/* ============================================================
   AstroAz — Global Design System
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---------- CSS Variables ---------- */
:root {
  --color-bg: #06060c;
  --color-surface: rgba(16, 16, 32, 0.65);
  --color-surface-hover: rgba(24, 24, 48, 0.8);
  --color-border: rgba(120, 140, 255, 0.12);
  --color-border-hover: rgba(120, 180, 255, 0.3);

  --color-cyan: #00d4ff;
  --color-cyan-dim: rgba(0, 212, 255, 0.5);
  --color-violet: #7b2ff7;
  --color-accent-grad: linear-gradient(135deg, #00d4ff 0%, #7b2ff7 100%);
  --color-anchor-src: #ff6b35;
  --color-anchor-dst: #00ff88;
  --color-danger: #ff3b5c;

  --color-text: #e8ecf4;
  --color-text-dim: rgba(200, 210, 230, 0.55);
  --color-text-bright: #ffffff;

  --font-main: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 100px;

  --blur: 20px;
  --shadow-glow-cyan: 0 0 20px rgba(0, 212, 255, 0.15);
  --shadow-glow-violet: 0 0 20px rgba(123, 47, 247, 0.15);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
  /* Subtle neon halo for all floating HUD panels */
  --shadow-hud-glow: 0 0 12px rgba(0, 212, 255, 0.08), 0 0 4px rgba(123, 47, 247, 0.06);

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-med: 280ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 450ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  cursor: default;
  user-select: none;
}

/* ---------- PixiJS Canvas Container ---------- */
#pixi-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  background: var(--color-bg);
}

#pixi-container canvas {
  display: block;
}

/* ---------- Starfield ---------- */
#starfield {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  transition: opacity 1.2s ease-out;
}

body.app-ready #starfield {
  opacity: 0;
}

.star {
  position: absolute;
  width: 2px;
  height: 2px;
  background: #ffffff;
  border-radius: 50%;
  animation: twinkle var(--twinkle-dur, 3s) ease-in-out infinite;
  animation-delay: var(--twinkle-delay, 0s);
  opacity: 0;
}

.star.bright {
  width: 3px;
  height: 3px;
  box-shadow: 0 0 4px rgba(180, 210, 255, 0.6);
}

@keyframes twinkle {
  0%, 100% { opacity: 0.05; }
  50% { opacity: var(--twinkle-peak, 0.6); }
}

/* ---------- Toolbar (Top) ---------- */
#toolbar {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%) translateY(-80px);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--color-surface);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-card), var(--shadow-glow-cyan);
  z-index: 100;
  opacity: 0;
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              opacity 0.7s ease-out,
              box-shadow var(--transition-med);
}

body.app-ready #toolbar {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

#toolbar:hover {
  box-shadow: var(--shadow-card), var(--shadow-glow-violet);
  border-color: var(--color-border-hover);
}

/* Logo / Title */
.toolbar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-right: 10px;
  border-right: 1px solid var(--color-border);
  margin-right: 4px;
}

.toolbar-brand .logo-icon {
  font-size: 20px;
  filter: drop-shadow(0 0 6px rgba(0, 212, 255, 0.4));
}

.toolbar-brand span {
  font-weight: 600;
  font-size: 15px;
  background: var(--color-accent-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.5px;
}

/* Buttons */
.tb-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-dim);
  font-size: 18px;
  cursor: pointer;
  transition: all var(--transition-fast);
  outline: none;
}

.tb-btn:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
  border-color: var(--color-border);
  transform: translateY(-1px);
}

.tb-btn:active {
  transform: translateY(0);
}

.tb-btn.active {
  background: rgba(0, 212, 255, 0.12);
  color: var(--color-cyan);
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.15);
}

.tb-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 3px;
  background: var(--color-cyan);
  border-radius: var(--radius-pill);
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 4px rgba(0, 212, 255, 0.3); opacity: 0.7; }
  50% { box-shadow: 0 0 10px rgba(0, 212, 255, 0.6); opacity: 1; }
}

.tb-btn .tooltip {
  position: absolute;
  bottom: -34px;
  left: 50%;
  transform: translateX(-50%) scale(0.9);
  padding: 4px 10px;
  background: rgba(10, 10, 20, 0.92);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: all var(--transition-fast);
  z-index: 200;
}

.tb-btn:hover .tooltip {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}

/* Separator */
.tb-sep {
  width: 1px;
  height: 24px;
  background: var(--color-border);
  margin: 0 4px;
}

/* FPS Counter */
#fps-display {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-dim);
  padding: 0 8px;
  min-width: 56px;
  text-align: right;
  letter-spacing: 0.5px;
}

