body {
            background: #152147;
            font-family: Arial, sans-serif;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100vh;
            margin: 0;
        }
        .container {
            background: #fff;
            padding: 40px 30px;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            text-align: center;
        }
        input[type="text"] {
            padding: 10px;
            font-size: 16px;
            border-radius: 5px;
            border: 1px solid #ccc;
            width: 250px;
            margin-bottom: 20px;
        }
        button {
            padding: 10px 30px;
            font-size: 16px;
            border-radius: 5px;
            border: none;
            background: #152147;
            color: white;
            cursor: pointer;
        }
        button:disabled {
            background: #aaa;
            cursor: not-allowed;
        }
        .error {
            color: #d32f2f;
            margin-bottom: 10px;
        }
        .success {
            color: #388e3c;
            margin-bottom: 10px;
        }
        .main-footer {
            background: #111827;
            color: #fff;
            padding: 0;
            width: 100vw;
            margin: 0;
            position: fixed;
            left: 0;
            bottom: 0;
            z-index: 2000;
            box-shadow: 0 -2px 10px rgba(0, 0, 0, 0);
        }
        .footer-content {
            display: flex;
            flex-direction: row;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            min-height: 60px;
        }
        .footer-left {
            font-size: 15px;
            opacity: 0.85;
            text-align: left;
            padding-left: 32px;
            flex: 0 0 auto;
        }
        .footer-center {
            font-size: 15px;
            opacity: 0.85;
            text-align: center;
            flex: 1 1 auto;
        }
        .footer-image {
            flex: 0 0 auto;
            padding-right: 32px;
        }
        .footer-image img {
            height: 40px;
            vertical-align: middle;
            filter: brightness(0) invert(1);
        }
        .main-header {
            background: #111827;
            color: #fff;
            padding: 0;
            width: 100vw;
            margin: 0;
            position: fixed;
            left: 0;
            top: 0;
            z-index: 2000;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0);
        }
        .header-content {
            display: flex;
            flex-direction: row;
            align-items: center;
            justify-content: center;
            width: 100%;
            min-height: 60px;
        }
        .header-logo {
            padding: 0;
        }
        .header-logo img {
            height: 40px;
            vertical-align: middle;
            filter: brightness(0) invert(1);
        }
        .header-center {
            flex: 1 1 auto;
            text-align: center;
        }
        .header-right {
            flex: 0 0 auto;
            padding-right: 32px;
        }
        .full-bg-image {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            z-index: 1;
            overflow: hidden;
        }
        .full-bg-image img {
            width: 100vw;
            height: 100vh;
            object-fit: cover;
            object-position: center;
            display: block;
            pointer-events: none;
            user-select: none;
        }
        .form-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            z-index: 10;
            display: flex;
            align-items: center;
            justify-content: center;
            pointer-events: none; /* allow header/footer clicks */
        }
        .form-overlay .container {
            background: #DADBDE;
            border-radius: 16px;
            box-shadow: 0 4px 32px rgba(0,0,0,0.18);
            padding: 40px 30px;
            pointer-events: auto; /* allow form interaction */
        }