/* ============================================
   BATTLE ARENA - CSS
   Dark arcade aesthetic
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Noto+Sans+JP:wght@400;700&display=swap');

:root {
  --p1-color: #00d4ff;
  --p2-color: #ff4466;
  --gold: #ffd700;
  --bg-dark: #0a0a0f;
  --bg-card: #12121a;
  --bg-card2: #1a1a28;
  --border: #2a2a40;
  --text: #e0e0f0;
  --text-dim: #6060a0;
  --accent: #7c3aed;
  --hp-green: #22c55e;
  --hp-yellow: #eab308;
  --hp-red: #ef4444;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--bg-dark);
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--text);
  touch-action: none;
}

#app { width: 100%; height: 100%; position: relative; }

/* ============ 縦画面警告 ============ */
#portrait-warning {
  display: none;
  position: fixed; inset: 0; z-index: 9999;
  background: #0a0a0f;
  flex-direction: column;
  align-items: center; justify-content: center;
  gap: 20px;
  text-align: center;
}
#portrait-warning .rotate-icon {
  font-size: 64px;
  animation: rotateAnim 1.5s ease-in-out infinite;
}
@keyframes rotateAnim {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(90deg); }
}
#portrait-warning p {
  font-size: 18px; color: var(--text);
  font-family: 'Noto Sans JP', sans-serif;
}

@media (orientation: portrait) {
  #portrait-warning { display: flex; }
  #app { display: none; }
}

/* ============ SCREENS ============ */
.screen {
  position: absolute; inset: 0;
  display: none; flex-direction: column;
  align-items: center; justify-content: center;
  overflow: hidden;
}
.screen.active { display: flex; }

/* ============ TITLE SCREEN ============ */
#screen-title {
  background: radial-gradient(ellipse at center, #1a0a2e 0%, #0a0a0f 70%);
}

.title-bg {
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 40px, rgba(124,58,237,0.05) 40px, rgba(124,58,237,0.05) 41px),
    repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(124,58,237,0.05) 40px, rgba(124,58,237,0.05) 41px);
  animation: bgScroll 20s linear infinite;
}
@keyframes bgScroll {
  to { transform: translateY(40px); }
}

.title-content {
  position: relative; z-index: 1;
  display: flex; flex-direction: column;
  align-items: center; gap: 24px;
}

.title-logo {
  display: flex; flex-direction: column;
  align-items: center; line-height: 1;
}
.title-main {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(36px, 10vw, 80px);
  font-weight: 900;
  color: #fff;
  text-shadow:
    0 0 20px var(--p1-color),
    0 0 60px var(--p1-color),
    0 0 120px rgba(0,212,255,0.4);
  letter-spacing: 0.1em;
  animation: titlePulse 3s ease-in-out infinite;
}
@keyframes titlePulse {
  0%, 100% { text-shadow: 0 0 20px var(--p1-color), 0 0 60px var(--p1-color); }
  50% { text-shadow: 0 0 30px var(--p1-color), 0 0 80px var(--p1-color), 0 0 140px rgba(0,212,255,0.6); }
}
.title-sub {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(14px, 4vw, 32px);
  font-weight: 400;
  color: var(--gold);
  letter-spacing: 0.6em;
  text-shadow: 0 0 20px var(--gold);
  margin-top: -4px;
}

.title-menu {
  display: flex; flex-direction: row;
  gap: 12px; width: min(500px, 90vw);
}

.title-version {
  font-family: 'Orbitron', sans-serif;
  font-size: 11px; color: var(--text-dim);
  letter-spacing: 0.2em;
}

/* ============ BUTTONS ============ */
.menu-btn {
  flex: 1;
  padding: 14px 16px;
  background: rgba(124,58,237,0.15);
  border: 1px solid var(--accent);
  border-radius: 4px;
  color: var(--text);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  letter-spacing: 0.05em;
}
.menu-btn:active {
  background: rgba(124,58,237,0.4);
  transform: scale(0.97);
}
.btn-icon { font-size: 18px; }

