:root {
            --primary: #2563eb;
            --dark: #0f172a;
            --light: #f8fafc;
            --gold: #d4af37;
        }

        /* .open-sans-fwcl {
            font-family: "Open Sans", sans-serif;
            font-optical-sizing: auto;
            font-weight: <weight>;
            font-style: normal;
            font-variation-settings: "wdth" 100;
        } */

        body {
            font-family: 'Open Sans', sans-serif;
            font-weight: 200;
            margin: 0;
            background-color: var(--light);
            color: var(--dark);
        }

 /* Header & Navigation */
        header {
            background-color:   #2c3e50;
            padding: 1rem 5%;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        nav {
            display: flex;
            justify-content: space-between;
            /* align-items: center; */
        }

	/* 1. Den Container im Header positionieren und skalieren */
	.logo {
  		width: 60px;      /* Hier stellst du die gewünschte Breite ein */
  		height: auto;      /* Sorgt dafür, dass die Proportionen stimmen */
  		display: flex;     /* Hilft bei der vertikalen Ausrichtung im Header */
  		align-items: center;
	}

	/* 2. Das Bild (SVG) innerhalb des Containers anpassen */
	.logo img {
  		width: 100%;       /* Das SVG füllt die 180px des Divs komplett aus */
  		height: auto;      /* Verhindert Verzerrungen */
  		display: block;
		color: #ffffff;
	}

        .nav-links {
            list-style: none;
            display: flex;
        }

        .nav-links li {
            margin-left: 20px;
        }

        .nav-links a {
            text-decoration: none;
            color: white;
            transition: color 0.3s;
        }

        .nav-links a:hover {
            color: #007bff;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }

        /* FLEXBOX: Login Bereich */
        .hero-section {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 40px;
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
        }

        .login-box {
            flex: 1 1 350px;
            padding: 40px;
        }

        .brand-box {
            flex: 1 1 350px;
            background-image: url(https://bootdey.com/img/Content/bg1.jpg);
            /* background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%); */
            color: white;
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            text-align: center;
        }

        /* Form Styling */
        input {
            width: 100%;
            padding: 12px;
            margin: 10px 0;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            box-sizing: border-box;
        }

        /* .btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 12px;
            border-radius: 8px;
            width: 100%;
            cursor: pointer;
            font-weight: bold;
        } */ 
        


        .btn {
            margin-top: 1rem;
            border: none;
            text-decoration: none;
            text-transform: uppercase;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            font-weight: 100;
            background: linear-gradient(to right, #328beb, rgb(20, 93, 209));
            display: inline-block;
            /* padding: 1em 3em; */
            padding: 10px 25px;
            border-radius: 50px;
            font-weight: bold;
            color: white;
            transition: 1s ease; 
        }

        .btn:hover {
            /* color: rgb(246, 249, 249); */
            letter-spacing: 1.5px;
        }


        .btn:hover { opacity: 0.9; }

        /* GRID: Chart Bereich */
        .charts-title {
            text-align: center;
            margin-bottom: 20px;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .charts-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .chart-card {
            background: white;
            border-radius: 12px;
            padding: 15px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.05);
            min-height: 450px;
        }
         
        footer {
            background:  #2c3e50;
            color: white;
            text-align: center;
            padding: 0.5rem 0;
            margin-top: auto;
        }


        
        /* -----------------     Navigation ausblenden ....   --------------------------------------------*/
        nav {
            transition: transform 0.3s ease;
        }

        /* Navigation ausblenden */
        nav.hidden {
            transform: translateY(-100%);
        }
        header {
            transition: transform 0.3s ease;
        }

        header.hidden {
            transform: translateY(-100%);
        }

        .nav-toggle {
            position: fixed;
            top: 10px;
            left: 50%;
            transform: translateX(-50%);
            background: #2c3e50;
            color: white;
            padding: 8px 12px;
            border-radius: 50%;
            cursor: pointer;
            z-index: 2000;
            display: none;
            font-size: 14px;
        }

        /* sichtbar wenn nav versteckt ist */
        .nav-toggle.show {
            display: block;
        }

        /* -----------------  Ende --> Navigation ausblenden ....   --------------------------------------------*/


        @media (max-width: 768px) {
            .nav-links li { margin-left: 10px; } 
             .charts-grid { display: grid; grid-template-columns: repeat(1, 1fr); gap: 10px; }
        }
        
        @media (max-width: 500px) {
            .nav-links li { margin-left: 0px; }
            .nav-links { list-style: none;  display: block; }
            .logo { width: 90px;  height: auto; }

          }