* { box-sizing: border-box; }
:root {
  --bg-space: #0b1026;
  --bg-space-deep: #101a3b;
  --panel: rgba(22, 30, 72, 0.92);
  --panel-strong: #1d2a5c;
  --ink: #f3f5ff;
  --accent: #7b8cff;
  --accent-2: #ff8fd4;
  --accent-3: #7cf2b6;
  --outline: #c9d2ff;
  --shadow: 0 8px 0 rgba(0, 0, 0, 0.35);
}
body {
  margin: 0;
  font-family: "Fredoka", system-ui, -apple-system, Segoe UI, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top, #1b2a6e 0%, rgba(27, 42, 110, 0) 45%),
    linear-gradient(180deg, var(--bg-space) 0%, var(--bg-space-deep) 60%, #0a0f22 100%);
  position: relative;
}
.space-sky {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(2px 2px at 20px 30px, #ffffffcc 40%, transparent 60%),
    radial-gradient(1.5px 1.5px at 120px 80px, #d6e4ffcc 40%, transparent 60%),
    radial-gradient(1.8px 1.8px at 200px 140px, #fff4cc 40%, transparent 60%),
    radial-gradient(1.2px 1.2px at 320px 40px, #ffffffcc 40%, transparent 60%),
    radial-gradient(2px 2px at 420px 120px, #d6e4ffcc 40%, transparent 60%),
    radial-gradient(1.4px 1.4px at 520px 200px, #fff 40%, transparent 60%),
    radial-gradient(1.6px 1.6px at 640px 60px, #cfd8ffcc 40%, transparent 60%),
    radial-gradient(2px 2px at 720px 180px, #ffffffcc 40%, transparent 60%),
    radial-gradient(1.2px 1.2px at 860px 90px, #fff 40%, transparent 60%),
    radial-gradient(1.8px 1.8px at 980px 200px, #e8f0ffcc 40%, transparent 60%);
  opacity: 0.8;
  background-size: 1000px 300px;
  animation: twinkle 6s linear infinite;
}
.stars-2 {
  opacity: 0.6;
  background-size: 800px 260px;
  animation-duration: 10s;
}
.stars-3 {
  opacity: 0.35;
  background-size: 1200px 360px;
  animation-duration: 16s;
}
.planet {
  position: absolute;
  border-radius: 50%;
  border: 4px solid rgba(255, 255, 255, 0.35);
  box-shadow: 0 0 30px rgba(123, 140, 255, 0.35);
}
.planet-1 {
  width: 140px;
  height: 140px;
  background: radial-gradient(circle at 30% 30%, #ffd6ff, #9d7bff 70%);
  top: 6vh;
  right: 8vw;
}
.planet-2 {
  width: 90px;
  height: 90px;
  background: radial-gradient(circle at 40% 40%, #fff1a6, #ff8fd4 70%);
  top: 30vh;
  left: 6vw;
}
.planet-3 {
  width: 60px;
  height: 60px;
  background: radial-gradient(circle at 40% 40%, #a7f3ff, #59b7ff 70%);
  bottom: 14vh;
  right: 18vw;
}
.planet-4 {
  width: 110px;
  height: 110px;
  background: radial-gradient(circle at 30% 30%, #ffe6a7, #ff8fd4 70%);
  bottom: 30vh;
  left: 18vw;
  opacity: 0.85;
  animation: slowFloat 9s ease-in-out infinite;
}
.nebula {
  position: absolute;
  width: 360px;
  height: 220px;
  border-radius: 50%;
  filter: blur(20px);
  opacity: 0.35;
  mix-blend-mode: screen;
}
.nebula-1 {
  left: 6vw;
  top: 10vh;
  background: radial-gradient(circle, rgba(123,140,255,0.55), transparent 70%);
  animation: nebulaPulse 8s ease-in-out infinite;
}
.nebula-2 {
  right: 8vw;
  top: 40vh;
  background: radial-gradient(circle, rgba(255,143,212,0.5), transparent 70%);
  animation: nebulaPulse 10s ease-in-out infinite;
}
.shooting-star {
