@charset "UTF-8";

/* 変数定義 */
:root {
    --color1: #ff6b6b;
    --color2: #4ecdc4;
    --color3: #ffd93d;
    --color4: #a855f7;
    --color5: #22c55e;
    --color6: #f97316;
    --color7: #3b82f6;
    --color8: #ec4899;
}

/* 基本スタイル */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    min-height: 100vh;
    background: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 50%, #0f0f1a 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px 20px;
    font-family: 'Courier New', monospace;
}
h1 {
  font-size: 1.8rem;
  margin-bottom: 15px;
  background: linear-gradient(90deg, #ff6b6b, #4ecdc4, #ffd93d, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* キャンバス */
#canvas {
    background: radial-gradient(circle at center, #1a1a2e 0%, #0a0a0f 100%);
    border-radius: 5px;
    box-shadow: 0 0 20px rgba(78, 205, 196, 0.2), inset 0 0 60px rgba(0,0,0,0.5);
    max-width: 100%;
    height: auto;
}

/* コントロールボタン */
.controls {
    margin-top: 20px;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}
button, .controls a {
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    letter-spacing: 0.1em;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    transition: transform 0.2s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
button:hover, .controls a:hover {
    transform: scale(1.05);
}
#playBtn {
    background: linear-gradient(135deg, #ff6b6b, #ee5a5a);
}
#playBtn.paused {
    background: linear-gradient(135deg, #4ecdc4, #45b7d1);
}
#guideBtn {
    background: linear-gradient(135deg, #3d61ff, #2945e6);
}
#guideBtn.active {
    background: linear-gradient(135deg, #ffb93d, #e68f29);
}
#backBtn {
    background: linear-gradient(135deg, #6b7280, #4b5563);
}

/* スライダー */
.sliders {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 700px;
}
.slider-row {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}
.slider-group {
    text-align: center;
    min-width: 80px;
}
.slider-group label {
    display: inline;
    margin-bottom: 8px;
    font-size: 0.85rem;
}
.slider-group:nth-child(1) label { color: #ff6b6b; }
.slider-group:nth-child(2) label { color: #4ecdc4; }
.slider-group:nth-child(3) label { color: #ffd93d; }
.slider-group:nth-child(4) label { color: #a855f7; }
.slider-group:nth-child(5) label { color: #22c55e; }
.slider-group:nth-child(6) label { color: #f97316; }
input[type="range"] {
    cursor: pointer;
    max-width: 300px;
    margin: 8px 0 16px 0;
    -webkit-appearance: none;
    appearance: none;
    height: 8px;
    border-radius: 4px;
    background: rgba(255,255,255,0.1);
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px currentColor;
}
input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    box-shadow: 0 0 10px currentColor;
}
#speed1 {
    background: linear-gradient(to right, #5a5a5a, var(--color1));
}
#speed1::-webkit-slider-thumb {
    background: var(--color1);
}
#speed1::-moz-range-thumb {
    background: var(--color1);
}
#speed2 {
    background: linear-gradient(to right, #5a5a5a, var(--color2));
}
#speed2::-webkit-slider-thumb {
    background: var(--color2);
}
#speed2::-moz-range-thumb {
    background: var(--color2);
}
#speed3 {
    background: linear-gradient(to right, #5a5a5a, var(--color3));
}
#speed3::-webkit-slider-thumb {
    background: var(--color3);
}
#speed3::-moz-range-thumb {
    background: var(--color3);
}
#speed4 {
    background: linear-gradient(to right, #5a5a5a, var(--color4));
}
#speed4::-webkit-slider-thumb {
    background: var(--color4);
}
#speed4::-moz-range-thumb {
    background: var(--color4);
}
#speed5 {
    background: linear-gradient(to right, #5a5a5a, var(--color5));
}
#speed5::-webkit-slider-thumb {
    background: var(--color5);
}
#speed5::-moz-range-thumb {
    background: var(--color5);
}
#speed6 {
    background: linear-gradient(to right, #5a5a5a, var(--color6));
}
#speed6::-webkit-slider-thumb {
    background: var(--color6);
}
#speed6::-moz-range-thumb {
    background: var(--color6);
}
#speed7 {
    background: linear-gradient(to right, #5a5a5a, var(--color7));
}
#speed7::-webkit-slider-thumb {
    background: var(--color7);
}
#speed7::-moz-range-thumb {
    background: var(--color7);
}
#speed8 {
    background: linear-gradient(to right, #5a5a5a, var(--color8));
}
#speed8::-webkit-slider-thumb {
    background: var(--color8);
}
#speed8::-moz-range-thumb {
    background: var(--color8);
}