/**
 * Hyperion Design System - Layout CSS
 * MudBlazor Overrides for RSI HUD Theme
 * Version: 2.0.0
 * 
 * Structure:
 * 1. HY-BACKDROP (background effects)
 * 2. HY-LAYOUT (MudLayout overrides)
 * 3. HY-APPBAR (MudAppBar overrides)
 * 4. HY-DRAWER (MudDrawer overrides)
 * 5. HY-NAV-MENU (MudNavMenu overrides)
 * 6. HY-MAIN-CONTENT
 * 7. RESPONSIVE
 * 8. ACCESSIBILITY
 */

/* ============================================
   1. HY-BACKDROP
   Fixed background with grid, scanlines, and orbital halo
   ============================================ */

.hy-backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background: var(--hy-bg-gradient);
}

/* Grid layer with radial fade mask */
.hy-backdrop__grid {
  position: absolute;
  inset: 0;
  --grid-size: 64px;
  background-image: 
    linear-gradient(to right, var(--hy-border-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--hy-border-soft) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(0, 0, 0, 0.5) 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(0, 0, 0, 0.5) 0%, transparent 100%);
  opacity: 0.6;
}

/* Scanlines effect */
.hy-backdrop__scanlines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  pointer-events: none;
  animation: hy-scanlines-scroll 8s linear infinite;
}

@keyframes hy-scanlines-scroll {
  0% { transform: translateY(0); }
  100% { transform: translateY(4px); }
}

/* Orbital halo glow */
.hy-backdrop__halo {
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 120%;
  height: 80%;
  background: radial-gradient(
    ellipse 50% 35% at 50% 30%,
    rgba(255, 122, 38, 0.08) 0%,
    rgba(255, 122, 38, 0.03) 40%,
    transparent 70%
  );
  pointer-events: none;
  filter: blur(40px);
}

/* ============================================
   2. HY-LAYOUT (MudLayout overrides)
   ============================================ */

.hy-layout {
  min-height: 100vh;
  background: transparent !important;
}

/* ============================================
   3. HY-APPBAR (MudAppBar overrides)
   RSI HUD TopBar style
   ============================================ */

.hy-appbar.mud-appbar {
  background: var(--hy-panel) !important;
  border-bottom: 1px solid var(--hy-border) !important;
  backdrop-filter: blur(12px) !important;
  -webkit-backdrop-filter: blur(12px) !important;
  box-shadow: none !important;
  height: 56px !important;
  padding: 0 16px !important;
}

/* AppBar brand section */
.hy-appbar__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 12px;
}

.hy-appbar__brand-diamond {
  width: 8px;
  height: 8px;
  background: var(--hy-accent);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  box-shadow: 0 0 8px var(--hy-accent-glow);
}

.hy-appbar__brand-text {
  font-family: var(--hy-font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--hy-ink);
  text-transform: uppercase;
}

/* Uplink status */
.hy-appbar__uplink {
  font-family: var(--hy-font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  display: flex;
  align-items: center;
  gap: 6px;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: var(--hy-radius);
  margin-right: 12px;
}

.hy-appbar__uplink--active {
  color: var(--hy-success);
  background: rgba(61, 220, 132, 0.1);
  border: 1px solid rgba(61, 220, 132, 0.25);
}

.hy-appbar__uplink--inactive {
  color: var(--hy-danger);
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.25);
  animation: hy-blink 1s step-end infinite;
}

.hy-appbar__uplink-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
  animation: hy-pulse 2s ease-in-out infinite;
}

/* UTC Clock */
.hy-appbar__clock {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--hy-font-mono);
  padding: 5px 12px;
  background: rgba(255, 122, 38, 0.08);
  border: 1px solid var(--hy-border);
  border-radius: var(--hy-radius);
  margin-right: 8px;
}

.hy-appbar__clock-label {
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--hy-ink-3);
  text-transform: uppercase;
}

.hy-appbar__clock-time {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--hy-accent);
  text-shadow: 0 0 10px var(--hy-accent-glow);
}

/* AppBar buttons */
.hy-appbar .mud-icon-button {
  color: var(--hy-ink-2) !important;
  transition: color 0.15s ease, background 0.15s ease !important;
}

.hy-appbar .mud-icon-button:hover {
  color: var(--hy-ink) !important;
  background: rgba(255, 255, 255, 0.05) !important;
}