  position: absolute;
  width: 140px;
  height: 2px;
  background: linear-gradient(90deg, rgba(255,255,255,0.9), transparent);
  opacity: 0.6;
  transform: rotate(-20deg);
  animation: shooting 6s linear infinite;
}
.shooting-1 { top: 8vh; left: -20vw; animation-delay: 0s; }
.shooting-2 { top: 28vh; left: -30vw; animation-delay: 2s; }
.shooting-3 { top: 54vh; left: -25vw; animation-delay: 4s; }
.comet {
  position: absolute;
  width: 220px;
  height: 4px;
  background: linear-gradient(90deg, rgba(255,255,255,0.9), rgba(123,140,255,0.2), transparent);
  border-radius: 999px;
  opacity: 0.5;
  transform: rotate(-12deg);
  animation: comet 12s linear infinite;
}
.comet-1 { top: 12vh; right: -30vw; animation-delay: 1s; }
.comet-2 { top: 62vh; right: -40vw; animation-delay: 6s; }
.asteroid {
  position: absolute;
  width: 26px;
  height: 26px;
  background: radial-gradient(circle, #8a7bff, #3b2f2f 70%);
  border-radius: 50%;
  opacity: 0.7;
  box-shadow: 0 0 10px rgba(123,140,255,0.35);
  animation: drift 14s linear infinite;
}
.asteroid-1 { top: 18vh; left: 10vw; animation-delay: 0s; }
.asteroid-2 { top: 46vh; left: 70vw; animation-delay: 4s; }
.asteroid-3 { top: 70vh; left: 30vw; animation-delay: 8s; }
.ufo {
  position: absolute;
  width: 60px;
  height: 24px;
  border-radius: 999px;
  background: linear-gradient(180deg, #d6e4ff, #7b8cff);
  box-shadow: 0 0 14px rgba(123,140,255,0.45);
  animation: ufoFloat 6s ease-in-out infinite;
}
.ufo::after {
  content: "";
  position: absolute;
  left: 12px;
  top: -8px;
  width: 36px;
  height: 16px;
  border-radius: 999px 999px 8px 8px;
  background: rgba(255,255,255,0.6);
}
.ufo-1 { top: 20vh; right: 20vw; animation-delay: 0s; }
.ufo-2 { top: 50vh; left: 16vw; animation-delay: 2s; }
.spaceship {
  position: absolute;
  width: 80px;
  height: 26px;
  border-radius: 999px;
  background: linear-gradient(90deg, #ffd166, #ff8fd4);
  box-shadow: 0 0 14px rgba(255,143,212,0.45);
  animation: shipFly 10s linear infinite;
}
.spaceship::after {
  content: "";
  position: absolute;
  right: -10px;
  top: 8px;
  width: 18px;
  height: 10px;
  background: rgba(255,255,255,0.8);
  border-radius: 6px;
}
.ship-1 { top: 32vh; left: -30vw; animation-delay: 1s; }
.ship-2 { top: 68vh; left: -40vw; animation-delay: 5s; }
.celestial-city {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 30vh;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='1600' height='400' viewBox='0 0 1600 400'><rect width='1600' height='400' fill='none'/><g fill='%231b2552' stroke='%23c9d2ff' stroke-width='6'><rect x='20' y='140' width='180' height='220' rx='16'/><rect x='230' y='100' width='220' height='260' rx='16'/><rect x='490' y='160' width='180' height='200' rx='16'/><rect x='700' y='80' width='260' height='280' rx='16'/><rect x='1010' y='140' width='200' height='220' rx='16'/><rect x='1240' y='110' width='240' height='250' rx='16'/></g><g fill='%237b8cff' stroke='%23c9d2ff' stroke-width='6'><polygon points='20,140 110,70 200,140'/><polygon