/* ============================================================
   Header, Hero, Secciones, Footer
   ============================================================ */

/* ---------- HEADER ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  background: rgba(6, 8, 13, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.site-header.scrolled { box-shadow: var(--shadow-md); }
.header-inner { height: 100%; display: flex; align-items: center; gap: 22px; }

.brand { display: inline-flex; align-items: center; gap: 9px; font-size: 1.2rem; font-weight: 700; letter-spacing: -0.03em; }
.brand-mark { color: var(--blue-400); filter: drop-shadow(0 0 10px var(--blue-glow)); }
.brand-text strong { color: var(--blue-400); }

.main-nav { display: flex; gap: 6px; margin-right: auto; }
.main-nav a {
  padding: 8px 14px; border-radius: var(--r-pill);
  color: var(--text-muted); font-size: 0.94rem; font-weight: 500;
  transition: color var(--ease), background var(--ease);
}
.main-nav a:hover { color: var(--text); background: var(--surface); }
.main-nav a.active { color: var(--blue-300); background: var(--blue-soft); }

.header-search { display: flex; align-items: center; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-pill); overflow: hidden; }
.header-search input { width: 220px; padding: 9px 16px; background: none; border: none; font-size: 0.9rem; }
.header-search input::placeholder { color: var(--text-dim); }
.header-search button { padding: 9px 14px; color: var(--blue-300); font-size: 1.1rem; }
.header-search:focus-within { border-color: var(--border-2); }

.nav-toggle { display: none; font-size: 1.4rem; color: var(--text); padding: 4px 8px; }

/* ---------- HERO ---------- */
.hero { position: relative; overflow: hidden; padding: clamp(56px, 9vw, 120px) 0 80px; }
.hero-glow {
  position: absolute; inset: -40% 0 auto 0; height: 700px; pointer-events: none;
  background: radial-gradient(600px 320px at 50% 0%, var(--blue-glow), transparent 70%);
  opacity: 0.55;
}
.hero-inner { position: relative; max-width: 820px; }
.eyebrow {
  display: inline-block; font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--blue-300); background: var(--blue-soft); border: 1px solid var(--border-2);
  padding: 6px 14px; border-radius: var(--r-pill); margin-bottom: 22px;
}
.hero h1 { margin-bottom: 18px; }
.hero h1 br { display: block; }
.hero-sub { font-size: 1.12rem; color: var(--text-muted); max-width: 620px; margin-bottom: 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 34px; }

.hero-search { display: flex; gap: 8px; max-width: 540px; background: var(--surface); border: 1px solid var(--border); padding: 7px; border-radius: var(--r-md); margin-bottom: 40px; }
.hero-search input { flex: 1; padding: 11px 14px; background: none; border: none; font-size: 0.98rem; }
.hero-search input::placeholder { color: var(--text-dim); }

.hero-stats { display: flex; flex-wrap: wrap; gap: 38px; }
.hero-stats li { display: flex; flex-direction: column; }
.hero-stats strong { font-size: 1.7rem; color: var(--text); letter-spacing: -0.03em; }
.hero-stats span { font-size: 0.82rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.06em; }

/* ---------- SECCIONES ---------- */
.section { padding: 56px 0; }
.section-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 26px; flex-wrap: wrap; }
.link-more { color: var(--blue-300); font-weight: 600; font-size: 0.92rem; }
.link-more:hover { color: var(--blue); }

/* ---------- USECASES ---------- */
.usecase-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.usecase { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 26px 22px; transition: transform var(--ease), border-color var(--ease); }
.usecase:hover { transform: translateY(-4px); border-color: var(--border-2); }
.usecase-ico { font-size: 1.8rem; }
.usecase h3 { margin: 14px 0 8px; }
.usecase p { color: var(--text-muted); font-size: 0.92rem; }

/* ---------- PLANES ---------- */
.plans-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 960px; margin-inline: auto; }
.plan { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 30px 26px; }
.plan-featured { border-color: var(--blue-600); box-shadow: var(--shadow-blue); background: linear-gradient(180deg, var(--blue-soft), var(--surface) 40%); }
.plan-badge { position: absolute; top: -12px; right: 22px; background: var(--blue); color: #fff; font-size: 0.72rem; font-weight: 700; padding: 4px 12px; border-radius: var(--r-pill); letter-spacing: 0.04em; }
.plan h3 { font-size: 1.3rem; }
.plan-price { font-size: 2.4rem; font-weight: 800; margin: 10px 0 20px; letter-spacing: -0.03em; }
.plan-price span { font-size: 0.95rem; font-weight: 500; color: var(--text-dim); }
.plan ul { display: flex; flex-direction: column; gap: 10px; margin-bottom: 26px; }
.plan li { color: var(--text-muted); font-size: 0.94rem; padding-left: 24px; position: relative; }
.plan li::before { content: "✓"; position: absolute; left: 0; color: var(--blue-300); font-weight: 700; }

/* ---------- CTA ---------- */
.cta-band { margin: 40px 0; padding: 64px 0; text-align: center; background: linear-gradient(120deg, var(--blue-600), var(--blue) 60%, #0a2a8c); position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; inset: 0; background: radial-gradient(500px 200px at 50% 0%, rgba(255,255,255,0.18), transparent 70%); }
.cta-inner { position: relative; }
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,0.85); margin: 12px 0 26px; }
.cta-band .btn-primary { background: #fff; color: var(--blue-600); }
.cta-band .btn-primary:hover { background: #eef3ff; }

/* ---------- FOOTER ---------- */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-2); margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 30px; padding: 50px 20px 34px; }
.footer-brand .muted { margin-top: 12px; font-size: 0.9rem; max-width: 260px; }
.site-footer h4 { font-size: 0.95rem; margin-bottom: 14px; }
.site-footer ul { display: flex; flex-direction: column; gap: 9px; }
.site-footer ul a { color: var(--text-muted); font-size: 0.9rem; }
.site-footer ul a:hover { color: var(--blue-300); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 20px; border-top: 1px solid var(--border); color: var(--text-dim); font-size: 0.85rem; }
.footer-bottom a:hover { color: var(--blue-300); }
.site-footer.slim { margin-top: 60px; }

/* ---------- BROWSE LAYOUT ---------- */
.browse-bar { border-bottom: 1px solid var(--border); background: var(--bg-2); }
.browse-bar-inner { padding: 26px 20px; }
.browse-bar-inner h1 { font-size: 1.7rem; }
.browse-layout { display: grid; grid-template-columns: 248px 1fr; gap: 28px; padding-top: 28px; padding-bottom: 70px; align-items: start; }

@media (max-width: 980px) {
  .usecase-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .main-nav, .header-search { display: none; }
  .nav-toggle { display: block; margin-left: auto; }
  .site-header.menu-open .main-nav {
    display: flex; flex-direction: column; position: absolute; top: var(--header-h); left: 0; right: 0;
    background: var(--bg-2); border-bottom: 1px solid var(--border); padding: 14px; gap: 4px;
  }
  .plans-grid { grid-template-columns: 1fr; max-width: 420px; }
  .browse-layout { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .usecase-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
}