/* =====================================
   HIROGARUヒーローセクション - 放射状アニメーション
   ===================================== */

/* 放射状アニメーション用コンテナ */
.radial-animation-container {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
}

/* 中心の核となる円 - ビジネス成長のシンボル */
.radial-core {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #6ce5e8 0%, #8c52ff 100%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 
        0 0 20px rgba(0, 123, 255, 0.4),
        0 0 40px rgba(0, 123, 255, 0.2);
    animation: pulse-core 2.5s ease-in-out infinite;
    z-index: 10;
}

.radial-core::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.9;
}

/* 放射状に広がる円たち - 営業効果の拡散を表現 */
.radial-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    border: 2px solid rgba(0, 123, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: radial-expand 4s ease-out infinite;
}

/* 各円のアニメーション遅延でリズム感を演出 */
.radial-circle:nth-child(2) { animation-delay: 0s; }
.radial-circle:nth-child(3) { animation-delay: 1s; }
.radial-circle:nth-child(4) { animation-delay: 2s; }
.radial-circle:nth-child(5) { animation-delay: 3s; }

/* 装飾的な小さな円 - データポイントを表現 */
.floating-dot {
    position: absolute;
    width: 6px;
    height: 6px;
    background: #28a745;
    border-radius: 50%;
    animation: float-around 5s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(40, 167, 69, 0.5);
}

.floating-dot:nth-child(6) {
    top: 15%;
    right: 25%;
    animation-delay: 0s;
}

.floating-dot:nth-child(7) {
    bottom: 20%;
    right: 10%;
    animation-delay: 1.5s;
}

.floating-dot:nth-child(8) {
    top: 65%;
    right: 40%;
    animation-delay: 3s;
}

/* ビジネスアイコン風装飾要素 */
.business-icon {
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 2px;
    animation: business-float 6s ease-in-out infinite;
}

.icon-chart {
    top: 25%;
    left: 15%;
    background: #dc3545;
    animation-delay: 0.5s;
}

.icon-target {
    bottom: 30%;
    left: 20%;
    background: #ffc107;
    border-radius: 50%;
    animation-delay: 2s;
}

.icon-growth {
    top: 70%;
    right: 15%;
    background: #17a2b8;
    transform: rotate(45deg);
    animation-delay: 4s;
}

/* =====================================
   アニメーション定義
   ===================================== */

@keyframes radial-expand {
    0% {
        width: 50px;
        height: 50px;
        opacity: 0.8;
        border-width: 3px;
        border-color: rgba(0, 123, 255, 0.6);
    }
    50% {
        opacity: 0.4;
        border-width: 2px;
        border-color: rgba(0, 123, 255, 0.4);
    }
    100% {
        width: 280px;
        height: 280px;
        opacity: 0;
        border-width: 1px;
        border-color: rgba(0, 123, 255, 0.1);
    }
}

@keyframes pulse-core {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        box-shadow: 
            0 0 20px rgba(0, 123, 255, 0.4),
            0 0 40px rgba(0, 123, 255, 0.2);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.15);
        box-shadow: 
            0 0 30px rgba(0, 123, 255, 0.6),
            0 0 60px rgba(0, 123, 255, 0.3);
    }
}

@keyframes float-around {
    0%, 100% {
        transform: translateY(0px) translateX(0px);
        opacity: 0.6;
    }
    25% {
        transform: translateY(-12px) translateX(8px);
        opacity: 1;
    }
    50% {
        transform: translateY(-8px) translateX(-4px);
        opacity: 0.8;
    }
    75% {
        transform: translateY(-15px) translateX(6px);
        opacity: 0.9;
    }
}

@keyframes business-float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.7;
    }
    33% {
        transform: translateY(-10px) rotate(120deg);
        opacity: 1;
    }
    66% {
        transform: translateY(-5px) rotate(240deg);
        opacity: 0.8;
    }
}

/* ホバー効果は削除 */

/* =====================================
   レスポンシブ対応
   ===================================== */

@media (max-width: 1200px) {
    .radial-animation-container {
        width: 280px;
        height: 280px;
    }
}

@media (max-width: 992px) {
    .radial-animation-container {
        width: 250px;
        height: 250px;
    }
    
    .radial-core {
        width: 40px;
        height: 40px;
    }
    
    .radial-core::before {
        width: 16px;
        height: 16px;
    }
}

@media (max-width: 768px) {
    .radial-animation-container {
        width: 200px;
        height: 200px;
    }
    
    .floating-dot {
        width: 4px;
        height: 4px;
    }
    
    .business-icon {
        width: 8px;
        height: 8px;
    }
}