.start-btn {
  padding: 14px 28px;
  background: linear-gradient(135deg, var(--accent), #9333ea);
  border: none; border-radius: 4px;
  color: #fff;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 16px; font-weight: 700;
  cursor: pointer;
  box-shadow: 0 0 20px rgba(124,58,237,0.5);
  transition: all 0.15s;
  margin-top: 12px;
}
.start-btn:active { transform: scale(0.97); }

.back-btn {
  background: none; border: none;
  color: var(--text-dim); font-size: 14px;
  cursor: pointer; padding: 8px;
}

/* ============ SCREEN HEADER ============ */
.screen-header {
  position: absolute; top: 0; left: 0; right: 0;
  padding: 8px 16px;
  display: flex; align-items: center; gap: 16px;
  background: rgba(0,0,0,0.5);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}
.screen-header h2 {
  font-family: 'Orbitron', sans-serif;
  font-size: 14px; font-weight: 700;
  color: var(--gold); letter-spacing: 0.1em;
}

/* ============ MODE SELECT ============ */
#screen-mode {
  background: radial-gradient(ellipse at center, #1a0a2e 0%, #0a0a0f 70%);
  gap: 20px; padding-top: 50px;
}

.mode-cards {
  display: flex; gap: 20px;
  flex-wrap: nowrap; justify-content: center;
  padding: 20px;
}

.mode-card {
  width: min(180px, 30vw);
  padding: 20px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  text-align: center; cursor: pointer;
  transition: all 0.15s;
}
.mode-card:active {
  border-color: var(--accent);
  background: var(--bg-card2);
  transform: scale(0.97);
}
.mode-icon { font-size: 40px; margin-bottom: 10px; }
.mode-name { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.mode-desc { font-size: 11px; color: var(--text-dim); }

/* ============ CHARACTER SELECT ============ */
#screen-character {
  background: var(--bg-dark);
  padding-top: 48px;
  justify-content: flex-start;
  overflow-y: auto;
}

.char-select-area {
  display: flex; align-items: center; justify-content: center;
  gap: 16px; padding: 12px 20px;
  width: 100%;
}

.player-select {
  display: flex; flex-direction: column;
  align-items: center; gap: 6px;
}

.player-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 12px; font-weight: 700;
  padding: 3px 12px; border-radius: 2px;
}
.p1-label { background: var(--p1-color); color: #000; }
.p2-label { background: var(--p2-color); color: #fff; }

.selected-char {
  width: min(80px, 18vw); height: min(80px, 18vw);
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 36px;
}
.selected-char.p1-selected { border-color: var(--p1-color); }
.selected-char.p2-selected { border-color: var(--p2-color); }

.vs-text {
  font-family: 'Orbitron', sans-serif;
  font-size: 22px; font-weight: 900;
  color: var(--gold);
  text-shadow: 0 0 20px var(--gold);
}

.char-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px; padding: 0 12px;
  width: 100%; max-width: 480px;
}

.char-card {
  aspect-ratio: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.1s;
  padding: 4px;
}
.char-card:active { transform: scale(0.93); }
.char-card.p1-selected { border-color: var(--p1-color); box-shadow: 0 0 8px rgba(0,212,255,0.4); }
.char-card.p2-selected { border-color: var(--p2-color); box-shadow: 0 0 8px rgba(255,68,102,0.4); }

.char-card-icon { font-size: clamp(18px, 5vw, 28px); }
.char-card-name { font-size: 8px; color: var(--text-dim); margin-top: 2px; text-align: center; }

.char-select-footer {
  display: flex; flex-direction: column;
  align-items: center; gap: 8px;
  padding: 8px;
}
.selecting-indicator {
  font-size: 12px; color: var(--text-dim);
}

/* ============ STAGE SELECT ============ */
#screen-stage {
  background: var(--bg-dark);
  padding-top: 48px;
  justify-content: flex-start;
  overflow-y: auto;
}

.stage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px; padding: 16px;
  width: 100%; max-width: 600px;
}

