--shadow-glow-blue), var(--shadow-lg);
}
.team-avatar {
  width: 88px; height: 88px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: var(--navy);
  font-family: var(--font-display);
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
  font-size: 1.3rem;
  box-shadow: 0 10px 28px -8px rgba(0, 107, 255, 0.55);
}
.team-avatar-photo {
  background: radial-gradient(circle at 50% 35%, var(--blue-deep), var(--black) 85%);
  padding: 0;
  overflow: hidden;
  border: 2px solid rgba(0, 217, 245, 0.35);
}
.team-avatar-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}
.team-card h3 { font-size: 1.15rem; margin-bottom: 4px; }
.team-role {
  color: var(--cyan);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.team-bio { color: var(--text-muted); font-size: 0.92rem; }

/* Contacto */
.section-contact {
  text-align: center;
  background: radial-gradient(ellipse 60% 70% at 50% 40%, rgba(0, 107, 255, 0.1), transparent 70%);
}
.contact-inner { display: flex; flex-direction: column; align-items: center; }
.contact-inner h2 { max-width: 100%; }
.contact-inner .lead { margin-bottom: 32px; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--black);
  padding: 48px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-logo { height: 30px; }
.footer-brand p { color: var(--text-muted); font-size: 0.85rem; margin-top: 8px; }
.footer-social { display: flex; gap: 14px; }
.social-icon {
  width: 38px; height: 38px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: default;
  opacity: 0.6;
}
.footer-copy { color: var(--text-muted); font-size: 0.82rem; }

/* ===== Reveal animation ===== */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .mv-grid, .services-grid, .team-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: rgba(6, 19, 41, 0.97);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px 24px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
  }
  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .main-nav a { width: 100%; padding: 14px 0; border-bottom: 1px solid var(--border); }
  .main-nav a:last-child { border-bottom: none; }
  .nav-cta { margin-top: 10px; text-align: center; }
  .nav-toggle { display: flex; }

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

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}