body {
    background-color: #050505;
    color: #d4d4d4;
    font-family: 'Shippori Mincho', serif;
    overflow-x: hidden;
}

/* 炎のゆらぎテキスト */
.fire-text {
    background: linear-gradient(0deg, #ff4500, #ff8c00, #ffd700);
    -webkit-background-clip: text;
    color: transparent;
    animation: flicker 3s infinite alternate;
}

@keyframes flicker {
    0%, 100% { opacity: 1; filter: brightness(100%) blur(0px); }
    50% { opacity: 0.8; filter: brightness(120%) blur(1px); }
}

/* 赤熱する鉄の表現 */
.heated-iron {
    position: relative;
}
.heated-iron::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(255, 69, 0, 0.2), transparent 70%);
    mix-blend-mode: color-dodge;
    animation: pulse-heat 4s infinite ease-in-out;
}

@keyframes pulse-heat {
    0%, 100% { opacity: 0.3; transform: scale(0.95); }
    50% { opacity: 0.6; transform: scale(1.05); }
}

#embers-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
    mix-blend-mode: screen;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s, transform 1s;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}