.tower-shell {
  min-height: 100vh;
}

.tower-layout {
  display: grid;
  grid-template-columns: minmax(280px, 320px) minmax(0, 1fr);
  gap: 16px;
  align-items: stretch;
}

.lobby-panel,
.stage-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(17, 23, 34, 0.88);
  box-shadow: var(--shadow);
}

.lobby-panel {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 16px;
}

.connection-row,
.room-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-size: 0.88rem;
}

.connection-dot {
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 18px rgba(255, 200, 87, 0.55);
}

.connection-dot.online {
  background: var(--lime);
  box-shadow: 0 0 18px rgba(184, 255, 92, 0.55);
}

.connection-dot.error {
  background: var(--danger);
  box-shadow: 0 0 18px rgba(255, 102, 117, 0.55);
}

.field-label {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
}

input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  background: #090d15;
  color: var(--text);
  outline: none;
}

input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(39, 225, 242, 0.12);
}

.button-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

button {
  min-height: 44px;
  border: 1px solid rgba(39, 225, 242, 0.25);
  border-radius: 8px;
  background: #142130;
  color: var(--text);
  cursor: pointer;
  font-weight: 900;
}

button:hover:not(:disabled) {
  border-color: var(--cyan);
  background: #193044;
}

button:disabled {
  color: #687489;
  cursor: not-allowed;
  opacity: 0.7;
}

.room-strip {
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0d121b;
}

.room-strip strong {
  color: var(--cyan);
  letter-spacing: 0;
}

.lobby-roster {
  display: grid;
  gap: 8px;
  min-height: 92px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.lobby-roster li {
  display: grid;
  grid-template-columns: 18px 1fr auto;
  gap: 10px;
  align-items: center;
  min-height: 38px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 0.86rem;
}

.lobby-roster li.you {
  border-color: rgba(39, 225, 242, 0.45);
  background: rgba(39, 225, 242, 0.05);
}

.lobby-roster .roster-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--muted);
}

.lobby-roster .roster-name {
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lobby-roster .roster-name small {
  display: block;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.72rem;
}

.lobby-roster .roster-ready {
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.lobby-roster li.is-ready .roster-ready {
  color: var(--lime);
}

.status-text {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.65;
}

.stage-panel {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 12px;
  padding: 16px;
  background: #070b12;
}

.character-picker {
  display: grid;
  gap: 10px;
}

.picker-header {
  display: grid;
  gap: 4px;
}

.picker-header h2 {
  margin: 0;
  font-size: clamp(1.2rem, 2.8vw, 1.55rem);
}

.class-blurb {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.class-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(108px, 1fr));
  gap: 8px;
}

.class-card {
  display: grid;
  grid-template-rows: 64px auto;
  gap: 6px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0d121b;
  color: var(--text);
  cursor: pointer;
  text-align: center;
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

.class-card:hover {
  transform: translateY(-2px);
  border-color: rgba(39, 225, 242, 0.5);
}

.class-card.selected {
  border-color: var(--cyan);
  background: rgba(39, 225, 242, 0.08);
  box-shadow: 0 0 0 1px var(--cyan) inset;
}

.class-card .class-icon {
  display: grid;
  place-items: center;
  height: 100%;
  border-radius: 6px;
  background: #060a12;
}

.class-card .class-name {
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.02em;
}

.class-card .class-tag {
  font-size: 0.66rem;
  font-weight: 700;
  color: var(--muted);
}

.class-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin: 0;
}

.class-stats > div {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0d121b;
}

.class-stats dt {
  margin: 0;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 800;
}

.class-stats dd {
  margin: 4px 0 0;
  font-size: 0.95rem;
  font-weight: 900;
}

.stage-frame {
  position: relative;
  min-height: min(46vh, 460px);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #060a12;
}

