/* ===========================
   GRID DYNAMICS — Landing CSS
   =========================== */

/* NAV */
.landing-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(5, 10, 13, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex; align-items: center; gap: var(--space-6);
  max-width: 1200px; margin-inline: auto;
  padding: var(--space-3) var(--space-6);
}
.nav-logo {
  display: flex; align-items: center; gap: var(--space-3);
  text-decoration: none; flex-shrink: 0;
}
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-name {
  font-family: var(--font-ui); font-size: var(--text-lg);
  font-weight: 700; color: var(--cyan); letter-spacing: 0.12em;
}
.logo-sub {
  font-family: var(--font-ui); font-size: var(--text-xs);
  color: var(--text3); letter-spacing: 0.2em; text-transform: uppercase;
}
.nav-links { display: flex; list-style: none; gap: var(--space-1); }
.nav-link-item {
  padding: var(--space-2) var(--space-4);
  color: var(--text2); font-size: var(--text-sm); font-weight: 500;
  border-radius: var(--radius); transition: all 0.2s;
  position: relative; letter-spacing: 0.04em;
}
.nav-link-item::after {
  content: ''; position: absolute; bottom: 4px; left: 50%; right: 50%;
  height: 1px; background: var(--cyan); transition: all 0.2s var(--ease-cyber);
}
.nav-link-item:hover { color: var(--cyan); }
.nav-link-item:hover::after { left: 16px; right: 16px; }
.nav-cta { display: flex; align-items: center; gap: var(--space-3); margin-left: auto; }
.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--text-sm); }
.hamburger {
  display: none; color: var(--text2); font-size: 24px;
  padding: var(--space-2); border-radius: var(--radius);
}
.hamburger:hover { color: var(--cyan); }
.mobile-menu {
  background: var(--surface); border-top: 1px solid var(--border);
  padding: var(--space-4) var(--space-6);
}
.mobile-menu ul { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); }
.mobile-menu a { color: var(--text); display: block; padding: var(--space-2); }
.mobile-menu a:hover { color: var(--cyan); }

/* HERO */
.hero {
  min-height: 100dvh; display: flex; align-items: center;
  padding-top: 80px; position: relative; overflow: hidden;
}
.hero-grid-lines { position: absolute; inset: 0; pointer-events: none; }
.h-line {
  position: absolute; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,229,255,0.08), transparent);
}
.v-line {
  position: absolute; top: 0; bottom: 0; width: 1px;
  background: linear-gradient(180deg, transparent, rgba(0,229,255,0.08), transparent);
}
.hero-content {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr; gap: var(--space-8);
  padding-block: var(--space-16);
}
.hero-tag { margin-bottom: var(--space-2); }
.hero-title {
  font-family: var(--font-ui); font-weight: 700; line-height: 1.0;
  display: flex; flex-direction: column; gap: var(--space-1);
  margin-bottom: var(--space-6);
}
.hero-title-top {
  font-size: var(--text-xl); color: var(--text2);
  letter-spacing: 0.15em; text-transform: uppercase;
}
.hero-title-main {
  font-size: var(--text-hero); color: var(--text);
  letter-spacing: 0.05em; text-transform: uppercase;
  text-shadow: 0 0 40px rgba(0,229,255,0.2);
}
.hero-title-accent {
  font-size: var(--text-2xl); color: var(--cyan);
  letter-spacing: 0.1em; text-transform: uppercase;
  text-shadow: 0 0 20px rgba(0,229,255,0.5);
}
.hero-subtitle {
  font-size: var(--text-lg); color: var(--text2); max-width: 600px;
  line-height: 1.7; margin-bottom: var(--space-8);
}
.text-cyan { color: var(--cyan); }
.hero-actions {
  display: flex; flex-wrap: wrap; gap: var(--space-4);
  margin-bottom: var(--space-10);
}
.btn-lg { padding: var(--space-3) var(--space-8); font-size: var(--text-base); }
.hero-stats {
  display: flex; align-items: center; gap: var(--space-8);
  padding: var(--space-6); background: var(--card);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  width: fit-content;
}
.stat-item { text-align: center; }
.stat-num {
  display: block; font-size: var(--text-2xl); font-weight: 700;
  color: var(--cyan); font-family: var(--font-ui);
  text-shadow: 0 0 15px rgba(0,229,255,0.4);
}
.stat-label {
  font-size: var(--text-xs); color: var(--text3);
  text-transform: uppercase; letter-spacing: 0.06em; line-height: 1.4;
}
.stat-divider { width: 1px; height: 48px; background: var(--border); }
.hero-diagram {
  position: absolute; right: 5%; top: 50%; transform: translateY(-50%);
  width: min(420px, 40vw); opacity: 0.6;
}
.network-svg { width: 100%; filter: drop-shadow(0 0 10px rgba(0,229,255,0.2)); }

/* SECTIONS comunes */
.section-features, .section-modules, .section-about, .section-cta {
  padding-block: clamp(var(--space-12), 6vw, var(--space-16));
}
.section-header {
  text-align: center; margin-bottom: var(--space-12); max-width: 700px; margin-inline: auto;
}
.section-header h2 { font-size: var(--text-2xl); margin-block: var(--space-4); }
.section-header p { color: var(--text2); line-height: 1.7; }
.section-tag {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-xs); font-weight: 700; color: var(--cyan);
  letter-spacing: 0.15em; text-transform: uppercase; margin-bottom: var(--space-2);
}