points='230,100 340,30 450,100'/><polygon points='490,160 580,120 670,160'/><polygon points='700,80 830,10 960,80'/><polygon points='1010,140 1110,90 1210,140'/><polygon points='1240,110 1360,40 1480,110'/></g><g fill='%23ff8fd4' stroke='%23c9d2ff' stroke-width='6'><circle cx='120' cy='220' r='10'/><circle cx='300' cy='210' r='10'/><circle cx='540' cy='240' r='10'/><circle cx='760' cy='210' r='10'/><circle cx='1080' cy='240' r='10'/><circle cx='1340' cy='220' r='10'/></g></svg>");
  background-repeat: repeat-x;
  background-position: bottom center;
  background-size: 1600px 400px;
  filter: drop-shadow(0 -6px 16px rgba(123, 140, 255, 0.35));
  opacity: 0.9;
}
@keyframes twinkle {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}
@keyframes slowFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes nebulaPulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.08); opacity: 0.5; }
}
@keyframes shooting {
  0% { transform: translateX(0) rotate(-20deg); opacity: 0; }
  10% { opacity: 0.7; }
  60% { opacity: 0.2; }
  100% { transform: translateX(140vw) rotate(-20deg); opacity: 0; }
}
@keyframes comet {
  0% { transform: translateX(0) rotate(-12deg); opacity: 0; }
  10% { opacity: 0.7; }
  80% { opacity: 0.2; }
  100% { transform: translateX(-160vw) rotate(-12deg); opacity: 0; }
}
@keyframes drift {
  0% { transform: translateY(0) rotate(0deg); }
  100% { transform: translateY(20vh) rotate(360deg); }
}
@keyframes ufoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes shipFly {
  0% { transform: translateX(0); }
  100% { transform: translateX(140vw); }
}
.container { max-width: 980px; margin: 0 auto; padding: 24px; position: relative; z-index: 1; }
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  background: var(--panel);
  border: 3px solid var(--outline);
  border-radius: 20px;
  padding: 12px 16px;
  box-shadow: var(--shadow);
}
.logo {
  font-weight: 800;
  font-size: 24px;
  letter-spacing: 0.5px;
  color: var(--accent);
  text-shadow: 2px 2px 0 #0b0f24;
}
.top-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.auth { display: flex; gap: 8px; align-items: center; }
.tab-bar {
  display: flex;
  gap: 10px;
  margin: 6px 0 14px;
}
.tab-btn {
  background: #1b2552;
  border: 2px solid var(--outline);
  color: #cdd6ff;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.18);
  transition: transform 0.06s ease, box-shadow 0.06s ease;
}
.tab-btn:hover { transform: translateY(-1px); }
.tab-btn:active { transform: translateY(2px); box-shadow: 0 2px 0 rgba(0, 0, 0, 0.18); }
.tab-btn.active {
  background: linear-gradient(180deg, #a58bff, #7b66ff);
  color: #fff;
}
.tab-panel { display: block; }
.ghost {
  background: var(--panel-strong);
  border: 2px solid var(--outline);
  color: var(--ink);
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.15);
  transition: transform 0.06s ease, box-shadow 0.06s ease;
}
.ghost:hover { transform: translateY(-1px); }
.ghost:active { transform: translateY(2px); box-shadow: 0 2px 0 rgba(0, 0, 0, 0.15); }