.stage-canvas,
.stage-canvas canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* ── パラメータパネル ─────────────────────────────────────────────── */
#paramOverlay {
  position: fixed; inset: 0; z-index: 9000;
  background: rgba(6,10,18,0.88);
  display: flex; align-items: center; justify-content: center;
}
.param-panel {
  background: #111827; border: 1px solid var(--line);
  border-radius: 12px; padding: 24px 28px;
  min-width: 340px; max-width: 500px; width: 90vw;
  color: var(--fg);
}
.param-panel h2 { margin: 0 0 8px; font-size: 1.1rem; color: var(--accent); }
.param-panel p  { margin: 0 0 14px; font-size: 0.85rem; color: var(--muted); }
.param-row {
  display: grid; grid-template-columns: 90px 28px 1fr 28px 24px;
  align-items: center; gap: 6px; margin-bottom: 8px;
}
.param-label { font-size: 0.8rem; font-weight: 700; color: var(--muted); }
.param-dots  { font-size: 0.9rem; letter-spacing: 2px; color: var(--accent); text-align: center; }
.param-val   { font-size: 0.85rem; font-weight: 900; text-align: right; }
.param-btn   {
  background: rgba(255,255,255,0.06); border: 1px solid var(--line);
  color: var(--fg); border-radius: 4px; width: 28px; height: 28px;
  cursor: pointer; font-size: 1rem; line-height: 1;
}
.param-btn:disabled { opacity: 0.25; cursor: default; }
.param-match {
  margin: 12px 0 8px; font-size: 0.8rem; color: var(--accent);
  min-height: 20px; font-weight: 700;
}
.param-actions { display: flex; gap: 10px; margin-top: 16px; justify-content: flex-end; }
.param-actions button {
  padding: 8px 18px; border-radius: 6px; border: 1px solid var(--line);
  background: rgba(255,255,255,0.06); color: var(--fg); cursor: pointer; font-size: 0.85rem;
}
.param-actions button.primary {
  background: var(--accent); color: #0c121b; border-color: var(--accent); font-weight: 700;
}
/* 職業選択カード */
.class-cards-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 14px; }
.class-select-card {
  flex: 1; min-width: 120px; max-width: 180px;
  border: 2px solid var(--line); border-radius: 10px; padding: 14px 10px;
  background: rgba(255,255,255,0.04); cursor: pointer; text-align: center;
  transition: border-color 0.15s, background 0.15s;
}
.class-select-card:hover { border-color: var(--accent); background: rgba(39,225,242,0.08); }
.card-color-dot {
  width: 28px; height: 28px; border-radius: 50%; margin: 0 auto 8px;
  border: 2px solid rgba(255,255,255,0.2);
}
.card-name { font-size: 0.95rem; font-weight: 800; margin-bottom: 4px; color: var(--fg); }
.card-role { font-size: 0.7rem; color: var(--muted); margin-bottom: 6px; font-weight: 700; }
.card-blurb { font-size: 0.7rem; color: var(--muted); line-height: 1.4; }
/* Ready ボタンの強調スタイル */
#readyButton.needs-params { background: #f59e0b; color: #0c121b; border-color: #f59e0b; animation: pulse-params 1.4s ease-in-out infinite; }
@keyframes pulse-params { 0%,100%{opacity:1} 50%{opacity:0.75} }

.stage-overlay {
  position: absolute;
  inset: auto 16px 16px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(7, 11, 18, 0.78);
  backdrop-filter: blur(10px);
  pointer-events: none;
}

.stage-overlay strong {
  color: var(--lime);
}

.stage-overlay span {
  color: var(--muted);
}

@media (max-width: 880px) {
  .tower-layout {
    grid-template-columns: 1fr;
  }

  .stage-frame {
    min-height: 56vh;
  }
}

@media (max-width: 520px) {
  .class-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .stage-overlay {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* ── How-to-play ──────────────────────────────────────── */
.how-to-play {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}
.how-to-play .eyebrow {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 6px;
}
.how-to-play ul {
  margin: 0;
  padding: 0 0 0 16px;
  list-style: disc;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.8;
}

/* ── Game canvas full-height during battle ───────────── */
.stage-frame.game-active {
  min-height: min(72vh, 640px);
}
.stage-frame.game-active .stage-overlay {
  display: none;
}

/* ── Skill slot hover glow ───────────────────────────── */
.skill-active {
  box-shadow: 0 0 12px rgba(39, 225, 242, 0.6);
}