/* Premium Shell Layout */
.AppShell {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  grid-template-rows: auto 1fr;
  height: 100vh;
  background: var(--bg, #0a0b0e);
  position: relative;
  overflow: hidden;
  transition: grid-template-columns 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* NavRail below ticker */
.NavRail { grid-row: 2 / -1; }

/* Collapsed Nav Rail — icon-only mode */
.AppShell.nav-collapsed {
  grid-template-columns: 76px minmax(0, 1fr);
}

/* Removed decorative nav rail border - caused visual glitch on initial load */

.Content {
  grid-column: 2;
  grid-row: 2;
  min-width: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 28px 32px;
  position: relative;
  background: #0d1117;
  transform: translateZ(0);
  will-change: scroll-position;
  -webkit-overflow-scrolling: touch;
  outline: none !important;
}

.Content,
.Content:focus,
.Content:focus-visible {
  outline: none !important;
  outline-width: 0 !important;
  outline-offset: 0 !important;
  border: none !important;
  box-shadow: none !important;
}

.Content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    var(--border-light) 20%, 
    var(--brand) 50%, 
    var(--border-light) 80%, 
    transparent 100%);
  opacity: 0.3;
}

/* Premium content styling */
.page-header {
  padding: 0 0 var(--space-6) 0 !important;
  margin-bottom: var(--space-8) !important;
  display: flex !important;
  flex-direction: column !important;
  gap: var(--space-3) !important;
  position: relative !important;
  text-align: left !important;
  background: transparent !important;
  border: none !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
  border-radius: 0 !important;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, rgba(94, 173, 184, 0.4) 0%, rgba(94, 173, 184, 0.1) 60%, transparent 100%);
  border-radius: 2px;
}

.page-header .page-title,
h1.page-title {
  font-family: var(--font-display) !important;
  font-size: 2rem !important;
  font-weight: 700 !important;
  color: #FFFFFF !important;
  margin: 0 !important;
  padding: 0 !important;
  letter-spacing: -0.025em !important;
  line-height: 1.2 !important;
  opacity: 1 !important;
  visibility: visible !important;
  background: none !important;
  background-clip: border-box !important;
  -webkit-background-clip: border-box !important;
  -webkit-text-fill-color: #FFFFFF !important;
  text-fill-color: #FFFFFF !important;
  text-shadow:
    0 2px 4px rgba(0, 0, 0, 0.2),
    0 2px 4px rgba(0, 0, 0, 0.3) !important;
  text-align: left !important;
  display: block !important;
}

.page-subtitle {
  font-size: 0.875rem !important;
  color: rgba(255, 255, 255, 0.65) !important;
  margin: 0 !important;
  padding: 0 !important;
  line-height: 1.6 !important;
  font-weight: 400 !important;
  text-align: left !important;
  max-width: 600px !important;
}

/* Section Headers - Unified style for content sections */
.section-header {
  padding-bottom: var(--space-3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  margin-bottom: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.section-title, .section-header h2, .section-header h3, .section-header h4 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.section-subtitle, .section-header p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin: 0;
  line-height: var(--leading-relaxed);
}

/* Mobile hamburger menu button */
.mobile-menu-toggle {
  display: none;
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10001;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px;
  cursor: pointer;
  transition: all var(--duration-200) var(--ease-out);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.mobile-menu-toggle:hover {
  background: var(--bg-hover);
  border-color: var(--brand);
}

.mobile-menu-toggle:active {
  transform: scale(0.95);
}

.hamburger-icon {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 20px;
  height: 16px;
}

.hamburger-icon span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--duration-200) var(--ease-out);
}

/* Responsive enhancements */
@media (max-width: 1024px) {
  .mobile-menu-toggle {
    display: block !important;
  }

  .AppShell,
  .AppShell.nav-collapsed {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto 1fr;
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
  }

  .market-pulse-bar {
    grid-column: 1 !important;
    grid-row: 1 !important;
    min-width: 0;
    max-width: 100vw;
  }

  .Content {
    grid-column: 1 !important;
    grid-row: 2 !important;
    min-width: 0;
  }

