.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--paper-2) 92%, transparent);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
  min-height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.nav-logo {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.nav-brand-text {
  display: flex;
  flex-direction: column;
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.1;
}

.nav-brand-text span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-top: 0.15rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a.is-active {
  color: var(--accent);
}

.nav-links a.btn-primary,
.nav-links a.btn-primary:hover {
  color: #fff;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink);
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius);
  font: inherit;
  cursor: pointer;
}

.main-content {
  min-height: calc(100vh - var(--nav-h) - 140px);
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 4rem;
  background: var(--ink);
  color: rgba(255, 255, 255, 0.82);
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
}

.site-footer a {
  color: var(--accent-light);
}

.footer-credit {
  flex-basis: 100%;
  margin: 0;
  text-align: right;
  font-size: 0.7rem;
  opacity: 0.6;
}

.page {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 3rem;
}

.is-home .site-header {
  position: fixed;
  inset: 0 0 auto 0;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  border-bottom-color: transparent;
  backdrop-filter: blur(10px);
}

.is-home .site-header.is-solid {
  background: color-mix(in srgb, var(--paper-2) 92%, transparent);
  border-bottom-color: var(--border);
  backdrop-filter: blur(10px);
}

.is-home .nav {
  max-width: none;
  justify-content: flex-end;
  padding-left: 2rem;
  padding-right: 2rem;
}

.is-home .nav-brand {
  display: none;
}

.is-home .site-header:not(.is-solid) .nav-links > li > a:not(.btn) {
  color: var(--ink-soft);
}

.is-home .site-header:not(.is-solid) .nav-links > li > a:not(.btn):hover,
.is-home .site-header:not(.is-solid) .nav-links > li > a:not(.btn).is-active {
  color: var(--accent);
}

.is-home .site-footer {
  margin-top: 0;
}

.hero {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: calc(var(--nav-h) + 1.5rem) 1.5rem 2.5rem;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  position: relative;
  background: var(--paper);
}

.hero-content {
  position: relative;
  z-index: 1;
  color: var(--text);
  width: 100%;
  max-width: 64rem;
  margin: 0 auto;
  text-align: center;
}

.hero-esquema {
  width: min(100%, 58rem);
  height: auto;
  margin: 0 auto 1.25rem;
  animation: heroFade 1.1s ease both;
}

.hero-lead {
  font-size: clamp(1.45rem, 2.8vw, 1.9rem);
  line-height: 1.45;
  margin: 0 0 0.5rem;
  color: var(--ink);
  text-wrap: balance;
  animation: rise 1s ease 0.1s both;
}

.hero .btn-esquema {
  animation: heroFade 1.1s ease 0.2s both;
}

@keyframes heroFade {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}