/* ============================================================
   Dashbet — header.css
   Top bar · Navigation tabs · Mobile burger menu
   ============================================================ */

/* --- Top Header Bar --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-dark);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

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

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

.header-logo svg,
.header-logo img {
  height: 32px;
  width: auto;
}

.header-logo .logo-text {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-text);
}

.header-logo .logo-text span {
  color: var(--color-primary);
}

/* Search */
.header-search {
  flex: 1;
  max-width: 300px;
  position: relative;
  display: none;
}

.header-search input {
  width: 100%;
  padding: 0.5rem 1rem 0.5rem 2.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text);
  font-size: var(--fs-sm);
  transition: border-color var(--transition-fast);
}

.header-search input::placeholder {
  color: var(--color-muted);
}

.header-search input:focus {
  border-color: var(--color-primary);
}

.header-search .search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-muted);
  font-size: var(--fs-sm);
  pointer-events: none;
}

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

.header-actions .btn {
  font-size: var(--fs-xs);
  padding: 0.4rem 1rem;
  text-transform: uppercase;
}

.header-actions .btn-register {
  background: var(--color-primary);
  color: #000;
  font-weight: 700;
}

.header-actions .btn-login {
  border: 1.5px solid var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}

.header-actions .btn-login:hover {
  background: var(--color-primary);
  color: #000;
}

.header-actions .btn-deposit {
  background: var(--color-accent);
  color: #000;
  font-weight: 700;
}

.header-lang {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--fs-xs);
  color: var(--color-muted);
  text-transform: uppercase;
  font-weight: 600;
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

/* Burger Menu */
.burger-menu {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  cursor: pointer;
  z-index: 1100;
}

.burger-menu span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.burger-menu.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.burger-menu.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Navigation Tabs --- */
.site-nav {
  background: var(--color-dark);
  border-bottom: 1px solid var(--color-border);
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  z-index: 999;
}

.nav-inner {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  gap: 0;
}

.nav-inner::-webkit-scrollbar {
  display: none;
}

.nav-tab {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0 var(--space-md);
  height: var(--nav-height);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-muted);
  white-space: nowrap;
  transition: all var(--transition-fast);
  border-bottom: 2px solid transparent;
  flex-shrink: 0;
}

.nav-tab:hover {
  color: var(--color-text);
}

.nav-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.nav-tab .live-dot {
  width: 6px;
  height: 6px;
  background: var(--color-live);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* --- Mobile Slide Menu --- */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 360px;
  height: 100vh;
  background: var(--color-dark);
  z-index: 1050;
  transition: right var(--transition-base);
  overflow-y: auto;
  padding: calc(var(--header-height) + var(--space-lg)) var(--space-lg) var(--space-xl);
  border-left: 1px solid var(--color-border);
}

.mobile-menu.open {
  right: 0;
}

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-overlay);
  z-index: 1040;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

.mobile-menu .mobile-nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  font-size: var(--fs-md);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  min-height: 44px;
}

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

.mobile-menu .mobile-cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Mobile ≤600px */
@media (max-width: 600px) {
  .header-actions .btn-register,
  .header-actions .btn-login,
  .header-actions .btn-deposit,
  .header-lang {
    display: none;
  }

  .burger-menu {
    display: flex;
  }

  .header-search {
    display: none;
  }

  .site-header {
    height: var(--header-height);
  }
}

/* Tablet 601–1024px */
@media (min-width: 601px) and (max-width: 1024px) {
  .header-search {
    display: block;
    max-width: 200px;
  }

  .burger-menu {
    display: flex;
  }

  .header-actions .btn-deposit {
    display: none;
  }
}

/* Desktop ≥1025px */
@media (min-width: 1025px) {
  .header-search {
    display: block;
  }

  .burger-menu {
    display: none;
  }
}