.spotify-tab{
  position: fixed;
  right: 14px;
  top: 120px;
  z-index: 50;
}
.spotify-tab summary{
  list-style: none;
  cursor: pointer;
  background: var(--panel);
  border: 2px solid var(--outline);
  color: var(--ink);
  padding: 8px 12px;
  border-radius: 999px;
  box-shadow: var(--shadow);
  font-weight: 700;
}
.spotify-tab summary::-webkit-details-marker{ display: none; }
.spotify-panel{
  margin-top: 8px;
  width: min(360px, 80vw);
  background: var(--panel);
  border: 2px solid var(--outline);
  border-radius: 16px;
  padding: 8px;
  box-shadow: var(--shadow);
}
.battle {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  align-items: center;
  margin-bottom: 16px;
  position: relative;
}
.enemy-visuals {
  display: grid;
  place-items: center;
  min-height: 120px;
}
.enemy-icon {
  width: 76px;
  height: 76px;
  border-radius: 20px;
  border: 3px solid var(--outline);
  background: #1b2552;
  display: grid;
  place-items: center;
  font-size: 34px;
  box-shadow: var(--shadow);
}
.fighter {
  background: var(--panel);
  padding: 14px;
  border-radius: 16px;
  border: 3px solid var(--outline);
  box-shadow: var(--shadow);
}
.label { font-weight: 700; margin-bottom: 6px; }
.avatar {
  --skin: #f2c9a0;
  --hair: #3b2f2f;
  --outfit: #8a7bff;
  --pet: #7cf9a2;
  width: 64px;
  height: 64px;
  position: relative;
  margin: 6px 0 10px;
}
.avatar-face {
  position: absolute;
  inset: 12px 14px 22px 14px;
  background: var(--skin);
  border: 3px solid var(--outline);
  border-radius: 12px;
}
.avatar-eyes {
  position: absolute;
  top: 26px;
  left: 22px;
  width: 6px;
  height: 6px;
  background: #1b1b36;
  border-radius: 50%;
  box-shadow: 14px 0 0 #1b1b36;
}
.avatar-mouth {
  position: absolute;
  top: 34px;
  left: 26px;
  width: 12px;
  height: 6px;
  border-bottom: 3px solid #1b1b36;
  border-radius: 0 0 10px 10px;
}
.avatar-hair {
  position: absolute;
  inset: 6px 10px 32px 10px;
  background: var(--hair);
  border: 3px solid var(--outline);
  border-bottom: none;
  border-radius: 14px 14px 10px 10px;
}
.avatar-body {
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 0;
  height: 20px;
  background: var(--outfit);
  border: 3px solid var(--outline);
  border-radius: 12px 12px 14px 14px;
}
.avatar-accessory {
  position: absolute;
  inset: 8px 12px auto 12px;
  height: 16px;
  border-radius: 999px;
  display: none;
}
.avatar.hat .avatar-accessory {
  display: block;
  background: #ffd166;
  border: 3px solid var(--outline);
}
.avatar.glasses .avatar-accessory {
  display: block;
  border: 3px solid var(--outline);
  background: transparent;
  box-shadow:
    16px 0 0 0 transparent,
    16px 0 0 3px var(--outline);
}
.avatar.crown .avatar-accessory {
  display: block;
  background: #ffe066;
  border: 3px solid var(--outline);
  clip-path: polygon(0 100%, 12% 20%, 25% 100%, 50% 20%, 75% 100%, 88% 20%, 100% 100%);
}
.avatar.gender-boy .avatar-hair { border-radius: 8px 8px 10px 10px; }
.avatar.gender-girl .avatar-hair { inset: 6px 8px 26px 8px; border-radius: 16px; }
.avatar-preview .avatar { width: 88px; height: 88px; }
.pet-display,
.pet-preview {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  font-size: 12px;
  color: #cdd6ff;
}
.pet {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: var(--pet);
  border: 3px solid var(--outline);
  position: relative;
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.2);
}
.pet.none { display: none; }
.pet::after {
  content: "";
  position: absolute;
  top: 12px;
  left: 10px;
  width: 4px;
  height: 4px;
  background: #1b1b36;
  border-radius: 50%;
  box-shadow: 10px 0 0 #1b1b36;
}
.pet.owl { border-radius: 50%; }
.pet.owl::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 9px;
  width: 16px;
  height: 6px;
  border-bottom: 3px solid #1b1b36;
  border-radius: 0 0 10px 10px;
}
.pet.cat::before,
.pet.cat::after {
  content: "";
  position: absolute;
  top: -8px;
  width: 10px;
  height: 10px;
  background: var(--pet);
  border: 3px solid var(--outline);
  border-bottom: none;
  border-radius: 6px 6px 0 0;
}
.pet.cat::before { left: 2px; }
.pet.cat::after { right: 2px; }
.pet.dog::before,
.pet.dog::after {
  content: "";
  position: absolute;
  top: -2px;
  width: 8px;
  height: 12px;
  background: var(--pet);
  border: 3px solid var(--outline);
  border-radius: 8px;
}
.pet.dog::before { left: -2px; }
.pet.dog::after { right: -2px; }
.pet.dragon::before {
  content: "";
  position: absolute;
  top: -8px;
  left: 6px;
  width: 22px;
  height: 10px;
  background: #ffd166;
  border: 3px solid var(--outline);
  clip-path: polygon(0 100%, 20% 10%, 40% 100%, 60% 10%, 80% 100%, 100% 10%);
}
.pet.fox::before,
.pet.fox::after {
  content: "";
  position: absolute;
  top: -6px;
  width: 10px;
  height: 10px;
  background: #ffb87a;
  border: 3px solid var(--outline);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
}
.pet.fox::before { left: 1px; }
.pet.fox::after { right: 1px; }
.pet.turtle::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 3px solid rgba(0,0,0,0.2);
  border-radius: 10px;
}
.hp-bar {
  width: 100%;
  height: 18px;
  background: #2a366b;
  border-radius: 999px;
  border: 2px solid var(--outline);
  overflow: hidden;
}
.hp-fill { height: 100%; background: linear-gradient(90deg, #7cf9a2, #3cd67b); transition: width 0.2s; }
.hp-text { margin-top: 6px; font-size: 12px; color: #cdd6ff; }
.vs {
  font-weight: 800;
  color: var(--accent);
  background: var(--panel);
  border: 3px solid var(--outline);
  border-radius: 999px;
  padding: 6px 12px;
  box-shadow: var(--shadow);
}