.stage-card {
  aspect-ratio: 16/9;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid var(--border);
  cursor: pointer; transition: all 0.1s;
  position: relative;
  display: flex; align-items: flex-end;
}
.stage-card.selected { border-color: var(--gold); box-shadow: 0 0 12px rgba(255,215,0,0.4); }
.stage-card:active { transform: scale(0.96); }
.stage-preview { position: absolute; inset: 0; }
.stage-name {
  position: relative; z-index: 1;
  width: 100%; padding: 4px 6px;
  background: rgba(0,0,0,0.7);
  font-size: 11px; font-weight: 700;
}

/* ============ SETTINGS SCREEN ============ */
#screen-settings {
  background: radial-gradient(ellipse at center, #1a0a2e 0%, #0a0a0f 70%);
  gap: 20px;
  padding-top: 48px;
}

.settings-content {
  display: flex; flex-direction: column;
  gap: 16px; padding: 20px;
  width: min(400px, 90vw);
}

.settings-item {
  display: flex; flex-direction: column; gap: 6px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.settings-label {
  font-size: 13px; color: var(--text-dim);
}

.settings-value {
  font-family: 'Orbitron', sans-serif;
  font-size: 15px; color: var(--text);
}

/* ============ BATTLE HUD ============ */
.battle-hud {
  position: absolute; top: 0; left: 0; right: 0;
  height: 56px; z-index: 10;
  display: flex; align-items: center;
  padding: 6px 10px; gap: 6px;
  background: rgba(0,0,0,0.85);
  border-bottom: 1px solid var(--border);
}

.hud-player {
  flex: 1; display: flex; flex-direction: column; gap: 3px;
}
.p2-hud { align-items: flex-end; }

.hud-name {
  font-family: 'Orbitron', sans-serif;
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.05em;
}
.p1-hud .hud-name { color: var(--p1-color); }
.p2-hud .hud-name { color: var(--p2-color); }

.hp-bar-wrap {
  width: 100%; height: 10px;
  background: #1a1a1a; border-radius: 2px; overflow: hidden;
  border: 1px solid #333;
}
.hp-bar {
  height: 100%; border-radius: 2px;
  transition: width 0.2s ease-out;
}
.p1-hp { background: linear-gradient(90deg, var(--hp-green), #16a34a); }
.p2-hp { background: linear-gradient(270deg, var(--hp-green), #16a34a); float: right; }

.hud-hp-text { font-size: 10px; color: var(--text-dim); }

.hud-center {
  display: flex; flex-direction: column;
  align-items: center; gap: 1px;
  min-width: 56px;
}

.round-timer {
  font-family: 'Orbitron', sans-serif;
  font-size: 24px; font-weight: 900;
  color: #fff; line-height: 1;
}
.round-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 8px; color: var(--text-dim);
  letter-spacing: 0.1em;
}

/* ============ CANVAS ============ */
#game-canvas {
  position: absolute; top: 56px; left: 0; right: 0;
  width: 100%;
}

/* ============ CONTROLS ============ */
.controls {
  position: absolute; bottom: 0;
  display: flex; align-items: center;
  padding: 8px 10px; gap: 8px; z-index: 10;
  height: 110px;
}
.p1-controls { left: 0; flex-direction: row; }
.p2-controls { right: 0; flex-direction: row-reverse; }

.stick-area {
  width: 90px; height: 90px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.stick-base {
  width: 80px; height: 80px;
  background: rgba(255,255,255,0.05);
  border: 2px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  position: relative;
  display: flex; align-items: center; justify-content: center;
}

.stick-knob {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.25);
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 50%;
  position: absolute;
  pointer-events: none;
  transition: transform 0.05s;
}

/* 攻撃ボタン：縦に3つ並べる */
.action-btns {
  display: flex; flex-direction: column;
  gap: 6px; align-items: center;
}

.action-btn {
  border: none; border-radius: 50%;
  font-size: 11px; font-weight: 700;
  cursor: pointer; color: #fff;
  display: flex; align-items: center; justify-content: center;
  -webkit-user-select: none; user-select: none;
  transition: transform 0.08s;
}
.action-btn:active { transform: scale(0.85); }

