/* AIRSPACE STANDOFF: Base Styles - Solid Pitch Black with Subtle Aerospace Glass */

:root {
  --bg-dark: var(--color-pitch-black);
  --bg-panel: rgba(4, 9, 22, 0.94);
  --bg-panel-alt: rgba(3, 7, 18, 0.92);
  --bg-card: var(--glass-3d-card-bg);
  --border-color: var(--glass-border);
  --border-highlight: var(--glass-border-hover);
  --border-focus: var(--color-frost-glow);

  --text-main: var(--color-pure-white);
  --text-muted: var(--color-moon-mist);
  --text-dim: var(--color-fog-veil);

  --safe-top: 0px;
  --safe-bottom: 0px;
  --safe-left: 0px;
  --safe-right: 0px;
  --safe-zone-inset: 0px;
}

html.safe-zone-on,
body.safe-zone-on {
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: max(36px, env(safe-area-inset-left, 36px));
  --safe-right: max(36px, env(safe-area-inset-right, 36px));
  --safe-zone-inset: max(36px, env(safe-area-inset-left, 36px), env(safe-area-inset-right, 36px));
}

.hidden {
  display: none !important;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  scrollbar-width: thin;
  scrollbar-color: rgba(56, 189, 248, 0.28) var(--color-pitch-black);
  -webkit-tap-highlight-color: transparent;
}

html, body {
  background-color: #000000 !important;
  color: var(--text-main);
  font-family: var(--font-untitled-sans);
  overflow: hidden;
  height: 100%;
  width: 100%;
  position: fixed;
  -webkit-font-smoothing: antialiased;
}

/* Pseudo-fullscreen fallback */
html.pseudo-fullscreen,
body.pseudo-fullscreen {
  position: fixed !important;
  inset: 0 !important;
  top: 0 !important;
  left: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  height: 100dvh !important;
  max-width: 100vw !important;
  max-height: 100dvh !important;
  z-index: 999999 !important;
  margin: 0 !important;
  padding: 0 !important;
  overflow: hidden !important;
}

html.pseudo-fullscreen #hud-container,
body.pseudo-fullscreen #hud-container,
html.pseudo-fullscreen #procurement-modal,
body.pseudo-fullscreen #procurement-modal {
  height: 100dvh !important;
  width: 100vw !important;
}

:fullscreen,
:-webkit-full-screen,
:-moz-full-screen {
  background-color: #000000 !important;
  width: 100vw !important;
  height: 100vh !important;
  height: 100dvh !important;
  overflow: hidden !important;
}

:fullscreen #hud-container,
:-webkit-full-screen #hud-container,
:fullscreen #procurement-modal,
:-webkit-full-screen #procurement-modal {
  width: 100vw !important;
  height: 100dvh !important;
}

#radar-canvas {
  background-color: #000000 !important;
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: #000000;
  border-left: 1px solid var(--glass-border);
}

::-webkit-scrollbar-thumb {
  background: rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-btn);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--theme-accent);
  box-shadow: 0 0 8px var(--theme-accent-glow);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.90) !important;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease-out;
  transform: translateZ(0);
  padding: 8px;
  box-sizing: border-box;
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.hud-btn {
  background: var(--glass-3d-btn-bg);
  border: 1px solid var(--glass-border);
  border-top: 1px solid var(--liquid-glass-border-top);
  color: #ffffff;
  font-family: var(--font-untitled-sans);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 6px 14px;
  cursor: pointer;
  border-radius: var(--radius-btn);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  letter-spacing: 0.3px;
  box-shadow: var(--glass-3d-btn-shadow);
  transition: all 0.14s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.hud-btn .btn-vector-ico {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
  pointer-events: none;
  transition: transform 0.15s ease, filter 0.15s ease;
  object-fit: contain;
}

.hud-btn:hover:not(:disabled) .btn-vector-ico {
  transform: scale(1.10);
  filter: drop-shadow(0 0 6px var(--theme-accent));
}

.modal-title-ico {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
  margin-right: 8px;
  filter: drop-shadow(0 0 8px var(--theme-accent-glow));
  object-fit: contain;
}

.hud-btn:hover:not(:disabled) {
  background: var(--glass-3d-btn-bg-hover);
  border-color: var(--theme-accent);
  border-top-color: #ffffff;
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.40), 0 4px 14px rgba(0, 0, 0, 0.7);
}

.hud-btn:active:not(:disabled) {
  transform: translateY(1px);
  box-shadow: var(--glass-3d-btn-active-shadow);
}

.hud-btn:disabled {
  opacity: 0.32;
  cursor: not-allowed;
  filter: grayscale(0.8);
  box-shadow: none;
}

.hud-btn.small {
  padding: 3px 10px;
  font-size: 0.65rem;
  height: 28px;
  min-height: 28px;
  gap: 5px;
  border-radius: var(--radius-btn);
  flex-shrink: 0;
}

.hud-btn.alert {
  background: linear-gradient(135deg, rgba(244, 63, 94, 0.28) 0%, rgba(136, 19, 55, 0.45) 100%), #14040a;
  border-color: rgba(244, 63, 94, 0.45);
  border-top-color: rgba(255, 140, 165, 0.55);
  color: #fecdd3;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), 0 0 10px rgba(244, 63, 94, 0.30);
}

.hud-btn.alert:hover:not(:disabled) {
  background: linear-gradient(135deg, rgba(244, 63, 94, 0.42) 0%, rgba(136, 19, 55, 0.60) 100%), #1e060e;
  border-color: #f43f5e;
  border-top-color: #ffffff;
  color: #ffffff;
  box-shadow: inset 0 1px 0 #ffffff, 0 0 16px rgba(244, 63, 94, 0.55);
}

.hud-btn.highlight {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.35) 0%, rgba(2, 132, 199, 0.25) 50%, rgba(3, 105, 161, 0.45) 100%), #020c1e;
  border-color: var(--theme-primary);
  border-top-color: var(--color-ice-highlight);
  color: #ffffff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.40), 0 0 14px var(--theme-primary-glow);
}

.hud-btn.highlight:hover:not(:disabled) {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.55) 0%, rgba(2, 132, 199, 0.38) 50%, rgba(3, 105, 161, 0.60) 100%), #03122c;
  border-color: #ffffff;
  color: #ffffff;
  box-shadow: inset 0 1px 0 #ffffff, 0 0 20px var(--theme-primary-glow);
}