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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            background-color: #f8f9fa;
            min-height: 100vh;
        }

        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 2rem;
            background: white;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 600;
            color: #059669;
        }

        .return-btn {
            background: #059669;
            color: white;
            border: none;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            cursor: pointer;
            font-size: 0.875rem;
            transition: background-color 0.2s;
        }

        .return-btn:hover {
            background: #047857;
        }

        .main-container {
            display: flex;
            min-height: calc(100vh - 80px);
            max-width: 1200px;
            margin: 2rem auto;
            background: white;
            border-radius: 12px;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            overflow: hidden;
        }

        .left-panel {
            flex: 1;
            background: linear-gradient(135deg, #059669, #047857);
            padding: 3rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .decorative-dots {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 200px;
            height: 200px;
        }

        .dot {
            position: absolute;
            width: 4px;
            height: 4px;
            background: rgba(255, 255, 255, 0.6);
            border-radius: 50%;
        }

        .welcome-text {
            color: white;
            text-align: center;
            z-index: 2;
            position: relative;
        }

        .welcome-text h2 {
            font-size: 2rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .welcome-text p {
            font-size: 1rem;
            opacity: 0.9;
        }

        .right-panel {
            flex: 1;
            padding: 3rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .login-header {
            text-align: center;
            margin-bottom: 2rem;
        }

        .login-logo {
            font-size: 2rem;
            font-weight: 600;
            color: #059669;
            margin-bottom: 0.5rem;
        }

        .login-subtitle {
            color: #6b7280;
            font-size: 0.875rem;
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            color: #374151;
            font-weight: 500;
            font-size: 0.875rem;
        }

        .form-group input {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid #d1d5db;
            border-radius: 6px;
            font-size: 0.875rem;
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .form-group input:focus {
            outline: none;
            border-color: #059669;
            box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1);
        }

        .password-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.5rem;
        }

        .forgot-password {
            color: #6b7280;
            text-decoration: none;
            font-size: 0.75rem;
        }

        .forgot-password:hover {
            color: #059669;
        }

        .password-requirements {
            margin-top: 0.5rem;
            font-size: 0.75rem;
        }

        .requirement {
            display: flex;
            align-items: center;
            margin-bottom: 0.25rem;
            color: #6b7280;
        }

        .requirement.valid {
            color: #059669;
        }

        .requirement-icon {
            width: 12px;
            height: 12px;
            margin-right: 0.5rem;
            border-radius: 50%;
            border: 1px solid currentColor;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 8px;
        }

        .requirement.valid .requirement-icon {
            background: #059669;
            color: white;
        }

        .login-btn {
            width: 100%;
            background: #059669;
            color: white;
            border: none;
            padding: 0.875rem;
            border-radius: 6px;
            font-size: 0.875rem;
            font-weight: 500;
            cursor: pointer;
            transition: background-color 0.2s;
            margin-top: 1rem;
        }

        .login-btn:hover {
            background: #047857;
        }

        .login-btn:disabled {
            background: #9ca3af;
            cursor: not-allowed;
        }

        @media (max-width: 768px) {
            .main-container {
                flex-direction: column;
                margin: 1rem;
            }
            
            .left-panel {
                min-height: 200px;
                padding: 2rem;
            }
            
            .right-panel {
                padding: 2rem;
            }
        }