* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f5f5f5;
        }

        #header_wrap {
            background-color: #fff;
            border-bottom: 1px solid #e0e0e0;
            padding: 1rem 0;
        }

        #header {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .upmenu {
            list-style: none;
            display: flex;
            justify-content: flex-end;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .upmenu li a {
            color: #666;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.3s ease;
        }

        .upmenu li a:hover {
            color: #d35400;
        }

        #back_submenu {
            background: linear-gradient(135deg, #e67e22 0%, #d35400 100%);
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        #submenu {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        #horizontal_menu {
            list-style: none;
            display: flex;
            gap: 0;
            flex-wrap: wrap;
            padding: 0;
        }

        #horizontal_menu li {
            flex: 1;
            min-width: 120px;
        }

        #horizontal_menu li a {
            display: block;
            color: #fff;
            text-decoration: none;
            padding: 1rem 1.5rem;
            text-align: center;
            transition: background-color 0.3s ease;
            font-weight: 500;
        }

        #horizontal_menu li a:hover {
            background-color: rgba(255,255,255,0.2);
        }

        #horizontal_menu li a img {
            vertical-align: middle;
            height: 20px;
        }

        #media_menu {
            list-style: none;
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            padding: 1rem 0;
            flex-wrap: wrap;
        }

        #media_menu li a {
            display: block;
            opacity: 0.9;
            transition: opacity 0.3s ease, transform 0.3s ease;
        }

        #media_menu li a:hover {
            opacity: 1;
            transform: translateY(-2px);
        }

        #media_menu li a img {
            height: 40px;
            width: auto;
        }

        #container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 20px;
        }

        h1 {
            color: #2c3e50;
            font-size: 2.5rem;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 3px solid #e67e22;
        }

        article {
            background: #fff;
            padding: 2.5rem;
            margin-bottom: 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.08);
        }

        article h2 {
            color: #d35400;
            font-size: 1.8rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }

        article h3 {
            color: #e67e22;
            font-size: 1.4rem;
            margin-top: 1.5rem;
            margin-bottom: 0.8rem;
        }

        article h4 {
            color: #555;
            font-size: 1.2rem;
            margin-top: 1.2rem;
            margin-bottom: 0.6rem;
        }

        article p {
            margin-bottom: 1rem;
            color: #555;
            line-height: 1.8;
        }

        article ul, article ol {
            margin-left: 2rem;
            margin-bottom: 1rem;
        }

        article li {
            margin-bottom: 0.5rem;
            color: #555;
        }

        .transition-section {
            background: #fff;
            padding: 2rem;
            margin-bottom: 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.08);
        }

        .transition-section p {
            color: #555;
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        .links-section {
            background: #fff;
            padding: 2.5rem;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.08);
            margin-bottom: 2rem;
        }

        .links-section h3 {
            color: #d35400;
            font-size: 1.5rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #f0f0f0;
        }

        .links-section h3:first-child {
            margin-top: 0;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.8rem 2rem;
            margin-bottom: 2rem;
        }

        .links-section ul li {
            padding-left: 1.2rem;
            position: relative;
        }

        .links-section ul li::before {
            content: "→";
            position: absolute;
            left: 0;
            color: #e67e22;
            font-weight: bold;
        }

        .links-section ul li a {
            color: #2980b9;
            text-decoration: none;
            transition: color 0.3s ease;
            line-height: 1.6;
        }

        .links-section ul li a:hover {
            color: #d35400;
            text-decoration: underline;
        }

        #footer {
            background-color: #2c3e50;
            color: #ecf0f1;
            padding: 2rem 0;
            margin-top: 3rem;
        }

        #footer ul {
            list-style: none;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
        }

        #footer li {
            display: flex;
            align-items: center;
        }

        #footer a {
            color: #ecf0f1;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        #footer a:hover {
            color: #e67e22;
        }

        #footer img {
            vertical-align: middle;
            margin-right: 0.5rem;
        }

        #logopanos {
            height: 30px;
            width: auto;
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }

            article {
                padding: 1.5rem;
            }

            article h2 {
                font-size: 1.5rem;
            }

            article h3 {
                font-size: 1.2rem;
            }

            .links-section {
                padding: 1.5rem;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 0.6rem;
            }

            #horizontal_menu {
                flex-direction: column;
            }

            #horizontal_menu li {
                min-width: 100%;
            }

            #horizontal_menu li a {
                padding: 0.8rem 1rem;
            }

            .upmenu {
                justify-content: center;
                gap: 1rem;
                font-size: 0.85rem;
            }

            #footer ul {
                flex-direction: column;
                text-align: center;
            }

            .transition-section {
                padding: 1.5rem;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 1.6rem;
            }

            article {
                padding: 1rem;
            }

            .links-section {
                padding: 1rem;
            }

            #media_menu li a img {
                height: 30px;
            }
        }