/* FEATURES GRID */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(320px,100%), 1fr));
  gap: var(--space-4);
}
.feature-card { display: flex; flex-direction: column; gap: var(--space-3); }
.feature-card.featured { border-color: rgba(0,229,255,0.35); }
.feature-icon {
  width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
  background: var(--p-green); border: 1px solid rgba(0,229,255,0.2);
  border-radius: var(--radius); color: var(--cyan); font-size: 22px;
  flex-shrink: 0;
}
.feature-card h3 { font-size: var(--text-lg); font-weight: 700; color: var(--text); }
.feature-card p { color: var(--text2); font-size: var(--text-sm); line-height: 1.6; flex: 1; }
.feature-tag { margin-top: auto; }

/* MODULES */
.section-modules { background: rgba(0,229,255,0.01); }
.modules-layout { display: grid; grid-template-columns: 1fr 1.2fr; gap: var(--space-6); }
.modules-list { display: flex; flex-direction: column; gap: var(--space-2); }
.module-item {
  display: flex; align-items: center; gap: var(--space-4);
  padding: var(--space-4); background: var(--card);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  cursor: pointer; text-align: left; transition: all 0.2s var(--ease-cyber);
}
.module-item:hover, .module-item.active {
  border-color: var(--border-bright); background: var(--p-blue);
}
.module-item.active .module-icon { color: var(--cyan); background: var(--p-green); }
.module-icon {
  width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
  background: var(--surface); border-radius: var(--radius);
  color: var(--text2); font-size: 20px; flex-shrink: 0; transition: all 0.2s;
}
.module-info { flex: 1; }
.module-info strong { display: block; color: var(--text); font-size: var(--text-sm); }
.module-info span { color: var(--text3); font-size: var(--text-xs); }
.module-arrow { color: var(--text3); font-size: 16px; }
.module-item.active .module-arrow { color: var(--cyan); }
.modules-detail { padding: var(--space-8); }
.modules-detail h3 {
  display: flex; align-items: center; gap: var(--space-3);
  font-size: var(--text-xl); color: var(--cyan); margin-bottom: var(--space-4);
}
.modules-detail p { color: var(--text2); line-height: 1.7; margin-bottom: var(--space-6); }
.module-features-list { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); }
.module-features-list li {
  display: flex; align-items: center; gap: var(--space-3);
  color: var(--text); font-size: var(--text-sm);
}
.module-features-list i { color: var(--cyan); font-size: 18px; flex-shrink: 0; }

/* ABOUT */
.about-layout { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); align-items: start; }
.about-info .section-tag { margin-bottom: var(--space-4); }
.about-info h2 { font-size: var(--text-2xl); margin-bottom: var(--space-6); }
.about-info > p { color: var(--text2); line-height: 1.7; margin-bottom: var(--space-8); }
.about-pillars { display: flex; flex-direction: column; gap: var(--space-6); }
.pillar { display: flex; gap: var(--space-4); align-items: flex-start; }
.pillar i { font-size: 24px; color: var(--cyan); flex-shrink: 0; margin-top: 2px; }
.pillar strong { display: block; color: var(--text); font-size: var(--text-base); margin-bottom: var(--space-1); }
.pillar p { color: var(--text2); font-size: var(--text-sm); line-height: 1.6; max-width: 100%; }
.team-title { font-size: var(--text-lg); color: var(--text); margin-bottom: var(--space-6); }
.team-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.team-member {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3); background: var(--card);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  transition: border-color 0.2s;
}
.team-member:hover { border-color: rgba(0,229,255,0.3); }
.member-avatar { font-size: 28px; color: var(--cyan-dark); flex-shrink: 0; }
.member-info strong { display: block; font-size: var(--text-sm); color: var(--text); }
.member-info span { font-size: var(--text-xs); color: var(--text3); }

/* CTA */
.cta-box {
  text-align: center; padding: var(--space-12);
  position: relative; overflow: hidden;
}
.cta-glow {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(0,229,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.cta-icon { font-size: 56px; color: var(--cyan); margin-bottom: var(--space-4); }
.cta-box h2 { font-size: var(--text-2xl); margin-bottom: var(--space-4); }
.cta-box p { color: var(--text2); max-width: 50ch; margin-inline: auto; margin-bottom: var(--space-8); }
.cta-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: var(--space-4); }

/* FOOTER */
.landing-footer {
  background: var(--surface); border-top: 1px solid var(--border);
  padding-block: var(--space-10);
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: var(--space-10); flex-wrap: wrap; margin-bottom: var(--space-8);
}
.footer-brand { max-width: 320px; }
.footer-brand p { color: var(--text3); font-size: var(--text-sm); margin-top: var(--space-3); }
.footer-links { display: flex; gap: var(--space-10); }
.footer-links > div strong { display: block; color: var(--text); font-size: var(--text-sm); margin-bottom: var(--space-4); }
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: var(--space-2); }
.footer-links a { color: var(--text3); font-size: var(--text-sm); }
.footer-links a:hover { color: var(--cyan); }
.footer-copy { color: var(--text3); font-size: var(--text-xs); text-align: center; }

/* Responsive */
@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; align-items: center; margin-left: auto; }
  .mobile-menu:not([hidden]) { display: block; }
  .hero-content { padding-top: var(--space-8); }
  .hero-title-main { font-size: clamp(2.5rem, 12vw, 5rem); }
  .hero-diagram { display: none; }
  .hero-stats { flex-direction: column; gap: var(--space-4); }
  .stat-divider { width: 80px; height: 1px; }
  .modules-layout, .about-layout { grid-template-columns: 1fr; }
  .team-list { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; }
  .footer-links { flex-wrap: wrap; gap: var(--space-6); }
}