.status {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  justify-content: space-between;
  background: var(--panel);
  padding: 12px 14px;
  border-radius: 16px;
  margin-bottom: 16px;
  border: 3px solid var(--outline);
  box-shadow: var(--shadow);
}

.question-card {
  background: var(--panel);
  padding: 20px;
  border-radius: 18px;
  margin-bottom: 12px;
  border: 3px solid var(--outline);
  box-shadow: var(--shadow);
}
.question { font-size: 18px; margin-bottom: 14px; }
.answers { display: grid; gap: 10px; }
.answer-btn {
  background: #23306a;
  border: 3px solid var(--outline);
  color: var(--ink);
  padding: 12px;
  border-radius: 14px;
  text-align: left;
  cursor: pointer;
  box-shadow: 0 6px 0 rgba(0, 0, 0, 0.12);
  transition: transform 0.06s ease, box-shadow 0.06s ease;
}
.answer-btn:hover { transform: translateY(-1px); }
.answer-btn:active { transform: translateY(2px); box-shadow: 0 3px 0 rgba(0, 0, 0, 0.12); }

.message {
  min-height: 28px;
  margin: 8px 0 4px;
  text-align: center;
  font-weight: 700;
  letter-spacing: 0.3px;
}
.message.attack {
  color: #7cf2b6;
  animation: popGlow 0.35s ease-out;
  text-shadow: 0 0 12px rgba(124, 242, 182, 0.6);
}
.message.ouch {
  color: #ff8a8a;
  animation: ouchShake 0.45s ease-out;
  text-shadow: 0 0 14px rgba(255, 90, 90, 0.65);
}

@keyframes popGlow {
  0% { transform: scale(0.9); opacity: 0.4; }
  60% { transform: scale(1.08); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes ouchShake {
  0% { transform: scale(1) translateX(0); }
  20% { transform: scale(1.08) translateX(-6px); }
  40% { transform: scale(1.08) translateX(6px); }
  60% { transform: scale(1.06) translateX(-4px); }
  80% { transform: scale(1.04) translateX(4px); }
  100% { transform: scale(1); translateX(0); }
}

.end-screen {
  background: var(--panel);
  padding: 20px;
  border-radius: 16px;
  text-align: center;
  border: 3px solid var(--outline);
  box-shadow: var(--shadow);
}

.ai-helper {
  background: var(--panel);
  border: 3px solid var(--outline);
  padding: 16px;
  border-radius: 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.ai-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  cursor: grab;
}
.ai-header:active { cursor: grabbing; }
.ai-title { font-weight: 700; }
.ai-badge {
  font-size: 12px;
  color: var(--ink);
  border: 2px solid var(--outline);
  padding: 4px 8px;
  border-radius: 999px;
  background: #23306a;
}
.ai-helper textarea {
  width: 100%;
  background: #1b2552;
  color: var(--ink);
  border: 2px solid var(--outline);
  border-radius: 10px;
  padding: 10px;
  resize: vertical;
}
.ai-actions {
  display: flex;
  gap: 8px;
  margin: 10px 0 8px;
}
.ai-response {
  min-height: 40px;
  background: #1b2552;
  border: 2px dashed var(--outline);
  border-radius: 10px;
  padding: 10px;
  color: var(--ink);
  font-size: 14px;
}
.ai-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.ai-helper.floating {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: min(360px, 92vw);
  z-index: 40;
  margin-bottom: 0;
}
.primary {
  background: linear-gradient(180deg, #a58bff, #7b66ff);
  border: 3px solid var(--outline);
  color: #fff;
  padding: 10px 16px;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 6px 0 rgba(0, 0, 0, 0.15);
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.2);
  transition: transform 0.06s ease, box-shadow 0.06s ease;
}
.primary:hover { transform: translateY(-1px); }
.primary:active { transform: translateY(2px); box-shadow: 0 3px 0 rgba(0, 0, 0, 0.15); }