  .AppShell::before {
    display: none;
  }

  .NavRail {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 280px;
    z-index: 10000;
    transform: translateX(-100%);
    transition: transform var(--duration-300) var(--ease-out);
    box-shadow: var(--shadow-2xl);
    backdrop-filter: blur(20px);
    grid-row: unset;
  }

  .NavRail[data-open="1"] {
    transform: translateX(0);
  }

  .Content {
    padding: var(--space-4);
    padding-top: calc(var(--space-4) + 60px); /* Add space for hamburger button */
    width: 100%;
    max-width: 100vw;
    box-sizing: border-box;
  }

  .page-title {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-4);
  }

  .page-subtitle {
    margin-bottom: var(--space-6);
  }
}

@media (max-width: 768px) {
  .AppShell,
  .AppShell.nav-collapsed {
    grid-template-columns: minmax(0, 1fr);
    width: 100vw;
    max-width: 100vw;
    overflow-x: hidden;
  }

  .Content {
    padding: var(--space-3);
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
    box-sizing: border-box;
  }

  .page-title {
    font-size: var(--text-xl);
  }

  .page-subtitle {
    font-size: 0.8125rem !important;
    max-width: 100% !important;
    line-height: 1.5 !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
  }

  .page-header {
    margin-bottom: var(--space-4);
  }
}

/* Mobile overlay backdrop */
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  z-index: 9998;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-300) var(--ease-out);
}

.mobile-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* Smooth transitions for interactive elements only */
.AppShell button,
.AppShell a,
.AppShell input,
.AppShell select,
.AppShell .card {
  transition-property: transform, opacity, background-color, border-color, box-shadow;
  transition-duration: var(--duration-200);
  transition-timing-function: var(--ease-out);
}

/* Loading state */
.AppShell.loading .Content {
  opacity: 0.6;
  pointer-events: none;
}

.AppShell.loading .Content::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 32px;
  height: 32px;
  margin: -16px 0 0 -16px;
  border: 3px solid var(--border);
  border-top-color: var(--brand);
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ==========================================
   MARKET PULSE BAR — Global scrolling ticker
   ========================================== */

.market-pulse-bar {
  grid-column: 1 / -1;
  grid-row: 1;
  background: rgba(0, 0, 0, 0.35);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
  z-index: 50;
  height: 36px;
  display: flex;
  align-items: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0.6;
}

.pulse-tape {
  display: inline-flex;
  white-space: nowrap;
  width: 100%;
  overflow: hidden;
}

.pulse-content {
  display: inline-flex;
  animation: pulse-scroll 45s linear infinite;
}

@keyframes pulse-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.market-pulse-bar:hover {
  opacity: 0.85;
}

.pulse-tape:hover .pulse-content {
  animation-play-state: paused;
}

.pulse-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 16px;
  font-size: 12px;
  font-family: var(--font-mono, monospace);
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  height: 36px;
  line-height: 36px;
  white-space: nowrap;
}

.pulse-sym {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.pulse-price {
  color: var(--text-secondary);
}

.pulse-up {
  color: #22c55e;
  font-weight: 600;
}

.pulse-down {
  color: #ef4444;
  font-weight: 600;
}

.pulse-neutral {
  color: #fbbf24;
  font-weight: 600;
}

.pulse-muted {
  color: var(--text-tertiary);
  font-weight: 400;
}

.pulse-val {
  color: var(--text-secondary);
  font-size: 11px;
}

.pulse-tag {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 1px 5px;
  border-radius: 3px;
  background: rgba(var(--brand-rgb, 6, 182, 212), 0.15);
  color: var(--brand);
}

.pulse-whale .pulse-tag {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-tertiary);
}

.pulse-liq .pulse-tag {
  background: rgba(239, 68, 68, 0.12);
  color: #f87171;
}

@media (max-width: 1024px) {
  .market-pulse-bar {
    height: 32px;
  }
  .pulse-tape {
    display: flex;
    max-width: 100%;
  }
  .pulse-content {
    min-width: 0;
  }
  .pulse-item {
    height: 32px;
    line-height: 32px;
    font-size: 11px;
    padding: 0 12px;
  }
}