.btn-normal {
  width: 54px; height: 54px;
  background: rgba(0,212,255,0.25);
  border: 2px solid var(--p1-color);
  box-shadow: 0 0 10px rgba(0,212,255,0.3);
  font-size: 13px;
}
.btn-mid {
  width: 44px; height: 44px;
  background: rgba(255,215,0,0.2);
  border: 2px solid var(--gold);
  box-shadow: 0 0 8px rgba(255,215,0,0.25);
  font-size: 11px;
}
.btn-special {
  width: 38px; height: 38px;
  background: rgba(255,68,102,0.25);
  border: 2px solid var(--p2-color);
  box-shadow: 0 0 8px rgba(255,68,102,0.25);
  font-size: 10px;
}

.p2-controls .btn-normal {
  border-color: var(--p2-color);
  background: rgba(255,68,102,0.25);
  box-shadow: 0 0 10px rgba(255,68,102,0.3);
}
.p2-controls .btn-mid {
  border-color: var(--gold);
}
.p2-controls .btn-special {
  border-color: var(--p1-color);
  background: rgba(0,212,255,0.25);
}

/* ============ PAUSE ============ */
.pause-btn {
  position: absolute; top: 60px; right: 8px;
  background: rgba(0,0,0,0.5);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-dim); font-size: 16px;
  padding: 4px 8px; cursor: pointer; z-index: 10;
}

.overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.85);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}

.pause-menu {
  display: flex; flex-direction: column;
  align-items: center; gap: 14px;
  padding: 28px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px; min-width: 220px;
}

.pause-menu h2 {
  font-family: 'Orbitron', sans-serif;
  font-size: 22px; color: var(--gold);
}

/* ============ RESULT SCREEN ============ */
#screen-result {
  background: radial-gradient(ellipse at center, #1a0a2e 0%, #0a0a0f 70%);
}

.result-content {
  display: flex; flex-direction: column;
  align-items: center; gap: 20px;
}

.result-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(32px, 10vw, 64px);
  font-weight: 900; color: var(--gold);
  text-shadow: 0 0 30px var(--gold);
  animation: resultPop 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes resultPop {
  from { transform: scale(0); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.result-char { font-size: 72px; }
.result-name {
  font-family: 'Orbitron', sans-serif;
  font-size: 18px; font-weight: 700;
  color: #fff;
}

.result-btns {
  display: flex; flex-direction: row;
  gap: 12px;
}
.result-btns .menu-btn {
  flex: none;
  padding: 12px 20px;
  font-size: 13px;
}

/* ============ EFFECTS ============ */
.hit-effect {
  position: absolute;
  font-size: 22px; font-weight: 900;
  font-family: 'Orbitron', sans-serif;
  pointer-events: none;
  animation: hitFloat 0.6s ease-out forwards;
  z-index: 20;
  text-shadow: 0 2px 4px rgba(0,0,0,0.8);
}
@keyframes hitFloat {
  from { transform: translateY(0) scale(1.2); opacity: 1; }
  to { transform: translateY(-40px) scale(0.8); opacity: 0; }
}


:root {
  --p1-color: #00d4ff;
  --p2-color: #ff4466;
  --gold: #ffd700;
  --bg-dark: #0a0a0f;
  --bg-card: #12121a;
  --bg-card2: #1a1a28;
  --border: #2a2a40;
  --text: #e0e0f0;
  --text-dim: #6060a0;
  --accent: #7c3aed;
  --hp-green: #22c55e;
  --hp-yellow: #eab308;
  --hp-red: #ef4444;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--bg-dark);
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--text);
  touch-action: none;
}

#app { width: 100%; height: 100%; position: relative; }

/* ============ SCREENS ============ */
.screen {
  position: absolute; inset: 0;
  display: none; flex-direction: column;
  align-items: center; justify-content: center;
  overflow: hidden;
}
.screen.active { display: flex; }

/* ============ TITLE SCREEN ============ */
#screen-title {
  background: radial-gradient(ellipse at center, #1a0a2e 0%, #0a0a0f 70%);
}

