:root {
          --orange: #f7941d;
          --dark-orange: #f15a24;
          --dark-gray: #333;
          --light-gray: #f4f4f4;
          --white: #fff;
          --text-gray: #444;
        }

        body {
            font-family: 'Segoe UI', sans-serif;
            background: var(--light-bg);
            margin: 0;
            padding: 0;
            color: var(--dark-gray);
        }

        .header {
            width: 100%;
            background: #fff;
            padding: 10px 20px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
            display: flex;
            justify-content: flex-end;
            align-items: center;
            font-size: 14px;
            color: var(--dark-gray);
            box-sizing: border-box;
        }

        .right-section {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .admin-button {
            background: var(--orange);
            color: white;
            padding: 6px 12px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: bold;
            transition: background 0.3s;
        }

        .admin-button:hover {
            background: #e57c13;
        }

        .container {
            max-width: 450px;
            margin: 30px auto;
            background: #fff;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 0 20px rgba(0,0,0,0.08);
        }

        .logo-container {
            text-align: center;
            margin: 20px auto 30px;
        }

        .logo-container img {
            width: 250px;
            height: auto;
        }

        h2 {
            text-align: center;
            color: var(--dark-gray);
            margin-bottom: 25px;
        }

        label {
            margin: 10px 0 5px;
            display: block;
            color: var(--text-gray);
        }

        select, input[type="password"] {
            width: 100%;
            padding: 10px 12px;
            border: 1px solid #ccc;
            border-radius: 6px;
            margin-bottom: 15px;
            font-size: 16px;
            box-sizing: border-box;
            height: 44px;
        }

        .btn-group {
            display: flex;
            justify-content: space-between;
            gap: 10px;
        }

        button {
            flex: 1;
            padding: 10px;
            background: var(--orange);
            border: none;
            color: white;
            font-weight: bold;
            border-radius: 6px;
            cursor: pointer;
            transition: background 0.3s ease;
        }

        button:hover {
            background: #e57c13;
        }

        @media (max-width: 500px) {
            .btn-group {
                flex-direction: column;
            }

            button {
                width: 100%;
                margin-bottom: 10px;
            }

            .header {
                flex-direction: column;
                align-items: flex-start;
            }
        }