/* ==========================================================================
   Header / Nav
   ========================================================================== */

.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 500;
  padding-block: var(--sp-md);
  background: var(--ivory);
  border-bottom: 1px solid var(--line);
  transition: padding var(--dur-med) var(--ease-out),
              box-shadow var(--dur-med) var(--ease-out);
}
.site-header.is-scrolled {
  padding-block: var(--sp-xs);
  box-shadow: 0 12px 30px -18px rgba(31,91,90,.25);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-md);
  position: relative;
  z-index: 1;
}

.brand {
  display: flex;
  align-items: center;
  gap: .7rem;
  color: var(--teal);
}
.brand img {
  width: 42px; height: 42px; border-radius: 50%;
}
.brand--mark img { width: 60px; height: 60px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-size: 1.02rem; font-weight: 700; letter-spacing: .01em; color: var(--teal); }
.brand-text span { font-size: .68rem; color: var(--camel-text); font-weight: 600; letter-spacing: .06em; text-transform: uppercase; }

.nav-links {
  display: none;
  align-items: center;
  gap: var(--sp-lg);
}
.nav-links a {
  color: var(--teal);
  font-size: var(--step-xs);
  font-weight: 500;
  position: relative;
  padding-block: .3rem;
  transition: color var(--dur-fast);
}
.nav-links a:hover { color: var(--terracotta-text); }
.nav-links a::after {
  content: '';
  position: absolute; left: 0; right: 100%; bottom: -2px;
  height: 2px; background: var(--amber); border-radius: 2px;
  transition: right var(--dur-med) var(--ease-out);
}
.nav-links a:hover::after { right: 0; }

.nav-actions { display: flex; align-items: center; gap: var(--sp-sm); }
.nav-cta { display: none; }

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  align-items: center;
}
.nav-toggle span {
  width: 18px; height: 2px; background: var(--teal);
  border-radius: 2px; transition: transform var(--dur-fast), opacity var(--dur-fast);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: 0; z-index: 480;
  background: var(--teal-deeper);
  display: flex; flex-direction: column;
  padding: 6.5rem var(--gutter) var(--sp-xl);
  gap: var(--sp-lg);
  transform: translateY(-8px);
  opacity: 0; visibility: hidden;
  transition: opacity var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out), visibility 0s var(--dur-med);
}
.mobile-menu.is-open {
  opacity: 1; visibility: visible; transform: none;
  transition: opacity var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out), visibility 0s;
}
.mobile-menu a {
  font-size: var(--step-xl);
  font-weight: 600;
  color: var(--on-dark);
}
.mobile-menu .btn { align-self: flex-start; margin-top: var(--sp-md); }

@media (min-width: 900px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-flex; }
  .nav-toggle { display: none; }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: var(--ivory);
  color: var(--ink);
  padding-top: 7.5rem;
  padding-bottom: var(--sp-2xl);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  gap: var(--sp-2xl);
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .6em;
  font-size: var(--step-xs);
  font-weight: 600;
  color: var(--terracotta-text);
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: var(--sp-md);
}
.hero-eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 0 3px var(--ivory), 0 0 0 4px var(--amber); }

.hero-title {
  font-size: var(--step-3xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.06;
  max-width: 15ch;
  color: var(--teal);
}
.hero-title .line { display: block; overflow: hidden; }
.hero-title .line span { display: inline-block; will-change: transform; }
.hero-title .accent {
  text-decoration: underline;
  text-decoration-color: var(--amber);
  text-decoration-thickness: .08em;
  text-underline-offset: .12em;
}

.hero-sub {
  margin-top: var(--sp-md);
  font-size: var(--step-md);
  color: var(--ink-soft);
  max-width: 46ch;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-sm);
  margin-top: var(--sp-xl);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-lg);
  margin-top: var(--sp-2xl);
  padding-top: var(--sp-lg);
  border-top: 1px solid var(--line);
}
.hero-meta-item strong {
  display: block;
  font-size: var(--step-lg);
  font-weight: 700;
  color: var(--teal);
}
.hero-meta-item span {
  font-size: var(--step-2xs);
  color: var(--ink-soft);
}

.hero-art {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 520px;
  justify-self: center;
  width: 100%;
  border-radius: 50% 50% var(--radius-lg) var(--radius-lg);
  border: 2px solid var(--camel);
  background: var(--ivory-soft);
  overflow: hidden;
}
.hero-art svg { width: 100%; height: 100%; overflow: visible; }

.hero-scrollcue {
  position: absolute;
  left: var(--gutter);
  bottom: var(--sp-lg);
  display: none;
  align-items: center;
  gap: .6rem;
  font-size: var(--step-2xs);
  color: var(--ink-soft);
  z-index: 3;
}
.hero-scrollcue .line { width: 1px; height: 34px; background: var(--line); position: relative; overflow: hidden; }
.hero-scrollcue .line::after {
  content: ''; position: absolute; top: -100%; left: 0; width: 100%; height: 100%;
  background: var(--amber-soft);
  animation: scrollcue 2.2s var(--ease-in-out) infinite;
}
@keyframes scrollcue { to { top: 100%; } }

@media (min-width: 860px) {
  .hero-grid { grid-template-columns: 1.15fr 0.85fr; }
  .hero-scrollcue { display: flex; }
}

/* ---- Menú: submenú de Soluciones (hover y teclado) ---- */
.nav-group { position: relative; }
.nav-sub {
  position: absolute;
  top: calc(100% + 14px);
  left: -1rem;
  min-width: 220px;
  background: var(--ivory);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: .5rem;
  box-shadow: 0 20px 40px -28px rgba(31,91,90,.35);
  opacity: 0; visibility: hidden; transform: translateY(-4px);
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), visibility 0s var(--dur-fast);
}
.nav-sub::before { content: ''; position: absolute; left: 0; right: 0; top: -16px; height: 16px; }
.nav-group:hover .nav-sub,
.nav-group:focus-within .nav-sub {
  opacity: 1; visibility: visible; transform: none;
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), visibility 0s;
}
.nav-sub a { display: block; padding: .55rem .8rem; border-radius: var(--radius-sm); }
.nav-sub a::after { display: none; }
.nav-sub a:hover { background: var(--teal); color: var(--ivory); }

.mobile-sub { display: grid; gap: .6rem; margin-top: -1rem; padding-left: 1rem; border-left: 2px solid var(--amber); }
.mobile-menu .mobile-sub a { font-size: var(--step-md); font-weight: 500; }

/* ---- Hero: línea secundaria y movimiento sutil del sol ---- */
.hero-note {
  margin-top: var(--sp-sm);
  font-size: var(--step-xs);
  font-weight: 500;
  color: var(--teal);
  letter-spacing: .02em;
  max-width: 46ch;
}
.hero-sun, .hero-orbit { transform-box: fill-box; transform-origin: center; }
@media (prefers-reduced-motion: no-preference) {
  .hero-sun { animation: sunRise 7s var(--ease-in-out) infinite alternate; }
  .hero-orbit { animation: orbitTurn 90s linear infinite; }
}
@keyframes sunRise { from { transform: translateY(4px); } to { transform: translateY(-6px); } }
@keyframes orbitTurn { to { transform: rotate(360deg); } }