/**
 * CONECTE-SE — SENAC SERGIPE 2026
 * Layout CSS (layout.css)
 * Containers, Seções Estruturais, Header e Grid System
 */

.site-container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.section-padding {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  position: relative;
}

@media (min-width: 992px) {
  .section-padding {
    padding-top: var(--space-4xl);
    padding-bottom: var(--space-4xl);
  }
}

/* ==========================================================================
   HEADER PRINCIPAL & NAVEGAÇÃO
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  transition: background-color var(--transition-normal), backdrop-filter var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  background-color: transparent;
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background-color: rgba(5, 11, 26, 0.88);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border-bottom-color: var(--color-border-subtle);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  text-decoration: none;
}

.brand-logo-img {
  height: 42px;
  width: auto;
  object-fit: contain;
}

.brand-divider {
  width: 1px;
  height: 28px;
  background-color: var(--color-border-medium);
}

.brand-event-badge {
  display: flex;
  flex-direction: column;
}

.brand-event-name {
  font-family: var(--font-display);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-text-primary);
  letter-spacing: 0.05em;
  line-height: 1.1;
  text-transform: uppercase;
}

.brand-event-edition {
  font-size: var(--font-size-xs);
  color: var(--color-yellow-energy);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
}

/* Navegação Desktop */
.nav-desktop {
  display: none;
}

@media (min-width: 992px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
  }
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-cyan-glow);
  transition: width var(--transition-normal);
  border-radius: var(--radius-pill);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

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

/* Botão Mobile Toggle */
.mobile-nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border-medium);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-text-primary);
  padding: 0;
  transition: background var(--transition-fast);
}

.mobile-nav-toggle:hover {
  background: rgba(255, 255, 255, 0.12);
}

@media (min-width: 992px) {
  .mobile-nav-toggle {
    display: none;
  }
}

.hamburger-line {
  width: 22px;
  height: 2px;
  background-color: var(--color-text-primary);
  border-radius: var(--radius-pill);
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.hamburger-line:not(:last-child) {
  margin-bottom: 5px;
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Drawer Mobile */
.mobile-drawer {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-bg-deep);
  background-image: radial-gradient(circle at top right, rgba(30, 111, 255, 0.15), transparent 70%);
  z-index: 999;
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--transition-smooth), opacity var(--transition-smooth), visibility var(--transition-smooth);
  overflow-y: auto;
}

.mobile-drawer.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.mobile-nav-link {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-secondary);
  display: block;
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--color-border-subtle);
}

.mobile-nav-link:hover,
.mobile-nav-link:focus {
  color: var(--color-yellow-energy);
  padding-left: var(--space-xs);
}

.mobile-drawer-footer {
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* ==========================================================================
   CABEÇALHOS DE SEÇÃO PADRÃO
   ========================================================================== */
.section-header {
  margin-bottom: var(--space-2xl);
  position: relative;
}

.section-header.text-center {
  text-align: center;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px 14px;
  background: rgba(0, 210, 255, 0.1);
  border: 1px solid var(--color-border-glow);
  color: var(--color-cyan-bright);
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-sm);
}

.section-tag.tag-orange {
  background: rgba(255, 106, 0, 0.12);
  border-color: var(--color-border-orange);
  color: var(--color-orange-brand);
}

.section-tag.tag-purple {
  background: rgba(126, 34, 206, 0.15);
  border-color: rgba(168, 85, 247, 0.4);
  color: var(--color-purple-light);
}

.section-title {
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-snug);
  max-width: 65ch;
}

.section-header.text-center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}