/* htmlgamekit base -- reset, custom properties, and light-DOM
   content styles. Scene visibility is handled by game-shell
   via manual slot assignment (no CSS display toggling). */

game-shell:not(:defined) {
  display: none;
}

game-shell :not(:defined) {
  visibility: hidden;
}

:root {
  --game-bg: #111;
  --game-text: #eee;
  --game-accent: #fff;
  --game-overlay-bg: rgba(0, 0, 0, 0.8);
  --game-btn-bg: #fff;
  --game-btn-text: #111;
  --game-btn-border: rgba(255, 255, 255, 0.5);
  --game-result-gradient-from: #6ee7b7;
  --game-result-gradient-to: #3b82f6;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  width: 100dvw;
  height: 100dvh;
  overflow: clip;
  font-family:
    system-ui,
    -apple-system,
    sans-serif;
  background: var(--game-bg);
  color: var(--game-text);
  user-select: none;
  -webkit-user-select: none;
}

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

/* --- Overlay styling (opt-in via data-overlay) --- */

[data-overlay] {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--game-overlay-bg, rgba(0, 0, 0, 0.8));
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 100;
  text-align: center;
  padding: max(40px, env(safe-area-inset-top))
    max(40px, env(safe-area-inset-right)) max(40px, env(safe-area-inset-bottom))
    max(40px, env(safe-area-inset-left));
  overflow-y: auto;
  color: var(--game-text, #eee);
}

/* --- Overlay content (light DOM inside [data-overlay]) --- */

[data-overlay] h1 {
  font-size: clamp(28px, 5vw, 56px);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

[data-overlay] p {
  font-size: clamp(14px, 2vw, 20px);
  max-width: 600px;
  line-height: 1.6;
  opacity: 0.8;
  margin-bottom: 12px;
}

[data-overlay] button {
  margin-top: 24px;
  padding: 14px 40px;
  font-size: 18px;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  background: var(--game-btn-bg);
  color: var(--game-btn-text);
  cursor: pointer;
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease;
  font-family: inherit;
}

[data-overlay] button:hover {
  transform: scale(1.04);
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.2);
}

[data-overlay] .result-buttons,
[data-overlay] [style*="display:flex"] {
  margin-top: 24px;
}

[data-overlay] .result-buttons button,
[data-overlay] [style*="display:flex"] button {
  margin-top: 0;
}

[data-overlay] button[command="--restart"] {
  background: var(--game-btn-bg);
  color: var(--game-btn-text);
}

/* Toast pass/fail default colours */

game-toast[trigger="pass"] {
  --game-toast-color: #6ee7b7;
}
game-toast[trigger="fail"],
game-toast[trigger="timeout"] {
  --game-toast-color: #f87171;
}

/* Links inside overlays */

[data-overlay] a {
  color: rgba(255, 255, 255, 0.45);
  text-decoration: none;
  transition: color 0.15s ease;
}

[data-overlay] a:hover {
  color: rgba(255, 255, 255, 0.75);
}

[data-overlay] #intro-tip {
  font-size: 14px;
  opacity: 0.5;
  font-style: italic;
}

[data-overlay] .group-name {
  display: none;
  font-size: 14px;
  opacity: 0.5;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
  font-weight: 600;
}

[data-overlay] #result-desc {
  margin-top: 16px;
  font-size: clamp(14px, 1.8vw, 18px);
  max-width: 550px;
  opacity: 0.7;
}

[data-overlay] game-score-form {
  display: block;
  margin-top: 32px;
  margin-bottom: 32px;
}

/* Result messages */

game-result-message {
  display: none;
  margin-top: 16px;
  font-size: clamp(14px, 1.8vw, 18px);
  max-width: 550px;
  opacity: 0.7;
  line-height: 1.6;
}

game-result-message:state(active) {
  display: block;
}

/* --- Quiz component (light-DOM styles for <game-quiz>) --- */

game-quiz {
  color: var(--game-text, #eee);
}

game-quiz fieldset {
  border: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  width: 100%;
  max-width: 540px;
  margin: 0 auto;
}

game-quiz fieldset[hidden] {
  display: none;
}

game-quiz legend {
  grid-column: 1 / -1;
  font-size: clamp(24px, 4vw, 48px);
  font-weight: 900;
  text-align: center;
  margin-bottom: 8px;
  width: 100%;
}

game-quiz label {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px 12px;
  font-size: clamp(14px, 2vw, 20px);
  font-weight: 600;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  cursor: pointer;
  transition:
    border-color 0.15s ease,
    background 0.15s ease,
    transform 0.1s ease;
  text-align: center;
}

game-quiz label:hover {
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.1);
  transform: scale(1.02);
}

game-quiz label:has(input:disabled) {
  cursor: default;
  transform: none;
}

game-quiz label:has(input:disabled):hover {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.05);
  transform: none;
}

game-quiz label.correct {
  border-color: #6ee7b7;
  background: rgba(110, 231, 183, 0.2);
}

game-quiz label.wrong {
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.2);
}

game-quiz input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}