:root {
  --bg-a: #0f1d1f;
  --bg-b: #26142e;
  --panel: rgba(10, 16, 24, 0.86);
  --line: rgba(173, 230, 208, 0.33);
  --text: #f4f8ff;
  --muted: #b9c9d6;
  --accent: #66f3bd;
  --accent-2: #ffcd57;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Segoe UI", "Yu Gothic UI", sans-serif;
  background: radial-gradient(circle at 20% 15%, #24493f 0%, transparent 40%),
    radial-gradient(circle at 90% 10%, #4a214f 0%, transparent 35%),
    linear-gradient(145deg, var(--bg-a), var(--bg-b));
}

.bg-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: url("./images/背景.png") center/cover no-repeat;
  opacity: 0.14;
  animation: bgPulse 6.2s ease-in-out infinite alternate;
}

.top-screen {
  position: relative;
  z-index: 1;
  max-width: 1260px;
  margin: 0 auto;
  padding: 22px 16px 36px;
}

.title-wrap {
  text-align: center;
  animation: riseIn 820ms ease-out both;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 700;
}

.title {
  margin: 8px 0 0;
  font-size: clamp(2rem, 6vw, 3.8rem);
  line-height: 1;
  letter-spacing: 0.04em;
  text-shadow: 0 4px 24px rgba(102, 243, 189, 0.26);
}

.lobby-card {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 16px;
}

.table-stage {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
  background: rgba(7, 12, 18, 0.7);
  backdrop-filter: blur(4px);
  aspect-ratio: 1376 / 768;
  animation: riseIn 980ms ease-out both;
  cursor: pointer;
}

.table-image,
.character-composite,
.char-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.table-image,
.char-overlay {
  object-fit: contain;
  object-position: center;
}

.character-composite {
  pointer-events: none;
}

.char-overlay {
  opacity: 1;
  transition: filter 220ms ease;
}

.char-overlay.selected {
  filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.95))
    drop-shadow(0 0 10px rgba(102, 243, 189, 0.95))
    drop-shadow(0 0 20px rgba(102, 243, 189, 0.45));
}

.settings-panel {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
  backdrop-filter: blur(8px);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  animation: riseIn 1100ms ease-out both;
}

.settings-panel h2 {
  margin: 0 0 6px;
  font-size: 1.25rem;
}

.character-selector {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.char-choice {
  border: 1px solid rgba(189, 224, 214, 0.25);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 10px;
  color: var(--text);
  padding: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: border-color 160ms ease, transform 160ms ease;
}

.char-choice img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.char-choice span {
  font-size: 0.82rem;
  font-weight: 700;
}

.char-choice:hover { transform: translateY(-1px); }

.char-choice.selected {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px rgba(102, 243, 189, 0.4);
}

.toggle-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid rgba(194, 227, 216, 0.16);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
}

.toggle-item input {
  accent-color: var(--accent-2);
  transform: scale(1.15);
}

.status-line {
  margin-top: 8px;
  padding-top: 12px;
  border-top: 1px solid rgba(199, 228, 218, 0.16);
  color: var(--muted);
  font-size: 0.92rem;
  min-height: 2.6em;
}

.start-button {
  margin-top: auto;
  border: 0;
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  color: #112018;
  background: linear-gradient(120deg, var(--accent), #cfffa6);
  box-shadow: 0 8px 18px rgba(102, 243, 189, 0.24);
}

@keyframes bgPulse {
  from { transform: scale(1.01); opacity: 0.1; }
  to { transform: scale(1.03); opacity: 0.18; }
}

@keyframes riseIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 980px) {
  .lobby-card { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .character-selector { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 820px) and (orientation: portrait) {
  body {
    min-height: 100svh;
  }

  .top-screen {
    padding: 14px 10px calc(18px + env(safe-area-inset-bottom));
  }

  .subtitle {
    font-size: 0.7rem;
    letter-spacing: 0.14em;
  }

  .title {
    font-size: clamp(1.55rem, 9vw, 2.5rem);
    margin-top: 6px;
  }

  .lobby-card {
    margin-top: 12px;
    gap: 10px;
    grid-template-columns: 1fr;
  }

  .table-stage {
    border-radius: 14px;
    aspect-ratio: 4 / 3;
  }

  .settings-panel {
    border-radius: 14px;
    padding: 12px;
    gap: 9px;
  }

  .settings-panel h2 {
    font-size: 1.02rem;
    margin-bottom: 4px;
  }

  .character-selector {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 7px;
  }

  .char-choice {
    padding: 6px;
    gap: 6px;
  }

  .char-choice img {
    width: 26px;
    height: 26px;
  }

  .char-choice span {
    font-size: 0.76rem;
  }

  .toggle-item {
    padding: 8px 10px;
    gap: 8px;
    font-size: 0.9rem;
  }

  .status-line {
    margin-top: 2px;
    padding-top: 8px;
    font-size: 0.84rem;
    min-height: 2.3em;
  }

  .start-button {
    padding: 11px 12px;
    font-size: 0.92rem;
  }
}

@media (max-width: 960px) and (orientation: landscape) {
  body {
    min-height: 100svh;
  }

  .top-screen {
    max-width: none;
    padding: 10px 10px calc(10px + env(safe-area-inset-bottom));
  }

  .title-wrap {
    margin-bottom: 6px;
  }

  .subtitle {
    font-size: 0.66rem;
    letter-spacing: 0.12em;
  }

  .title {
    font-size: clamp(1.35rem, 4.2vw, 2rem);
    margin-top: 4px;
  }

  .lobby-card {
    margin-top: 8px;
    gap: 8px;
    grid-template-columns: minmax(0, 1.3fr) minmax(300px, 1fr);
    align-items: start;
  }

  .table-stage {
    border-radius: 14px;
    aspect-ratio: auto;
    height: min(60svh, 390px);
  }

  .settings-panel {
    border-radius: 14px;
    padding: 10px;
    gap: 8px;
    max-height: min(60svh, 390px);
    overflow-y: auto;
  }

  .settings-panel h2 {
    font-size: 0.98rem;
    margin-bottom: 2px;
  }

  .character-selector {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
  }

  .char-choice {
    padding: 5px;
    gap: 5px;
  }

  .char-choice img {
    width: 22px;
    height: 22px;
  }

  .char-choice span {
    font-size: 0.71rem;
  }

  .toggle-item {
    padding: 7px 9px;
    font-size: 0.84rem;
  }

  .status-line {
    font-size: 0.8rem;
    min-height: 2em;
  }

  .start-button {
    padding: 9px 10px;
    font-size: 0.86rem;
  }
}