/* Meteor Storm - 超絶格好良い隕石落下 */

:root {
    --bg-dark: #0a0a0f;
    --bg-darker: #050508;
    --primary: #ff6b35;
    --secondary: #f7931e;
    --accent: #ffd23f;
    --ice: #00d9ff;
    --cosmic: #9d4edd;
    --plasma: #ff006e;
    --glow: rgba(255, 107, 53, 0.5);
}

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

body {
    font-family: 'Arial', sans-serif;
    background: var(--bg-dark);
    color: white;
    overflow: hidden;
    position: relative;
    height: 100vh;
}

/* Canvas層 */
canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#meteorCanvas {
    z-index: 2;
}

#particleCanvas {
    z-index: 3;
}

#glowCanvas {
    z-index: 1;
    filter: blur(20px);
    opacity: 0.7;
}

/* コントロールパネル */
.control-panel {
    position: fixed;
    top: 20px;
    left: 20px;
    background: rgba(10, 10, 15, 0.9);
    border: 2px solid var(--primary);
    border-radius: 15px;
    padding: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.3);
    z-index: 10;
    max-width: 300px;
    animation: panelGlow 3s ease-in-out infinite;
}

@keyframes panelGlow {
    0%, 100% {
        box-shadow: 0 0 30px rgba(255, 107, 53, 0.3);
    }
    50% {
        box-shadow: 0 0 50px rgba(255, 107, 53, 0.5);
    }
}

.control-panel h1 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    text-align: center;
    background: linear-gradient(45deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 20px var(--glow);
}

/* コントロール */
.controls {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.control-group label {
    font-size: 0.9rem;
    color: var(--accent);
    font-weight: bold;
}

.control-group select,
.control-group input[type="range"] {
    background: var(--bg-darker);
    border: 1px solid var(--primary);
    border-radius: 5px;
    color: white;
    padding: 5px;
}

.control-group select {
    cursor: pointer;
}

.control-group input[type="range"] {
    cursor: pointer;
    -webkit-appearance: none;
}

.control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 15px;
    height: 15px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px var(--glow);
}

.control-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

/* ボタン */
.buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.btn {
    padding: 10px 15px;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-darker);
    color: white;
    border: 1px solid var(--primary);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, var(--glow) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.btn:hover::before {
    width: 100%;
    height: 100%;
}

.btn.primary {
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    border: none;
    color: white;
    grid-column: span 2;
}

.btn.epic {
    background: linear-gradient(45deg, var(--plasma), var(--cosmic));
    border: none;
    grid-column: span 2;
    animation: epicPulse 2s ease-in-out infinite;
}

@keyframes epicPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 20px rgba(255, 0, 110, 0.5);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 40px rgba(157, 78, 221, 0.7);
    }
}

/* 統計 */
.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.stat {
    background: var(--bg-darker);
    border: 1px solid var(--primary);
    border-radius: 8px;
    padding: 10px;
    text-align: center;
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--accent);
    margin-bottom: 5px;
}

.stat-value {
    display: block;
    font-size: 1.2rem;
    font-weight: bold;
    color: white;
    text-shadow: 0 0 10px var(--glow);
}

/* 隕石エフェクト */
.meteor-trail {
    position: absolute;
    width: 2px;
    background: linear-gradient(to bottom, 
        transparent 0%, 
        var(--primary) 30%, 
        var(--accent) 70%, 
        transparent 100%
    );
    filter: blur(1px);
    pointer-events: none;
}

/* レスポンシブ */
@media (max-width: 768px) {
    .control-panel {
        left: 10px;
        top: 10px;
        max-width: 250px;
        padding: 15px;
    }
    
    .control-panel h1 {
        font-size: 1.4rem;
    }
    
    .buttons {
        grid-template-columns: 1fr;
    }
    
    .btn.primary,
    .btn.epic {
        grid-column: span 1;
    }
}

/* 背景アニメーション */
body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(255, 107, 53, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(157, 78, 221, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(0, 217, 255, 0.05) 0%, transparent 70%);
    animation: bgPulse 10s ease-in-out infinite;
    z-index: 0;
}

@keyframes bgPulse {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.6;
    }
}