/* ============================================
   BETANO BRASIL — Header CSS
   Orange header with Betano branding
   ============================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-primary);
  z-index: 1000;
  display: flex;
  align-items: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.header-container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* --- Logo --- */
.header-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.header-logo svg {
  height: 28px;
  width: auto;
}

.header-logo .wordmark {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.header-logo .wordmark:hover {
  text-decoration: none;
  opacity: 0.9;
}

/* --- Main Nav (Desktop) --- */
.main-nav {
  display: none;
  align-items: center;
  gap: 2px;
  height: 100%;
}

.main-nav a {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 var(--space-md);
  color: var(--color-white);
  font-size: 0.8125rem;
  font-weight: 600;
  white-space: nowrap;
  text-decoration: none;
  transition: background var(--transition);
  border-radius: var(--radius-sm);
}

.main-nav a:hover {
  background: rgba(255,255,255,0.15);
  text-decoration: none;
  color: var(--color-white);
}

.main-nav a.active {
  background: rgba(255,255,255,0.2);
}

/* --- Header Right Actions --- */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.header-icon-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-white);
  transition: background var(--transition);
  font-size: 1.125rem;
}

.header-icon-btn:hover {
  background: rgba(255,255,255,0.15);
  color: var(--color-white);
}

.btn-register {
  display: none;
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.6);
  padding: 6px 16px;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 700;
  white-space: nowrap;
  transition: all var(--transition);
  text-decoration: none;
  min-height: 36px;
}

.btn-register:hover {
  border-color: var(--color-white);
  background: rgba(255,255,255,0.1);
  color: var(--color-white);
  text-decoration: none;
}

.btn-enter {
  background: var(--color-accent);
  color: var(--color-white);
  border: 2px solid var(--color-accent);
  padding: 6px 16px;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 700;
  white-space: nowrap;
  transition: all var(--transition);
  text-decoration: none;
  min-height: 36px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-enter:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-white);
  text-decoration: none;
}

/* --- Mobile Hamburger --- */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Mobile Menu Overlay --- */
.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-slow);
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* --- Mobile Menu Panel --- */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  height: 100vh;
  background: var(--color-bg);
  z-index: 1001;
  transform: translateX(-100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
  padding-top: var(--header-height);
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu-header {
  padding: var(--space-md) var(--space-lg);
  background: var(--color-primary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.mobile-menu-header .wordmark {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-white);
}

.mobile-menu-section {
  padding: var(--space-md) var(--space-lg);
}

.mobile-menu-section-title {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  margin-bottom: var(--space-sm);
}

.mobile-menu-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  color: var(--color-text);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
  min-height: 44px;
}

.mobile-menu-link:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.mobile-menu-link:last-child {
  border-bottom: none;
}

.mobile-menu-cta {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
}

.mobile-menu-cta .btn {
  flex: 1;
  text-align: center;
  font-size: 0.875rem;
}

.mobile-menu-disclaimer {
  padding: var(--space-md) var(--space-lg);
  font-size: 0.75rem;
  color: var(--color-muted);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

/* --- Desktop: Show nav and buttons --- */
@media (min-width: 1025px) {
  .hamburger { display: none; }
  .main-nav { display: flex; }
  .header-icon-btn { display: flex; }
  .btn-register { display: inline-flex; }
}

/* Tablet: show hamburger, hide nav */
@media (min-width: 601px) and (max-width: 1024px) {
  .hamburger { display: flex; }
  .main-nav { display: none; }
  .header-icon-btn { display: none; }
  .btn-register { display: none; }
}

/* Mobile: show hamburger, hide nav */
@media (max-width: 600px) {
  .site-header {
    height: var(--header-height);
  }
  
  .hamburger { display: flex; }
  .main-nav { display: none; }
  .header-icon-btn { display: none; }
  .btn-register { display: none; }
  
  .header-logo .wordmark {
    font-size: 1.125rem;
  }
  
  .btn-enter {
    padding: 5px 12px;
    font-size: 0.75rem;
    min-height: 32px;
  }
}

/* --- Responsive refinements --- */
@media (max-width: 1024px) {
  .mobile-menu { width: min(320px, 88vw); padding-bottom: env(safe-area-inset-bottom); }
  .mobile-menu-overlay { -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px); }
}

@media (max-width: 380px) {
  .header-container { padding-left: 8px; padding-right: 8px; }
  .header-logo svg { width: 96px; }
  .btn-enter { padding-left: 8px; padding-right: 8px; }
  .mobile-menu-cta { flex-direction: column; }
}