:root {
  --bg-a: #051018;
  --bg-b: #10293e;
  --line: #73f2ff;
  --accent: #ffd166;
  --danger: #ff5d73;
  --panel: #07111bcc;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: #eef8ff;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: radial-gradient(circle at 20% 10%, #204469 0%, var(--bg-b) 35%, var(--bg-a) 100%);
}

.app {
  max-width: 1080px;
  margin: 0 auto;
  padding: 1rem;
}

.hud {
  background: var(--panel);
  border: 1px solid #ffffff22;
  border-radius: 14px;
  padding: 1rem;
  margin-bottom: 1rem;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: 1.4rem;
}

.stats {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-bottom: 0.7rem;
}

.auth {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  flex-wrap: wrap;
}

button {
  border: 1px solid #ffffff33;
  background: #0d1f30;
  color: #f8fcff;
  border-radius: 8px;
  padding: 0.5rem 0.8rem;
  cursor: pointer;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.hint {
  margin: 0.7rem 0 0;
  opacity: 0.85;
}

.shop {
  margin-top: 0.9rem;
  border-top: 1px solid #ffffff1f;
  padding-top: 0.8rem;
}

.shop h2 {
  margin: 0 0 0.6rem;
  font-size: 1rem;
}

.shop-row {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.45rem;
}

select {
  border: 1px solid #ffffff33;
  background: #0d1f30;
  color: #f8fcff;
  border-radius: 8px;
  padding: 0.45rem 0.6rem;
}

#shopMsg {
  margin: 0.5rem 0 0;
  min-height: 1.1rem;
  opacity: 0.85;
}

.leaderboard {
  margin-top: 0.9rem;
  border-top: 1px solid #ffffff1f;
  padding-top: 0.8rem;
}

.leaderboard h2 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.leaderboard ol {
  margin: 0;
  padding-left: 1.2rem;
}

.leaderboard li {
  margin-bottom: 0.3rem;
  font-size: 0.92rem;
}

.leaderboard-note {
  margin: 0.5rem 0 0;
  opacity: 0.7;
  font-size: 0.85rem;
}

.site-version {
  margin-top: 0.9rem;
  border-top: 1px solid #ffffff1f;
  padding-top: 0.8rem;
}

.site-version h2 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

#versionText {
  margin: 0;
  font-size: 0.95rem;
  opacity: 0.85;
}

.editor-toggle {
  margin-top: 0.9rem;
}

.editor.hidden {
  display: none;
}

.editor {
  margin-top: 0.9rem;
  border-top: 1px solid #ffffff1f;
  padding-top: 0.8rem;
}

.editor h2 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.editor-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.5rem;
}

.editor-row label {
  min-width: 70px;
}

.editor-row input,
.editor-row textarea {
  border: 1px solid #ffffff33;
  background: #0d1f30;
  color: #f8fcff;
  border-radius: 8px;
  padding: 0.45rem 0.6rem;
}

#editorData {
  width: 100%;
  min-height: 110px;
  resize: vertical;
}

#editorMsg {
  margin: 0.5rem 0 0;
  opacity: 0.85;
}

.game-wrap {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid #ffffff22;
  box-shadow: 0 10px 35px #00000088;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  background: linear-gradient(180deg, #0f2e49 0%, #07131f 100%);
}

.game-top {
  position: absolute;
  top: 0.7rem;
  left: 0.7rem;
  right: 0.7rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  z-index: 3;
  pointer-events: none;
}

.game-stats {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  background: #051018bb;
  border: 1px solid #ffffff24;
  border-radius: 10px;
  padding: 0.45rem 0.6rem;
  font-size: 0.92rem;
}

#openAuthBtn {
  pointer-events: auto;
}

.game-mp {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  align-items: flex-end;
  pointer-events: auto;
}

.game-mp-actions {
  display: flex;
  gap: 0.5rem;
}

#mpStatus {
  font-size: 0.82rem;
  background: #051018bb;
  border: 1px solid #ffffff24;
  border-radius: 10px;
  padding: 0.35rem 0.55rem;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  background: #00000044;
}

.overlay.hidden {
  display: none;
}

.overlay h2 {
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.auth-modal {
  position: fixed;
  inset: 0;
  background: #00000070;
  display: grid;
  place-items: center;
  z-index: 10;
  padding: 1rem;
}

.auth-modal.hidden {
  display: none;
}

.auth-card {
  width: min(480px, 100%);
  background: #07111bf5;
  border: 1px solid #ffffff2a;
  border-radius: 12px;
  padding: 1rem;
  position: relative;
}

.auth-card h2 {
  margin: 0 0 0.5rem;
}

.auth-card input {
  width: 100%;
  margin-bottom: 0.5rem;
  border: 1px solid #ffffff33;
  background: #0d1f30;
  color: #f8fcff;
  border-radius: 8px;
  padding: 0.5rem 0.6rem;
}

.auth-actions {
  display: grid;
  gap: 0.45rem;
}

#roomListSelect {
  width: 100%;
}

.close-btn {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  padding: 0.35rem 0.6rem;
}

#roomCodeDisplay {
  margin: 0.6rem 0 0;
  font-size: 0.95rem;
  opacity: 0.85;
}

@media (max-width: 640px) {
  .shop-row {
    grid-template-columns: 1fr;
  }

  .game-stats {
    font-size: 0.82rem;
  }
}