/* Base & Theme */
:root {
  --bg: #0b1020;
  --bg-soft: #0f172a;
  --card: #0f1a33cc;
  --txt: #e5e7eb;
  --muted: #a1a1aa;
  --brand: #7c3aed;
  --brand2: #06b6d4;
  --accent: #22c55e;
  --border: rgba(148, 163, 184, 0.15);
  --radius: 16px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --container: 1200px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --bg-soft: #f8fafc;
    --card: #ffffff;
    --txt: #0f172a;
    --muted: #475569;
    --border: rgba(15, 23, 42, 0.12);
  }
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
    Cantarell, "Helvetica Neue", Arial;
  background: radial-gradient(
      1200px 600px at 10% -10%,
      #1e293b 0%,
      transparent 60%
    ),
    radial-gradient(900px 500px at 110% 10%, #0ea5e9 0%, transparent 50%),
    var(--bg);
  color: var(--txt);
  line-height: 1.65;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Utils */
.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 20px;
}
.section {
  padding: 72px 0;
}
.lead {
  color: var(--muted);
  margin: 0 0 1.25rem;
}
.muted {
  color: var(--muted);
}
.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
  width: auto;
  height: auto;
  padding: 0.5rem 0.75rem;
  background: #111827;
  color: white;
  border-radius: 8px;
}

/* Logo color (SVG usa currentColor) */
.logo-icon {
  color: #ffffff; /* se verá blanco por defecto */
}
@media (prefers-color-scheme: light) {
  .logo-icon {
    color: #0f172a;
  }
}

/* Buttons & Chips */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  border: 1px solid transparent;
  padding: 0.85rem 1.1rem;
  border-radius: 12px;
  font-weight: 600;
  transition: 0.2s ease;
}
.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 35%, transparent);
}
.btn-primary {
  background: linear-gradient(90deg, var(--brand), var(--brand2));
  color: white;
}
.btn-primary:hover {
  transform: translateY(-1px);
  filter: saturate(1.1);
}
.btn-secondary {
  background: transparent;
  border-color: #334155;
  color: var(--txt);
}
.btn-secondary:hover {
  background: #111827;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0.6rem 0 0;
}
.chips li {
  border: 1px dashed var(--border);
  border-radius: 999px;
  padding: 0.25rem 0.6rem;
  color: var(--muted);
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: #111827;
  color: #e5e7eb;
  border: 1px solid #334155;
  border-radius: 999px;
  padding: 0.25rem 0.6rem;
  font-size: 0.9rem;
  text-decoration: none;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  inset-inline: 0;
  z-index: 50;
  backdrop-filter: saturate(140%) blur(8px);
  background: linear-gradient(
    180deg,
    rgba(10, 12, 22, 0.85),
    rgba(10, 12, 22, 0.35)
  );
  border-bottom: 1px solid var(--border);
  transition: background 0.25s ease, box-shadow 0.25s ease;
}
.navbar.scrolled {
  background: rgba(10, 12, 22, 0.96);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}
.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 0;
}
.brand {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  color: inherit;
  text-decoration: none;
}
.brand img {
  border-radius: 10px;
}
.nav-menu {
  display: flex;
  gap: 1rem;
  align-items: center;
}
.nav-link {
  padding: 0.5rem 0.75rem;
  border-radius: 10px;
  color: var(--muted);
  text-decoration: none;
}
.nav-link[aria-current="page"],
.nav-link:hover {
  color: white;
  background: rgba(124, 58, 237, 0.12);
}
.mobile-menu-toggle {
  display: none;
  border: 1px solid #334155;
  background: transparent;
  color: inherit;
  padding: 0.5rem 0.7rem;
  border-radius: 10px;
}
@media (max-width: 900px) {
  .mobile-menu-toggle {
    display: inline-flex;
  }
  .nav-menu {
    position: fixed;
    inset-inline: 0;
    top: 64px;
    background: linear-gradient(180deg, #0b1020, rgba(11, 16, 32, 0.97));
    flex-direction: column;
    padding: 1rem;
    display: none;
    border-bottom: 1px solid var(--border);
  }
  .nav-menu.open {
    display: flex;
  }
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.15);
  color: #bbf7d0;
  font-weight: 700;
  font-size: 0.95rem;
}
.hero-title {
  font-size: clamp(28px, 4.4vw, 52px);
  line-height: 1.1;
  margin: 1rem 0 0.75rem;
  font-weight: 800;
}
.grad {
  background: linear-gradient(90deg, var(--brand), var(--brand2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-subtitle {
  color: var(--muted);
  max-width: 60ch;
}
.hero-cta {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
  flex-wrap: wrap;
}
.hero-stat {
  background: linear-gradient(
    180deg,
    rgba(124, 58, 237, 0.1),
    rgba(6, 182, 212, 0.06)
  );
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.8rem 1rem;
  text-align: center;
}
.hero-stat strong {
  font-size: 1.25rem;
}

.hero-card {
  display: flex;
  gap: 1rem;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    700px 300px at 80% -10%,
    rgba(124, 58, 237, 0.15),
    transparent 60%
  );
}

/* Sections & Cards */
.section-head {
  text-align: center;
  margin-bottom: 1.25rem;
}
.section h2 {
  font-size: clamp(24px, 3vw, 36px);
  margin: 0 0 0.25rem;
}
.grid {
  display: grid;
  gap: 1rem;
}
.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
@media (max-width: 1000px) {
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 700px) {
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
  transform: translateY(-2px);
  border-color: rgba(124, 58, 237, 0.35);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}
.card h3 {
  margin: 0.2rem 0 0.4rem;
}
.card-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: #111827;
  color: #e5e7eb;
  border: 1px solid #334155;
  border-radius: 999px;
  padding: 0.25rem 0.6rem;
  font-size: 0.85rem;
}

/* About */
.about {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1.2fr 0.8fr;
}
@media (max-width: 900px) {
  .about {
    grid-template-columns: 1fr;
  }
}
.about-media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}
.about-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    600px 300px at 80% -10%,
    rgba(124, 58, 237, 0.15),
    transparent 60%
  );
}
.list {
  margin: 0.5rem 0 0;
  padding-left: 1rem;
}
.list li {
  margin: 0.25rem 0;
}

/* Features */
.feature {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.feature .num {
  font-weight: 800;
  opacity: 0.6;
  min-width: 2ch;
}

/* Contact */
.contact {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1.1fr 0.9fr;
}
@media (max-width: 900px) {
  .contact {
    grid-template-columns: 1fr;
  }
}
.form .field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}
.form label {
  font-weight: 600;
}
.form input,
.form select,
.form textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  border-radius: 12px;
  border: 1px solid #334155;
  background: #0b1226;
  color: inherit;
}
.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 40%, transparent);
  border-color: color-mix(in srgb, var(--brand) 40%, #334155);
}
.form-note {
  margin: 0.75rem 0 0;
}
.contact-info h3 {
  margin-top: 0;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(6, 182, 212, 0.05), transparent 40%),
    var(--bg-soft);
}
.foot {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1.4fr 1fr 1fr;
  padding: 32px 0;
}
@media (max-width: 900px) {
  .foot {
    grid-template-columns: 1fr;
  }
}
.foot-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 0 32px;
  flex-wrap: wrap;
}

/* Reveal on scroll */
[data-observe] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-observe].visible {
  opacity: 1;
  transform: none;
}