.levelup {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel);
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 800;
  border: 3px solid var(--outline);
  box-shadow: var(--shadow);
}
.hidden { display: none; }
.muted { color: #cdd6ff; font-size: 12px; }

.landing {
  background: var(--panel);
  border-radius: 18px;
  padding: 24px;
  margin-bottom: 20px;
  border: 3px solid var(--outline);
  box-shadow: var(--shadow);
}
.hero h1 { margin: 0 0 8px; font-size: 28px; }
.hero p { margin: 0 0 16px; color: #cdd6ff; }
.hero-cta { display: flex; gap: 12px; align-items: center; }
.features { display: grid; gap: 10px; margin-top: 18px; }
.feature-card {
  background: #1b2552;
  border: 3px solid var(--outline);
  padding: 12px;
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.domain-section { margin-top: 20px; }
.domain-section h2 { margin: 0 0 10px; font-size: 20px; }
.domain-list { display: grid; gap: 10px; }
.subject-group {
  background: var(--panel);
  border: 3px solid var(--outline);
  border-radius: 16px;
  padding: 8px 10px;
  box-shadow: var(--shadow);
}
.subject-group summary {
  list-style: none;
  cursor: pointer;
  font-weight: 800;
  color: var(--ink);
  padding: 6px 8px;
}
.subject-group summary::-webkit-details-marker { display: none; }
.subject-group summary::after {
  content: "▾";
  float: right;
  color: var(--accent);
}
.subject-group[open] summary::after { content: "▴"; }
.subject-group .domain-card {
  margin-top: 8px;
  background: #1b2552;
}
.domain-card {
  border: 3px solid var(--outline);
  border-radius: 14px;
  padding: 12px;
  box-shadow: var(--shadow);
}
.domain-title { font-weight: 700; margin-bottom: 6px; }
.subdomain-list { display: flex; flex-wrap: wrap; gap: 8px; }
.subdomain-pill {
  background: #23306a;
  border: 2px solid var(--outline);
  padding: 6px 8px;
  border-radius: 999px;
  font-size: 12px;
}

.practice-panel {
  background: var(--panel);
  border-radius: 16px;
  padding: 12px;
  margin-bottom: 16px;
  border: 3px solid var(--outline);
  box-shadow: var(--shadow);
}

.avatar-panel {
  margin-top: 16px;
  background: var(--panel);
  border-radius: 16px;
  padding: 12px;
  border: 3px solid var(--outline);
  box-shadow: var(--shadow);
}
.avatar-customizer {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 12px;
  align-items: center;
}
.avatar-preview {
  background: #1b2552;
  border: 3px solid var(--outline);
  border-radius: 16px;
  padding: 10px;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow);
}
.pet-preview {
  margin-top: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #1b2552;
  border: 2px solid var(--outline);
  font-size: 12px;
}
.pet-display {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #1b2552;
  border: 2px solid var(--outline);
  font-size: 12px;
  margin-bottom: 8px;
}
.avatar-controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 12px;
  align-items: center;
}
.avatar-controls label { font-size: 12px; color: #cdd6ff; }
.avatar-controls input,
.avatar-controls select {
  background: #1b2552;
  color: var(--ink);
  border: 2px solid var(--outline);
  border-radius: 8px;
  padding: 6px;
}
.practice-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr)) auto;
  gap: 10px;
  align-items: end;
}
.practice-group { display: flex; flex-direction: column; gap: 6px; }
.practice-group label { font-size: 12px; color: #cdd6ff; }
.practice-group select {
  background: #1b2552;
  color: var(--ink);
  border: 2px solid var(--outline);
  padding: 8px;
  border-radius: 8px;
}
.selection-stats { margin-top: 10px; color: #cdd6ff; font-size: 12px; }

.progress-panel {
  margin-top: 16px;
  background: var(--panel);
  border-radius: 16px;
  padding: 12px;
  border: 3px solid var(--outline);
  box-shadow: var(--shadow);
}
.progress-panel h3 { margin: 0 0 10px; }
.progress-domain { margin-bottom: 10px; }
.progress-domain-title { font-weight: 700; margin-bottom: 6px; }
.progress-item {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 2px dashed rgba(255, 255, 255, 0.15);
  font-size: 13px;
}
.progress-item:last-child { border-bottom: none; }

