/* ===== Minecraft PvP birthday invite theme ===== */

:root{
  --grass: #5d9c3f;
  --grass-dark: #3a7d1f;
  --dirt: #7a5230;
  --dirt-dark: #4d3320;
  --stone: #8a8a8a;
  --stone-dark: #545454;
  --diamond: #4fd6e8;
  --diamond-dark: #1fa3b5;
  --redstone: #d63b3b;
  --gold: #ffd23f;
  --bg: #1a1a1d;
  --panel-bg: #2b2b30;
  --text: #f1f1e8;
  color-scheme: dark;
}

*{ box-sizing: border-box; }

body{
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: 'Press Start 2P', monospace;
  font-size: 12px;
  line-height: 1.7;
  overflow-x: hidden;
  padding: max(16px, env(safe-area-inset-top, 0px)) 16px max(16px, env(safe-area-inset-bottom, 0px));
  image-rendering: pixelated;
}

.sky{
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 20% 15%, rgba(255,255,255,0.08) 0 2px, transparent 3px),
    radial-gradient(circle at 70% 30%, rgba(255,255,255,0.06) 0 2px, transparent 3px),
    radial-gradient(circle at 45% 60%, rgba(255,255,255,0.05) 0 2px, transparent 3px),
    linear-gradient(180deg, #0e0e12 0%, #1a1a1d 60%, #14140f 100%);
}

.screen{
  display: none;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding-block: 24px;
}
.screen.active{ display: flex; }

.panel{
  width: 100%;
  max-width: 480px;
  background: var(--panel-bg);
  border: 4px solid #000;
  box-shadow:
    inset 4px 4px 0 rgba(255,255,255,0.08),
    inset -4px -4px 0 rgba(0,0,0,0.5),
    0 0 0 4px var(--stone-dark);
  padding: 28px 20px;
  text-align: center;
}

.title{
  font-size: 20px;
  line-height: 1.5;
  color: var(--gold);
  text-shadow: 3px 3px 0 #000;
  margin: 0 0 16px;
  letter-spacing: 1px;
}
.title.small{ font-size: 16px; }

.sub{
  color: var(--text);
  opacity: 0.85;
  margin: 0 0 20px;
  font-size: 10px;
}

.code-box{ margin: 24px 0 12px; }
.code-label{
  display: block;
  color: var(--diamond);
  margin-bottom: 10px;
  font-size: 10px;
}

.input-row{
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.code-input{
  flex: 1 1 180px;
  min-width: 0;
  font-family: inherit;
  font-size: 12px;
  padding: 12px 10px;
  background: #101012;
  border: 3px solid #000;
  box-shadow: inset 2px 2px 0 rgba(0,0,0,0.6), inset -2px -2px 0 rgba(255,255,255,0.05);
  color: var(--gold);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 2px;
}
.code-input.small{ text-transform: none; letter-spacing: 0.5px; flex: 1 1 140px; }
.code-input:focus{ outline: 2px solid var(--diamond); }

.mc-btn{
  font-family: inherit;
  font-size: 11px;
  padding: 12px 16px;
  border: 3px solid #000;
  cursor: pointer;
  color: #101012;
  text-shadow: none;
  transition: transform 0.05s ease;
}
.mc-btn:active{ transform: translateY(2px); }

.mc-btn-green{
  background: var(--grass);
  box-shadow: inset 3px 3px 0 rgba(255,255,255,0.35), inset -3px -3px 0 rgba(0,0,0,0.35);
  color: #10240a;
}
.mc-btn-blue{
  background: var(--diamond);
  box-shadow: inset 3px 3px 0 rgba(255,255,255,0.4), inset -3px -3px 0 rgba(0,0,0,0.3);
  color: #052226;
}

.feedback{
  min-height: 1.6em;
  font-size: 10px;
  margin: 12px 0 0;
}
.feedback.bad{ color: var(--redstone); }
.feedback.good{ color: var(--grass); }

.hearts{
  margin: 14px 0 4px;
  font-size: 16px;
  letter-spacing: 6px;
  color: var(--redstone);
}
.hearts .heart.lost{ color: #3a3a3a; }
.hearts.shake{ animation: shake 0.35s ease; }

@keyframes shake{
  0%,100%{ transform: translateX(0); }
  20%{ transform: translateX(-6px); }
  40%{ transform: translateX(6px); }
  60%{ transform: translateX(-4px); }
  80%{ transform: translateX(4px); }
}

.link-btn{
  display: block;
  margin: 18px auto 0;
  background: none;
  border: none;
  color: var(--diamond);
  font-family: inherit;
  font-size: 10px;
  cursor: pointer;
  text-decoration: underline;
}

.terminal-line{
  text-align: left;
  font-size: 10px;
  color: #8fef8f;
  margin: 0 0 8px;
  opacity: 0.9;
}
.terminal-line .hl{ color: var(--gold); }
.terminal-line .dim{ color: var(--stone); }

.puzzle-box{
  margin-top: 14px;
  padding: 14px;
  border: 2px dashed var(--stone);
  background: rgba(0,0,0,0.25);
  text-align: left;
}
.puzzle-box.hidden{ display: none; }
.puzzle-text{ font-size: 10px; margin: 0 0 12px; line-height: 1.8; }

.skip-link{
  display: inline-block;
  margin-top: 22px;
  color: var(--stone);
  opacity: 0.8;
  font-size: 9px;
  text-decoration: none;
  border-bottom: 1px dotted var(--stone);
}
.skip-link:hover{ color: var(--diamond); opacity: 1; }

