body { background: #f8f9fa; }
        h1 { margin-top: 20px; margin-bottom: 30px; text-align: center; }
        table { background: white; }
        .filter-form { max-width: 900px; margin: 0 auto 30px auto; }
        .popisek { max-width: 900px; margin: 0 auto 30px auto; text-align:center }
        .mezicasy-btn { max-width: 900px; margin: 0 auto 30px auto;  display:block}
        .category-header { margin-top: 40px; }
        .no-results { color: #777; font-style: italic; }

        /* Plovoucí tlačítko pro obnovení */
        #refresh-btn {
            position: fixed;
            bottom: 25px;
            right: 25px;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background-color: #0d6efd;
            color: white;
            border: none;
            box-shadow: 0 3px 6px rgba(0,0,0,0.25);
            cursor: pointer;
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            overflow: hidden;
            padding: 0;
        }

        #refresh-btn i {
            transition: transform 0.5s linear;
        }

        #refresh-btn .loading-text {
            display: none;
            margin-left: 10px;
            white-space: nowrap;
        }

        #refresh-btn.loading {
            width: 150px;
            border-radius: 28px;
        }

        #refresh-btn.loading i {
            animation: spin 1s linear infinite;
        }

        #refresh-btn.loading .loading-text {
            display: inline-block;
            font-weight: 500;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        /* Logo firmy */
        footer {
            text-align: center;
            margin: 60px 0 20px 0;
            color: #666;
        }
        footer img {
            width: 80%;
            max-width: 400px;
            opacity: 0.8;
            transition: opacity 0.2s;
        }
        footer img:hover {
            opacity: 1;
        }