* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  width: 100%;
  height: 100%;
  background: #0a0a14;
  color: #eee;
  font-family: 'Noto Sans JP', "Yu Gothic UI", "Meiryo", sans-serif;
  overflow: hidden;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

#app {
  position: relative;
  width: 100vw;
  height: 100vh;
  max-width: 540px;
  margin: 0 auto;
  background: linear-gradient(180deg, #1a1a2e 0%, #16162a 50%, #0f0f1c 100%);
  overflow: hidden;
}

.screen {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
}
.screen.active { display: flex; }

/* ===== タイトル ===== */
.title-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
}
.title-jp {
  font-size: 28px;
  letter-spacing: 0.4em;
  color: #ffcc55;
  text-shadow: 0 0 12px rgba(255, 200, 80, 0.6);
}
.title-main {
  font-size: 46px;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: #fff;
  margin: 8px 0 4px;
  text-shadow: 0 4px 0 #aa3322, 0 8px 24px rgba(0,0,0,0.6);
  white-space: nowrap;
}
.title-sub {
  font-size: 18px;
  color: #ffaa66;
  margin-bottom: 32px;
  letter-spacing: 0.1em;
}
.title-desc {
  font-size: 14px;
  line-height: 1.8;
  color: #ccc;
  margin-bottom: 40px;
}
.title-credit {
  margin-top: 32px;
  font-size: 11px;
  color: #777;
  letter-spacing: 0.2em;
}

.big-btn {
  display: block;
  width: 240px;
  padding: 16px 24px;
  margin: 10px auto;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(180deg, #ff7733, #cc4422);
  border: none;
  border-radius: 12px;
  box-shadow: 0 4px 0 #882211, 0 8px 16px rgba(0,0,0,0.4);
  cursor: pointer;
  font-family: inherit;
  letter-spacing: 0.1em;
  transition: transform 0.05s;
}
.big-btn:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 #882211;
}
.sub-btn {
  display: block;
  width: 180px;
  padding: 10px 20px;
  margin: 8px auto;
  font-size: 14px;
  color: #ccc;
  background: transparent;
  border: 1px solid #555;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
}
.sub-btn:hover { color: #fff; border-color: #888; }

/* ===== ヘルプ ===== */
.help-wrap {
  flex: 1;
  padding: 24px 20px;
  overflow-y: auto;
}
.help-wrap h2 {
  font-size: 22px;
  text-align: center;
  margin-bottom: 16px;
  color: #ffcc55;
}
.help-wrap h3 {
  font-size: 16px;
  margin: 20px 0 10px;
  color: #ffaa66;
  border-bottom: 1px solid #444;
  padding-bottom: 4px;
}
.help-list {
  font-size: 13px;
  line-height: 1.9;
  padding-left: 20px;
  color: #ccc;
}
.help-list b { color: #fff; }
.enemy-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-bottom: 16px;
}
.enemy-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  background: rgba(255,255,255,0.05);
  border-radius: 8px;
  border-left: 4px solid #ff7733;
}
.enemy-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #333;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
  overflow: hidden;
}
.enemy-card-icon img { width: 100%; height: 100%; object-fit: cover; }
.enemy-card-body { flex: 1; font-size: 12px; }
.enemy-card-name { font-weight: 700; color: #fff; margin-bottom: 2px; }
.enemy-card-desc { color: #aaa; line-height: 1.5; }
.enemy-card-tags { margin-top: 3px; }
.tag {
  display: inline-block;
  font-size: 10px;
  padding: 1px 6px;
  margin-right: 4px;
  border-radius: 4px;
  background: #444;
  color: #fff;
}
.tag.danger { background: #cc3322; }
.tag.range { background: #336699; }

/* ===== ゲーム ===== */
.hud {
  flex-shrink: 0;
  padding: 8px 12px;
  background: rgba(0,0,0,0.4);
  border-bottom: 2px solid #333;
}
.hud-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}
.station-label, .progress-label {
  font-size: 10px;
  color: #999;
  letter-spacing: 0.1em;
}
.station-name {
  font-size: 22px;
  font-weight: 700;
  color: #ffcc55;
}
.progress-num {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
}
.progress-info { text-align: right; }