#fps-display.good { color: var(--color-anchor-dst); }
#fps-display.ok   { color: #ffc107; }
#fps-display.bad  { color: var(--color-danger); }

/* ---------- Side Panel (Anchors) ---------- */
#anchor-panel {
  position: fixed;
  top: 110px;
  right: 16px;
  width: 220px;
  max-height: calc(100vh - 150px);
  overflow-y: auto;
  background: var(--color-surface);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card), var(--shadow-hud-glow);
  z-index: 90;
  padding: 14px;
  display: none;
  animation: slide-in-right 0.3s var(--transition-slow);
}

#anchor-panel.visible {
  display: block;
}

@keyframes slide-in-right {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

#anchor-panel h3 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-text-dim);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.anchor-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  margin-bottom: 4px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.anchor-item:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--color-border);
}

.anchor-item .anchor-id {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-cyan);
}

.anchor-item .anchor-delete {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--color-text-dim);
  cursor: pointer;
  transition: all var(--transition-med);
}

.anchor-item .anchor-delete svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  transition: transform var(--transition-med);
}

.anchor-item .anchor-delete:hover {
  background: rgba(255, 59, 92, 0.15);
  color: #ff4d6d;
  box-shadow: 0 0 12px rgba(255, 59, 92, 0.35);
  transform: scale(1.05);
}

.anchor-item .anchor-delete:hover svg {
  transform: rotate(90deg) scale(1.1);
}

/* ---------- HUD Pill Bars (Top Right) ---------- */
.hud-pill-bar {
  position: fixed;
  right: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--color-surface);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-card), var(--shadow-hud-glow);
  z-index: 100;
  transform: translateX(350px);
  opacity: 0;
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              opacity 0.7s ease-out;
}

body.app-ready .hud-pill-bar {
  transform: translateX(0);
  opacity: 1;
}
body.app-ready #mount-bar   { transition-delay: 0.05s; }
body.app-ready #time-bar    { transition-delay: 0.1s; }
body.app-ready #location-bar { transition-delay: 0.15s; }

#mount-bar { top: 16px; }
#time-bar { top: 56px; }
#location-bar { top: 102px; }

.time-sources {
  display: flex;
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-pill);
  padding: 3px;
}

.source-btn {
  border: none;
  background: transparent;
  color: var(--color-text-dim);
  font-family: var(--font-main);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all var(--transition-fast);
}

.source-btn.disabled {
  opacity: 0.3;
  pointer-events: none;
}

.source-btn.active {
  background: var(--color-surface-hover);
  color: var(--color-text-bright);
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.15);
  border: 1px solid var(--color-border);
}

#time-input {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-bright);
  background: transparent;
  border: none;
  outline: none;
  padding: 0 4px;
}

#time-input::-webkit-calendar-picker-indicator {
  filter: invert(1) opacity(0.8);
  cursor: pointer;
}

#time-input.readonly {
  opacity: 0.6;
  pointer-events: none;
}

.loc-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.loc-group.hidden {
  display: none;
}

.loc-group label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-dim);
  display: flex;
  align-items: center;
  gap: 4px;
}

.loc-group input[type="number"], .loc-group input[type="text"] {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-bright);
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid transparent;
  outline: none;
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  transition: border var(--transition-fast);
}

.loc-group input[type="number"] { width: 70px; }
.loc-group input[type="text"] { width: 180px; font-family: var(--font-main); }
.loc-group input:not([readonly]):focus { border: 1px solid var(--color-cyan); }
.loc-group input[readonly] { 
  opacity: 1; 
  pointer-events: none; 
  border: none; 
  background: transparent; 
  padding-left: 0;
  color: var(--color-cyan);
}

.loc-icon { font-size: 14px; opacity: 0.9; }

.loc-predictions-list {
  position: absolute;
  top: 100%;
  left: 20px;
  right: 0;
  margin-top: 6px;
  background: rgba(6, 6, 12, 0.9);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5), var(--shadow-hud-glow);
  list-style: none;
  padding: 0;
  max-height: 200px;
  overflow-y: auto;
  z-index: 200;
}
.loc-predictions-list.hidden { display: none; }
.loc-predictions-list li {
  padding: 8px 12px;
  font-size: 12px;
  color: var(--color-text-bright);
  cursor: pointer;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: background var(--transition-fast);
}
.loc-predictions-list li:last-child { border-bottom: none; }
.loc-predictions-list li:hover { background: rgba(0, 212, 255, 0.2); }