/* ===== chest transition ===== */
.chest-screen{ display: none; align-items: center; justify-content: center; flex-direction: column; }
.chest-screen.active{ display: flex; }

.chest{
  position: relative;
  width: 140px;
  height: 110px;
}
.chest-body{
  position: absolute;
  bottom: 0; left: 0;
  width: 140px; height: 70px;
  background: var(--dirt);
  border: 4px solid #000;
  box-shadow: inset 6px 6px 0 rgba(255,255,255,0.15), inset -6px -6px 0 rgba(0,0,0,0.4);
}
.chest-lid{
  position: absolute;
  top: 0; left: 0;
  width: 140px; height: 46px;
  background: var(--dirt-dark);
  border: 4px solid #000;
  border-bottom: none;
  transform-origin: bottom;
  animation: lid-open 1.1s ease forwards;
  animation-delay: 0.3s;
}
@keyframes lid-open{
  0%{ transform: rotateX(0deg); }
  100%{ transform: rotateX(-110deg); }
}
.chest-glow{
  position: absolute;
  top: 30px; left: 50%;
  width: 10px; height: 10px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 0 0 var(--gold);
  transform: translateX(-50%) scale(0);
  animation: glow-pop 1.1s ease forwards;
  animation-delay: 0.6s;
}
@keyframes glow-pop{
  0%{ transform: translateX(-50%) scale(0); box-shadow: 0 0 0 0 rgba(255,210,63,0.6); }
  60%{ transform: translateX(-50%) scale(14); box-shadow: 0 0 40px 20px rgba(255,210,63,0.5); }
  100%{ transform: translateX(-50%) scale(22); opacity: 0; }
}
.chest-text{
  margin-top: 28px;
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 3px;
}

/* ===== reveal screen ===== */
.reveal-screen{ display: none; }
.reveal-screen.active{ display: flex; }

.reveal-panel{ animation: fade-up 0.6s ease; }
@keyframes fade-up{
  from{ opacity: 0; transform: translateY(16px); }
  to{ opacity: 1; transform: translateY(0); }
}

.achievement{
  display: flex;
  align-items: center;
  gap: 12px;
  background: #101012;
  border: 3px solid var(--gold);
  padding: 10px 14px;
  margin: 0 0 20px;
  text-align: left;
}
.achievement-icon{ color: var(--gold); font-size: 22px; }
.achievement-title{ color: var(--gold); font-size: 10px; }
.achievement-sub{ color: var(--text); font-size: 9px; opacity: 0.8; margin-top: 4px; }

.achievement.locked{ border-color: var(--stone); }
.achievement.locked .achievement-icon{ color: var(--stone); }
.achievement.locked .achievement-title{ color: var(--stone); }

.invite-grid{
  display: grid;
  gap: 14px;
  margin: 20px 0;
  text-align: left;
}
.invite-item{
  background: rgba(0,0,0,0.3);
  border: 2px solid var(--stone-dark);
  padding: 12px 14px;
}
.invite-label{
  color: var(--diamond);
  font-size: 9px;
  margin-bottom: 8px;
}
.invite-value{ font-size: 10px; line-height: 1.8; }
.invite-value em{ color: var(--gold); font-style: normal; opacity: 0.9; }

/* ===== quiz page ===== */
.quiz-panel{ max-width: 560px; text-align: left; }
.quiz-panel .title{ text-align: center; }
.quiz-panel .sub{ text-align: center; }

.quiz-meta{
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  border-top: 2px dashed var(--stone-dark);
  border-bottom: 2px dashed var(--stone-dark);
  padding: 12px 0;
  margin-top: 10px;
}
.quiz-score{ color: var(--gold); flex: 0 0 auto; }

.quiz-question{ margin: 18px 0; }
.quiz-q-text{ font-size: 10px; margin: 0 0 10px; line-height: 1.8; color: var(--diamond); }

.quiz-option{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  margin-bottom: 6px;
  background: rgba(0,0,0,0.25);
  border: 2px solid var(--stone-dark);
  font-size: 10px;
  cursor: pointer;
}
.quiz-option input{ accent-color: var(--diamond); width: 14px; height: 14px; flex: 0 0 auto; }
.quiz-option:has(input:checked){
  border-color: var(--diamond);
  background: rgba(79, 214, 232, 0.12);
}

/* ===== boss fight page ===== */
.battle-ui{
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 14px 0 10px;
}
.boss-name{ color: var(--redstone); font-size: 11px; }

.battle-box-wrap{
  display: flex;
  justify-content: center;
  margin: 4px 0;
}
#battle-canvas, #runner-canvas, #tetris-canvas, #duel-canvas{
  background: #000;
  touch-action: none;
  max-width: 100%;
  cursor: none;
}

.tetris-controls{
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 12px 0 4px;
}
.tetris-controls .mc-btn{
  padding: 10px 14px;
  font-size: 14px;
}

.you-died{
  color: var(--redstone);
  font-size: 16px;
  text-align: center;
  text-shadow: 2px 2px 0 #000;
}

.music-toggle{
  position: fixed;
  right: 14px;
  bottom: calc(14px + env(safe-area-inset-bottom, 0px));
  z-index: 50;
  width: 36px;
  height: 36px;
  border: 2px solid #000;
  background: var(--panel-bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 2px 2px 0 rgba(0,0,0,0.5);
}

@media (max-width: 420px){
  .title{ font-size: 16px; }
  body{ font-size: 11px; }
}