.gauge-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}
.gauge-label {
  font-size: 11px;
  color: #ff8866;
  letter-spacing: 0.05em;
  width: 48px;
}
.gauge-track {
  flex: 1;
  height: 14px;
  background: #222;
  border-radius: 7px;
  overflow: hidden;
  border: 1px solid #444;
}
.gauge-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #44cc66, #ffcc33 50%, #cc3322);
  transition: width 0.1s linear;
}
.gauge-num {
  font-size: 12px;
  width: 38px;
  text-align: right;
  font-weight: 700;
  color: #fff;
}
.status-row {
  display: flex;
  gap: 16px;
  font-size: 11px;
  color: #aaa;
}
.status-item span { color: #fff; font-weight: 700; }

/* 電車 */
.train-wrap {
  flex: 1;
  position: relative;
  padding: 12px;
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, #2a2a3a 0%, #1a1a26 100%);
}
.train-roof {
  text-align: center;
  font-size: 10px;
  color: #666;
  letter-spacing: 0.2em;
  margin-bottom: 4px;
}
.train-doors {
  display: flex;
  justify-content: space-between;
  padding: 0 8px;
  margin-bottom: 8px;
}
.door {
  font-size: 14px;
  color: #555;
  opacity: 0;
  transition: opacity 0.3s;
}
.door.active { opacity: 1; color: #ffaa44; animation: doorBlink 0.5s infinite; }
@keyframes doorBlink { 50% { opacity: 0.3; } }

.seats {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin: 12px 0;
  padding: 8px 4px;
  background: linear-gradient(180deg, #4a3a2a, #3a2a1a);
  border-radius: 8px;
  border: 2px solid #553311;
  box-shadow: inset 0 4px 8px rgba(0,0,0,0.4);
}
.seat {
  position: relative;
  aspect-ratio: 1/1.4;
  background: linear-gradient(180deg, #6a4a2a, #4a3220);
  border-radius: 6px 6px 4px 4px;
  border: 1px solid #2a1a0a;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: 2px;
  transition: transform 0.1s, box-shadow 0.1s;
}
.seat::before {
  /* 背もたれ */
  content: '';
  position: absolute;
  top: 0;
  left: 8%;
  right: 8%;
  height: 35%;
  background: linear-gradient(180deg, #5a3a22, #4a3020);
  border-radius: 4px 4px 0 0;
  border-bottom: 2px solid #2a1a0a;
}
.seat.selectable:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(255, 200, 80, 0.4);
  border-color: #ffcc55;
}
.seat.selectable {
  background: linear-gradient(180deg, #7a5a3a, #5a4030);
  animation: pulse 1s infinite;
}
@keyframes pulse {
  50% { box-shadow: 0 0 8px rgba(255, 200, 80, 0.5); }
}
.seat.player-seat {
  background: linear-gradient(180deg, #336699, #224477);
  border-color: #66ccff;
  box-shadow: 0 0 12px rgba(102, 204, 255, 0.4);
}
.seat .occupant {
  position: relative;
  z-index: 2;
  width: 84%;
  height: 78%;
  background: #888;
  border-radius: 50% 50% 28% 28%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  overflow: hidden;
  border: 2px solid rgba(0,0,0,0.4);
  text-shadow: 0 1px 2px rgba(0,0,0,0.4);
}
.seat .occupant-name {
  position: absolute;
  bottom: -16px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 8px;
  white-space: nowrap;
  color: #fff;
  background: rgba(0,0,0,0.7);
  padding: 1px 4px;
  border-radius: 3px;
  pointer-events: none;
  z-index: 4;
}
.seat .occupant img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}
.seat .occupant.aura-1 { box-shadow: 0 0 8px #ffaa44, 0 0 16px #ffaa44; }
.seat .occupant.aura-2 { box-shadow: 0 0 10px #ff6644, 0 0 20px #ff6644; }
.seat .occupant.aura-3 { box-shadow: 0 0 12px #ff3322, 0 0 24px #ff3322, 0 0 36px #ff3322; }
.seat .seat-num {
  position: absolute;
  top: 2px;
  left: 4px;
  font-size: 9px;
  color: #ffcc55;
  z-index: 3;
  background: rgba(0,0,0,0.5);
  padding: 0 3px;
  border-radius: 2px;
}
.seat.player-seat .seat-num { color: #66ccff; }