/* ---------- Mount Mode Switch ---------- */
.mount-label {
  font-family: var(--font-main);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-dim);
  transition: color var(--transition-fast);
}
.mount-label.active {
  color: var(--color-cyan);
  text-shadow: 0 0 8px rgba(0, 212, 255, 0.4);
}

.switch {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 20px;
  cursor: pointer;
}
.switch input { opacity: 0; width: 0; height: 0; }
.switch-slider {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}
.switch-slider::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  background: var(--color-text-dim);
  border-radius: 50%;
  transition: all var(--transition-fast);
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
}
.switch input:checked + .switch-slider {
  background: rgba(0, 212, 255, 0.15);
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.15);
}
.switch input:checked + .switch-slider::before {
  left: 22px;
  background: var(--color-cyan);
  box-shadow: 0 0 8px rgba(0, 212, 255, 0.5);
}

/* ---------- Info Bar (Bottom) ---------- */
#info-bar {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  background: var(--color-surface);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-card), var(--shadow-hud-glow);
  opacity: 0;
  z-index: 90;
  font-size: 12px;
  color: var(--color-text-dim);
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.1s,
              opacity 0.7s ease-out 0.1s;
}

body.app-ready #info-bar {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.info-hint {
  display: flex;
  align-items: center;
  gap: 6px;
}

.info-hint.hint-sep {
  width: 1px;
  height: 16px;
  background: var(--color-border);
  padding: 0;
  margin: 0 2px;
}

.info-hint kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 7px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1;
}

/* ---------- Status Toast ---------- */
#status-toast {
  position: fixed;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: 10px 20px;
  background: var(--color-surface);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card), var(--shadow-hud-glow);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-med);
}

#status-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- Welcome Overlay ---------- */
#welcome-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: transparent;
  z-index: 300;
  transition: opacity 0.8s ease-out, visibility 0.8s;
  pointer-events: none;
}

#welcome-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.welcome-content {
  text-align: center;
  max-width: 520px;
  pointer-events: auto;
}

.welcome-content h1 {
  font-size: 84px;
  font-weight: 700;
  background: var(--color-accent-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 40px;
  letter-spacing: 2px;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.8))
          drop-shadow(0 0 40px rgba(0, 212, 255, 0.4))
          drop-shadow(0 0 80px rgba(123, 47, 247, 0.3));
  opacity: 0;
  animation: title-fade-in 1.5s cubic-bezier(0.22, 1, 0.36, 1) forwards,
             hero-glow 4s ease-in-out infinite alternate 1.5s;
}

@keyframes title-fade-in {
  0% { opacity: 0; transform: scale(0.9) translateY(-15px); }
  100% { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes hero-glow {
  0% { filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.8)) drop-shadow(0 0 30px rgba(0, 212, 255, 0.3)) drop-shadow(0 0 60px rgba(123, 47, 247, 0.2)); }
  100% { filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.8)) drop-shadow(0 0 50px rgba(0, 212, 255, 0.5)) drop-shadow(0 0 100px rgba(123, 47, 247, 0.4)); }
}

.welcome-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.welcome-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  box-shadow: var(--shadow-card), var(--shadow-hud-glow);
  transition: all var(--transition-fast);
}

.welcome-btn:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-cyan);
  box-shadow: var(--shadow-card), var(--shadow-glow-cyan);
  transform: translateY(-3px) scale(1.02);
}

.welcome-btn .btn-icon {
  font-size: 22px;
}

.welcome-drop-hint {
  color: var(--color-text-bright);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
  background: rgba(0, 0, 0, 0.6);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Delayed appearance for welcome button + hint */
.welcome-btn-delayed {
  opacity: 0;
  transform: translateY(12px);
  animation: welcome-fade-in 0.8s ease-out 1.5s forwards;
}

.welcome-drop-hint.welcome-btn-delayed {
  animation-delay: 2s;
}

@keyframes welcome-fade-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Drag & Drop visual feedback */
#welcome-overlay.drag-over .welcome-content {
  outline: 2px dashed var(--color-cyan);
  outline-offset: 20px;
  border-radius: var(--radius-lg);
}
#welcome-overlay.drag-over .welcome-drop-hint {
  color: var(--color-cyan);
  text-shadow: 0 0 8px rgba(0, 212, 255, 0.4);
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 4px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(120, 140, 255, 0.2);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(120, 140, 255, 0.4);
}

/* ---------- Canvas cursors ---------- */
body.cursor-grab { cursor: grab; }
body.cursor-grabbing { cursor: grabbing; }
body.cursor-crosshair { cursor: crosshair; }
body.cursor-rotate { cursor: alias; }

/* ---------- File input (hidden) ---------- */
.hidden-input {
  display: none;
}