/* ==========================================================================
   Viçosa HUB — Layout (layout.css)
   Estrutura de página: skip-link, header, hero, seções, footer.
   ========================================================================== */

/* ---- Utilidades de layout ------------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-block: var(--space-9);
}

.section--tight {
  padding-block: var(--space-8);
}

.section--tint {
  background: var(--paper-tint);
}

.section--dark {
  background: var(--grad-brand);
  color: #eaf4ef;
}

.section--dark h1,
.section--dark h2,
.section--dark h3 {
  color: #ffffff;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---- Skip link ----------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: 50%;
  top: -60px;
  transform: translateX(-50%);
  z-index: 1200;
  background: var(--brand);
  color: #fff;
  padding: var(--space-2) var(--space-5);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: var(--fw-semibold);
  transition: top var(--dur) var(--ease);
}

.skip-link:focus {
  top: 0;
  color: #fff;
}

/* ---- Cabeçalho ----------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(150%) blur(12px);
  -webkit-backdrop-filter: saturate(150%) blur(12px);
  border-bottom: 1px solid var(--line-100);
  transition: box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
  background: rgba(255, 255, 255, 0.94);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav__link {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  color: var(--ink-700);
  font-weight: var(--fw-medium);
  font-size: var(--fs-400);
  line-height: 1;
  transition: color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.nav__link:hover {
  color: var(--green-700);
  background: var(--green-050);
}

.nav__link[aria-current="page"] {
  color: var(--green-800);
  background: var(--green-100);
  font-weight: var(--fw-semibold);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Botão hambúrguer */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  color: var(--green-800);
}

.nav-toggle:hover {
  background: var(--green-050);
}

.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.nav-toggle__bars::before {
  transform: translateY(-7px);
}
.nav-toggle__bars::after {
  transform: translateY(5px);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars {
  background: transparent;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before {
  transform: translateY(0) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
  transform: translateY(-2px) rotate(-45deg);
}

/* ---- Hero ---------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  color: #eaf4ef;
  background: var(--grad-hero);
  isolation: isolate;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
}

.hero__glow {
  position: absolute;
  z-index: -1;
  width: 46rem;
  height: 46rem;
  border-radius: 50%;
  filter: blur(10px);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  max-width: var(--container);
  margin-inline: auto;
  padding: clamp(var(--space-8), 8vw, var(--space-9)) var(--space-5);
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
}

.hero__content {
  max-width: 40rem;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #dbeee4;
  font-size: var(--fs-300);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-5);
}

.hero__eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold-400);
}

.hero h1 {
  font-size: var(--fs-hero);
  color: #ffffff;
  line-height: 1.08;
  letter-spacing: -0.01em;
}

.hero h1 .accent {
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lead {
  margin-top: var(--space-5);
  font-size: var(--fs-600);
  color: #cfe6da;
  line-height: var(--lh-normal);
}

.hero__actions {
  margin-top: var(--space-6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero__aside {
  position: relative;
}

.hero__stats {
  display: grid;
  gap: var(--space-3);
}

/* ---- Grades genéricas ---------------------------------------------------- */
.grid {
  display: grid;
  gap: var(--space-5);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.grid--auto {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.grid--auto-lg {
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

/* ---- Cabeçalho de seção -------------------------------------------------- */
.section-head {
  max-width: 56rem;
  margin-bottom: var(--space-7);
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.section-head__eyebrow {
  display: inline-block;
  font-size: var(--fs-300);
  font-weight: var(--fw-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal-600);
  margin-bottom: var(--space-3);
}

.section--dark .section-head__eyebrow {
  color: var(--gold-400);
}

.section-head h2 {
  font-size: var(--fs-900);
  letter-spacing: -0.01em;
}

.section-head p {
  margin-top: var(--space-4);
  font-size: var(--fs-600);
  color: var(--text-muted);
}

.section--dark .section-head p {
  color: #cfe6da;
}

/* ---- Rodapé -------------------------------------------------------------- */
.site-footer {
  background: var(--paper-dark);
  color: #c4d6cd;
  padding-block: var(--space-8) var(--space-6);
  font-size: var(--fs-400);
}

.site-footer a {
  color: #d8e8e0;
}

.site-footer a:hover {
  color: #ffffff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: var(--space-6);
}

.footer-brand__tag {
  margin-top: var(--space-3);
  max-width: 26rem;
  color: #9fb6ac;
}

.footer-col h3 {
  color: #ffffff;
  font-size: var(--fs-400);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
}

.footer-col ul {
  display: grid;
  gap: var(--space-2);
}

.footer-note {
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #8ba79c;
  font-size: var(--fs-300);
  line-height: var(--lh-normal);
}

.footer-bottom {
  margin-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  align-items: center;
  color: #8ba79c;
  font-size: var(--fs-300);
}

/* ---- Breadcrumb ---------------------------------------------------------- */
.breadcrumb {
  padding-block: var(--space-4);
  font-size: var(--fs-400);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-faint);
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.breadcrumb li:not(:last-child)::after {
  content: "›";
  color: var(--ink-300);
}

.breadcrumb a {
  color: var(--text-muted);
}

.breadcrumb [aria-current="page"] {
  color: var(--green-700);
  font-weight: var(--fw-semibold);
}

/* ---- Cabeçalho de página interna ---------------------------------------- */
.page-hero {
  position: relative;
  overflow: hidden;
  color: #eaf4ef;
  background: var(--grad-brand);
  isolation: isolate;
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.85;
}

.page-hero__inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: var(--space-8) var(--space-5);
}

.page-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-300);
  font-weight: var(--fw-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-400);
  margin-bottom: var(--space-3);
}

.page-hero h1 {
  color: #fff;
  font-size: var(--fs-900);
  max-width: 26ch;
}

.page-hero__lead {
  margin-top: var(--space-4);
  max-width: 60ch;
  font-size: var(--fs-600);
  color: #cfe6da;
}