/* ============================================
   4. HY-DRAWER (MudDrawer overrides)
   RSI HUD Sidebar style
   ============================================ */

.hy-drawer.mud-drawer {
  background: linear-gradient(180deg, rgba(10, 14, 22, 0.95), rgba(6, 9, 15, 0.98)) !important;
  border-right: 1px solid var(--hy-border-soft) !important;
  backdrop-filter: blur(12px) !important;
  -webkit-backdrop-filter: blur(12px) !important;
  box-shadow: none !important;
  width: 240px !important;
}

.hy-drawer.mud-drawer--closed {
  width: 0 !important;
}

/* Drawer scrollbar */
.hy-drawer .mud-drawer-content {
  scrollbar-width: thin;
  scrollbar-color: var(--hy-border-strong) transparent;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.hy-drawer .mud-drawer-content::-webkit-scrollbar {
  width: 4px;
}

.hy-drawer .mud-drawer-content::-webkit-scrollbar-track {
  background: transparent;
}

.hy-drawer .mud-drawer-content::-webkit-scrollbar-thumb {
  background: var(--hy-border-strong);
  border-radius: 2px;
}

/* Drawer Header */
.hy-drawer__header {
  height: 56px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  position: relative;
  border-bottom: 1px solid var(--hy-border-soft);
  flex-shrink: 0;
}

.hy-drawer__accent-bar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--hy-accent);
  box-shadow: 0 0 12px var(--hy-accent-glow);
}

.hy-drawer__brand {
  display: flex;
  flex-direction: column;
  margin-left: 8px;
  line-height: 1.1;
}

.hy-drawer__brand-title {
  font-family: var(--hy-font-display);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--hy-ink);
  font-weight: 600;
  text-transform: uppercase;
}

.hy-drawer__brand-subtitle {
  font-family: var(--hy-font-mono);
  font-size: 9px;
  letter-spacing: 0.25em;
  color: var(--hy-accent);
  margin-top: 2px;
  text-transform: uppercase;
}

/* Status Block */
.hy-drawer__status {
  padding: 12px 16px;
  font-family: var(--hy-font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  color: var(--hy-ink-3);
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-bottom: 1px solid var(--hy-border-soft);
  flex-shrink: 0;
}

.hy-drawer__status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hy-drawer__status-label {
  text-transform: uppercase;
}

.hy-drawer__status-value {
  color: var(--hy-ink-2);
  display: flex;
  align-items: center;
  gap: 5px;
}

.hy-drawer__status-value--online {
  color: var(--hy-success);
}

.hy-drawer__status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--hy-success);
  flex-shrink: 0;
  animation: hy-pulse 2s ease-in-out infinite;
}

/* Drawer Footer */
.hy-drawer__footer {
  margin-top: auto;
  padding: 12px 16px;
  border-top: 1px solid var(--hy-border-soft);
  display: flex;
  justify-content: center;
}

.hy-drawer__version {
  font-family: var(--hy-font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--hy-ink-3);
  text-transform: uppercase;
  padding: 3px 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--hy-border-soft);
  border-radius: var(--hy-radius);
}

/* ============================================
   5. HY-NAV-MENU (MudNavMenu overrides)
   RSI HUD Navigation style
   ============================================ */

.hy-nav-menu.mud-navmenu {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 8px 8px;
}

/* Loading state */
.hy-nav-loading {
  padding: 16px;
}

/* Navigation items */
.hy-nav-menu .mud-nav-link,
.hy-nav-item.mud-nav-link {
  position: relative;
  padding: 10px 12px !important;
  margin: 1px 0 !important;
  border-radius: 0 !important;
  border-left: 2px solid transparent !important;
  color: var(--hy-ink-2) !important;
  font-family: var(--hy-font-body) !important;
  font-size: 12px !important;
  font-weight: 400 !important;
  letter-spacing: 0.02em !important;
  text-transform: none !important;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease !important;
}

.hy-nav-menu .mud-nav-link:hover,
.hy-nav-item.mud-nav-link:hover {
  background: rgba(255, 255, 255, 0.04) !important;
  color: var(--hy-ink) !important;
}

/* Active state */
.hy-nav-menu .mud-nav-link.active,
.hy-nav-item.mud-nav-link.active,
.hy-nav-menu .mud-nav-link[aria-current="page"],
.hy-nav-item.mud-nav-link[aria-current="page"] {
  background: rgba(255, 122, 38, 0.1) !important;
  border-left-color: var(--hy-accent) !important;
  color: var(--hy-ink) !important;
  font-weight: 500 !important;
}

