@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;700;900&display=swap');
        
        body {
            background-color: #f1f5f9;
            color: #334155;
            font-family: 'Noto Sans JP', sans-serif;
            -webkit-tap-highlight-color: transparent;
        }

        .post-card {
            transition: transform 0.2s ease;
            background: white;
            box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
        }

        .glass-nav {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in { animation: fadeIn 0.4s ease forwards; }

        .voted-yes {
            background-color: #10b981 !important;
            color: white !important;
            border-color: #059669 !important;
            opacity: 1 !important;
        }
        .voted-no {
            background-color: #ef4444 !important;
            color: white !important;
            border-color: #dc2626 !important;
            opacity: 1 !important;
        }
        .vote-disabled {
            opacity: 0.5;
            cursor: not-allowed;
            filter: grayscale(0.5);
        }

        .loading-spinner {
            border: 3px solid rgba(0,0,0,0.1);
            border-top: 3px solid #6366f1;
            border-radius: 50%;
            width: 24px;
            height: 24px;
            animation: spin 1s linear infinite;
        }
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .header-logo {
            width: 250px;
            height: 100px;
            object-fit: cover;
            border-radius: 10px;
        }