/* BLUE RIDGE RUSH — page shell styles.
 * The game itself is 100% canvas; this file only styles the stage, the pre-JS boot loader, the fatal-error panel and helpers. */

:root {
  --void: #0d0221;
  --ink: #160a33;
  --violet: #3d1a6e;
  --magenta: #ff4fa3;
  --orange: #ff9a3c;
  --gold: #ffd23f;
  --cyan: #38d6ff;
  --paper: #f4f0ff;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  --disp: "Arial Black", "Helvetica Neue", Impact, system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--void);
  color: var(--paper);
  -webkit-text-size-adjust: 100%;
  overscroll-behavior: none;
}

body {
  font-family: var(--mono);
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

#stage {
  position: fixed;
  inset: 0;
  background: var(--void);
}

#game {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;      /* the canvas owns every gesture (swipes, drags, multi-touch driving) */
  outline: none;           /* focus is drawn inside the canvas by the UI */
  cursor: default;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- boot loader (visible from first paint until the first canvas frame) ---------- */
#boot {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 0 16px;
  text-align: center;
  background:
    radial-gradient(120% 70% at 50% 108%, #ff7a3c 0%, #d2378f 22%, #5b2a86 46%, transparent 70%),
    linear-gradient(#0d0221, #2a1252 70%, #4b2079);
  transition: opacity .45s ease, visibility .45s;
}
#boot.done { opacity: 0; visibility: hidden; pointer-events: none; }
#boot .logo {
  font: italic 900 clamp(28px, 9vw, 72px)/0.95 var(--disp);
  letter-spacing: .02em;
  text-transform: uppercase;
  background: linear-gradient(#fff 0 42%, #ffd6f0 42% 50%, #ff9a3c 50%, #ffd23f);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  filter: drop-shadow(0 0 14px rgba(255, 79, 163, .65)) drop-shadow(3px 4px 0 #3d1a6e);
}
#boot .logo span { display: block; font-size: 1.35em; }
#boot .bar {
  width: min(280px, 70vw);
  height: 8px;
  border: 2px solid #ffd23f;
  background: #160a33;
  overflow: hidden;
}
#boot .bar i {
  display: block; height: 100%; width: 40%;
  background: repeating-linear-gradient(90deg, #38d6ff 0 8px, #1c8fbf 8px 10px);
  animation: bootbar 1.1s steps(12) infinite;
}
#boot .msg { font-size: 12px; letter-spacing: .2em; color: #d9c8ff; text-transform: uppercase; }
@keyframes bootbar { from { transform: translateX(-100%); } to { transform: translateX(260%); } }

/* ---------- fatal / friendly error panel ---------- */
#fatal {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(13, 2, 33, .88);
}
#fatal.show { display: flex; }
#fatal .card {
  max-width: 460px;
  padding: 22px 22px 18px;
  border: 3px solid var(--gold);
  box-shadow: 0 0 0 3px var(--void), 0 0 0 5px var(--magenta), 0 18px 60px rgba(0, 0, 0, .6);
  background: linear-gradient(#1c0d3f, #10062a);
  text-align: center;
}
#fatal h1 { margin: 0 0 8px; font: italic 900 22px/1.1 var(--disp); color: var(--gold); text-transform: uppercase; letter-spacing: .04em; }
#fatal p { margin: 0 0 10px; font-size: 13px; line-height: 1.5; color: #e7dcff; }
#fatal code { display: block; margin: 10px 0 14px; padding: 8px; background: #000; color: #ff9fb8; font-size: 11px; text-align: left; overflow: auto; max-height: 90px; white-space: pre-wrap; word-break: break-word; }
#fatal button {
  font: 700 13px var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #160a33;
  background: var(--gold);
  border: 0;
  padding: 11px 18px;
  margin: 0 4px;
  cursor: pointer;
  box-shadow: 0 4px 0 #b07d00;
}
#fatal button.alt { background: #2b1a55; color: var(--paper); box-shadow: 0 4px 0 #120826; }
#fatal button:hover, #fatal button:focus-visible { filter: brightness(1.15); outline: 2px solid var(--cyan); outline-offset: 2px; }
#fatal button:active { transform: translateY(3px); box-shadow: 0 1px 0 #b07d00; }

/* ---------- noscript ---------- */
.noscript {
  position: fixed; inset: 0; z-index: 40;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  padding: 24px; text-align: center;
  background: var(--void); color: var(--paper);
  font: 15px/1.5 var(--mono);
}
.noscript strong { font: italic 900 28px var(--disp); color: var(--gold); text-transform: uppercase; }

@media (prefers-reduced-motion: reduce) {
  #boot .bar i { animation: none; width: 100%; }
  #boot { transition: none; }
}