.title-bg {
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 40px, rgba(124,58,237,0.05) 40px, rgba(124,58,237,0.05) 41px),
    repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(124,58,237,0.05) 40px, rgba(124,58,237,0.05) 41px);
  animation: bgScroll 20s linear infinite;
}
@keyframes bgScroll {
  to { transform: translateY(40px); }
}

.title-content {
  position: relative; z-index: 1;
  display: flex; flex-direction: column;
  align-items: center; gap: 40px;
}

.title-logo {
  display: flex; flex-direction: column;
  align-items: center; line-height: 1;
}
.title-main {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(48px, 15vw, 96px);
  font-weight: 900;
  color: #fff;
  text-shadow:
    0 0 20px var(--p1-color),
    0 0 60px var(--p1-color),
    0 0 120px rgba(0,212,255,0.4);
  letter-spacing: 0.1em;
  animation: titlePulse 3s ease-in-out infinite;
}
@keyframes titlePulse {
  0%, 100% { text-shadow: 0 0 20px var(--p1-color), 0 0 60px var(--p1-color); }
  50% { text-shadow: 0 0 30px var(--p1-color), 0 0 80px var(--p1-color), 0 0 140px rgba(0,212,255,0.6); }
}
.title-sub {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(20px, 6vw, 40px);
  font-weight: 400;
  color: var(--gold);
  letter-spacing: 0.6em;
  text-shadow: 0 0 20px var(--gold);
  margin-top: -8px;
}

.title-menu {
  display: flex; flex-direction: column;
  gap: 16px; width: min(320px, 90vw);
}

.title-version {
  font-family: 'Orbitron', sans-serif;
  font-size: 11px; color: var(--text-dim);
  letter-spacing: 0.2em;
}

/* ============ BUTTONS ============ */
.menu-btn {
  width: 100%;
  padding: 16px 24px;
  background: rgba(124,58,237,0.15);
  border: 1px solid var(--accent);
  border-radius: 4px;
  color: var(--text);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  letter-spacing: 0.05em;
}
.menu-btn:active {
  background: rgba(124,58,237,0.4);
  transform: scale(0.97);
}
.btn-icon { font-size: 20px; }

.start-btn {
  padding: 16px 32px;
  background: linear-gradient(135deg, var(--accent), #9333ea);
  border: none; border-radius: 4px;
  color: #fff;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 18px; font-weight: 700;
  cursor: pointer;
  box-shadow: 0 0 20px rgba(124,58,237,0.5);
  transition: all 0.15s;
  margin-top: 16px;
}
.start-btn:active { transform: scale(0.97); }

.back-btn {
  background: none; border: none;
  color: var(--text-dim); font-size: 14px;
  cursor: pointer; padding: 8px;
}

/* ============ SCREEN HEADER ============ */
.screen-header {
  position: absolute; top: 0; left: 0; right: 0;
  padding: 12px 16px;
  display: flex; align-items: center; gap: 16px;
  background: rgba(0,0,0,0.5);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}
.screen-header h2 {
  font-family: 'Orbitron', sans-serif;
  font-size: 16px; font-weight: 700;
  color: var(--gold); letter-spacing: 0.1em;
}

/* ============ MODE SELECT ============ */
#screen-mode { gap: 24px; padding-top: 60px; }

.mode-cards {
  display: flex; gap: 20px;
  flex-wrap: wrap; justify-content: center;
  padding: 20px;
}

.mode-card {
  width: min(180px, 42vw);
  padding: 24px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  text-align: center; cursor: pointer;
  transition: all 0.15s;
}
.mode-card:active {
  border-color: var(--accent);
  background: var(--bg-card2);
  transform: scale(0.97);
}
.mode-icon { font-size: 48px; margin-bottom: 12px; }
.mode-name { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.mode-desc { font-size: 12px; color: var(--text-dim); }

/* ============ CHARACTER SELECT ============ */
#screen-character {
  padding-top: 60px;
  justify-content: flex-start;
  overflow-y: auto;
}

