/* ============================================================
   Header & Sidebar Styles
   ============================================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-dark);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  z-index: 8000;
  display: flex;
  align-items: center;
  padding: 0 1rem;
}

.header-inner {
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
  gap: 1rem;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
  text-decoration: none;
}
.logo-icon {
  width: 32px;
  height: 32px;
}
.logo-text {
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.02em;
}

/* Search */
.header-search {
  display: flex;
  align-items: center;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 0 0.75rem;
  height: 36px;
  flex: 1;
  max-width: 320px;
}
.header-search svg {
  width: 16px;
  height: 16px;
  color: var(--color-muted);
  flex-shrink: 0;
}
.header-search input {
  width: 100%;
  padding: 0 0.5rem;
  background: transparent;
  color: var(--color-text);
  font-size: 0.85rem;
}
.header-search input::placeholder {
  color: var(--color-muted);
}

/* Right actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

.header-actions .btn-login {
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
  border: 1.5px solid var(--color-muted);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  transition: border-color var(--transition), color var(--transition);
}
.header-actions .btn-login:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.header-actions .btn-register {
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
  background: var(--color-primary);
  color: #000;
  border-radius: var(--radius-sm);
  font-weight: 600;
}
.header-actions .btn-register:hover {
  background: #1fa845;
}

.header-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  transition: color var(--transition), background var(--transition);
}
.header-icon-btn:hover {
  color: var(--color-text);
  background: rgba(255,255,255,0.05);
}
.header-icon-btn svg {
  width: 20px;
  height: 20px;
}

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 24px;
  cursor: pointer;
  padding: 4px 0;
}
.burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.burger.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}
.burger.active span:nth-child(2) {
  opacity: 0;
}
.burger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

/* Sidebar */
.sidebar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--color-dark);
  border-right: 1px solid rgba(255,255,255,0.06);
  overflow-y: auto;
  z-index: 7000;
  padding: 1rem 0;
  transition: transform 0.3s ease;
}

.sidebar-widget {
  padding: 0.75rem 1rem;
  margin: 0 0.75rem 0.75rem;
  background: var(--color-surface);
  border-radius: var(--radius-md);
}
.sidebar-widget .widget-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--color-muted);
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}
.sidebar-widget .token-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.sidebar-widget .token-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 800;
  color: #000;
}
.sidebar-widget .token-name {
  font-weight: 600;
  font-size: 0.9rem;
}
.sidebar-widget .token-price {
  font-size: 0.8rem;
  color: var(--color-accent);
  margin-left: auto;
}

.sidebar-nav {
  padding: 0 0.5rem;
}
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  font-size: 0.88rem;
  font-weight: 500;
  transition: all var(--transition);
}
.sidebar-nav a:hover,
.sidebar-nav a.active {
  color: var(--color-text);
  background: rgba(255,255,255,0.04);
}
.sidebar-nav a.active {
  color: var(--color-accent);
}
.sidebar-nav a svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Top nav tabs */
.top-tabs {
  position: fixed;
  top: var(--header-height);
  left: var(--sidebar-width);
  right: 0;
  background: var(--color-dark);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  z-index: 6000;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.top-tabs::-webkit-scrollbar { display: none; }

.top-tabs-inner {
  display: flex;
  align-items: center;
  gap: 0;
  min-width: max-content;
  padding: 0 0.5rem;
}
.top-tabs a {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-muted);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}
.top-tabs a:hover {
  color: var(--color-text);
}
.top-tabs a.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}
.top-tabs a .dot-live {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-live);
}

/* Main layout */
.main-wrap {
  margin-top: var(--header-height);
  margin-left: var(--sidebar-width);
  padding-top: 44px; /* top tabs height */
  min-height: calc(100vh - var(--header-height));
}
.main-content {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 3rem;
}

/* Sidebar overlay */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 6500;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
    width: 260px;
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .sidebar-overlay.open {
    display: block;
  }
  .main-wrap {
    margin-left: 0;
  }
  .top-tabs {
    left: 0;
  }
  .burger {
    display: flex;
  }
  .header-search {
    display: none;
  }
}

@media (max-width: 600px) {
  .site-header {
    padding: 0 0.75rem;
  }
  .header-actions .btn-login {
    display: none;
  }
  .header-actions .btn-register {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
  }
  .header-icon-btn.hide-mobile {
    display: none;
  }
  .top-tabs {
    top: calc(var(--header-height));
  }
  .top-tabs a {
    padding: 0.6rem 0.75rem;
    font-size: 0.8rem;
  }
  .main-wrap {
    padding-top: 38px;
  }
  .main-content {
    padding: 1rem 0.75rem 2rem;
  }
}