/* ═══════════════════════════════════════════════════════
 *  SUNSET RACING — DRONE — base styles
 *  HUD (attitude indicator, altitude, throttle, etc.) is
 *  drawn into a canvas by js/hud.js. Runtime UI (pause
 *  menu, touch sticks, toasts) is styled via js-injected
 *  <style> tags inside js/game.js. This file holds the
 *  static surfaces only.
 * ═══════════════════════════════════════════════════════ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #000;
  -webkit-font-smoothing: antialiased;
  touch-action: none;
  overscroll-behavior: none;
}

/* Cinematic vignette sitting above the 3D canvas. */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  background: radial-gradient(
    ellipse at center,
    transparent 52%,
    rgba(0, 0, 0, 0.42) 100%
  );
}

#game {
  display: block;
  width: 100%;
  height: 100%;
}

/* HUD canvases are positioned by js/hud.js via cssText;
   we only hint the browser about scaling. */
#hud-canvas,
#hud-overlay,
#attitude-canvas {
  image-rendering: auto;
}

/* Keyboard hint strip at the bottom of the screen. */
#controls {
  position: fixed;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 11px;
  color: #fff;
  opacity: 0.45;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.9);
  pointer-events: none;
  letter-spacing: 3px;
  white-space: nowrap;
  text-transform: uppercase;
  z-index: 140;
  transition: opacity 0.3s ease;
}
#controls:hover { opacity: 0.75; }

@media (hover: none) and (pointer: coarse) {
  #controls { display: none; }
}

@media (max-width: 820px) {
  #controls {
    font-size: 9px;
    letter-spacing: 2px;
    white-space: normal;
    max-width: 92vw;
    text-align: center;
  }
}

/* Scale HUD elements on narrow viewports so they don't
   fight with the on-screen virtual sticks. */
@media (max-width: 720px) {
  #hud-canvas {
    transform: scale(0.72);
    transform-origin: bottom left;
  }
  #hud-overlay {
    transform: scale(0.82);
    transform-origin: top left;
  }
  #attitude-canvas {
    transform: scale(0.78);
    transform-origin: top center;
  }
}

/* ═══════════════════════════════════════════════════════
 *  Loading veil — shown while game.js initializes
 *  (three.js module + world build). Faded out on the
 *  first animation frame by js/game.js.
 * ═══════════════════════════════════════════════════════ */
#loading-veil {
  position: fixed;
  inset: 0;
  z-index: 900;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  pointer-events: auto;
  background:
    radial-gradient(ellipse at 50% 120%, #ff6a3d 0%, #a11f4c 28%, #3a1048 58%, #050512 100%);
  font-family: 'Orbitron', sans-serif;
  color: #fff;
  opacity: 1;
  transition: opacity 0.7s ease-out;
}

#loading-veil.hidden {
  opacity: 0;
  pointer-events: none;
}

#loading-veil .lv-title {
  font-weight: 900;
  font-size: clamp(32px, 9vw, 68px);
  letter-spacing: clamp(4px, 1vw, 10px);
  text-shadow:
    0 0 40px rgba(255, 160, 80, 0.8),
    0 4px 24px rgba(0, 0, 0, 0.9);
  text-align: center;
}

#loading-veil .lv-sub {
  font-weight: 700;
  font-size: clamp(11px, 2vw, 14px);
  letter-spacing: 4px;
  color: rgba(255, 255, 255, 0.82);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
}

#loading-veil .lv-dots {
  display: flex;
  gap: 10px;
}
#loading-veil .lv-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.8);
  animation: lvDot 1.1s ease-in-out infinite;
}
#loading-veil .lv-dots span:nth-child(2) { animation-delay: 0.15s; }
#loading-veil .lv-dots span:nth-child(3) { animation-delay: 0.3s; }

@keyframes lvDot {
  0%, 100% { transform: translateY(0); opacity: 0.35; }
  50%      { transform: translateY(-8px); opacity: 1; }
}

/* Gold-toast keyframe for the "NEW BEST LAP!" celebration. */
@keyframes toastGoldIn {
  0%   { transform: translate(-50%, -50%) scale(0.6); opacity: 0; }
  22%  { transform: translate(-50%, -50%) scale(1.18); opacity: 1; }
  40%  { transform: translate(-50%, -50%) scale(1.00); opacity: 1; }
  85%  { opacity: 1; }
  100% { opacity: 0; }
}

/* Countdown pop-in — applied via inline animation from
   js/game.js each time the countdown digit changes. */
@keyframes countdownPop {
  0%   { transform: translate(-50%, -50%) scale(0.35); opacity: 0; filter: blur(6px); }
  35%  { transform: translate(-50%, -50%) scale(1.18); opacity: 1; filter: blur(0); }
  55%  { transform: translate(-50%, -50%) scale(0.96); opacity: 1; }
  100% { transform: translate(-50%, -50%) scale(1.00); opacity: 1; }
}

/* Gate pass flash — expands from the center, fades out.
   Triggered by js/gate-track.js on clean pass. */
@keyframes gatePassFlash {
  0%   { opacity: 0.75; transform: translate(-50%, -50%) scale(0.6); }
  100% { opacity: 0;    transform: translate(-50%, -50%) scale(1.8); }
}

/* Reduced-motion accessibility: keep state transitions
   readable but strip bouncy keyframes. */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.08s !important;
  }
  #loading-veil .lv-dots span {
    animation: none !important;
    opacity: 0.7 !important;
    transform: none !important;
  }
}