.char-select-area {
  display: flex; align-items: center; justify-content: center;
  gap: 24px; padding: 20px;
  width: 100%;
}

.player-select {
  display: flex; flex-direction: column;
  align-items: center; gap: 8px;
}

.player-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 14px; font-weight: 700;
  padding: 4px 16px; border-radius: 2px;
}
.p1-label { background: var(--p1-color); color: #000; }
.p2-label { background: var(--p2-color); color: #fff; }

.selected-char {
  width: min(120px, 28vw); height: min(120px, 28vw);
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 48px;
}
.selected-char.p1-selected { border-color: var(--p1-color); }
.selected-char.p2-selected { border-color: var(--p2-color); }

.vs-text {
  font-family: 'Orbitron', sans-serif;
  font-size: 28px; font-weight: 900;
  color: var(--gold);
  text-shadow: 0 0 20px var(--gold);
}

.char-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px; padding: 0 12px;
  width: 100%; max-width: 500px;
}

.char-card {
  aspect-ratio: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.1s;
  padding: 4px;
}
.char-card:active { transform: scale(0.93); }
.char-card.p1-selected { border-color: var(--p1-color); box-shadow: 0 0 8px rgba(0,212,255,0.4); }
.char-card.p2-selected { border-color: var(--p2-color); box-shadow: 0 0 8px rgba(255,68,102,0.4); }

.char-card-icon { font-size: clamp(20px, 6vw, 32px); }
.char-card-name { font-size: 9px; color: var(--text-dim); margin-top: 2px; text-align: center; }

.char-select-footer {
  display: flex; flex-direction: column;
  align-items: center; gap: 8px;
  padding: 12px;
}
.selecting-indicator {
  font-size: 13px; color: var(--text-dim);
}

/* ============ STAGE SELECT ============ */
#screen-stage {
  padding-top: 60px;
  justify-content: flex-start;
  overflow-y: auto;
}

.stage-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px; padding: 20px;
  width: 100%; max-width: 480px;
}

.stage-card {
  aspect-ratio: 16/9;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid var(--border);
  cursor: pointer; transition: all 0.1s;
  position: relative;
  display: flex; align-items: flex-end;
}
.stage-card.selected { border-color: var(--gold); box-shadow: 0 0 12px rgba(255,215,0,0.4); }
.stage-card:active { transform: scale(0.96); }
.stage-preview { position: absolute; inset: 0; }
.stage-name {
  position: relative; z-index: 1;
  width: 100%; padding: 6px 8px;
  background: rgba(0,0,0,0.7);
  font-size: 12px; font-weight: 700;
}

/* ============ BATTLE HUD ============ */
.battle-hud {
  position: absolute; top: 0; left: 0; right: 0;
  height: 64px; z-index: 10;
  display: flex; align-items: center;
  padding: 8px 12px; gap: 8px;
  background: rgba(0,0,0,0.8);
  border-bottom: 1px solid var(--border);
}

.hud-player {
  flex: 1; display: flex; flex-direction: column; gap: 4px;
}
.p2-hud { align-items: flex-end; }

.hud-name {
  font-family: 'Orbitron', sans-serif;
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.05em;
}
.p1-hud .hud-name { color: var(--p1-color); }
.p2-hud .hud-name { color: var(--p2-color); }

.hp-bar-wrap {
  width: 100%; height: 10px;
  background: #1a1a1a; border-radius: 2px; overflow: hidden;
  border: 1px solid #333;
}
.hp-bar {
  height: 100%; border-radius: 2px;
  transition: width 0.2s ease-out;
}
.p1-hp { background: linear-gradient(90deg, var(--hp-green), #16a34a); }
.p2-hp { background: linear-gradient(270deg, var(--hp-green), #16a34a); float: right; }

.hud-hp-text { font-size: 10px; color: var(--text-dim); }

.hud-center {
  display: flex; flex-direction: column;
  align-items: center; gap: 2px;
  min-width: 60px;
}