.achievements-panel {
  margin-top: 16px;
  background: var(--panel);
  border-radius: 16px;
  padding: 12px;
  border: 3px solid var(--outline);
  box-shadow: var(--shadow);
}
.achievements-panel h3 { margin: 0 0 10px; }
.achievements-list {
  display: grid;
  gap: 8px;
}
.achievement {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: #1b2552;
  border: 2px solid var(--outline);
  border-radius: 12px;
  padding: 8px 10px;
  font-size: 13px;
  box-shadow: var(--shadow);
}
.achievement .title { font-weight: 700; }
.achievement .desc { color: #cdd6ff; font-size: 12px; }
.achievement.locked {
  opacity: 0.5;
  filter: grayscale(0.4);
}
.achievement .badge {
  background: linear-gradient(180deg, #a58bff, #7b66ff);
  color: #fff;
  border: 2px solid var(--outline);
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 11px;
  white-space: nowrap;
}


.shake { animation: shake 0.25s; }
@keyframes shake {
  0% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  50% { transform: translateX(8px); }
  75% { transform: translateX(-8px); }
  100% { transform: translateX(0); }
}

.sword-slash {
  position: absolute;
  left: 50%;
  top: 20%;
  width: 200px;
  height: 6px;
  background: linear-gradient(90deg, transparent, #ffffff, #a58bff, transparent);
  border-radius: 999px;
  transform: translateX(-50%) rotate(-12deg) scaleX(0);
  opacity: 0;
  pointer-events: none;
  filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.6));
}
.battle.sword-attack .sword-slash {
  animation: swordSlash 0.45s ease-out;
}
@keyframes swordSlash {
  0% { opacity: 0; transform: translateX(-50%) rotate(-12deg) scaleX(0); }
  40% { opacity: 1; transform: translateX(-50%) rotate(-12deg) scaleX(1); }
  100% { opacity: 0; transform: translateX(-50%) rotate(-12deg) scaleX(1.2); }
}

.dragon {
  position: relative;
  width: 160px;
  height: 120px;
  animation: dragonFloat 3s ease-in-out infinite;
}
.dragon-body {
  position: absolute;
  left: 20px;
  top: 40px;
  width: 120px;
  height: 50px;
  background: #d44b4b;
  border: 3px solid var(--outline);
  border-radius: 40px;
  box-shadow: var(--shadow);
}
.dragon-head {
  position: absolute;
  left: 0;
  top: 30px;
  width: 46px;
  height: 36px;
  background: #d44b4b;
  border: 3px solid var(--outline);
  border-radius: 16px 16px 12px 12px;
}
.dragon-head::after {
  content: "";
  position: absolute;
  right: -8px;
  top: 12px;
  width: 10px;
  height: 10px;
  background: #ffd166;
  border: 3px solid var(--outline);
  border-radius: 4px;
}
.dragon-wing {
  position: absolute;
  top: 12px;
  width: 70px;
  height: 50px;
  background: #ff8ecb;
  border: 3px solid var(--outline);
  border-radius: 60px 60px 10px 10px;
  animation: wingFlap 1.1s ease-in-out infinite;
}
.dragon-wing.left { left: 30px; transform-origin: bottom right; }
.dragon-wing.right { right: 10px; transform-origin: bottom left; animation-delay: 0.1s; }
.dragon-fire {
  position: absolute;
  left: -34px;
  top: 40px;
  width: 60px;
  height: 16px;
  background: linear-gradient(90deg, #ffd166, #ff7b7b, transparent);
  border-radius: 999px;
  opacity: 0;
  transform: scaleX(0);
  transform-origin: right center;
}
.dragon.fire .dragon-fire {
  animation: dragonFire 0.55s ease-out;
}
@keyframes dragonFire {
  0% { opacity: 0; transform: scaleX(0); }
  40% { opacity: 1; transform: scaleX(1); }
  100% { opacity: 0; transform: scaleX(1.2); }
}
@keyframes dragonFloat {
  0% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
  100% { transform: translateY(0); }
}
@keyframes wingFlap {
  0% { transform: rotate(0deg); }
  50% { transform: rotate(12deg); }
  100% { transform: rotate(0deg); }
}

#confettiCanvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

/* ========= COMBAT LAYOUT ========= */
.combat-layout{
  display:grid;
  grid-template-columns: 1.15fr 1fr;
  gap:16px;
  align-items: start;
  margin-top: 12px;
}

