* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: white;
            min-height: 100vh;
            padding: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .container {
            background: white;
            border-radius: 12px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
            max-width: 1000px;
            width: 100%;
            padding: 0;
            display: flex;
            flex-direction: column;
            min-height: 600px;
        }
        .header-bar {
            background: #57c3bc;
            color: white;
            padding: 15px 30px;
            text-align: center;
            border-radius: 12px 12px 0 0;
            font-size: 13px;
            line-height: 1.4;
            position: relative;
        }
        .header-bar::after {
            content: 'v.1.2';
            position: absolute;
            right: 30px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 10px;
            opacity: 0.8;
        }
        .main-content {
            padding: 40px 30px;
            flex: 1;
        }
        .header {
            text-align: center;
            margin-bottom: 30px;
        }
        .header h1 {
            color: #333;
            margin-bottom: 10px;
            font-size: 28px;
        }
        .header p {
            color: #666;
            font-size: 14px;
        }
        .input-section {
            display: flex;
            gap: 10px;
            margin-bottom: 30px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .input-group {
            display: flex;
            gap: 10px;
            flex: 1;
            min-width: 250px;
            max-width: 600px;
        }
        input {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: 6px;
            font-size: 14px;
            transition: border-color 0.3s;
        }
        input:focus {
            outline: none;
            border-color: #667eea;
        }
        button {
            padding: 12px 30px;
            background: #57c3bc;
            color: white;
            border: none;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
        }
        button:hover {
            background: #349b94;
            transform: translateY(-2px);
        }
        button:active {
            transform: translateY(0);
        }
        button:disabled {
            opacity: 0.6;
            cursor: not-allowed;
        }
        .loading {
            display: none;
            text-align: center;
            color: #667eea;
            font-weight: 600;
            margin: 20px 0;
        }
        .error {
            display: none;
            background: #fee;
            border: 2px solid #f88;
            color: #c00;
            padding: 15px;
            border-radius: 6px;
            margin: 20px 0;
            text-align: center;
            font-weight: 500;
        }
        .stats {
            display: none;
            background: #f9f9f9;
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 30px;
            text-align: center;
        }
        .stats h3 {
            color: #333;
            margin-bottom: 15px;
            font-size: 16px;
        }
        .stat-values {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .stat-item {
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .stat-label {
            color: #666;
            font-size: 12px;
            margin-bottom: 5px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .stat-value {
            font-size: 24px;
            font-weight: bold;
            color: #1c756f;
        }
        .chart-container {
            display: none;
            position: relative;
            width: 100%;
            height: 400px;
            margin-bottom: 30px;
        }
        .info-box {
            background: #f0f0f0;
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 30px;
            text-align: left;
        }
        .info-box p {
            color: #333;
            font-size: 14px;
            line-height: 1.6;
            margin: 0 0 15px 0;
        }
        .info-box ul {
            color: #333;
            font-size: 14px;
            line-height: 1.0;
            margin: 10px 0 0 20px;
            padding: 0;
        }
        .info-box li {
            margin-bottom: 5px;
            list-style-position: outside;
        }
        .info-box a {
            color: #1c756f;
            text-decoration: none;
            font-weight: 600;
        }
        .info-box a:hover {
            color: #349b94;
        }
       .footer-bar a {
    color: inherit;
    text-decoration: none;
    font-weight: 400; /* Normál vastagság */
    transition: font-weight 0.2s ease; /* Sima átmenet */
}
.footer-bar a:hover {
    font-weight: 700; /* Félkövér vastagság */
    text-decoration: none; /* Biztosítjuk, hogy ne jelenjen meg aláhúzás */
}
        .footer-bar {
            background: #f5f5f5;
            color: #666;
            padding: 15px 30px;
            text-align: center;
            border-radius: 0 0 12px 12px;
            font-size: 12px;
            border-top: 1px solid #ddd;
        }
        @media (max-width: 768px) {
            .main-content {
                padding: 20px 15px;
            }
            .header h1 {
                font-size: 22px;
            }
            .input-group {
                flex-direction: column;
                min-width: 100%;
            }
            input, button {
                width: 100%;
            }
            .stat-values {
                flex-direction: column;
                gap: 20px;
            }
            .chart-container {
                height: 300px;
            }
            .header-bar {
                font-size: 11px;
                padding: 12px 20px;
            }
        }