.round-timer {
  font-family: 'Orbitron', sans-serif;
  font-size: 28px; font-weight: 900;
  color: #fff; line-height: 1;
}
.round-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 9px; color: var(--text-dim);
  letter-spacing: 0.1em;
}

/* ============ CANVAS ============ */
#game-canvas {
  position: absolute; top: 64px; left: 0; right: 0;
  width: 100%;
}

/* ============ CONTROLS ============ */
.controls {
  position: absolute; bottom: 0;
  display: flex; align-items: flex-end;
  padding: 12px; gap: 12px; z-index: 10;
}
.p1-controls { left: 0; }
.p2-controls { right: 0; flex-direction: row-reverse; }

.stick-area {
  width: 90px; height: 90px;
  display: flex; align-items: center; justify-content: center;
}

.stick-base {
  width: 80px; height: 80px;
  background: rgba(255,255,255,0.05);
  border: 2px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  position: relative;
  display: flex; align-items: center; justify-content: center;
}

.stick-knob {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.25);
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 50%;
  position: absolute;
  pointer-events: none;
  transition: transform 0.05s;
}

.action-btns {
  display: flex; flex-direction: column;
  gap: 8px; align-items: center;
}

.action-btn {
  border: none; border-radius: 50%;
  font-size: 12px; font-weight: 700;
  cursor: pointer; color: #fff;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.08s;
  -webkit-user-select: none; user-select: none;
}
.action-btn:active { transform: scale(0.88); }

.btn-normal {
  width: 52px; height: 52px;
  background: rgba(0,212,255,0.3);
  border: 2px solid var(--p1-color);
  box-shadow: 0 0 12px rgba(0,212,255,0.3);
  font-size: 14px;
}
.btn-mid {
  width: 44px; height: 44px;
  background: rgba(255,215,0,0.25);
  border: 2px solid var(--gold);
  box-shadow: 0 0 10px rgba(255,215,0,0.3);
}
.btn-special {
  width: 40px; height: 40px;
  background: rgba(255,68,102,0.3);
  border: 2px solid var(--p2-color);
  box-shadow: 0 0 10px rgba(255,68,102,0.3);
  font-size: 11px;
}

.p2-controls .btn-normal { border-color: var(--p2-color); background: rgba(255,68,102,0.3); box-shadow: 0 0 12px rgba(255,68,102,0.3); }

/* ============ PAUSE ============ */
.pause-btn {
  position: absolute; top: 72px; right: 8px;
  background: rgba(0,0,0,0.5);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-dim); font-size: 18px;
  padding: 6px 10px; cursor: pointer; z-index: 10;
}

.overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.85);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}

.pause-menu {
  display: flex; flex-direction: column;
  align-items: center; gap: 16px;
  padding: 32px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px; min-width: 240px;
}

.pause-menu h2 {
  font-family: 'Orbitron', sans-serif;
  font-size: 24px; color: var(--gold);
}

/* ============ RESULT SCREEN ============ */
#screen-result {
  background: radial-gradient(ellipse at center, #1a0a2e 0%, #0a0a0f 70%);
}

.result-content {
  display: flex; flex-direction: column;
  align-items: center; gap: 24px;
}

.result-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(36px, 12vw, 72px);
  font-weight: 900; color: var(--gold);
  text-shadow: 0 0 30px var(--gold);
  animation: resultPop 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes resultPop {
  from { transform: scale(0); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.result-char { font-size: 80px; }
.result-name {
  font-family: 'Orbitron', sans-serif;
  font-size: 20px; font-weight: 700;
  color: #fff;
}

.result-btns {
  display: flex; flex-direction: column;
  gap: 12px; width: min(280px, 80vw);
}

/* ============ EFFECTS ============ */
.hit-effect {
  position: absolute;
  font-size: 24px; font-weight: 900;
  font-family: 'Orbitron', sans-serif;
  pointer-events: none;
  animation: hitFloat 0.6s ease-out forwards;
  z-index: 20;
  text-shadow: 0 2px 4px rgba(0,0,0,0.8);
}
@keyframes hitFloat {
  from { transform: translateY(0) scale(1.2); opacity: 1; }
  to { transform: translateY(-40px) scale(0.8); opacity: 0; }
}