.combat-left{
  display:flex;
  flex-direction: column;
  gap: 12px;
}

.combat-right{
  display:flex;
  align-items:flex-start;
  justify-content:center;
}

.battle-stage{
  width:100%;
  min-height: 320px;
}

.battle-mode-label{
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel);
  border: 2px solid var(--outline);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  box-shadow: var(--shadow);
}

/* Hide “options/config” during battle */
body.in-battle #practicePanel { display:none !important; }
body.in-battle .tab-bar { display:none !important; }

/* Make question panel feel like a command console */
.question-card{
  position: relative;
}

.answers .answer-btn{
  position: relative;
  overflow:hidden;
}
.answers .answer-btn::after{
  content:"";
  position:absolute;
  inset:0;
  background: radial-gradient(circle at 20% 30%, rgba(255,255,255,0.18), transparent 55%);
  opacity:0;
  transition: opacity .12s ease;
}
.answers .answer-btn:hover::after{ opacity:1; }

/* ========= IMPACT / FLASH ========= */
body.flash {
  filter: brightness(1.15) saturate(1.08);
}

/* Stronger shake */
.battle.shake { animation: shake 0.25s linear; }
.fighter.shake { animation: shake 0.25s linear; }
@keyframes shake {
  0% { transform: translateX(0); }
  25% { transform: translateX(-7px); }
  50% { transform: translateX(7px); }
  75% { transform: translateX(-4px); }
  100% { transform: translateX(0); }
}

/* ========= SWORD SLASH VFX ========= */
.sword-slash{
  position:absolute;
  inset:-10px;
  pointer-events:none;
  opacity:0;
  background:
    linear-gradient(120deg,
      transparent 43%,
      rgba(255,255,255,0.95) 50%,
      transparent 57%);
  mix-blend-mode: screen;
  filter: blur(0.5px);
}

.battle.sword-attack .sword-slash{
  animation: slash 0.35s ease-out;
}

@keyframes slash{
  from { opacity:0; transform: translateX(-45%) rotate(-10deg) scale(1.05); }
  30% { opacity:1; }
  to { opacity:0; transform: translateX(45%) rotate(10deg) scale(1.08); }
}

/* ========= PROJECTILES ========= */
.vfx-layer{
  position:absolute;
  inset:0;
  pointer-events:none;
  overflow: visible;
}

.projectile{
  position:absolute;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  filter: drop-shadow(0 0 10px rgba(255,255,255,0.55));
  opacity: 0.95;
}

.projectile.spark{
  background: radial-gradient(circle, #ffffff 0%, #7b8cff 55%, transparent 70%);
}
.projectile.fireball{
  background: radial-gradient(circle, #fff1a6 0%, #ff5a5a 50%, transparent 72%);
}
.projectile.ice{
  background: radial-gradient(circle, #e9fbff 0%, #59b7ff 55%, transparent 72%);
}

.projectile.fly{
  animation: fly 0.38s ease-in forwards;
}

@keyframes fly{
  from { transform: translate(0,0) scale(1); opacity: 1; }
  70% { opacity: 1; }
  to { transform: translate(var(--dx), var(--dy)) scale(1.3); opacity: 0; }
}

/* ========= DRAGON FIRE ========= */
.dragon.fire .dragon-fire{
  animation: firebreath 0.6s ease-out;
}

@keyframes firebreath{
  from { opacity:0; transform: scaleX(0); }
  30% { opacity:1; transform: scaleX(1); }
  to { opacity:0; transform: scaleX(1.35); }
}

/* ========= HP BAR FEEDBACK ========= */
.hp-fill.hp-hit{
  animation: hpHit 0.15s ease-in-out;
}
.hp-fill.hp-heal{
  animation: hpHeal 0.15s ease-in-out;
}
@keyframes hpHit{
  from { box-shadow: 0 0 12px rgba(255,90,90,0.9); filter: brightness(1.15); }
  to { box-shadow: none; filter: none; }
}
@keyframes hpHeal{
  from { box-shadow: 0 0 12px rgba(120,255,180,0.9); filter: brightness(1.2); }
  to { box-shadow: none; filter: none; }
}

/* ========= MOBILE LAYOUT ========= */
@media (max-width: 820px) {
  .combat-layout{
    grid-template-columns: 1fr;
  }
  .combat-right{
    justify-content: stretch;
  }
}