:root {
  --cg-font: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --cg-maxw: 60ch;
  --cg-accent: #9ad17b; /* terminal green by default */
  --cg-fg: #222;
  --cg-bg: #fff;
  --cg-border: #ddd;
  --cg-focus: #005fcc;
}
#campusgame-root { font-family: var(--cg-font); max-width: var(--cg-maxw); color: var(--cg-fg); }
.cg-card { background: var(--cg-bg); border:1px solid var(--cg-border); border-radius:10px; padding:16px; margin: 12px 0; position:relative; }
.cg-title { font-weight:700; font-size:1.1rem; margin-bottom:8px; }
.cg-text { line-height:1.65; white-space:pre-wrap; }
.cg-choices { display:flex; flex-direction:column; gap:8px; margin-top:12px; }
.cg-btn { display:block; text-align:left; padding:10px 12px; border-radius:8px; border:1px solid #ccc; background:#f9f9f9; cursor:pointer; }
.cg-btn:focus { outline: 3px solid var(--cg-focus); outline-offset:3px; box-shadow: 0 0 0 2px #fff; }
.cg-stats { display:flex; gap:12px; font-size:12px; color:#333; margin-top:8px;}
.cg-muted { color:#666; font-size:12px; }

/* ===== High Contrast Mode ===== */
#campusgame-root.high-contrast {
  --cg-fg: #000;
  --cg-bg: #fff;
  --cg-border: #000;
  --cg-focus: #ff2a2a;
}
#campusgame-root.high-contrast .cg-btn {
  background:#fff;
  border-color:#000;
}
#campusgame-root.high-contrast .cg-title { text-decoration: underline; }
#campusgame-root.high-contrast .cg-muted { color:#000; opacity:.8; }

/* ===== Large Text Mode ===== */
#campusgame-root.large-text { font-size: 120%; }
#campusgame-root.large-text .cg-text { line-height: 1.8; }
#campusgame-root.large-text .cg-btn { padding: 14px 16px; font-size: 1rem; }
#campusgame-root.large-text .cg-title { font-size: 1.25rem; }

/* ===== Zork-ish Terminal Theme ===== */
#campusgame-root.zork {
  --cg-font: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --cg-maxw: 70ch;
  --cg-fg: #C7C7C7;
  --cg-bg: #000;
  --cg-border: #2a2a2a;
  --cg-focus: #9ad17b;
}
#campusgame-root.zork .cg-card {
  background: var(--cg-bg);
  color: var(--cg-fg);
  border: 1px solid var(--cg-border);
  border-radius: 0;
  box-shadow: none;
  padding: 18px;
}
#campusgame-root.zork .cg-title { font-weight: 600; color: var(--cg-accent); margin: 0 0 8px; }
#campusgame-root.zork .cg-text { line-height: 1.55; white-space: pre-wrap; position: relative; }
#campusgame-root.zork .cg-text:before { content: "> "; color: var(--cg-accent); }
#campusgame-root.zork .cg-choices { gap: 4px; }
#campusgame-root.zork .cg-btn { background: transparent; border: none; color: var(--cg-fg); padding: 0; font: inherit; cursor: pointer; }
#campusgame-root.zork .cg-btn::before { content: "> "; color: var(--cg-accent); }
#campusgame-root.zork .cg-btn:hover, #campusgame-root.zork .cg-btn:focus { text-decoration: underline; outline: none; }
#campusgame-root.zork .cg-stats { color: color-mix(in srgb, var(--cg-accent) 60%, white); }

/* Amber accent option */
#campusgame-root.amber { --cg-accent: #ffcc66; }

/* ===== Classic CRT overlay (curvature/vignette/glow) ===== */
#campusgame-root.crt .cg-card {
  border-radius: 12px;
  background: radial-gradient(120% 100% at 50% -10%, rgba(255,255,255,0.04), transparent 60%), var(--cg-bg);
  box-shadow:
    inset 0 0 120px rgba(0,0,0,0.35),
    0 0 0 1px var(--cg-border);
}
#campusgame-root.crt .cg-card::before {
  content:"";
  position:absolute; inset:0;
  border-radius: 12px;
  background:
    radial-gradient(80% 60% at 50% 0%, rgba(255,255,255,0.06), transparent 50%),
    radial-gradient(120% 100% at 50% 120%, rgba(0,0,0,0.25), transparent 60%);
  pointer-events:none;
  mix-blend-mode: screen;
}
#campusgame-root.crt .cg-card::after {
  content:"";
  position:absolute; inset:0;
  border-radius: 12px;
  background:
    radial-gradient(100% 130% at 50% 10%, rgba(0,0,0,0.25), transparent 55%),
    repeating-linear-gradient(to bottom, rgba(0,0,0,0.05), rgba(0,0,0,0.05) 2px, transparent 2px, transparent 4px);
  pointer-events:none;
}
#campusgame-root.crt.zork .cg-card::before {
  background:
    radial-gradient(80% 60% at 50% 0%, color-mix(in srgb, var(--cg-accent) 18%, transparent), transparent 50%);
}
#campusgame-root.crt .cg-title, #campusgame-root.crt .cg-text, #campusgame-root.crt .cg-btn { text-shadow: 0 0 2px rgba(255,255,255,0.05); }

/* Reduced motion: trim overlays */
@media (prefers-reduced-motion: reduce) {
  #campusgame-root.crt .cg-card::after { background: none; }
}