.damage-flash {
  position: absolute; inset: 0;
  pointer-events: none;
  animation: flashAnim 0.15s ease-out forwards;
  z-index: 5;
}
@keyframes flashAnim {
  from { opacity: 0.3; }
  to { opacity: 0; }
}

/* ============================================
   追加CSS: 横向き・ボタン配置・設定画面
   ============================================ */

/* 縦向き警告オーバーレイ */
.rotate-overlay {
  display: none;
  position: fixed; inset: 0; z-index: 9999;
  background: #0a0a0f;
  flex-direction: column;
  align-items: center; justify-content: center;
  gap: 20px;
}
.rotate-icon { font-size: 60px; animation: rotateAnim 1.5s ease-in-out infinite; }
@keyframes rotateAnim {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(90deg); }
}
.rotate-text {
  font-family: 'Orbitron', sans-serif;
  font-size: 16px; color: var(--text);
  letter-spacing: 0.05em; text-align: center;
}

/* 縦向きのとき警告表示 */
@media (orientation: portrait) {
  .rotate-overlay { display: flex !important; }
}
@media (orientation: landscape) {
  .rotate-overlay { display: none !important; }
}

/* バトルコントロール: 左右に分離 */
.controls {
  position: absolute; bottom: 0;
  display: flex; align-items: center;
  padding: 10px 12px; gap: 14px; z-index: 10;
}
.p1-controls {
  left: 0;
  flex-direction: row; /* スティック左、ボタン右 */
}
.p2-controls {
  right: 0;
  flex-direction: row; /* ボタン左、スティック右 */
}

/* ボタングリッド 2x2 */
.action-btns {
  display: flex; flex-direction: column; gap: 8px;
}
.action-row {
  display: flex; flex-direction: row; gap: 8px;
}

/* ジャンプボタン */
.btn-jump {
  width: 48px; height: 48px;
  background: rgba(100,200,100,0.25);
  border: 2px solid #4ade80;
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(74,222,128,0.3);
  font-size: 18px; font-weight: 900; color: #4ade80;
}

/* ボタンサイズ調整 */
.btn-normal, .btn-mid, .btn-special, .btn-jump {
  width: 50px; height: 50px;
  display: flex; align-items: center; justify-content: center;
  touch-action: none;
}
.btn-normal { font-size: 13px; }
.btn-mid { font-size: 12px; }
.btn-special { font-size: 11px; }

/* スティックエリア */
.stick-area {
  width: 88px; height: 88px;
  display: flex; align-items: center; justify-content: center;
  touch-action: none;
}
.stick-base {
  width: 80px; height: 80px;
  background: rgba(255,255,255,0.06);
  border: 2px solid rgba(255,255,255,0.18);
  border-radius: 50%;
  position: relative;
  display: flex; align-items: center; justify-content: center;
}
.stick-knob {
  width: 34px; height: 34px;
  background: rgba(255,255,255,0.28);
  border: 2px solid rgba(255,255,255,0.5);
  border-radius: 50%;
  position: absolute;
  pointer-events: none;
}

/* 設定画面 */
#screen-settings {
  padding-top: 60px;
  justify-content: flex-start;
  overflow-y: auto;
  background: var(--bg-dark);
}
.settings-content {
  width: 100%; max-width: 480px;
  padding: 20px;
  display: flex; flex-direction: column; gap: 24px;
}
.settings-section {
  display: flex; flex-direction: column; gap: 10px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.settings-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 12px; color: var(--gold);
  letter-spacing: 0.1em;
}
.settings-options {
  display: flex; gap: 8px; flex-wrap: wrap;
}
.setting-opt {
  padding: 8px 16px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-dim); font-size: 14px;
  cursor: pointer; transition: all 0.15s;
}
.setting-opt.active {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(124,58,237,0.2);
}
.setting-opt:active { transform: scale(0.96); }
.settings-info {
  font-size: 12px; color: var(--text-dim);
  line-height: 1.8;
}