.hy-nav-menu .mud-nav-link.active:hover,
.hy-nav-item.mud-nav-link.active:hover {
  background: rgba(255, 122, 38, 0.15) !important;
}

/* Nav icons */
.hy-nav-menu .mud-nav-link .mud-nav-link-icon,
.hy-nav-item.mud-nav-link .mud-nav-link-icon {
  color: inherit !important;
  margin-right: 12px !important;
  font-size: 20px !important;
  transition: color 0.15s ease, filter 0.15s ease !important;
}

.hy-nav-menu .mud-nav-link.active .mud-nav-link-icon,
.hy-nav-item.mud-nav-link.active .mud-nav-link-icon,
.hy-nav-menu .mud-nav-link[aria-current="page"] .mud-nav-link-icon,
.hy-nav-item.mud-nav-link[aria-current="page"] .mud-nav-link-icon {
  color: var(--hy-accent) !important;
  filter: drop-shadow(0 0 6px var(--hy-accent-glow)) !important;
}

/* Nav text */
.hy-nav-menu .mud-nav-link .mud-nav-link-text,
.hy-nav-item.mud-nav-link .mud-nav-link-text {
  font-family: var(--hy-font-body) !important;
}

/* ============================================
   6. HY-MAIN-CONTENT
   ============================================ */

.hy-main-content.mud-main-content {
  background: transparent !important;
  min-height: 100vh;
  padding-top: 56px !important; /* Height of appbar */
}

.hy-content-wrapper {
  max-width: 100%;
  overflow-x: hidden;
}

/* ============================================
   7. RESPONSIVE
   ============================================ */

/* Tablet & smaller */
@media (max-width: 1024px) {
  .hy-drawer.mud-drawer {
    width: 200px !important;
  }

  .hy-content-wrapper {
    padding: 20px;
  }

  .hy-appbar__uplink {
    display: none;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .hy-drawer.mud-drawer {
    width: 240px !important;
    position: fixed !important;
    z-index: 1200 !important;
  }

  .hy-drawer.mud-drawer--closed {
    transform: translateX(-100%) !important;
  }

  .hy-content-wrapper {
    padding: 16px;
  }

  .hy-appbar.mud-appbar {
    height: 52px !important;
    padding: 0 12px !important;
  }

  .hy-appbar__brand-text {
    font-size: 11px;
    letter-spacing: 0.15em;
  }

  .hy-appbar__clock {
    padding: 4px 8px;
  }

  .hy-appbar__clock-label {
    display: none;
  }

  .hy-appbar__clock-time {
    font-size: 10px;
  }

  .hy-main-content.mud-main-content {
    padding-top: 52px !important;
  }
}

/* ============================================
   8. ACCESSIBILITY
   ============================================ */

/* Skip link for keyboard navigation */
.hy-skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--hy-accent);
  color: var(--hy-bg);
  padding: 8px 16px;
  z-index: 2000;
  font-family: var(--hy-font-mono);
  font-size: 12px;
  text-decoration: none;
  transition: top 0.2s ease;
}

.hy-skip-link:focus {
  top: 0;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .hy-drawer.mud-drawer {
    border-right-color: var(--hy-ink) !important;
  }

  .hy-nav-menu .mud-nav-link.active,
  .hy-nav-item.mud-nav-link.active {
    border-left-width: 3px !important;
  }

  .hy-appbar.mud-appbar {
    border-bottom-color: var(--hy-ink) !important;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .hy-backdrop__scanlines,
  .hy-appbar__uplink-dot,
  .hy-drawer__status-dot {
    animation: none !important;
  }

  .hy-nav-menu .mud-nav-link,
  .hy-nav-item.mud-nav-link,
  .hy-appbar .mud-icon-button {
    transition: none !important;
  }
}

/* ============================================
   9. PRINT STYLES
   ============================================ */

@media print {
  .hy-backdrop,
  .hy-appbar,
  .hy-drawer {
    display: none !important;
  }

  .hy-main-content.mud-main-content {
    padding-top: 0 !important;
    margin-left: 0 !important;
  }

  .hy-content-wrapper {
    padding: 0 !important;
  }
}

/* ============================================
   10. ANIMATIONS (shared with other components)
   ============================================ */

@keyframes hy-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes hy-blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0.3; }
}