* {
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #1a1a2e;
            color: #e6e6e6;
            margin: 0;
            padding: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
        }
        
        .container {
            background-color: #2d2d44;
            border-radius: 8px;
            padding: 30px;
            width: 100%;
            max-width: 420px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }
        
        h1 {
            text-align: center;
            margin-top: 0;
            margin-bottom: 20px;
            color: #ffcc66;
            font-weight: 600;
        }
        
        .toggle-link {
            color: #ffcc66;
            cursor: pointer;
            text-decoration: none;
            display: inline-block;
            margin-bottom: 10px;
            font-weight: 500;
        }
        
        .toggle-link:hover {
            text-decoration: underline;
        }
        
        .form-container {
            margin-bottom: 12px;
        }
        
        .form-group {
            position: relative;
            margin: 16px 0;
        }
        
        .form-input {
            width: 100%;
            padding: 16px 12px 6px;
            background: #3a3a52;
            border: 1px solid #555;
            border-radius: 4px;
            color: white;
            font-size: 16px;
            transition: border-color 0.2s;
        }
        
        .form-input:focus {
            outline: none;
            border-color: #ffcc66;
        }
        
        .form-label {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            pointer-events: none;
            color: #bbb;
            transition: 0.2s;
            font-size: 16px;
        }
        
        .form-input:focus + .form-label,
        .form-input:not(:placeholder-shown) + .form-label {
            top: 8px;
            font-size: 12px;
            color: #ffcc66;
        }
        
        .password-container {
            position: relative;
        }
        
        .password-toggle {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            cursor: pointer;
            font-size: 18px;
            color: #ccc;
            user-select: none;
        }
        
        .btn {
            margin-top: 8px;
            padding: 10px 16px;
            background-color: #ffcc66;
            color: #2d2d44;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            width: 100%;
            font-size: 16px;
            transition: background-color 0.2s;
        }
        
        .btn:hover {
            background-color: #ffd580;
        }
        
        hr {
            margin: 20px 0;
            border: 0;
            border-top: 1px solid #444;
        }
        
        h3 {
            margin: 6px 0 12px 0;
            color: #e6e6e6;
            font-weight: 500;
        }
        
        .signup-link {
            margin-top: 12px;
            font-size: 0.95em;
            color: #ddd;
            text-align: center;
        }
        
        .signup-link a {
            color: #ffcc66;
            text-decoration: none;
        }
        
        .signup-link a:hover {
            text-decoration: underline;
        }
        
        .return-link {
            margin-top: 20px;
            text-align: center;
        }
        
        .return-link a {
            color: #ffcc66;
            text-decoration: none;
        }
        
        .return-link a:hover {
            text-decoration: underline;
        }