/* CSS Document */

@charset "utf-8";

        .banner-wrapper-80th {
            max-width: 800px;
            margin: 0 auto;
            background: white;
            border-radius: 12px;
            box-shadow: 0 8px 24px rgba(0,0,0,0.12);
            overflow: hidden;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .banner-wrapper-80th:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0,0,0,0.18);
        }
        
        .compact-banner-80th {
            background: linear-gradient(135deg, #1a202c 0%, #2d3748 50%, #4a5568 100%);
            position: relative;
            padding: 30px 40px;
            color: white;
            min-height: 120px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        
        /* 戦後復興の街並みシルエット */
        .banner-80th::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to right, 
                transparent 0%,
                rgba(255,255,255,0.1) 20%,
                rgba(255,255,255,0.05) 40%,
                rgba(255,255,255,0.1) 60%,
                transparent 80%
            );
            background-image: 
                /* 建物のシルエット */
                linear-gradient(to top, rgba(255,255,255,0.1) 30px, transparent 30px),
                linear-gradient(to top, rgba(255,255,255,0.08) 40px, transparent 40px),
                linear-gradient(to top, rgba(255,255,255,0.12) 25px, transparent 25px),
                linear-gradient(to top, rgba(255,255,255,0.1) 35px, transparent 35px);
            background-size: 80px 60px, 60px 60px, 90px 60px, 70px 60px;
            background-position: 10% bottom, 30% bottom, 60% bottom, 85% bottom;
            background-repeat: no-repeat;
        }
        
        /* 印章のモチーフ */
        .banner-80th::after {
            content: '';
            position: absolute;
            top: 20px;
            right: 30px;
            width: 80px;
            height: 80px;
            background: radial-gradient(circle, rgba(255,215,0,0.2) 0%, transparent 70%);
            border: 2px solid rgba(255,215,0,0.3);
            border-radius: 50%;
            background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 60 60"><text x="30" y="35" text-anchor="middle" fill="rgba(255,215,0,0.4)" font-size="16" font-family="serif" font-weight="bold">印</text></svg>');
            background-size: contain;
            background-repeat: no-repeat;
            background-position: center;
        }
        
        .banner-content-80th {
            flex: 1;
            z-index: 2;
            position: relative;
        }
        
        .anniversary-badge-80th {
            display: inline-block;
            background: linear-gradient(45deg, #ffd700, #ffed4e);
            color: #1a202c;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: bold;
            margin-bottom: 8px;
            letter-spacing: 0.05em;
        }
        
        .main-title-80th {
            font-size: 28px;
            font-weight: bold;
            line-height: 1.2;
            margin-bottom: 8px;
            color: #ffffff;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.4);
        }
        
        .sub-title-80th {
            font-size: 14px;
            color: #cbd5e0;
            margin-bottom: 16px;
            line-height: 1.4;
        }
        
        .cta-text-80th {
            font-size: 12px;
            color: #ffd700;
            font-weight: bold;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .cta-arrow-80th {
            transition: transform 0.3s ease;
        }
        
        .banner-wrapper-80th:hover .cta-arrow-80th {
            transform: translateX(4px);
        }
        
        /* 戦後復興の雰囲気を表現する背景パターン */
        .postwar-pattern-80th {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            opacity: 0.1;
            background-image: 
                radial-gradient(circle at 20% 80%, rgba(255,255,255,0.1) 1px, transparent 1px),
                radial-gradient(circle at 80% 20%, rgba(255,255,255,0.1) 1px, transparent 1px),
                radial-gradient(circle at 40% 40%, rgba(255,255,255,0.08) 1px, transparent 1px);
            background-size: 50px 50px, 80px 80px, 60px 60px;
            animation: shimmer 8s ease-in-out infinite;
        }
        
        @keyframes shimmer {
            0%, 100% { opacity: 0.1; }
            50% { opacity: 0.2; }
        }
        
        @media (max-width: 768px) {
            .compact-banner-80th {
                padding: 20px;
                min-height: 100px;
            }
            
            .main-title-80th {
                font-size: 22px;
            }
            
            .sub-title-80th {
                font-size: 12px;
            }
            
            .banner-80th::after {
                width: 60px;
                height: 60px;
                right: 20px;
            }
        }