.aura-text {
  position: absolute;
  bottom: -14px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 9px;
  white-space: nowrap;
  color: #ff6644;
  font-weight: 700;
  text-shadow: 0 0 4px rgba(0,0,0,0.8);
  animation: floatUp 1.5s infinite;
  pointer-events: none;
}
@keyframes floatUp {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(-20px); }
}

.floor {
  text-align: center;
  font-size: 10px;
  color: #555;
  letter-spacing: -0.1em;
  margin-top: 8px;
}
.announce {
  margin-top: 12px;
  padding: 6px 10px;
  background: rgba(0,0,0,0.5);
  border-left: 3px solid #ffcc55;
  font-size: 11px;
  color: #ccc;
  border-radius: 0 4px 4px 0;
  font-family: monospace;
  min-height: 28px;
}

/* アクションバー */
.action-bar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: rgba(0,0,0,0.5);
  border-top: 2px solid #333;
}
.action-btn {
  padding: 8px 14px;
  background: linear-gradient(180deg, #cc7733, #884422);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  box-shadow: 0 3px 0 #552211;
  line-height: 1.2;
}
.action-btn:active { transform: translateY(2px); box-shadow: 0 1px 0 #552211; }
.action-btn:disabled {
  background: #444; color: #777; box-shadow: 0 3px 0 #222; cursor: not-allowed;
}
.action-btn small { font-size: 9px; color: #ffddaa; font-weight: 400; }

.timer-wrap { flex: 1; }
.timer-label {
  font-size: 10px;
  color: #999;
  margin-bottom: 2px;
  letter-spacing: 0.05em;
}
.timer-track {
  height: 8px;
  background: #222;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid #444;
}
.timer-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #66ccff, #3399cc);
  transition: width 0.1s linear;
}
.timer-fill.boarding {
  background: linear-gradient(90deg, #ffcc55, #cc8833);
}

/* 演出 */
.damage-flash {
  position: absolute; inset: 0;
  background: radial-gradient(circle, transparent 30%, rgba(255,0,0,0.4) 100%);
  pointer-events: none;
  opacity: 0;
}
.damage-flash.show { animation: flashRed 0.3s; }
@keyframes flashRed {
  0% { opacity: 0; }
  50% { opacity: 1; }
  100% { opacity: 0; }
}

.shake { animation: shake 0.3s; }
@keyframes shake {
  0%,100% { transform: translateX(0); }
  20% { transform: translateX(-4px); }
  40% { transform: translateX(4px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

/* リザルト */
.result-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
}
.result-title {
  font-size: 48px;
  font-weight: 900;
  color: #ff5544;
  margin-bottom: 8px;
  text-shadow: 0 4px 12px rgba(255,80,60,0.5);
}
.result-title.win {
  color: #66ddaa;
  text-shadow: 0 4px 12px rgba(102,221,170,0.5);
}
.result-sub {
  font-size: 16px;
  color: #ccc;
  margin-bottom: 24px;
  line-height: 1.6;
}
.result-score {
  margin: 20px 0;
  padding: 16px 24px;
  background: rgba(255,255,255,0.05);
  border: 1px solid #444;
  border-radius: 12px;
  min-width: 240px;
}
.result-score-label {
  font-size: 12px;
  color: #999;
  letter-spacing: 0.2em;
}
.result-score-num {
  font-size: 48px;
  font-weight: 900;
  color: #ffcc55;
}
.result-detail {
  font-size: 12px;
  color: #aaa;
  margin: 8px 0 24px;
  line-height: 1.8;
}

/* 通知 */
.toast {
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0,0,0,0.85);
  border: 2px solid #ffcc55;
  padding: 16px 28px;
  border-radius: 12px;
  font-size: 18px;
  font-weight: 700;
  color: #ffcc55;
  z-index: 100;
  pointer-events: none;
  opacity: 0;
  text-shadow: 0 2px 4px rgba(0,0,0,0.8);
}
.toast.show {
  animation: toastShow 1.4s;
}
@keyframes toastShow {
  0% { opacity: 0; transform: translate(-50%, -70%) scale(0.8); }
  20% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
  30% { transform: translate(-50%, -50%) scale(1); }
  80% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -40%) scale(0.95); }
}